Light source apparatus, method for manufacturing light source apparatus, and display apparatus comprising light source apparatus

A display apparatus includes a liquid crystal panel; and a light source apparatus including a substrate on which a plurality of light emitting diodes (LEDs) are arranged where the plurality of LEDs include a plurality of first LEDs configured to be connected in series to each other by a wiring formed on the substrate, and a plurality of second LEDs configured to be connected in series to each other by a wiring formed on the substrate, and the substrate includes a first connection portion formed between a first LED of the plurality of first LEDs and a second LED of the plurality of second LEDs.

BACKGROUND

Field

The disclosure relates to a light source apparatus, a method for manufacturing the light source apparatus and a display apparatus including the light source apparatus.

Description of Related Art

In general, display apparatuses are a type of output devices for visually displaying obtained or stored image information to a user, and are used in various fields such as home or workplace.

The display apparatuses include, for example, a monitor device connected to a personal computer or a server computer, a portable computer device, a navigation terminal device, a general television device, Internet Protocol Television (IPTV), portable terminal devices such as a smartphone, tablet Personal Computer (PC), a Personal Digital Assistant (PDA) or a cellular phone, various display apparatuses used to reproduce images such as advertisements or movies in an industrial field, or various kinds of audio/video systems.

The display apparatus (self-luminous display or non-self-luminous display) includes a light source apparatus for converting electric information into visual information, and the light source apparatus includes a plurality of light sources for independently emitting light. For example, each of the plurality of light sources includes a Light Emitting Diode (LED) or an Organic LED (OLED).

In particular, a local dimming technology is applied to a light source apparatus (backlight unit) of a non-self-luminous display to improve the contrast ratio of an image. The plurality of light sources are divided into a plurality of dimming blocks, and a driving device may control a driving current supplied to the light sources included in one or more dimming blocks.

The driving devices and the light sources (e.g., light emitting diodes) may be fixed to a substrate using Surface Mount Technology (SMT).

Even though the number of light emitting diodes fixed on the substrate is the same, the number of light emitting diodes included in the dimming block varies depending on the resolution of a display apparatus, and a wiring arrangement and the number of driving devices may also vary. Accordingly, various types of substrates are required depending on a resolution.

SUMMARY

According to an embodiment of the disclosure, a display apparatus may include a liquid crystal panel; and a light source apparatus including a substrate on which a plurality of light emitting diodes (LEDs) are arranged, wherein the plurality of LEDs include: a plurality of first LEDs configured to be connected in series to each other by a wiring (e.g., conductive pattern) formed on the substrate; and a plurality of second LEDs configured to be connected in series to each other by a wiring formed on the substrate where the substrate may include a first connection portion formed between a first LED of the plurality of first LEDs and a second LED of the plurality of second LEDs, based on the first connection portion electrically connecting the first LED of the plurality of first LEDs and the second LED of the plurality of second LEDs, the plurality of first LEDs and the plurality of second LEDs may be configured to operate as a same dimming block, and based on the first connection portion not electrically connecting the first LED of the plurality of first LEDs and the second LED of the plurality of second LEDs, the plurality of first LEDs and the plurality of second LEDs may be configured to operate as different dimming blocks.

The first connection portion may be configured to electrically connect the first LED of the plurality of first LEDs and the second LED of the plurality of second LEDs based on whether a jumper component is mounted on the first connection portion.

Based on the first connection portion electrically connecting the first LED of the plurality of first LEDs and the second LED of the plurality of second LEDs, the plurality of first LEDs and the plurality of second LEDs may be configured to be connected in series.

Based on the first connection portion electrically connecting the first LED of the plurality of first LEDs and the second LED of the plurality of second LEDs, the first LED may be configured to be connected to a dummy wiring that is formed on the substrate and is extended to a predetermined position connectable to a driving device.

Based on the first connection portion electrically connecting the first LED of the plurality of first LEDs and the second LED of the plurality of second LEDs, the second LED may be configured to be connected to a dummy wiring that is formed on the substrate and is extended to a predetermined position connectable to a driving power source that applies a driving voltage.

Based on the first connection portion electrically connecting the first LED of the plurality of first LEDs and the second LED of the plurality of second LEDs, a third LED of the plurality of first LEDs may be configured to be connected to a driving power source through a wiring formed on the substrate, and a fourth LED of the plurality of second LEDs may be configured to be connected to a driving device through a wiring formed on the substrate.

The plurality of first LEDs and the plurality of second LEDs may be configured to be operated with a same driving current.

Based on the first connection portion not electrically connecting the first LED of the plurality of first LEDs and the second LED of the plurality of second LEDs, the first LED may be configured to be connected to a first driving device by a wiring formed on the substrate, and the second LED may be configured to be connected to a first driving power source by a wiring formed on the substrate.

Based on the first connection portion not electrically connecting the first LED of the plurality of first LEDs and the second LED of the plurality of second LEDs, a fifth LED of the plurality of first LEDs may be configured to be connected to a second driving power source by a wiring formed on the substrate, and a sixth LED of the plurality of second LEDs may be configured to be connected to a first driving device by a wiring formed on the substrate.

Based on the first connection portion electrically connecting the first LED of the plurality of first LEDs and the second LED of the plurality of second LEDs, a fifth LED of the plurality of first LEDs may be configured to be connected to a second driving power source by a wiring formed on the substrate, and a sixth LED of the plurality of second LEDs may be configured to be connected to a second driving device by a wiring formed on the substrate.

Based on the first connection portion not electrically connecting the first LED of the plurality of first LEDs and the second LED of the plurality of second LEDs, the plurality of first LEDs and the plurality of second LEDs may be configured to be operated with different driving currents.

A number of first LEDs and a number of second LEDs may be equal to each other.

The plurality of LEDs may further include a plurality of third LEDs configured to be connected in series by a wiring formed on the substrate, and the substrate may further include a second connection portion formed between the second LED of the plurality of second LEDs and a seventh LED of the plurality of third LEDs.

The display apparatus may further include a dimming driver configured to control the light source apparatus, the plurality of LEDs may be provided on a first side of the substrate, a second side of the substrate may include a first mounting portion and a second mounting portion disposed in different positions, and only one of the first mounting portion or the second mounting portion may be configured to be connected to a connector of the dimming driver.

According to an embodiment of the disclosure, a method for manufacturing a light source apparatus may include: forming a wiring on a substrate: forming a connection portion on the substrate; and mounting a plurality of light emitting diodes (LEDs) on the substrate where the connection portion may be formed between a first LED of a plurality of first LEDs connected in series to each other by a wiring formed on the substrate, and a second LED of a plurality of second LEDs connected in series to each other by a wiring formed on the substrate, and based on the connection portion electrically connecting the first LED of the plurality of first LEDs and the second LED of the plurality of second LEDs, the plurality of first LEDs and the plurality of second LEDs may operate as a same dimming block, and based on the connection portion not electrically connecting the first LED of the plurality of first LEDs and the second LED of the plurality of second LEDs, the plurality of first LEDs and the plurality of second LEDs may operate as different dimming blocks.

DETAILED DESCRIPTION

Embodiments described in the specification and configurations shown in the accompanying drawings are merely examples of the disclosure, and various modifications may replace the embodiments and the drawings of the disclosure at the time of filing of the application.

The terms used herein are only for the purpose of describing particular embodiments and are not intended to limit to the disclosure.

For example, a singular form of a noun corresponding to an item may include one item or a plurality of the items unless context clearly indicates otherwise.

As used herein, each of the expressions “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and “at least one of A, B, or C,” may include one or all possible combinations of the items listed together with a corresponding expression among the expressions. For example, “at least one of A or B,” may include ‘A’, ‘B’, and ‘A and B’. “At least one of A and B,” may include ‘A’, ‘B’, and ‘A and B’. In another example, “at least one of A, B, or C,” may include ‘A’, ‘B’, ‘C’, ‘A and B’, ‘B and C’, ‘A and C’, and ‘A, B and C’, and “at least one of A, B, and C,” may include ‘A’, ‘B’, ‘C’, ‘A and B’, ‘B and C’, ‘A and C’, and ‘A, B and C’.

As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. For example, the term “A, B, and/or C,” may include ‘A’, ‘B’, ‘C’, ‘A and B’, ‘Band C’, ‘A and C’, and ‘A, B and C’.

It will be understood that the terms “first”, “second”, etc., may be used only to distinguish one component from another, not intended to limit the corresponding component in other aspects (e.g., importance or order).

When it is said that one (e.g., first) component is “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicatively”, it means that one component can be connected to the other component directly (e.g., by wire), wirelessly, or through a third component.

It will be understood that when the terms “includes,” “comprises,” “including,” and/or “comprising,” when used in this specification, specify the presence of stated features, figures, steps, operations, components, members, or combinations thereof, but do not preclude the presence or addition of one or more other features, figures, steps, operations, components, members, or combinations thereof.

An expression that one component is “connected”, “coupled”, “supported”, or “in contact” with another component includes a case in which the components are directly “connected”, “coupled”, “supported”, or “in contact” with each other and a case in which the components are indirectly “connected”, “coupled”, “supported”, or “in contact” with each other through a third component.

It will also be understood that when one component is referred to as being “on” or “over” another component, it can be directly on the other component or intervening components may also be present.

Further, the terms such as “˜part”, “˜device”, “˜block”, “˜member”, “˜module”, and the like may refer to a unit for processing at least one function or act. For example, the terms may refer to at least one process processed by at least one hardware, such as field-programmable gate array (FPGA)/application specific integrated circuit (ASIC), software stored in memories or processors.

Reference numerals used for method steps are just used for convenience of description, but not to limit an order of the steps. Thus, unless the context clearly dictates otherwise, the written order may be practiced otherwise.

Hereinafter, embodiments of the disclosure are described in detail with reference to the accompanying drawings.

FIG.1illustrates an example of an appearance of a display apparatus according to an embodiment.

Referring toFIG.1, a display apparatus10is a device capable of processing an image signal received from the outside and visually displaying a processed image. Hereinafter, a case in which the display apparatus10is a television (TV) is exemplified, but is not limited thereto. For example, the display apparatus10may be implemented in various forms, such as a monitor, a portable multimedia device, a portable communication device, and the like, and the form of the display apparatus10is not limited as long as it is a device that visually displays an image.

In addition, the display apparatus10may be a Large Format Display (LFD) installed outdoors, such as on a roof of a building or at a bus stop. The outdoors is not necessarily limited to the outdoors, and the display apparatus10may be installed wherever a large number of people may enter and exit, even indoors such as at subway stations, shopping malls, movie theaters, office buildings, and stores.

The display apparatus10may receive content including a video signal and an audio signal from various content sources, and output video and audio corresponding to the video signal and the audio signal, respectively. For example, the display apparatus10may receive content data through a broadcast reception antenna or a wired cable, receive content data from a content playback apparatus, or receive content data from a content-providing server of a content provider.

As shown inFIG.1, the display apparatus10may include a body11and a screen12for displaying an image I.

The body11forms an exterior of the display apparatus10, and components of the display apparatus10for displaying the image I and performing various functions may be provided inside the body101. It is illustrated inFIG.1that the body11has a flat plate shape, but the shape of the body11is not limited to the flat plate shape shown inFIG.1. For example, the body11may have a curved plate shape.

The screen12is formed on a front surface of the body11, and displays the image I. For example, the screen12may display a still image or a video, as well as a two-dimensional (2D) plane image or a three-dimensional (3D) stereoscopic image using binocular parallax of a user.

The screen12may include a liquid crystal panel capable of transmitting or blocking light emitted by a light source apparatus, or the like.

A plurality of pixels P may be formed on the screen12, and the image I displayed on the screen12may be formed by light emitted from each of the plurality of pixels P. For example, the image I may be formed on the screen12by combining light emitted from the plurality of pixels P like a mosaic.

Each of the plurality of pixels P may emit light of various brightness and various colors. In order to emit light of various colors, each of the plurality of pixels P may include sub-pixels PR, PG, and PB.

The sub-pixels PR, PG, and PBmay include a red sub-pixel PRcapable of emitting red light, a green sub-pixel PGcapable of emitting green light, and a blue sub-pixel PBcapable of emitting blue light. For example, the red light may represent light having a wavelength of approximately 700 nm (nanometers, one billionth of a meter) to 800 nm, the green light may represent light having a wavelength of approximately 500 nm to 600 nm, and the blue light may represent light having a wavelength of approximately 400 nm to 500 nm.

By combining the red light of the red sub-pixel PR, the green light of the green sub-pixel PG, and the blue light of the blue sub-pixel PB, each of the plurality of pixels P may emit light of various brightness and various colors.

FIG.2illustrates an example of a configuration of a display apparatus according to an embodiment.FIG.3illustrates an example of a liquid crystal panel included in a display apparatus according to an embodiment.

As shown inFIG.2, various components for generating an image I on the screen12may be provided in the body11.

For example, the body11may include a light source apparatus100which is a surface light source, a liquid crystal panel20blocking or transmitting light emitted from the light source apparatus100, a control assembly50controlling operations of the light source apparatus100and the liquid crystal panel20, and a power supply assembly60supplying power to the light source apparatus100and the liquid crystal panel20. In addition, the body11may include a bezel13, a frame middle mold14, a bottom chassis15, and a rear cover16for supporting the liquid crystal panel20, the light source apparatus100, the control assembly50, and the power supply assembly60.

The light source apparatus100may include a point light source that emits white light, and may refract, reflect, and scatter the light to convert the light emitted from the point light source into a uniform surface light. As described above, the light source apparatus100may refract, reflect, and scatter the light emitted from the point light source to emit a uniform surface light in a forward direction.

The light source apparatus100will be described in more detail below.

The liquid crystal panel20may be provided in front of the light source apparatus100, and may block or transmit light emitted from the light source apparatus100to form the image I.

A front surface of the liquid crystal panel20may form the screen12of the display apparatus10described above, and the liquid crystal panel20may form the plurality of pixels P. The plurality of pixels P of the liquid crystal panel20may independently block or transmit the light emitted from the light source apparatus100. The light transmitted through the plurality of pixels P may form the image I to be displayed on the screen12.

For example, as shown inFIG.3, the liquid crystal panel20may include a first polarizing film21, a first transparent substrate22, a pixel electrode23, a Thin-Film Transistor (TFT)24, a liquid crystal layer25, a common electrode26, a color filter27, a second transparent substrate28, and a second polarizing film29.

The first transparent substrate22and the second transparent substrate28may fixedly support the pixel electrode23, the thin-film transistor24, the liquid crystal layer25, the common electrode26, and the color filter27. The first and second transparent substrates22and28may be formed of tempered glass or transparent resin.

The first polarizing film21and the second polarizing film29may be provided on outer sides of the first and second transparent substrates22and28, respectively. The first polarizing film21and the second polarizing film29may each transmit specific polarized light and block (reflect or absorb) the other polarized light. For example, the first polarizing film21may transmit light polarized in a first direction and block (reflect or absorb) the other polarized light. In addition, the second polarizing film29may transmit light polarized in a second direction and block (reflect or absorb) the other polarized light. In this instance, the first direction and the second direction may be orthogonal to each other. Thus, the polarized light passing through the first polarizing film21may not directly pass through the second polarizing film29.

The color filter27may be provided on an inner side of the second transparent substrate28. The color filter27may include, for example, a red filter27R transmitting red light, a green filter27G transmitting green light, and a blue filter27B transmitting blue light. In addition, the red filter27R, the green filter27G, and the blue filter27B may be disposed parallel to each other. A region occupied by the color filter27may correspond to the pixel P described above. A region occupied by the red filter27R may correspond to the red sub-pixel PR, a region occupied by the green filter27G may correspond to the green sub-pixel PG, and a region occupied by the blue filter27B may correspond to the blue sub-pixel PB.

The color filter27in which the red filter27R, the green filter27G that passes green light, and the blue filter27G that passes blue light are formed may be replaced with a quantum dot sheet layer.

The pixel electrode23may be provided on an inner side of the first transparent substrate22, and the common electrode26may be provided on the inner side of the second transparent substrate28. The pixel electrode23and the common electrode26may be formed of a metal material through which electricity is conducted and may generate an electric field for changing the arrangement of liquid crystal molecules115aconstituting the liquid crystal layer25to be described below.

The Thin-Film Transistor (TFT)24may be provided on the inner side of the second transparent substrate22. The thin-film transistor24may be turned on (closed) or off (opened) by image data provided from a panel driver30. In addition, by turning the thin-film transistor24on (closing) or off (opening), an electric field may be formed or removed from between the pixel electrode23and the common electrode26.

The liquid crystal layer25may be formed between the pixel electrode23and the common electrode26and may be filled with liquid crystal molecules25a. The liquid crystal may represent an intermediate state between a solid (crystal) and a liquid. The liquid crystal may exhibit optical properties depending on a change of the electric field. For example, an arrangement direction of the molecules constituting the liquid crystal may change depending on the change of the electric field. As a result, optical properties of the liquid crystal layer25may change according to the presence or absence of the electric field passing through the liquid crystal layer25. For example, the liquid crystal layer25may rotate a polarization direction of light about an optical axis according to the presence or absence of the electric field. Accordingly, the polarized light that has passed through the first polarizing film21may be changed in polarization direction while passing through the liquid crystal layer25and may pass through the second polarizing film29.

A cable20athrough which image data is transmitted to the liquid crystal panel20and a Display Driver Integrated circuit (DDI)30(hereinafter, referred to as the “panel driver”) that processes digital image data and outputs an analog image signal are provided on one side of the liquid crystal panel20.

The cable20amay electrically connect between the control assembly50/power supply assembly60and the panel driver30, and may also electrically connect between the panel driver30and the liquid crystal panel20. The cable20amay include a flexible flat cable, a film cable, or the like that may be bendable.

The panel driver30may receive image data and power from the control assembly50/the power supply assembly60through the cable20a. Further, the panel driver30may provide image data and driving current to the liquid crystal panel20through the cable20a.

In addition, the cable20aand the panel driver30may be integrally implemented as a film cable, a Chip On Film (COF), a Tape Carrier Package (TCP), or the like. In other words, the panel driver30may be disposed on the cable20a. However, the disclosure is not limited thereto, and the panel driver30may be disposed on the liquid crystal panel20.

The control assembly50may include a control circuit that controls operations of the liquid crystal panel20and the light source apparatus100. For example, the control circuit may process a video signal and/or an audio signal received from an external content source, transmit the image data to the liquid crystal panel20, and transmit dimming data to the light source apparatus100.

The power supply assembly60may include a power circuit supplying power to the liquid crystal panel20and the light source apparatus100. The power circuit may supply power to the control assembly50, the light source apparatus100, and the liquid crystal panel20.

The control assembly50and the power supply assembly60may be implemented with a printed circuit board and various circuits mounted on the printed circuit board. For example, the power circuit may include a condenser, a coil, a resistance element, a processor, and the like and a power circuit board on which these elements are mounted. In addition, the control circuit may include a memory, a processor, and a control circuit board on which these elements are mounted.

FIG.4illustrates an example of the light source apparatus100included in a display apparatus according to an embodiment.FIG.5is a diagram illustrating that a plurality of light sources are divided into a plurality of dimming blocks according to an embodiment.

As shown inFIG.4, the light source apparatus100may include a light source module110generating light, a reflector sheet120reflecting light, a diffuser plate130uniformly diffusing light, and an optical sheet140improving luminance of the output light.

The light source module110may include a plurality of light sources111emitting light, and a substrate112fixedly supporting the plurality of light sources111.

The plurality of light sources111may be arranged in a predetermined pattern to allow light to be emitted with uniform luminance. The plurality of light sources111may be arranged to allow a distance between a single light source and each light source adjacent thereto to be the same.

For example, as shown inFIG.4, the plurality of light sources111may be aligned in rows and columns. Accordingly, the plurality of light sources may be arranged to form an approximate square by four adjacent light sources. In addition, any one light source is disposed adjacent to four light sources, and a distance between the single light source and each of the four light sources adjacent to the single light source may be substantially the same.

Furthermore, according to embodiments, the plurality of light sources111may be arranged to allow an approximately equilateral triangle to be formed by three adjacent light sources. In this case, a single light source may be disposed adjacent to six light sources, and a distance between the single light source and each of the six adjacent light sources may be approximately the same.

However, the arrangement in which the plurality of light sources111are disposed is not limited to the arrangement described above, and the plurality of light sources111may be disposed in various patterns to allow light to be emitted with uniform luminance.

The light source111may employ an element capable of emitting monochromatic light (light having a specific range of wavelengths, for example, blue light) or white light (for example, mixed light of red light, green light, and blue light) in various directions by receiving power. For example, the light source111may include a Light Emitting Diode (LED). The LED may be implemented in a variety of sizes and may include, for example, Mini LEDs and/or Micro LEDs.

The substrate112may fix the plurality of light sources111to prevent positions of the light sources111from being changed. In addition, the substrate112may supply each light source111with power for the light source111to emit light.

The substrate112may fix the plurality of light sources111. The substrate112may include a synthetic resin and/or tempered glass and/or a Printed Circuit Board (PCB) on which a conductive power feed line for supplying power to the light source111is formed.

Various types of wiring may be formed on the substrate112to supply power to the light source111. In order to form various types of wiring on the substrate112, the printed circuit board may be formed of a plurality of layers.

The reflector sheet120may allow light emitted from the plurality of light sources111to be reflected forward or in a direction close to the forward direction.

A plurality of through holes120acorresponding respectively to the plurality of light sources111of the light source module110may be formed in the reflector sheet120. The light sources111of the light source module110may pass through the through holes120aand protrude forward of the reflector sheet120.

For example, in an assembly process of the reflector sheet120and the light source module110, the plurality of light sources111of the light source module110are inserted into the plurality of through holes120aformed in the reflector sheet120. As a result, the substrate112of the light source module110may be located at the rear of the reflector sheet120, but the plurality of light sources111of the light source module110may be located at the front of the reflector sheet120.

Accordingly, the plurality of light sources111may emit light in front of the reflector sheet120.

The plurality of light sources111may emit light in front of the reflector sheet120in various directions. Light may be emitted from the light source111not only toward the diffuser plate130, but also toward the reflector sheet120, and the reflector sheet120may reflect the light emitted toward the reflector sheet120toward the diffuser plate130.

The light emitted from the light source111may pass various objects such as the diffuser plate130, the optical sheet140, and the like. When the light passes the diffuser plate130and the optical sheet140, a portion of the incident light is reflected from surfaces of the diffuser plate130and the optical sheet140. The reflector sheet120may reflect the light reflected by the diffuser plate130and the optical sheet140.

The diffuser plate130may be disposed in front of the light source module110and the reflector sheet120to uniformly disperse the light emitted from the light source111of the light source module110.

As described above, the plurality of light sources111may be located on a rear surface of the light source apparatus100. The plurality of light sources111are equidistantly arranged on the rear surface of the light source apparatus100, but differences in luminance may exist depending on the positions of the plurality of light sources111.

To eliminate the difference in luminance due to the plurality of light sources111, the diffuser plate130may diffuse the light emitted from the plurality of light sources111within the diffuser plate130. In other words, the diffuser plate130may uniformly emit non-uniform light forward from the plurality of light sources111.

The optical sheet140may include various sheets for improving luminance or luminance uniformity. For example, the optical sheet140may include a diffuser sheet141, a first prism sheet142, a second prism sheet143, a reflective polarizing sheet144, and the like.

The diffuser sheet141diffuses light for uniformity of luminance. The light emitted from the light source111may be diffused by the diffuser plate130and then diffused again by the diffuser sheet141included in the optical sheet140.

The first and second prism sheets142and143may concentrate the light diffused by the diffuser sheet141, thereby increasing the luminance. The first and second prism sheets142and143may have triangular prism patterns arranged adjacent to each other to form a plurality of bands.

The reflective polarizing sheet144may be a kind of polarizing film, and may transmit a portion of the incident light, and reflect other portions to improve luminance. For example, the reflective polarizing sheet144may transmit light polarized in the same direction as a predetermined polarization direction of the reflective polarizing sheet144and reflect light polarized in a different direction from the predetermined polarization direction. In addition, the light reflected by the reflective polarizing sheet144may be reused within the light source apparatus100, and such light reuse may improve the luminance of the display apparatus10.

The optical sheet140is not limited to the sheets or films shown inFIG.4, and may further include a variety of sheets or films such as protective sheets, films, and the like.

The light source apparatus100may include the plurality of light sources111, and may output surface light by diffusing the light emitted from the plurality of light sources111. The liquid crystal panel20may include a plurality of pixels, and the plurality of pixels may be controlled to allow each of the plurality of pixels to transmit and/or block light. An image may be formed by light passing through each of the plurality of pixels.

In this instance, the display apparatus10may perform local dimming to vary a brightness of light for each region of the light source apparatus100in association with the output image to improve power consumption while increasing contrast.

For example, the display apparatus10may reduce the brightness of light of the light source111of the light source apparatus100corresponding to a dark portion of an image to make the dark portion of the image darker, and may increase the brightness of light of the light source111of the light source apparatus100corresponding to a bright portion of the image to make the bright portion of the image brighter. As a result, a contrast ratio of the image may be improved.

The light source apparatus100included in the display apparatus10may be divided into a plurality of blocks, and for each block, the current may be adjusted independently according to an input image. Image transmission of the display apparatus10is performed through local dimming drives frame-by-frame, and the current driving is adjusted according to the number of divided blocks of the light sources111in the light source apparatus100.

As a result, the display apparatus10may effectively improve a contrast ratio by lowering a supply current to the dimming blocks corresponding to regions where the input image is dark and increasing the supply current to the dimming blocks corresponding to regions where the input image is bright.

For local dimming, the plurality of light sources111included in the light source apparatus100may be divided into a plurality of dimming blocks200.

According to various embodiments, the k number of light sources111may be classified into n dimming blocks or m dimming blocks (k, n, m are natural numbers). For example, the k number of light sources111may be classified (divided) into n dimming blocks, each of which includes k/n light sources111. Here, k/n refers to k divided by n. In another example, the k number of light sources111may be classified (divided) into m dimming blocks, each of which includes k/m light sources111. Here, k/m refers to k divided by m, n and m may be different from each other, and k may be a multiple of n and m.

For example, when k is 120, n may be 20, m may be 10, and the120light sources111may be classified into 20 dimming blocks, each of which includes 6 light sources111, or may be classified into 10 dimming blocks, each of which includes 12 light sources111.

The k/n number of light sources111or the k/m number of light sources111included in each dimming block may be arranged in a matrix form. A matrix in which the k/n number of light sources111or the k/m number of light sources111included in each dimming block are arranged may have the same number of rows or the same number of columns.

According to various embodiments, k/n may be 9 or less, and k/m may be 12 or more. That is, the plurality of light sources111may be divided into dimming blocks, each of which includes 9 or less LEDs or includes 12 or more LEDs.

Referring toFIG.5, each of the plurality of dimming blocks200may include at least one light source111. The light source apparatus100may supply the same driving current to the light sources111belonging to the same dimming block200, and the light sources111belonging to the same dimming block200may emit light of the same brightness.

In addition, the light source apparatus100may supply different driving currents to the light sources111belonging to different dimming blocks200according to dimming data, and the light sources111belonging to different dimming blocks200may emit light of different brightness.

Each of the plurality of dimming blocks200may include, for example, N*M light sources arranged in an N*M matrix (N, M are natural numbers). An N*M matrix refers to a matrix with N rows and M columns.

Because each of the light sources111includes an LED, each of the plurality of dimming blocks200may include N*M LEDs. According to various embodiments, N*M may be equal to k/n or k/m.

According to various embodiments, each of the light sources111may further include an optical dome or an optical lens. The optical dome may cover the LED. The optical dome may prevent or suppress damage to the LED due to external mechanical action and/or due to chemical action.

A thickness of the light source apparatus100may also be thinner to allow the display apparatus10to be thinner. To reduce the thickness of the light source apparatus100, each of the plurality of light sources111becomes thinner and a structure thereof is simplified.

The LED constituting the light source111may be directly attached to the substrate112using a Chip On Board (COB) method. For example, the light source111may include an LED in which an LED chip or an LED die is directly attached to the substrate112without separate packaging.

The LED constituting the light source111may be manufactured as a flip-chip type. In the flip-chip type LED, when an LED, which is a semiconductor element, is attached to the substrate112, an electrode pattern of the semiconductor element may be directly fused to the substrate112without using an intermediate medium, such as a metal lead (wire) or a Ball Grid Array (BGA). As described above, because the metal lead (wire) or BGA is omitted, the light source111including the flip-chip type LED may be miniaturized.

Although the flip-chip type LED directly fused to the substrate112in a chip on board method has been described above, the light source111is not limited to the flip-chip type LED. For example, the light source111may include a package-type LED.

The plurality of dimming blocks200may be disposed on the substrate112. That is, N*M light emitting diodes may be disposed on the substrate112.

FIG.6is a control block diagram illustrating a display apparatus according to an embodiment.

As shown inFIG.6, the display apparatus10may include a content receiver80, an image processor90, a panel driver30, the liquid crystal panel20, a dimming driver170, and the light source apparatus100.

The content receiver80may include a tuner82and a receiving terminal81receiving content including a video signal and/or audio signal from content sources.

The receiving terminal81may receive the video signal and audio signal from content sources through a cable. For example, the receiving terminal81may include a component (YPbPr/RGB) terminal, a Composite Video Blanking and Sync (CVBS) terminal, an audio terminal, a High Definition Multimedia Interface (HDMI) terminal, and a Universal Serial Bus (USB) terminal.

The tuner82may receive a broadcast signal from a broadcast reception antenna or a wired cable. In addition, the tuner82may extract a broadcast signal of a channel selected by a user from among broadcast signals. For example, the tuner82may pass a broadcast signal having a frequency corresponding to the channel selected by the user among a plurality of broadcast signals received through the broadcast reception antenna or wired cable, and may block a broadcast signal having a frequency different from the frequency corresponding to the channel selected by the user.

As described above, the content receiver80may receive the video signal and/or audio signal from the content sources through the receiving terminal81and/or the tuner82. The content receiver80may output the video signal and/or audio signal received through the receiving terminal81and/or the tuner82to the image processor90.

The image processor90may include a processor91processing image data, and a memory92storing programs and data for processing the image data.

The memory92may store programs and data for processing a video signal and/or an audio signal. In addition, the memory92may temporarily store data generated while processing the video signal and/or audio signal.

The memory92may include a non-volatile memory such as Read Only Memory (ROM) and flash memory, and a volatile memory such as Static Random Access Memory (S-RAM), Dynamic Random Access Memory (D-RAM), and the like.

The processor91may receive the video signal and/or audio signal from the content receiver80. The processor91may decode the video signal into image data. The processor91may generate dimming data from the image data. In addition, the processor91may output the image data and the dimming data to the panel driver30and the dimming driver170, respectively.

As such, the image processor90may generate the image data and the dimming data from the video signal obtained by the content receiver80. The image processor90may also transmit the image data and the dimming data to the liquid crystal panel20and the light source apparatus100, respectively.

The image data may include information about an intensity of light transmitted by each of a plurality of pixels (or a plurality of subpixels) included in the liquid crystal panel20. The image data may be provided to the liquid crystal panel20through the panel driver30.

The liquid crystal panel20may include a plurality of pixels capable of transmitting or blocking light, and the plurality of pixels are arranged in a matrix form. In other words, the plurality of pixels may be arranged in a plurality of rows and a plurality of columns.

The panel driver30may receive the image data from the image processor90. The panel driver30may drive the liquid crystal panel20according to the image data. In other words, the panel driver30may convert image data, which is a digital signal (hereinafter, referred to as ‘digital image data’), into an analog image signal, which is an analog voltage signal. The panel driver30may provide the converted analog image signal to the liquid crystal panel20. Optical properties (e.g., light transmittance) of the plurality of pixels included in the liquid crystal panel20may change according to the analog image signal.

The panel driver30may include, for example, a timing controller, a data driver, a scan driver, and the like.

The timing controller may receive the image data from the image processor90. The timing controller may output image data and a drive control signal to the data driver and the scan driver. The drive control signal may include a scan control signal and a data control signal. The scan control signal and the data control signal may be used to control operations of the scan driver and the data driver, respectively.

The scan driver may receive a scan control signal from the timing controller. The scan driver may activate any one of the plurality of rows in the liquid crystal panel20according to the scan control signal. In other words, the scan driver may convert a state of pixels included in a single row among the plurality of pixels arranged in the plurality of rows and the plurality of columns, into a state capable of receiving an analog image signal. In this instance, other pixels except for the pixels activated by the scan driver may not receive the analog image signal.

The data driver may receive the image data and the data control signal from the timing controller. The data driver may output the image data to the liquid crystal panel20according to the data control signal. For example, the data driver may receive the digital image data from the timing controller. The data driver may convert the digital image data into an analog image signal. In addition, the data driver may provide the analog image signal to the pixels included in any one row activated by the scan driver. In this instance, the pixels activated by the scan driver may receive the analog image signal. Optical properties (e.g., light transmittance) of the activated pixels may change according to the received analog image signals.

As described above, the panel driver30may drive the liquid crystal panel20according to image data. As a result, an image corresponding to the image data may be displayed on the liquid crystal panel20.

The dimming driver170may control the light source apparatus100.

Dimming data may include information about an intensity of light emitted by each of the plurality of light sources (or the plurality of dimming blocks) included in the light source apparatus100. The dimming data may be provided to the light source apparatus100through the dimming driver170.

The light source apparatus100may include the plurality of light sources111that emit light. The plurality of light sources111are arranged in a matrix form. In other words, the plurality of light sources111may be arranged in a plurality of rows and a plurality of columns.

The light source apparatus100may be divided into a plurality of dimming blocks200. In addition, each of the plurality of dimming blocks200may include at least one light source.

The light source apparatus100may output surface light by diffusing light emitted from the plurality of light sources111. The liquid crystal panel20may include a plurality of pixels, and may control each of the plurality of pixels to pass or block light. An image may be formed by light passing through each of the plurality of pixels.

In this instance, the light source apparatus100may turn off a plurality of light sources corresponding to a dark part of the image in order to make the dark part of the image darker. Accordingly, the dark part of the image becomes darker, thereby improving a contrast ratio of the image.

As described above, the light source apparatus100controls the plurality of light sources to emit light in an area corresponding to a bright part of the image and controls the plurality of light sources not to emit light in an area corresponding to the dark part of the image, which is hereinafter referred to as “local dimming”.

For local dimming, the plurality of light sources111included in the light source apparatus100may be divided into a plurality of dimming blocks200, as shown inFIG.5. InFIG.5, a total of 60 dimming blocks in five rows and twelve columns are shown, but the number and arrangement of dimming blocks are not limited to the number and arrangement of the dimming blocks shown inFIG.5.

Each of the plurality of dimming blocks200may include at least one light source111. The light source apparatus100may supply the same driving current to light sources belonging to the same dimming block200, and the light sources belonging to the same dimming block200may emit light of the same brightness. For example, light sources belonging to the same dimming block200are connected to each other in series, and thus the same driving current may be supplied to the light sources belonging to the same dimming block200.

In addition, the light source apparatus100may further include a plurality of driving devices300controlling driving current supplied to light sources included in each of the plurality of dimming blocks200(see,FIG.7). The driving devices300may be provided to correspond to at least a single dimming block200each. In other words, each of the driving devices300may drive each of the dimming blocks200.

The driving device300may include an integrated circuit chip for controlling a driving current applied to the at least one dimming block200.

As described above, because light sources belonging to a dimming block are connected to each other in series, the light sources included in the dimming block may operate as one unit and form a light source block.

Accordingly, hereinafter, “supplying a driving current to a dimming block” may be interpreted as “supplying a driving current to light sources included in a dimming block”.

Although dimming blocks each including nine light sources are shown inFIG.5, the number and arrangement of light sources included in each dimming block are not limited to the number and arrangement of the light sources shown inFIG.5.

As described above, the image processor90may provide dimming data for local dimming to the dimming driver170. The dimming data may include information about a luminance of each of the plurality of dimming blocks200. For example, the dimming data may include information about an intensity of light output by the light sources included in each of the plurality of dimming blocks200.

The image processor90may obtain the dimming data from the image data.

The image processor90may convert the image data into the dimming data in various manners. For example, the image processor90may divide an image I based on the image data into a plurality of image blocks. The number of image blocks is equal to the number of dimming blocks200, and the plurality of image blocks may correspond to the plurality of dimming blocks200, respectively.

The image processor90may obtain luminance values of the plurality of dimming blocks200from the image data of the plurality of image blocks. The image processor90may also generate the dimming data by combining the luminance values of the plurality of dimming blocks200.

For example, the image processor90may obtain a luminance value of each of the plurality of dimming blocks200based on a maximum value among luminance values of pixels included in each of the image blocks.

A single image block includes a plurality of pixels, and image data of a single image block may include image data of a plurality of pixels (e.g., red data, green data, blue data, etc.). The image processor90may calculate the luminance value of each of the pixels based on the image data of each of the pixels.

The image processor90may determine the maximum value among the luminance values of pixels included in an image block as a luminance value of the dimming block200corresponding to the image block. For example, the image processor90may determine a maximum value among luminance values of pixels included in the ithimage block as a luminance value of the ithdimming block, and may determine a maximum value among luminance values of pixels included in the jthimage block as a luminance value of the jthdimming block.

The image processor90may generate dimming data by combining the luminance values of the plurality of dimming blocks200.

The dimming driver170may receive the dimming data from the image processor90. The dimming driver170may drive the light source apparatus100according to the dimming data. Here, the dimming data may include information about a luminance of each of the plurality of dimming blocks200or information about a brightness of the light sources included in each of the plurality of dimming blocks200.

The dimming driver170may convert the dimming data, which is a digital voltage signal, into an analog driving current.

For example, the dimming driver170may sequentially provide an analog dimming signal to the driving devices300corresponding respectively to the dimming blocks200, in an active matrix method.

The plurality of dimming blocks200may be divided into a plurality of groups. A driving current may be supplied simultaneously to the dimming blocks200belonging to the same group, and a driving current may be supplied sequentially at different times to the dimming blocks200belonging to different groups. The dimming driver170may activate the dimming blocks200belonging to any one of the plurality of groups, and provide an analog dimming signal to the activated dimming blocks. Thereafter, the dimming driver170may activate the dimming blocks200belonging to another group and provide an analog dimming signal to the activated dimming blocks. For example, the dimming blocks located in the same row may belong to the same group, and the dimming blocks located in different rows may belong to different groups, but the group classification method is not limited thereto. The dimming driver170may activate the dimming blocks200belonging to a single group and provide an analog dimming signal to the activated dimming blocks. Thereafter, the dimming driver170may activate the dimming blocks in another row and provide an analog dimming signal to the activated dimming blocks.

The plurality of dimming blocks200may be divided into a plurality of groups, each of which is connected to the same driving device300. For example, the plurality of dimming blocks200may be divided into a first group of dimming blocks connected to a first driving device and a second group of dimming blocks connected to a second driving device.

A driving circuit of each of the dimming blocks200may provide an analog driving current corresponding to an analog dimming signal to the light source module110. The light sources111included in the light source module110may emit light by the analog driving current. The light sources belonging to the same dimming block may emit light of the same intensity according to the dimming data. In addition, the light sources belonging to different dimming blocks may emit light of different intensities according to the dimming data.

FIG.7illustrates a connection structure among a dimming driver, a driving device, and a dimming block according to an embodiment.

Referring toFIG.7, each of the plurality of dimming blocks may include a plurality of light sources111(LEDs) connected to each other in series.

For example, assuming that a single dimming block200includes a first LED, a second LED, a third LED, and a fourth LED, an anode of the first LED may be connected to a power wiring, a cathode of the first LED may be connected to an anode of the second LED, a cathode of the second LED may be connected to an anode of the third LED, a cathode of the third LED may be connected to an anode of the fourth LED, and a cathode of the fourth LED may be connected to the driving device300.

That is, among the plurality of light sources111included in the single dimming block200and connected in series, the first light source111in the series connection may be connected to the power wiring400to receive power (the driving voltage VLED), and the last light source111in the series connection may be connected to the driving device300.

The driving device300may receive an analog dimming signal from the dimming driver170while activated by the dimming driver170, and store the received analog dimming signal. In addition, while inactivated, the plurality of driving devices300may supply a driving current corresponding to the stored analog dimming signal to the plurality of light sources (plurality of LEDs)111.

The driving device300may control the driving current supplied to each of the plurality of dimming blocks200in a state where the driving voltage VLEDis applied to the plurality of dimming blocks200.

To this end, the display apparatus10may include a plurality of scan lines S for providing scan signals to the plurality of driving devices300and a plurality of data lines D1and D2for providing analog dimming signals to the plurality of driving devices300.

In addition, the display apparatus10may include a power wiring for providing a driving voltage to the plurality of driving devices300.

The plurality of scan lines S, the plurality of data lines D1and D2, and the power wiring400may be formed on the substrate112.

The plurality of driving devices300may include circuits with various topologies to implement active matrix driving.

For example, each of the plurality of driving devices300may include a circuit with one capacitor two transistor (1C2T) topology. However, the circuit structure of the driving device300is not limited thereto. For example, the driving device300may include a 3T1C topology circuit with an additional transistor to compensate for a body effect of a driving transistor.

For example, the driving device300may be provided as a single chip with an integrated driving circuit. In other words, a driving circuit may be integrated into one semiconductor chip.

The dimming driver170may transmit dimming data corresponding to an input image to the plurality of driving devices300through the data lines D1and D2.

In addition, the dimming driver170may transmit a timing signal corresponding to a light emission time of the plurality of dimming blocks200to the plurality of driving devices300through the scan line S.

The plurality of driving devices300may control the driving current supplied to each of the plurality of dimming blocks200based on the dimming data and the timing signal.

InFIG.7, only a portion of the plurality of dimming blocks200are shown. For local dimming, the display apparatus10according to an embodiment requires more dimming blocks200, driving devices300, data lines D1and D2, scan lines S and power wiring400connecting the driving devices300and the dimming blocks200.

In an embodiment, a wiring may include the data lines D1and D2, the scan lines S, the power wiring400, wirings (hereinafter referred to as ‘control wiring’) that connect the plurality of driving devices300and the plurality of dimming blocks200, and wirings (hereinafter referred to as ‘block wiring’) that connect the plurality of light sources, but the types of wiring are not limited thereto. For example, the wiring may include a wiring (hereinafter referred to as ‘timing wiring’) that connect the plurality of driving devices300.

In addition, the wiring may be formed on the substrate112(e.g., a printed circuit board). As such, wirings that perform various functions may be formed on the substrate112.

Conventionally, two types of substrates were required to classify the k number of light sources into the n number of dimming blocks or the m number of dimming blocks.

For example, in order to classify 120 LEDs into 20 dimming blocks, a wiring for connecting 6 LEDs in series is required to be formed on the substrate, and in order to classify 120 LEDs into 10 dimming blocks, a wiring for connecting 12 LEDs in series is required to be formed on the substrate.

That is, conventionally, because the number of LEDs included in each dimming block varies depending on a resolution of display apparatus, various substrates were required for various resolutions of display apparatus.

As will be described later, according to the disclosure, a display apparatus having different resolutions may be manufactured using a single type of substrate.

That is, according to the disclosure, by mounting a driving device and an electronic device (or electronic element, or electronic component) (e.g., a jumper) on a single type of substrate, a first light source apparatus in which a plurality of light sources may be classified into n dimming blocks and a second light source apparatus in which a plurality of light sources may be classified into m dimming blocks may be manufactured.

FIG.8illustrates a method for manufacturing a substrate for a light source apparatus according to an embodiment.

A method for manufacturing the substrate112for a light source apparatus according to an embodiment may include forming a wiring on the substrate112(1000). The substrate112may include a printed circuit board.

The wiring formed on the substrate112may include at least one of a dimming wiring for connecting the plurality of LEDs111in series, a control wiring for connecting the plurality of LEDs111and the driving device300, a power wiring for connecting the plurality of LEDs111and a driving power source, a timing wiring, a data wiring, or a source wiring.

The method for manufacturing the substrate112for light source apparatus according to an embodiment may include forming a connection portion on the substrate112(1100).

In an embodiment, the connection portion may refer to a part that may be treated as an electrical path or a non-electrical path depending on whether an electronic device (e.g., a jumper component) is mounted. For example, the connection portion may include solder mask opening.

The connection portion may be electrically connected or electrically blocked depending on whether a jumper component is mounted.

The solder mask opening may include an outer layer of the substrate112without a mask. The solder mask opening may expose the wiring formed on the substrate112to tin (solder). Electronic devices may be mounted on the solder mask opening. However, an example of the connection portion is not limited thereto, and any part that may be treated as an electrical path or a non-electrical path depending on whether an electronic device (e.g., a jumper component) is mounted may be interpreted as a connection portion.

The forming of the wiring on the substrate112(1000) and the forming of the connection portion (1100) may be performed in any order during the manufacturing process of the substrate112.

For example, the connection portion may be formed while the wiring is formed on the substrate112, the connection portion may be formed after the wiring is formed on the substrate112, or the wiring may be formed after the connection portion is formed on the substrate112.

According to various embodiments, the wiring and/or the connection portion may be formed on a first side of the substrate112.

According to various embodiments, the connection portion may be formed between a dimming wiring for connecting the plurality of first LEDs111ain series and a dimming wiring for connecting the plurality of second LEDs111bin series (see, e.g.,FIG.9).

The substrate112may include a connection portion formed between any one LED of the plurality of first LEDs111aand any one LED of the plurality of second LEDs111b.

Depending on whether the connection portion is electrically connected or blocked, the number of dimming blocks200formed on the substrate112and the number of LEDs111included in each dimming block may vary. The electrical connection of the connection portion may indicate that the connection portion is treated as an electrical path, and the electrical blocking of the connection portion may indicate that the connection portion is treated as a non-electrical path.

The substrate112may be provided as a single-layer or as a multi-layer.

At least one electronic component may be mounted on the substrate112. The electronic components may be mounted on the substrate112using an Insert Mount Technology (IMT) or Surface Mount Technology (SMT), without being limited thereto. The electronic components may include an LED.

The method for manufacturing the substrate112for a light source apparatus according to an embodiment may include mounting the plurality of LEDs111on the substrate112on which the wiring and/or the connection portion is formed (1200).

The plurality of LEDs111may be mounted on the first side of the substrate112.

The plurality of LEDs111may be arranged in a matrix form, and may be classified into a plurality of groups connected to each other in series by a wiring formed on the substrate112.

The plurality of LEDs111belonging to each of the plurality of groups may be connected to each other in series by a wiring formed on the substrate112, and may be electrically disconnected from LEDs belonging to another group.

The plurality of LEDs111belonging to each of the plurality of groups may be arranged in a matrix form.

The plurality of groups may be arranged in a matrix form on the substrate112.

According to various embodiments, at least one LED of the plurality of LEDs111belonging to each of the plurality of groups may be connected to a wiring extended to a predetermined position. For example, the predetermined position may include a position where the driving device300may be mounted and/or a position connectable to a driving power source.

In an embodiment, an anode of any one LED of the plurality of LEDs111belonging to each of the plurality of groups may be connected to a wiring extended to a predetermined position connectable to a driving power source, and a cathode of the any one LED may be connected to another LED. In an embodiment, a cathode of any one LED of the plurality of LEDs111belonging to each of the plurality of groups may be connected to a wiring extended to a predetermined position where the driving device300may be mounted, and an anode of the any one LED may be connected to another LED.

FIG.9illustrates an example of a substrate for a light source apparatus according to an embodiment.FIG.10illustrates an example of a substrate for a light source apparatus according to an embodiment.

Referring toFIG.9andFIG.10, the plurality of LEDs111may include the plurality of first LEDs111aconnected in series to each other by a wiring w formed on the substrate112, and the plurality of second LEDs111bconnected in series to each other by a wiring w formed on the substrate112.

The plurality of first LEDs111amay belong to a first group, and the plurality of second LEDs111bmay belong to a second group.

As shown inFIG.9orFIG.10, the first group and the second group may be adjacent to each other in a column direction, but the positional relationship between the first group and the second group is not limited thereto. For example, the first group and the second group may be adjacent to each other in a row direction.

The plurality of first LEDs111amay be connected in series to each other by the wiring w (e.g., a first dimming wiring Wa) formed on the substrate112. The plurality of second LEDs111bmay be connected in series to each other by the wiring w (e.g., a second dimming wiring Wb) formed on the substrate112.

Any one LED a1(hereinafter referred to as ‘third LED’) among the plurality of first LEDs111amay be connected to a wiring Wa1extended to a predetermined position. According to various embodiments, the predetermined position may be a position where the driving device300may be mounted or a position connectable to a driving power source.

Another LED a2(hereinafter referred to as ‘first LED’) among the plurality of first LEDs111amay be connected to a wiring Wa2extended to a predetermined position. According to various embodiments, the predetermined position may be a position connectable to a driving power source or a position where the driving device300may be mounted.

Any one LED b1(hereinafter referred to as ‘second LED’) among the plurality of second LEDs111bmay be connected to a wiring Wb1extended to a predetermined position. According to various embodiments, the predetermined position may be a position where the driving device300may be mounted or a position connectable to a driving power source.

Another LED b2(hereinafter referred to as ‘fourth LED’) among the plurality of second LEDs111bmay be connected to a wiring Wb2extended to a predetermined position. According to various embodiments, the predetermined position may be a position connectable to a driving power source or a position where the driving device300may be mounted.

In a case where the first group and the second group are adjacent to each other in the column direction, a connection portion SA may be formed between the first group and the second group. In a case where the first group and the second group are adjacent to each other in the row direction, a connection portion SA may be formed between the first group and the second group.

The connection portion SA may be formed between the first LED a2and the second LED b1.

For example, in a case where the plurality of first LEDs111aare arranged at an upper side and the plurality of second LEDs111bare arranged at a lower side, the connection portion SA may be formed between any one LED in the lowest row among the plurality of first LEDs111aand any one LED in the uppermost row among the plurality of second LEDs111b.

In another example, in a case where the plurality of first LEDs111aare arranged on the left and the plurality of second LEDs111bare arranged on the right, the connection portion SA may be formed between any one LED in the rightmost column among the plurality of first LEDs111aand any one LED in the leftmost column among the plurality of second LEDs111b.

In an embodiment, the connection portion SA may be formed between the first LED a2connected to the wiring Wa2extended to the predetermined position among the plurality of first LEDs111a, and the second LED b1connected to the wiring Wb1extended to the predetermined position from among the plurality of second LEDs111b. By the wiring w formed on the substrate, any one of an anode or a cathode of each of the first LED a2and the second LED b1may be connected to another LED, and the other of the anode or the cathode of each of the first LED a2and the second LED b1may be connected to a component other than an LED.

According to various embodiments, as shown inFIG.9, the wirings Wa and Wb for connecting the plurality of LEDs111in series may connect all the LEDs in the same row in a horizontal direction. Accordingly, the wirings Wa and Wb for connecting the plurality of LEDs111in series may be formed in a zigzag pattern oriented in the vertical direction.

However, the arrangement of the wirings Wa and Wb for connecting the plurality of LEDs111in series is not limited thereto, and various arrangements to connect the plurality of LEDs111in series may be implemented.

For example, as shown inFIG.10, the wirings Wa and Wb for connecting the plurality of LEDs111in series may connect all the LEDs in the same column in the vertical direction. Accordingly, the wirings Wa and Wb for connecting the plurality of LEDs111in series may be formed in a zigzag pattern oriented in the horizontal direction.

An electronic device (e.g., a jumper component) may be mounted on the connection portion SA in the subsequent manufacturing processes.

A jumper component J may be mounted on the connection portion SA (see, e.g.,FIG.11). The jumper component J may refer to a conductor soldered to the connection portion SA of the substrate112to electrically connect two points.

By mounting the jumper component J on the connection portion SA, the first LED a2connected to the wiring Wa2extended to the predetermined position among the plurality of first LEDs111aand the second LED b1connected to the wiring Wb1extended to the predetermined position may be electrically connected. Accordingly, the plurality of first LEDs111aand the plurality of second LEDs111bmay be connected in series to each other and may form a single group (or dimming block200).

According to various embodiments, any one of the wiring Wa2extended to the predetermined position among the plurality of first LEDs111aand the wiring Wb1extended to the predetermined position among the plurality of second LEDs111bmay be extended to a position connectable to a driving power source that applies a driving voltage to an LED, and the other one may be extended to a position where the driving device300may be mounted.

For example, the wiring Wa2extended to the predetermined position among the plurality of first LEDs111amay be extended to the position connectable to the driving power source, and the wiring Wb1extended to a predetermined position among the plurality of second LEDs111bmay be extended to the position where the driving device300may be mounted. Accordingly, the wiring Wa1extended to the predetermined position among the plurality of first LEDs111amay be extended to the position where the driving device300may be mounted, and the wiring Wb2extended to the predetermined position among the plurality of second LEDs111bmay be extended to the position connectable to the driving power source.

In another example, the wiring Wb1extended to the predetermined position among the plurality of second LEDs111bmay be extended to the position connectable to the driving power source, and the wiring Wa2extended to the predetermined position among the plurality of first LEDs111amay be extended to the position where the driving device300may be mounted. Accordingly, the wiring Wa1extended to the predetermined position among the plurality of first LEDs111amay be extended to the position connectable to the driving power source, and the wiring Wb2extended to the predetermined position among the plurality of second LEDs111bmay be extended to the position connectable to the driving device300.

According to various embodiments, in a case where the jumper component J is not mounted on the connection portion SA, the plurality of first LEDs111aand the plurality of second LEDs111bare electrically blocked, and may be operated as different dimming blocks200. In a case where the jumper component J is mounted on the connection portion SA, the plurality of first LEDs111aand the plurality of second LEDs111bare electrically connected, and may operate as the same dimming block200.

AlthoughFIG.9andFIG.10show only the plurality of first LEDs111aand the plurality of second LEDs111b, the substrate112may include a plurality of LEDs111having the same relationship as a relationship between the plurality of first LEDs111aand the plurality of second LEDs111b.

In an embodiment, based on the connection portion SA being electrically blocked, i.e. not electrically connecting the plurality of first LEDs111aand the plurality of second LEDs111b, the plurality of first LEDs111aand the plurality of second LEDs111bmay operate as different dimming blocks. The plurality of first LEDs111aand the plurality of second LEDs111boperate as different dimming blocks, which may indicate that the plurality of first LEDs111aand the plurality of second LEDs111bare operated with different driving currents. That is, the plurality of first LEDs111aand the plurality of second LEDs111boperating as different dimming blocks may indicate that the plurality of first LEDs111aand the plurality of second LEDs111bmay emit light at different timings.

In an embodiment, based on the connection portion SA being electrically connected, the plurality of first LEDs111aand the plurality of second LEDs111bmay operate as the same dimming block. The plurality of first LEDs111aand the plurality of second LEDs111boperate as the same dimming block, which may indicate that the plurality of first LEDs111aand the plurality of second LEDs111bare operated with the same driving current. That is, the plurality of first LEDs111aand the plurality of second LEDs111boperating as the same dimming block may indicate that the plurality of first LEDs111aand the plurality of second LEDs111bemit light at the same timing.

According to various embodiments, the number of first LEDs111aand the number of second LEDs111bmay be the same. For example, the number of first LEDs111aand the number of second LEDs111bmay each ben (e.g.,6). In this instance, the total number of LEDs111on the substrate112may be k (e.g.,1200), which is a multiple of 2n. In addition, the number of groups of n LEDs111connected to each other may be k/n. As a result, depending on whether the jumper component J is mounted on the connection portion SA, the substrate112may include k/n (e.g.,200) dimming blocks200or k/2n (e.g.,100) dimming blocks200. In this instance, any n and k may be used as long as they are numbers that satisfy the above conditions.

As a resolution of the display apparatus10improves, the number of dimming blocks200required increases. Accordingly, in a case where a resolution of the display apparatus10is a first resolution (e.g., 8K), the light source apparatus100may be manufactured without mounting the jumper component J on the connection portion SA, thereby forming k/n dimming blocks200. In a case where the resolution of the display apparatus10is a second resolution (e.g., 4K) lower than the first resolution, the light source apparatus100including the connection portion SA on which the jumper component J is mounted may be manufactured, thereby forming k/2n dimming blocks200.

Referring back toFIG.8, through the operation1000, operation1100, and operation1200, the substrate112on which the wiring w and the connection portion SA are formed and the plurality of LEDs111are mounted may be manufactured.

The substrate112on which the wiring w and the connection portion SA are formed and the plurality of LEDs111are mounted may be used in the subsequent manufacturing process of the display apparatus10. For example, when it is desired to manufacture the display apparatus10having the first resolution, the substrate112may be manufactured as the substrate112for the first light source apparatus through a process of manufacturing the first light source apparatus100. In another example, when it is desired to manufacture the display apparatus10having the second resolution lower than the first resolution, the substrate112may be manufactured as the substrate112for the second light source apparatus through a process of manufacturing the second light source apparatus100.

The process of manufacturing the first light source apparatus100may include mounting a plurality of first driving devices300on the substrate112(1300).

Positions where the plurality of first driving devices300are to be mounted may be designed in advance. For example, the plurality of first driving devices300may be mounted at a predetermined position connectable to any one of the plurality of first LEDs111athrough the wiring Wa1or Wa2, and may be mounted at a predetermined position connectable to any one of the plurality of second LEDs111bthrough the wiring Wb1or Wb2.

The process of manufacturing the second light source apparatus100may include mounting a plurality of jumper components J and a plurality of second driving devices300on the substrate112(1400).

Positions where the plurality of second driving devices300are to be mounted may be designed in advance. For example, the plurality of second driving devices300may be mounted at a predetermined position connectable to any one of the plurality of first LEDs111athrough the wiring Wa1, or may be mounted at a predetermined position connectable to any one of the plurality of second LEDs111bthrough the wiring Wb2.

According to various embodiments, the first light source apparatus100has a greater number of dimming blocks200than the second light source apparatus100, and thus the first light source apparatus100may require a greater number of driving devices300than the second light source apparatus100.

According to various embodiments, the positions where the plurality of second driving devices300are to be mounted may or may not be included in the positions where the plurality of first driving devices300are to be mounted.

For example, the plurality of second driving devices300mounted on the second light source apparatus100may be part of the plurality of first driving devices300.

Based on the connection portion SA being electrically connected, the substrate112may include a plurality of first dimming blocks. Based on the connection portion SA being electrically blocked, the substrate112may include a plurality of second dimming blocks. The number of first dimming blocks may be less than the number of second dimming blocks. The number of LEDs111included in each of the plurality of first dimming blocks may be greater than the number of LEDs111included in each of the plurality of second dimming blocks.

According to the disclosure, by forming the connection portion SA between the plurality of first LEDs111aand the plurality of second LEDs111b, the number of dimming blocks200(or the number of LEDs included in the dimming block200) on the substrate112may be designed in the manufacturing process.

According to the disclosure, a single substrate112may be used to manufacture the display apparatuses10having different resolutions.

According to the disclosure, ease of management of the substrate112may be increased.

FIG.11illustrates an example where the substrate for the light source apparatus shown inFIG.9is used as a second light source apparatus.FIG.12illustrates an example where the substrate for the light source apparatus shown inFIG.10is used as a second light source apparatus.

Referring toFIG.11andFIG.12, the second light source apparatus100may be connected to the control assembly50/power supply assembly60of the display apparatus10.

The control assembly50/power supply assembly60of the display apparatus10may include the dimming driver170(seeFIG.6).

The dimming driver170may include a driving power source60athat applies a driving voltage VLED. The dimming driver170may transmit a control signal for controlling the driving device300through a wiring w formed on the substrate112.

The second light source apparatus100may include a jumper component J connecting the plurality of first LEDs111aand the plurality of second LEDs111b.

The first LED a2and the second LED b1may be connected by the jumper component J, thereby allowing the plurality of first LEDs111aand the plurality of second LEDs111bto be connected in series.

As the first LED a2and the second LED b1are connected by the jumper component J, the wiring Wa2connected to the first LED a2may become redundant. Here, redundant wiring is defined as a dummy wiring. The first LED a2may be connected to the dummy wiring Wa2extended to a predetermined position. Because the dummy wiring Wa2is not connected to any component, the dummy wiring Wa2may be treated as an open circuit.

As the first LED a2and the second LED b1are connected by the jumper component J, the wiring Wb1connected to the second LED b1may become redundant. The second LED b1may be connected to the dummy wiring Wb1extended to a predetermined position. Because the dummy wiring Wb1is not connected to any component, the wiring Wb1may be treated as an open circuit.

The third LED a1of the plurality of first LEDs111amay be connected to the driving power source60athrough the wiring Wa1formed on the substrate112.

The fourth LED b2of the plurality of second LEDs111bmay be connected to the driving device300through the wiring Wb2formed on the substrate112.

According to various embodiments, the third LED a1of the plurality of first LEDs111amay be connected to the driving device300through the wiring Wa1formed on the substrate112, and the fourth LED b2of the plurality of second LEDs111bmay be connected to the driving power source60athrough the wiring Wb2formed on the substrate112.

A current flowing through the plurality of first LEDs111amay flow to the plurality of second LEDs111b. Accordingly, the plurality of first LEDs111aand the plurality of second LEDs111bmay operate as a single dimming block200. For example, in a case where the plurality of first LEDs111aare controlled to emit light of a first brightness, the plurality of second LEDs111bmay also be controlled to emit light of the first brightness.

The driving power source60amay apply a driving voltage VLEDto the dimming block200including the plurality of first LEDs111aand the plurality of second LEDs111b.

The driving device300may control the current flowing through the dimming block200including the plurality of first LEDs111aand the plurality of second LEDs111b.

According to the disclosure, in a case where the jumper component J is mounted on the connection portion SA formed between the plurality of first LEDs111aand the plurality of second LEDs111b, by the wiring formed on the substrate112, any one LED of the plurality of first LEDs111amay be connected to the driving power source60aand any one LED of the plurality of second LEDs111bmay be connected to the driving device300, and thus the plurality of first LEDs111aand the plurality of second LEDs111bmay operate as a single dimming block200.

FIG.13illustrates an example where the substrate for the light source apparatus shown inFIG.9is used as a first light source apparatus.FIG.14illustrates an example where the substrate for the light source apparatus shown inFIG.10is used as a first light source apparatus.

Referring toFIG.13andFIG.14, the first light source apparatus100may be connected to the control assembly50/power supply assembly60of the display apparatus10.

The control assembly50/power supply assembly60of the display apparatus10may include the dimming driver170.

The dimming driver170may include at least one driving power source (60a,60b) that applies a driving voltage (VLED1, VLED2). According to various embodiments, in order to perform time-division driving control for the dimming blocks200arranged in alternating rows, the display apparatus10may include the first driving power source60a, that applies the first driving voltage VLED1to the dimming blocks200arranged in even rows (or odd rows), and the second driving power source60bthat applies the second driving voltage VLED2arranged in an odd rows (or even rows).

According to various embodiments, the display apparatus10may also include only one driving power source in order to supply the same driving voltage to the dimming blocks200arranged in all rows. That is, the first driving power source60aand the second driving power source60bmay be the same power source.

The dimming driver170may transmit a control signal for controlling the driving device300through the wiring w formed on the substrate112.

A jumper component J connecting the plurality of first LEDs111aand the plurality of second LEDs111bmay not be mounted on the first light source apparatus100. Accordingly, a connection portion SA may be formed between the plurality of first LEDs111aand the plurality of second LEDs111b. According to various embodiments, the connection portion SA may be removed by soldering in manufacturing the first light source apparatus100.

Because the jumper component J is not mounted on the first light source apparatus100, the plurality of first LEDs111aand the plurality of second LEDs111bmay be electrically blocked from each other.

Any one LED of the plurality of first LEDs111amay be connected to the first driving power source60athrough the wiring Wa1formed on the substrate112, and another LED of the plurality of first LEDs111amay be connected to the first driving device300athrough the wiring Wa2formed on the substrate112.

Any one LED of the plurality of second LEDs111bmay be connected to the second driving power source60bthrough the wiring Wb1formed on the substrate112, and another LED of the plurality of second LEDs111bmay be connected to the second driving device300bthrough the wiring Wb2formed on the substrate112.

According to the embodiment, the plurality of first LEDs111aand the plurality of second LEDs111bmay operate as different dimming blocks200. For example, in a case where the plurality of first LEDs111aare controlled to emit light of a first brightness, the plurality of second LEDs111bmay be controlled to emit light of a second brightness different from the first brightness.

Although it is shown inFIG.13andFIG.14that the first driving device300aand the second driving device300bare separate configurations, the first driving device300aand the second driving device300bmay be the same driving device300, or may be different driving devices300. For example, the driving device300that controls a driving current supplied to the dimming block200formed by the plurality of first LEDs111amay also control a driving current supplied to the dimming block200formed by the plurality of second LEDs111b.

According to various embodiments, a connection portion SA may be formed between an LED connected to the first driving power source60aor the first driving device300a, and an LED connected to the second driving power source60bor the second driving device300b.

ComparingFIG.11andFIG.12toFIG.13andFIG.14, the wirings Wa2and Wb1, which are treated as dummy wiring in the second light source apparatus100, are used as a wiring connected to the driving power source60aor60bor the driving device300in the first light source apparatus100.

According to the disclosure, by forming the dummy wiring on the substrate112, the first light source apparatus100or the second light source apparatus100may be manufactured using a single type of substrate112.

According to various embodiments, not only the second light source apparatus100but also the first light source apparatus100may have dummy wiring depending on the number and/or type of driving devices300and the number and/or type of driving power source to be disposed on the substrate112.

FIG.15illustrates an example of connection relationship between a first light source apparatus and a dimming driver of a display apparatus according to an embodiment.FIG.16illustrates an example of connection relationship between a second light source apparatus and a dimming driver of a display apparatus according to an embodiment.

A wiring w may be formed on the substrate112.

For example, a wiring connected to a driving power source, a wiring for connecting the plurality of dimming blocks200and the plurality of driving devices300, a wiring for transmitting a data signal and/or source signal output from the dimming driver170to the plurality of driving devices300(e.g., data wiring, source wiring, and connection wiring to connect the driving devices300) may be formed on the substrate112.

To simplify the drawings, the wiring for transmitting a data signal and/or source signal output from the dimming driver170to the plurality of driving devices300(e.g., data wiring, source wiring, and connection wiring to connect the driving devices300) is omitted.

Each of the plurality of driving devices300may be mounted at a predetermined position on the substrate112.

According to various embodiments, each of the plurality of driving devices300may be a q-channel driving device that may control q dimming blocks200(q is a natural number). For example, as shown inFIG.15andFIG.16, each of the plurality of driving devices300may be a 4-channel driving device that may control four dimming blocks200.

According to various embodiments, in order to unify types of the plurality of driving devices300, in manufacturing the first light source apparatus100and the second light source apparatus100, the plurality of driving devices300having the same channel may be mounted in different positions.

Referring toFIG.15, the plurality of driving devices300mounted on the first light source apparatus100may be provided between the plurality of dimming blocks200. However, the position of the plurality of driving devices300is not limited thereto, and any position may be selected as a position of the plurality of driving devices300, as long as it may be electrically connected to the q number of adjacent dimming blocks200by the wiring w formed on the substrate112.

The driving power source may be connected to any one LED of the LEDs included in each of the plurality of dimming blocks200through the wiring w formed on the substrate112. The driving device300may be connected to another LED of the LEDs included in each of the plurality of dimming blocks200through the wiring w formed on the substrate112.

Hereinafter, for convenience of description, among the LEDs included in each of the plurality of dimming blocks200, the LED connected to the driving power source is defined as a ‘start LED’, and the LED connected to the driving device300is defined as a ‘last LED’.

According to various embodiments, a pattern of the wiring w formed on the substrate112to connect the dimming blocks200in a first column may be symmetrical to a pattern of the wiring w formed on the substrate112to connect the dimming blocks200in a second column adjacent to the first column.

According to the disclosure, a last LED of the dimming blocks200in the first column may be disposed close to a last LED of the dimming blocks200in the second column, thereby reducing wiring complexity.

According to various embodiments, in a case where a connection portion SA is formed between the dimming blocks200in a first row and the dimming blocks200in a second row adjacent to the first row, a connection portion SA may not be formed between the dimming blocks200in the second row and the dimming blocks200in a third row adjacent to the second row.

That is, the connection relationship described inFIG.9toFIG.14between the plurality of first LEDs111aand the plurality of second LEDs111bmay be repeatedly implemented on the substrate112. For example, assuming that a plurality of third LEDs111cconnected in series are provided below the plurality of second LEDs111b, solder opening mask may not be formed between the plurality of second LEDs111band the plurality of third LEDs111c.

Hereinafter, for convenience of description, it is assumed that the number of LEDs111formed on the substrate112is k, the number of LEDs included in a single dimming block200of the first light source apparatus100is n, the number of dimming blocks200of the first light source apparatus100is k/n, the number of LEDs included in a single dimming block200of the second light source apparatus100is 2n, and the number of dimming blocks200of the second light source apparatus100is k/2n.

Referring back toFIG.15, the plurality of driving devices300may be connected to a last LED of the k/n dimming blocks200through the wiring w formed on the substrate112.

In a case where each of the plurality of driving devices300is a q-channel driving device, each of the plurality of driving devices300may be connected to q dimming blocks200, and thus the number of driving devices300required may be k/(n*q). For example, in a case where the number of LEDs111is 1200, the number of LEDs included in a single dimming block200is 6, the number of dimming blocks200is 200, and the driving device300is a 4-channel driving device, fifty driving devices300may be required to control200dimming blocks200.

According to various embodiments, positions of the plurality of first driving devices300mounted on the substrate112of the first light source apparatus100may not overlap positions DA of the plurality of second driving devices300mounted on the substrate112of the second light source apparatus100.

The substrate112of the first light source apparatus100may include a dummy wiring DB extended to the predetermined positions DA where the plurality of second driving devices300are mounted. The dummy wiring DB formed on the substrate112of the first light source apparatus100may correspond to the wiring Wb2described inFIG.9toFIG.14.

Referring toFIG.16, in a case where the number of LEDs included in a single dimming block200in the first light source apparatus100is n, the number of LEDs included in a single dimming block200in the second light source apparatus100is 2n. That is, the plurality of driving devices300in the first light source apparatus100are required to be connected to a last LED of each of the k/n dimming blocks200, while the plurality of driving devices300in the second light source apparatus100are required to be connected to a last LED of each of the k/2n dimming blocks200.

The substrate112of the second light source apparatus100may include a dummy wiring DB extended to predetermined positions DA where the plurality of first driving devices300in the first light source apparatus100are mounted. The dummy wiring DB formed on the substrate112of the second light source apparatus100may correspond to the wirings Wa2and Wb2described inFIG.9toFIG.14.

According to various embodiments, the substrate112of the second light source apparatus100may include a dummy wiring extended to a predetermined position DA connected to the second driving power source60bthat applies the second driving voltage VLED2. The dummy wiring DB formed on the substrate112of the second light source apparatus100may correspond to the wiring Wb1described inFIG.9toFIG.14.

According to the disclosure, by disposing different numbers of driving devices300at different positions on the same substrate112, the first light source apparatus100or the second light source apparatus100may be manufactured.

According to various embodiments, in order to minimize dummy wiring in the first light source apparatus100and/or the second light source apparatus100, in manufacturing the first light source apparatus100and the second light source apparatus100, the plurality of driving devices300having different channels may be mounted at the same position.

FIG.17illustrates an example of connection relationship between a first light source apparatus and a dimming driver of a display apparatus according to an embodiment.FIG.18illustrates an example of connection relationship between a second light source apparatus and a dimming driver of a display apparatus according to an embodiment.

Referring toFIG.17, unlike what is shown inFIG.15, the substrate112of the first light source apparatus100may not include a dummy wiring. A start LED of each of the plurality of dimming blocks200may be connected to the driving power source (60a,60b) through the wiring w formed on the substrate112and may receive driving voltage (VLED1, VLED2). A last LED of each of the plurality of dimming blocks200may be connected to the plurality of first driving devices300through the wiring w formed on the substrate112. Each of the plurality of first driving devices300may include a plurality of nodes that are electrically connectable to all of the wiring connected thereto.

According to various embodiments, the positions where the plurality of first driving devices300inFIG.17are mounted and the positions where the plurality of second driving devices300inFIG.18are mounted may be the same. That is, the number of first driving devices300and the number of second driving devices300may be the same. However, the types of the plurality of first driving devices300and the plurality of second driving devices300may be different from each other. For example, the number of channels of the plurality of second driving devices300may be less than the number of channels of the plurality of first driving devices300. For example, the number of channels of the plurality of second driving devices300may be half of the number of channels of the plurality of first driving devices300.

Referring toFIG.18, similarly to the embodiment ofFIG.16, the substrate112of the second light source apparatus100may include a dummy wiring DB extended to a predetermined position connected to the second driving power source that applies the second driving voltage VLED2. The dummy wiring DB formed on the substrate112of the second light source apparatus100may correspond to the wiring Wb1described inFIG.9toFIG.14.

However, unlike the embodiment ofFIG.16, according to the embodiment ofFIG.18, the plurality of second driving devices300may be mounted at the positions where the plurality of first driving devices300ofFIG.17are disposed.

The plurality of second driving devices300may be connected to a larger number of LEDs than the number of channels through the wiring w. For example, the plurality of second driving devices300may be connected to the wirings Wa2and Wb2described inFIG.9toFIG.14. However, the plurality of second driving devices300may include only the node electrically connectable to the wiring Wb2connected to the last LED of the plurality of second LEDs111bfrom among the wirings Wa2and Wb2described inFIG.9toFIG.14. That is, the plurality of second driving devices300may not include a node connectable to the wiring Wa2connected to the last LED of the plurality of first LEDs111afrom among the wirings Wa2and Wb2described inFIG.9toFIG.14.

Accordingly, among the wirings Wa2and Wb2described inFIG.9toFIG.14, the wiring Wa2connected to the last LED of the plurality of first LEDs111amay be treated as a dummy wiring DB.

According to the embodiment ofFIG.17andFIG.18, only one of the wirings Wa2and Wb2described inFIG.9toFIG.14may be treated as a dummy wiring DB, thereby reducing circuit complexity of the substrate112.

According to various embodiments, in order to minimize circuit complexity in the first light source apparatus100and/or the second light source apparatus100, a relatively large number of driving devices300may be mounted in manufacturing the first light source apparatus100and the second light source apparatus100.

FIG.19illustrates an example of connection relationship between a first light source apparatus and a dimming driver of a display apparatus according to an embodiment.FIG.20illustrates an example of connection relationship between a second light source apparatus and a dimming driver of a display apparatus according to an embodiment.

Referring toFIG.19, the substrate112of the first light source apparatus100may include the plurality of first driving devices300for controlling a driving current applied to the dimming blocks200arranged in one row and adjacent columns.

The plurality of first driving devices300may be connected to the wirings Wa2and Wb2described inFIG.9toFIG.14.

Referring toFIG.20, similarly to the embodiment ofFIG.16, the substrate112of the second light source apparatus100may include a dummy wiring DB extended to a predetermined position DA connected to the second driving power source60bthat applies the second driving voltage VLED2. The dummy wiring DB formed on the substrate112of the second light source apparatus100may correspond to the wiring Wb1described inFIG.9toFIG.14.

The substrate112of the second light source apparatus100may include the plurality of second driving devices300for controlling a driving current applied to the dimming blocks200arranged in one row and adjacent columns.

The number of dimming blocks200in the first light source apparatus100is k/n, which is two times as many as the number of k/2n dimming blocks200in the second light source apparatus100. Accordingly, the number of rows of the matrix formed by the dimming blocks200in the first light source apparatus100may be two times as many as the number of rows of the matrix formed by the dimming blocks200in the second light source apparatus100. The number of first driving devices300may be two times as many as the number of second driving devices300. However, unlike the embodiment ofFIG.16, positions of the plurality of second driving devices300mounted on the substrate112of the second light source apparatus100may overlap positions of the plurality of first driving devices300mounted on the substrate112of the first light source apparatus100.

According to an embodiment, the substrate112of the second light source apparatus100may include a dummy wiring DB extended to a predetermined position DA where half of the plurality of first driving devices300are mounted. The dummy wiring DB formed on the substrate112of the second light source apparatus100may correspond to the wiring Wa2described inFIG.9toFIG.14.

According to the disclosure, because the dummy wiring DB corresponding to the wiring Wa2described inFIG.9toFIG.14does not overlap another wiring, circuit complexity may be reduced.

In addition, according to the disclosure, the second light source apparatus100may be manufactured by removing only the driving devices300alternately arranged in the column direction among the plurality of first driving devices300from the first light source apparatus100.

According to various embodiments, in manufacturing the first light source apparatus100and the second light source apparatus100, by alternately connecting the driving devices300with the dimming blocks200arranged in the column direction, a relatively small number of driving devices300may be mounted, and the complexity of the mounting positions of the driving devices300may be minimized.

FIG.21illustrates an example of connection relationship between a first light source apparatus and a dimming driver of a display apparatus according to an embodiment.FIG.22illustrates an example of connection relationship between a second light source apparatus and a dimming driver of a display apparatus according to an embodiment.

Referring toFIG.21, each of the plurality of first driving devices300may control a driving current supplied to the dimming blocks200arranged in rows that are not adjacent to each other.

For example, any one300aof the plurality of first driving devices300may be connected to the dimming block200arranged in a first row, may not be connected to the dimming block200arranged in a second row adjacent to the first row, and may be connected to the dimming block200arranged in a third row adjacent to the second row. Another one300bof the plurality of first driving devices300may be connected to the dimming block200arranged in the second row, may not be connected to the dimming block200arranged in the third row adjacent to the second row, and may be connected to the dimming block200arranged in a fourth row adjacent to the third row.

As such, each of the plurality of first driving devices300may be alternately connected to the plurality of dimming blocks200in the column direction.

Referring toFIG.22, similarly to the embodiment ofFIG.16, the substrate112of the second light source apparatus100may include a dummy wiring DB extended to a predetermined position connected to the second driving power source that applies the second driving voltage VLED2. The dummy wiring DB formed on the substrate112of the second light source apparatus100may correspond to the wiring Wb1described inFIG.9toFIG.14.

The substrate112of the second light source apparatus100may include the plurality of second driving devices300for controlling a driving current applied to the dimming blocks200arranged in one row and adjacent columns. The plurality of second driving devices300may correspond to the driving device300bconnected to the dimming blocks200arranged in second and fourth rows inFIG.21.

In the example shown inFIG.21, the substrate112of the second light source apparatus100may include a dummy wiring DB extended to a predetermined position DA where the driving device300amay be mounted. The dummy wiring DB formed on the substrate112of the second light source apparatus100may correspond to the wiring Wa2described inFIG.9toFIG.14.

According to the disclosure, the first light source apparatus100or the second light source apparatus100may be manufactured by mounting all the driving devices300at predetermined positions or only at some positions on the substrate112.

The arrangement of the plurality of driving devices300and the arrangement of the dummy wiring DB are not limited to the examples shown inFIG.15toFIG.22, and any arrangement may be used as long as it satisfies the connection relationships described inFIG.9toFIG.14.

According to various embodiments, as shown inFIG.15toFIG.22, positions of the driving devices300, mounted in an area (hereinafter referred to as ‘first area’) between the first column and the second column adjacent to the first column where the dimming blocks200are arranged, may be different from positions of the driving devices300mounted in an area (hereinafter referred to as ‘second area’) between the third column adjacent to the second column and the fourth column adjacent to the third column.

For example, a portion of the driving devices300in the second area may be mounted lower than the driving devices300in the first area. For example, among the driving devices300arranged in the first area, a virtual line connecting the driving device300connected to the dimming block200arranged in the first row in the row direction may not pass through the driving device300connected to the dimming block200arranged in the first row among the driving devices300arranged in the second area.

According to the disclosure, optical defects caused by the plurality of driving devices300may be prevented or suppressed by mounting the driving devices300arranged in different areas at different positions in the corresponding area.

In addition, according to the disclosure, ease of design of connection wiring that connects the plurality of dimming blocks200may be ensured.

The method for manufacturing the light source apparatus100including n dimming blocks200each including k/n LEDs or the light source apparatus100including 2n dimming blocks200each including k/2n LEDs by using a single substrate112including k LEDs has been described above.

Embodiments of the disclosure are not limited thereto, and may be expanded to a method for manufacturing the light source apparatus100including n dimming blocks200each including k/n LEDs or the light source apparatus100including m dimming blocks200each including k/m LEDs. For example, k/n may be 6, and k/m may be 9.

FIG.23illustrates an example of a substrate for a light source apparatus according to an embodiment.

Referring toFIG.23, the plurality of LEDs111may include the plurality of first LEDs111aconnected in series to each other by the wiring Wa formed on the substrate112, the plurality of second LEDs111bconnected in series to each other by the wiring Wb formed on the substrate112, the plurality of third LEDs111cconnected in series to each other by a wiring Wc formed on the substrate112, and a plurality of fourth LEDs111dconnected in series to each other by a wiring Wd formed on the substrate112.

The plurality of first LEDs111amay belong to a first group, the plurality of second LEDs111bmay belong to a second group, the plurality of third LEDs111cmay belong to a third group, and the plurality of fourth LEDs111dmay belong to a fourth group.

As shown inFIG.23, the first to fourth groups may be adjacent to each other in the column direction, but the positional relationship of the first to fourth groups is not limited thereto. For example, the first to fourth groups may be adjacent to each other in the row direction.

The plurality of first LEDs111amay be connected in series to each other by the wiring w (e.g., the first dimming wiring Wa) formed on the substrate112. The plurality of second LEDs111bmay be connected in series to each other by the wiring w (e.g., the second dimming wiring Wb) formed on the substrate112. The plurality of third LEDs111cmay be connected in series to each other by the wiring w (e.g., the third dimming wiring Wc) formed on the substrate112. The plurality of fourth LEDs111dmay be connected in series to each other by the wiring w (e.g., the fourth dimming wiring Wd) formed on the substrate112.

According to various embodiments, the number of first LEDs111aand the number of second LEDs111bmay be different from each other. For example, the number of first LEDs111amay be two times as many as the number of second LEDs111b. According to various embodiments, the number of first LEDs111aand the number of third LEDs111cmay be different from each other. For example, the number of first LEDs111amay be two times as many as the number of third LEDs111c. According to various embodiments, the number of first LEDs111aand the number of fourth LEDs111dmay be the same.

Any one LED a1of the plurality of first LEDs111amay be connected to a wiring Wa1extended to a predetermined position. According to various embodiments, the predetermined position may be a position where the driving device300may be mounted or a position connectable to a driving power source.

Another LED a2of the plurality of first LEDs111amay be connected to a wiring Wa2extended to a predetermined position. According to various embodiments, the predetermined position may be a position connectable to a driving power source or a position where the driving device300may be mounted.

Any one LED b2of the plurality of second LEDs111bmay be connected to a wiring Wb2extended to a predetermined position. According to various embodiments, the predetermined position may be a position where the driving device300may be mounted or a position connectable to a driving power source.

Any one LED c1of the plurality of third LEDs111cmay be connected to a wiring Wc1extended to a predetermined position. According to various embodiments, the predetermined position may be a position where the driving device300may be mounted or a position connectable to a driving power source.

Any one LED d1of the plurality of fourth LEDs111dmay be connected to a wiring Wd1extended to a predetermined position. According to various embodiments, the predetermined position may be a position where the driving device300may be mounted or a position connectable to a driving power source.

Another LED d2of the plurality of fourth LEDs111dmay be connected to a wiring Wd2extended to a predetermined position. According to various embodiments, the predetermined position may be a position connectable to a driving power source or a position where the driving device300may be mounted.

A connection portion SA1may be formed between the first group and the second group. A connection portion SA2may be formed between the second group and the third group. A connection portion SA3may be formed between the third group and the fourth group. A connection portion SA may not be formed between the third group and the fourth group.

The first connection portion SA1may be formed between the any one LED a2of the plurality of first LEDs111aand any one LED b1of the plurality of second LEDs111b. According to various embodiments, the first connection portion SA1may be formed between the LED a2disposed at the lowermost and leftmost (or rightmost) among the plurality of first LEDs111aand the LED b1disposed at the rightmost (or leftmost) among the plurality of second LEDs111b.

The second connection portion SA2may be formed between the any one LED b1of the plurality of second LEDs111band any one LED c2of the plurality of third LEDs111c. According to various embodiments, the second connection portion SA2may be formed between the LED b1disposed at the rightmost (or leftmost) among the plurality of second LEDs111band the LED c2disposed at the rightmost (or leftmost) among the plurality of third LEDs111c.

The third connection portion SA3may be formed between the any one LED c2of the plurality of third LEDs111cand the any one LED d1of the plurality of fourth LEDs111d. According to various embodiments, the third connection portion SA3may be formed between the LED c2disposed at the rightmost (or leftmost) among the plurality of third LEDs111cand the LED d1disposed at the uppermost and leftmost (or rightmost) among the plurality of fourth LEDs111d.

According to various embodiments, the arrangement of the wirings (Wa, Wb, Wc, Wd) connecting the plurality of LEDs111and the arrangement of the connection portions (SA1, SA2, SA3) may be changed.

Among the plurality of first LEDs111a, any one LED a1may be connected to the wiring Wa1extended to a predetermined position, and another LED a2may be connected to the wiring Wa2extended to a predetermined position.

The wiring Wa1connected to the one LED a1of the plurality of first LEDs111amay be extended to a position connectable to the first driving power source60athat applies the first driving voltage VLED1.

The wiring Wa2connected to the other LED a2of the plurality of first LEDs111amay be extended to a predetermined position where the driving device300may be mounted.

The any one LED b2of the plurality of second LEDs111bmay be connected to the wiring Wb2extended to a predetermined position. The wiring Wb2extended to the predetermined position may be extended to a predetermined position where the driving device300may be mounted.

The any one LED c1of the plurality of third LEDs111cmay be connected to the wiring Wc1extended to a predetermined position. The wiring Wc1extended to the predetermined position may be extended to a position connectable to the second driving power source60bthat applies the second driving voltage VLED2.

Among the plurality of fourth LEDs111d, any one LED d1may be connected to the wiring Wd1extended to a predetermined position, and another LED d2may be connected to the wiring Wd2extended to a predetermined position.

The wiring Wd1connected to the one LED d1of the plurality of fourth LEDs111dmay be extended to a position connectable to the first driving power source60athat applies the first driving voltage VLED1.

The wiring Wd2connected to the other LED d2of the plurality of fourth LEDs111dmay be extended to a predetermined position where the driving device300may be mounted.

In a subsequent manufacturing process of the light source apparatus100, jumper components J may be selectively mounted on the connection portions SA1, SA2, and SA3.

FIG.24illustrates an example where the substrate for the light source apparatus shown inFIG.23is used as a second light source apparatus.

Referring toFIG.24, a process of manufacturing the second light source apparatus100may include mounting a jumper component J on each of the first connection portion SA and the third connection portion SA.

The process of manufacturing the second light source apparatus100may include mounting the plurality of driving devices300at predetermined positions to which the wirings Wb1and Wd2extend.

The substrate112may include the jumper components J mounted on the first connection portion SA and the third connection portion SA.

The substrate112may include the driving devices300connected to the wirings Wb1and Wd2.

As any one LED a2of the plurality of first LEDs111aand any one LED b1of the plurality of second LEDs111bare connected by the jumper component J, the wiring Wa2connected to the any one LED a2may be treated as a dummy wiring. Because the dummy wiring Wa2is not connected to any component, the wiring Wa2may be treated as an open circuit.

On the other hand, because a jumper component J is not mounted on the second connection portion SA2formed between the plurality of second LEDs111band the plurality of third LEDs111c, the plurality of second LEDs111band the plurality of third LEDs111cmay be electrically blocked from each other.

As the any one LED a2of the plurality of first LEDs111aand the any one LED b1of the plurality of second LEDs111bare connected by the jumper component J, the plurality of first LEDs111aand the plurality of second LEDs111bmay be connected in series. Accordingly, the plurality of first LEDs111aand the plurality of second LEDs111bmay operate as a single dimming block200.

Any one LED a1of the plurality of first LEDs111amay be connected to the first driving power source60aby the wiring Wa1formed on the substrate112, and any one LED b2of the plurality of second LEDs111bmay be connected to the driving device300by the wiring Wb2formed on the substrate112.

The first driving power source60amay apply a driving voltage VLED1to the dimming block200including the plurality of first LEDs111aand the plurality of second LEDs111b.

The driving device300may control a current flowing through the dimming block200including the plurality of first LEDs111aand the plurality of second LEDs111b.

As any one LED c2of the plurality of third LEDs111cand any one LED d1of the plurality of fourth LEDs111dare connected by a jumper component J, the wiring Wd1connected to the any one LED d1of the plurality of fourth LEDs111dmay be treated as a dummy wiring. Because the dummy wiring Wd1is not connected to any component, the wiring Wd1may be treated as an open circuit.

As the any one LED c2of the plurality of third LEDs111cand the any one LED d1of the plurality of fourth LEDs111dare connected by the jumper component J, the plurality of third LEDs111cand the plurality of fourth LEDs111dmay be connected in series. Accordingly, the plurality of third LEDs111cand the plurality of fourth LEDs111dmay operate as a single dimming block200.

Any one LED c1of the plurality of third LEDs111cmay be connected to the second driving power source60bby the wiring Wc1formed on the substrate112, and any one LED d2of the plurality of fourth LEDs111dmay be connected to the driving device300by the wiring Wd2formed on the substrate112.

The second driving power source60bmay apply a driving voltage VLED2to the dimming block200including the plurality of third LEDs111cand the plurality of fourth LEDs111d. According to various embodiments, the first driving power source60aand the second driving power source60bmay be the same power source.

The driving device300may control a current flowing through the dimming block200including the plurality of third LEDs111cand the plurality of fourth LEDs111d. According to various embodiments, the driving device300connected to the dimming block200including the plurality of first LEDs111aand the plurality of second LEDs111b, and the driving device300connected to the dimming block200including the plurality of third LEDs111cand the plurality of fourth LEDs111dmay be the same driving device300or may be different from each other.

FIG.25illustrates an example where the substrate for the light source apparatus shown inFIG.23is used as a first light source apparatus.

Referring toFIG.25, a process of manufacturing the first light source apparatus100may include mounting a jumper component J on the second connection portion SA.

The process of manufacturing the first light source apparatus100may include mounting the plurality of driving devices300at predetermined positions to which the wirings Wa2, Wb1, and Wd2extend.

The substrate112may include the jumper component J mounted on the second connection portion SA.

The substrate112may include the driving devices300connected to wirings Wa2, Wb1, and Wd2.

As any one LED b1of the plurality of second LEDs111band any one LED c2of the plurality of third LEDs111care connected by the jumper component J, the plurality of second LEDs111band the plurality of third LEDs111cmay be connected to each other in series. Accordingly, the plurality of second LEDs111band the plurality of third LEDs111cmay operate as a single dimming block200.

On the other hand, no jumper component J is mounted on the first connection portion SA1formed between the plurality of first LEDs111aand the plurality of second LEDs111b, and the third connection portion SA3formed between the plurality of third LEDs111cand the plurality of fourth LEDs111d, and thus the plurality of first LEDs111aand the plurality of second LEDs111bmay be electrically blocked from each other, and the plurality of third LEDs111cand the plurality of fourth LEDs111dmay be electrically blocked from each other.

Any one LED a1of the plurality of first LEDs111amay be connected to the first driving power source60aby the wiring Wa1formed on the substrate112, and another LED a2of the plurality of first LEDs111amay be connected to the driving device300by the wiring Wa2formed on the substrate112.

The first driving power source60amay apply a driving voltage VLED1to the dimming block200including the plurality of first LEDs111a.

The driving device300may control a current flowing through the dimming block200including the plurality of first LEDs111a.

Any one LED b2of the plurality of second LEDs111bmay be connected to the driving device300by the wiring Wb2formed on the substrate112.

Any one LED c1of the plurality of third LEDs111cmay be connected to the second driving power source60bby the wiring Wc1formed on the substrate112.

The second driving power source60bmay apply a driving voltage VLED2to the dimming block200including the plurality of second LEDs111band the plurality of third LEDs111c.

The driving device300may control a current flowing through the dimming block200including the plurality of second LEDs111band the plurality of third LEDs111c.

Any one LED d1of the plurality of fourth LEDs111dmay be connected to the first driving power source60aby the wiring Wd1formed on the substrate112, and another LED d2of the plurality of fourth LEDs111dmay be connected to the driving device300by the wiring Wd2formed on the substrate112.

The first driving power source60amay apply a driving voltage VLED1to the dimming block200including the plurality of fourth LEDs111d.

The driving device300may control a current flowing through the dimming block200including the plurality of fourth LEDs111d.

According to the disclosure, by using a single substrate112including k LEDs, the light source apparatus100including n dimming blocks200each including k/n LEDs (e.g.,6) or the light source apparatus100including m dimming blocks200each including k/m LEDs (e.g., 9) may be manufactured.

According to the disclosure, a connection portion SA may be formed between a plurality of groups, each of which includes the plurality of LEDs111connected in series, and thus various types of light source apparatuses100including the dimming block200having different numbers of LEDs may be manufactured by using one substrate112.

According to the disclosure, by forming a dummy wiring on the substrate112, various types of light source apparatuses100including the dimming block200having different numbers of LEDs may be manufactured by using one substrate112.

Embodiments of the disclosure are not limited to the above-described embodiments, and may be expanded to all embodiments for manufacturing the substrate112on which a connection portion SA is formed between a plurality of groups, each of which includes a plurality of LEDs111connected in series, and manufacturing the light source apparatus100having different numbers of dimming blocks200using the substrate112.

FIG.26illustrates a side of a substrate for a light source apparatus according to an embodiment.

Referring toFIG.26, the substrate112may include a first side on which the plurality of LEDs111are mounted, and a second side opposite to the first side.

A plurality of mounting portions (mounts) PA1and PA2to which the control assembly50and the power supply assembly60of the display apparatus10may be connected may be provided on the second side of the substrate112.

The first mounting portion PA1may be a mounting portion for the first light source apparatus.

The second mounting portion PA2may be a mounting portion for the second light source apparatus.

The first mounting portion PA1may include a first connector N1connectable to a connector of the dimming driver170. In an embodiment, in a case where the connector of the dimming driver170is a male connector, the first connector N1may be a female connector. In a case where the connector of the dimming driver170is a female connector, the first connector N1may be a male connector.

According to various embodiments, the first mounting portion PA1may further include a visual indicator K1to indicate a type of the light source apparatus100.

The second mounting portion PA2may include a second connector N2connectable to the connector of the dimming driver170. In an embodiment, in a case where the connector of the dimming driver170is a male connector, the second connector N2may be a female connector. In a case where the connector of the dimming driver170is a female connector, the second connector N2may be a male connector.

According to various embodiments, the second mounting portion PA2may further include a visual indicator K2to indicate a type of the light source apparatus100.

The first visual indicator K1and the second visual indicator K2may be implemented in various forms such as letters, shapes, and icons, and may be different from each other to be distinguished from each other.

According to the disclosure, when the substrate112is manufactured for the first light source apparatus100or for the second light source apparatus100, a manufacturer of the display apparatus10may intuitively recognize where to connect the connector of the dimming driver170.

According to various embodiments, the connector of the dimming driver170may be connected to either the first connector N1or the second connector N2.

The dimming driver170may transmit driving power and a dimming signal to the first light source apparatus100or the second light source apparatus100through the first connector N1or the second connector N2.

The display apparatus10according to an embodiment may include the plurality of mounting portions PA1and PA2, and the dimming driver170may be connected to only one of the plurality of mounting portions PA1and PA2.

According to an embodiment, the display apparatus10may include the liquid crystal panel20and the light source apparatus100.

According to an embodiment, the light source apparatus100may include the substrate112on which the plurality of LEDs111are arranged.

The plurality of LEDs111may include the plurality of first LEDs111aconnected in series to each other by the wiring Wa formed on the substrate112; and the plurality of second LEDs111bconnected in series to each other by the wiring Wb formed on the substrate.

The substrate112may include a first connection portion SA formed between a first LED a2of the plurality of first LEDs111aand a second LED b1of the plurality of second LEDs111b.

Based on the first connection portion SA being electrically connected, the plurality of first LEDs111aand the plurality of second LEDs111bmay operate as the same dimming block.

Based on the first connection portion SA being electrically blocked, the plurality of first LEDs111aand the plurality of second LEDs111bmay operate as different dimming blocks. The substrate112may further include a jumper component J mounted on the first connection portion SA.

The first connection portion SA may be electrically connected or blocked depending on whether the jumper component J is mounted.

Based on the first connection portion SA being electrically connected, the first LED a2and the second LED b1are connected, and thus the plurality of first LEDs111aand the plurality of second LEDs111bmay be connected in series.

Based on the first connection portion SA being electrically connected, the first LED a2may be connected to a dummy wiring DB formed on the substrate112and extended to a predetermined position connectable to the driving device300.

Based on the first connection portion SA being electrically connected, the second LED b1may be connected to a dummy wiring DB formed on the substrate112and extended to a predetermined position connectable to the driving power source60that applies a driving voltage.

Based on the first connection portion SA being electrically connected, a third LED a1of the plurality of first LEDs111amay be connected to the driving power source60through the wiring Wa1formed on the substrate112.

Based on the first connection portion SA being electrically connected, a fourth LED b2of the plurality of second LEDs111bmay be connected to the driving device300through the wiring Wb2formed on the substrate112.

Based on the first connection portion SA being electrically connected, the plurality of first LEDs111aand the plurality of second LEDs111bmay operate with the same driving current.

Based on the first connection portion SA being electrically blocked, the first LED a2may be connected to the first driving device300aby the wiring Wa2formed on the substrate112.

Based on the first connection portion SA being electrically blocked, the second LED b1may be connected to the first driving power source60bby the wiring Wb1formed on the substrate112.

Based on the first connection portion SA being electrically blocked, a fifth LED a1of the plurality of first LEDs111amay be connected to the second driving power source60aby the wiring Wa1formed on the substrate112, and a sixth LED b2of the plurality of second LEDs111bmay be connected to the first driving device300aby the wiring Wb2formed on the substrate112.

Based on the first connection portion SA being electrically blocked, the fifth LED a1of the plurality of first LEDs111amay be connected to the second driving power source60aby the wiring Wa1formed on the substrate112, and the sixth LED b2of the plurality of second LEDs111bmay be connected to the second driving device300bby the wiring formed on the substrate112.

Based on the first connection portion SA being electrically blocked, the plurality of first LEDs111aand the plurality of second LEDs111bmay operate with different driving currents.

The number of first LEDs111aand the number of second LEDs111bmay be the same.

The plurality of LEDs111may further include the plurality of third LEDs111cconnected in series to each other by the wiring Wc formed on the substrate112, and the substrate112may further include a second connection portion SA2formed between the second LED b1of the plurality of second LEDs111band a seventh LED c2of the plurality of third LEDs111c.

The display apparatus10may further include the dimming driver170that controls the light source apparatus100, the plurality of LEDs111may be provided on a first side of the substrate112, and a second side of the substrate112may include a first mounting portion PA1and a second mounting portion PA2at different positions. Only one of the first mounting portion PA1or the second mounting portion PA2may be connected to a connector of the dimming driver170.

According to an embodiment, a method for manufacturing the light source apparatus100may include forming a wiring w on the substrate112; forming a connection portion SA on the substrate112; and mounting a plurality of LEDs111on the substrate112.

Based on the connection portion SA being electrically connected, the substrate112may include a plurality of first dimming blocks.

Based on the connection portion SA being electrically connected, the plurality of first LEDs111aand the plurality of second LEDs111bmay operate as the same dimming block.

Based on the connection portion SA being electrically blocked, the plurality of first LEDs111aand the plurality of second LEDs111bmay operate as different dimming blocks.

The method for manufacturing the light source apparatus100may further include mounting a jumper component J on the connection portion SA.

The method for manufacturing the light source apparatus100may further include mounting the driving device300on the wiring Wb2connected to a third LED b2of the plurality of second LEDs111b.

The method for manufacturing the light source apparatus100may further include mounting the driving device300on the wiring Wa2connected to the first LED a2.

The method for manufacturing the light source apparatus100may further include mounting the driving device300on the wiring Wb2connected to the third LED b2of the plurality of second LEDs111b.

According to an aspect of the disclosure, display apparatuses with various resolutions may be manufactured using a single substrate.

According to an aspect of the disclosure, the number of substrate types for light source apparatuses may be reduced, thereby decreasing the number of production lines.

According to an aspect of the disclosure, ease of management of a substrate for a light source apparatus may be increased.

The effects that can be achieved by the disclosure are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by one of ordinary skill in the technical art to which the disclosure belongs from the following description.

Although the disclosure has been shown and described in relation to specific embodiments, it would be appreciated by those skilled in the art that changes and modifications may be made in these embodiments without departing from the principles and scope of the disclosure, the scope of which is defined in the claims and their equivalents.