Patent ID: 12204368

DETAILED DESCRIPTION THE PREFERRED EMBODIMENTS

Description will now be given in detail according to exemplary implementations disclosed herein, with reference to the accompanying drawings. For the sake of brief description with reference to the drawings, the same or equivalent components are provided with the same or similar reference numbers, and description thereof will not be repeated.

In the following description, a suffix such as “module” and “unit” may be used to refer to elements or components. Use of such a suffix herein is merely intended to facilitate description of the specification, and the suffix itself is not intended to give any special meaning or function.

In the present disclosure, that which is well known to one of ordinary skill in the relevant art has generally been omitted for the sake of brevity. The accompanying drawings are used to help easily understand the technical idea of the present disclosure and it should be understood that the idea of the present disclosure is not limited by the accompanying drawings. The idea of the present disclosure should be construed to extend to any alterations, equivalents and substitutes besides the accompanying drawings.

It will be understood that although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

It will be understood that when an element is referred to as being “connected with” another element, there may be intervening elements present. In contrast, it will be understood that when an element is referred to as being “directly connected with” another element, there are no intervening elements present.

A singular representation may include a plural representation unless context clearly indicates otherwise.

In the present application, it should be understood that the terms “comprises, includes,” “has,” etc. specify the presence of features, numbers, steps, operations, elements, components, or combinations thereof described in the specification, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof.

In the following description, even if the embodiment is described with reference to a specific figure, if necessary, reference numeral not shown in the specific figure may be referred to, and the reference numeral not shown in the specific figure may be used in a case where the above reference numeral is shown in the other figures.

Referring toFIGS.1and2, a display device1may include a head10having a display panel100. The head10may be referred to as a display or display unit.

The head10may include a first long side LS1, a second long side LS2opposite the first long side LS1, a first short side SS1adjacent to the first long side LS1and the second long side LS2, and a second short side SS2opposite the first short side SS1.

Here, an area of the first short side SS1may be referred to as a first side area. An area of the second short side SS2may be referred to as a second side area opposite the first side area. An area of the first long side LS1may be referred to as a third side area adjacent to the first side area and the second side area, and located between the first side area and the second side area. An area of the second long side LS2may be referred to as a fourth side area adjacent to the first side area and the second side area, located between the first side area and the second side area, and opposite the third side area.

For convenience of explanation, it is illustrated and described that the length of the first and second long sides LS1and LS2is greater (longer) than the length of the first and second short sides SS1and SS2, but the length of the first and second long sides LS1and LS2may be approximately equal to the length of the first and second short sides SS1and SS2.

In the following description, a first direction DR1may be a direction parallel to the first and second long sides LS1and LS2of the head10, and a second direction DR2may be a direction parallel to the first and second short sides SS1and SS2of the head10.

The first direction DR1may be parallel to a horizontal axis. The first direction DR1may be referred to as a first horizontal axis. The second direction DR2may be parallel to a vertical axis. The second direction DR2may be referred to as a vertical axis. A third direction DR3may be parallel to a horizontal axis. The third direction DR3may be referred to as a second horizontal axis.

A side or a surface on which the display panel100of the head10displays an image may be referred to as a front side or a front surface. When the display panel100displays the image, a side or a surface from which the image cannot be seen or viewed may be referred to as a rear side or a rear surface. The third direction DR3may be a back-and-forth direction (or a front-and-rear direction).

Based on a direction in which the display panel100displays an image, the first long side LS1may be referred to as an upper side or an upper surface. Similarly, the second long side LS2may be referred to as a lower side or a lower surface. Similarly, the first short side SS1may be referred to as a left side or a left surface, and the second short side SS2may be referred to as a right side or a right surface.

A lateral side(s) of the head10may mean at least one of upper, lower, right, and left sides of the head10.

The first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2may be referred to as edges of the head10. In addition, points where the first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2meet each other may be referred to as corners. For example, a point where the first long side LS1and the first short side SS1meet each other may be referred to as a first corner C1, a point where the first long side LS1and the second short side SS2meet each other may be referred to as a second corner C2, a point where the second short side SS2and the second long side LS2meet each other may be referred to as a third corner C3, and a point where the second long side LS2and the first short side SS1meet each other may be a fourth corner C4.

Here, a direction from the first short side SS1to the second short side SS2or a direction from the second short side SS2to the first short side SS1may be referred to as a left-and-right direction LR. A direction from the first long side LS1to the second long side LS2or a direction from the second long side LS2to the first long side LS1may be referred to as an up-and-down direction UD.

Referring toFIGS.2and3, the display panel100may be provided on the front side of the display device1and may display images. The display panel100may divide an image into a plurality of pixels and output an image in accordance with color, brightness, and saturation of each pixel. The display panel100may be divided into an active area in which an image is displayed and an inactive area in which no image is displayed.

For example, the display panel100may be a Liquid Crystal Display (LCD) panel. The display device1may include a backlight unit that provides light to the display panel100.

In another example, the display panel100may be an Organic Light Emitting Diode (OLED) Panel. The display panel100may emit light by itself. The display panel100may have a very thin thickness.

In another example, the display panel100be a different type of panel, such as an LED panel and a PDP panel, other than the LCD panel and the OLED panel.

An inner plate200may be disposed at the rear of the display panel100. The inner plate200may be attached to the rear surface of the display panel100. The inner plate200may be smaller in size than the display panel100. The inner plate200may be coupled to the rear surface of the display panel100by a double-sided adhesive tape or a magnet. The inner plate200may include a ferromagnetic material or a paramagnetic material.

The inner plate200may provide rigidity to the display panel100. The inner plate200may emit heat received from the display panel100. The inner plate200may have high heat conductivity. The inner plate200may include metal. For example, the inner plate200may include aluminum or an aluminum alloy.

A frame300may be disposed at the rear of the inner plate200. The frame300may include an inner space. The frame300may accommodate the inner plate200and the display panel100. The inner plate200and the display panel100may be disposed in the inner space of the frame300. When necessary, the frame300may cover at least a portion of side surfaces of the inner plate200and the display panel100.

The frame300may include fibers to reinforce rigidity. For example, the frame300may include at least one of a glass fiber, a carbon fiber, a metallic wire, and a metallic fiber. The frame300may include a microfiber.

A middle cabinet350may be disposed to surround an edge of the display panel100. The middle cabinet350may have a frame shape with a hollow center to surround an outer edge of the display panel100. The middle cabinet350may support the edge of the display panel100from below. The frame300may be seated on a rear surface of the middle cabinet350to be fixed to the middle cabinet350.

The middle cabinet350may be made of a synthetic resin, such as plastic, or a metal material, but aluminum or an aluminum alloy, or stainless steel or a galvanized steel sheet may be more suitable in consideration of specific strength and heat dissipation.

A rigid bar380may be disposed at the rear of the frame300. The rigid bar380may be in contact with a rear surface of the frame300. The rigid bar380may provide rigidity to the frame300and/or the display panel100. In other words, the rigid bar380may be branched in multiple directions to minimize bending deformation of the frame300and the like. The rigid bar380may be made of a material such as carbon fiber reinforced plastics (CFRP), but it is not limited thereto.

For example, the rigid bar380may include a first body381that extends in the left-and-right direction of the display panel100, and a second body383that extends from the first body381in a vertical direction, namely, in the up-and-down direction. The first body381and the second body383may be formed as one body. That is, the second body383may be a portion branched from the first body381. Alternatively, the first body381and the second body383may be configured as separate bodies. Adjacent second bodies383may be disposed to be spaced apart from one another by a predetermined distance or interval. As will be described later, electronic components may be respectively disposed between each two adjacent second bodies383. Both the first body381and the second body383may be provided in plurality.

A PCB plate400may be disposed at the rear of the frame300. The PCB plate400may be coupled to the rear surface of the frame300. The PCB plate400may be coupled to the frame300. The PCB plate400may be divided into a plurality of numbers to be respectively disposed between each two adjacent second bodies383.

Electronic components may be mounted on a rear surface of the PCB plate400. For example, a power distribution unit (PSU), a speaker (SPKa), a timing controller (TC) board, and a main board (MB) may be mounted on the rear surface of the PCB plate400. The rigid bar380may be disposed between the electronic components, thereby effectively reducing defects or damage of the electronic components due to deformation of the frame300caused by an external force.

The PCB plate400may be made of a different material from the frame300. For example, the PCB plate400may include metal. For example, the PCB plate400may be formed through a pressing process. The frame300and the PCB plate400may be fixed to each other by an adhesive member interposed therebetween and the like, but it is not limited thereto.

A back cover500may be disposed at the rear of the frame300. The back cover500may be disposed at the rear of the PCB plate400. The back cover500may be disposed to cover an electronic component disposed on the PCB plate400to thereby protect the electronic component. The back cover500may be fixed to the frame300by at least one fixing member. The fixing member may be a screw, but it is not limited thereto.

At least one connector900(seeFIG.9) may be installed or fixed to the periphery of the back cover500. However, a position in which the connector900(seeFIG.9) is disposed is not limited thereto. The connector900(seeFIG.9) may transmit externally provided power and/or a signal to an electronic component disposed on the PCB plate400. A pair of connectors900(seeFIG.9) may be coupled to each other to electrically connect the electronic component disposed on the PCB plate400and a component that provides power and/or a signal from the outside.

An auxiliary cover550may be disposed at the rear of the back cover500. The auxiliary cover550may be disposed to cover components disposed on a groove501to thereby protect the components. The auxiliary cover550may be fixed to the back cover500by at least one fixing member. The auxiliary cover550and the back cover500may be fixed to each other through a fastening method using a grommet, but it is not limited thereto.

FIGS.4to7are diagrams illustrating a connection relationship between a display panel and a cable, and a positional relationship between the cable and a case member according to an embodiment of the present disclosure.

Referring toFIG.4, a member layer117may extend from one side of the display panel100. For example, the member layer117may have a shape that extends from the second long side LS2of the display panel100. The member layer117may be provided in plurality. The member layer117may be electrically connected to the display panel100. The member layer117may include at least one of a Chip On Film (COF), a Chip On Glass (COG), a Flexible Printed Circuit Board (FPCB), and a Tape Carrier Package (TCP).

A source PCB172may have a shape extending from the member layer117. The source PCB172may be electrically connected to the member layer117. The source PCB172may be provided in plurality.

A cable190may have a shape extending from the source PCB172. The cable190may be electrically connected to the source PCB172. The cable190may be provided in plurality.

Power and/or a signal provided to the cable190may be transmitted to the source PCB172. Power and/or a signal transmitted to the source PCB172may be distributed to the member layer117. Power and/or a signal distributed to the member layer117may be supplied to the display panel100.

Referring toFIG.5, the member layer117may be flexible. The member layer117may be bent toward the rear surface of the display panel100. The source PCB172that is connected to the member layer117may be disposed at the rear of the display panel100. The cable190that is connected to the source PCB172may be disposed at the rear of the display panel100.

Referring toFIGS.6and7, the cable190may extend toward the rear of the frame300. The cable190may extend by passing through a lower portion of the inner plate200and penetrating through a slot310formed in the frame300. One end of the cable190may pass through the slot310to be electrically connected to an electronic component located at the rear of the frame300.

The inner plate200may have a smaller area than the display panel100. As the cable190extends through a space at the lower portion of the inner plate200, separate processing of the inner plate200may not be required.

FIGS.8and9are diagrams illustrating a detailed configuration of a display device according to an embodiment of the present disclosure.

Referring toFIGS.8and9, the display device1may include the head10and a stand600disposed below the head10. The stand600may support the display panel100coupled to case members, such as the inner plate200, the frame300, the middle cabinet350, the back cover500, and the auxiliary cover550, at the bottom.

The stand600may include a top plate610, a bottom plate630, a first side plate6500, and a second side plate670. Due to a coupling structure of the bottom plate630, the first side plate6500, and the second side plate670, the stand600may have a case shape that is open toward the front and the rear.

The top plate610may determine a shape of an upper surface of the stand600. The top plate610may be provided with support members for supporting the head10.

For example, the support members may include a supporter guide6111. The supporter guide6111may have a shape protruding upward from the top plate610, and may be fixed to a supporter guide hole (not shown) of the frame300. The supporter guide6111may be provided in plurality. The supporter guides611may be disposed adjacent to each other in a longitudinal or lengthwise direction of the head10, namely, in the left-and-right direction. As the plurality of supporter guides611are provided, the head10can be supported at a plurality of points, allowing shaking and twisting of the head10to be effectively restrained and limited.

In another example, the support members may include a supporter guide hole (not shown). The supporter guide6111may have a shape protruding downward from the frame300, and may be fixed to the supporter guide hole of the stand600. The supporter guide hole may be provided in plurality. The supporter guide holes may be disposed adjacent to each other in the lengthwise direction of the head10, namely, in the left-and-right direction. As the plurality of supporter guide holes are provided, the head10can be supported at a plurality of points, allowing shaking and twisting of the head10to be effectively restrained and limited.

The stand600may include a bottom accommodating part700. The bottom accommodating part700may be disposed below the bottom plate630. The bottom accommodating part700may provide an accommodation space open toward the rear.

A box800having a storage space may be inserted into the accommodation space of the bottom accommodating part700. The box800may be provided to be drawn in and out from the accommodation space of the bottom accommodating part700along the front and the rear.

The storage space of the box800may accommodate components. The components may include an electronic component disposed at the rear surface of the PCB plate400and an electronic component for applying power and/or a signal. For example, the components may include a power supply such as a battery for supplying power to a power distribution unit (PSU) disposed at the rear surface of the PCB plate400. As will be described later, an electronic component disposed in the box800and an electronic component disposed at the rear surface of the PCB plate400may be electrically connected to each other through one or more connectors900. In addition, the components may include a heat dissipation component for dissipating heat generated in the environment of the box800to the outside. The box800may be slidably inserted into the accommodation space of the bottom accommodating part700.

A connector900may include a first connector910and a second connector950. A plurality of the first connectors910and a plurality of the second connectors950may be provided in a number corresponding to each other.

For example, any one of the first connector910and the second connector950may be fixed to the back cover500or the periphery of the back cover500. The other one of the first connector910and the second connector950may be fixed to an upper portion of the stand600.

In another example, any one of the first connector910and the second connector950may be fixed to a distal end of the supporter guide6111. The other one of the first connector910and the second connector950may be aligned with the supporter guide hole into which the supporter guide6111is inserted, and may be fixed to the head10or the stand600.

Hereinafter, an example in which the first connector910is fixed to the back cover500or the periphery of the back cover500, and the second connector950is fixed to the upper portion of the stand600will be described, but the present disclosure is not limited thereto. In other words, the second connector950may be fixed to the back cover500or the periphery of the back cover500, and the first connector910may be fixed to the upper portion of the stand600. Alternatively, the first connector910and the second connector950may be aligned with the supporter guide6111and the supporter guide hole.

The first connector910may be fixed to the back cover500or the periphery of the back cover500. A position to which the first connector910is fixed is not limited to the back cover500or the periphery of the back cover500, and the first connector910may be fixed to a position adjacent to the head10and to which a relative position to the head10is fixed. The first connector910may be disposed downward.

The second connector950may be fixed to the upper portion of the stand600. The second connector950may be fixed to the top plate610. A position to which the second connector950is fixed is not limited to the upper portion of the stand600. A relative position of the second connector950may be fixed with respect to the stand600.

When the stand600is coupled to the frame300or supports the frame300, the first connector910and the second connector950may be coupled to each other and electrically connected to each other. When the first connector910and the second connector950are coupled to each other, an electronic component disposed on the PCB plate400and an electronic component disposed in the box800may be electrically connected to each other.

Referring toFIGS.10to12, the first connector910may include at least one first pin920. The first pin920may extend long to one side. A direction in which the first pin920extends may coincide with an insertion direction in which the first pin920is inserted into a first space964. The first pin920may include a pin body921that extends long. The pin body921may have a cylindrical shape. The first pin920may include a pin tip922that protrudes from the pin body921. The pin tip922may gradually decrease in a protruding direction. The pin tip922may be pointed or convex in the protruding direction.

The first connector910may include a first pin housing930. The first pin housing930may include a second space934with one side open. A side wall931of the first pin housing930may surround the circumference of a side portion of the second space934. The side wall931of the first pin housing930may extend in a circumferential direction along the circumference of the second space934. The side wall931of the first pin housing930may have a cylindrical shape. The first pin housing930may block the bottom of the second space934. The side wall931of the first pin housing930may be referred to as a first side wall931.

An upper end932of the first side wall931may include a first housing guide surface933with a convex shape. The first housing guide surface933may be convex toward a second space934. The first housing guide surface933may extend along an edge of the first side wall931.

The first pin housing930may accommodate the first pin920. At least one first pin920may be disposed or fixed inside the second space934. The first pin920may extend toward an opening of the second space934. The first pin housing930and the first pin920may extend in parallel with each other.

A first protruding portion937may convexly protrude inward from an inner circumferential surface of the first side wall931toward the second space934. The first protruding portion937may extend in the direction in which the first pin920extends or in the insertion direction of the first pin920. The first protruding portion937may have a substantially semicircular shape.

A first recessed portion936may be concavely recessed inward from an outer circumferential surface of the first side wall931. The first recessed portion936may extend in the direction in which the first pin920extends or in the insertion direction of the first pin920. The first recessed portion936may have a substantially semicircular shape. The first recessed portion936may be disposed adjacent to the first protruding portion937or disposed side by side with the first protruding portion937in a corresponding position.

The second connector950may include at least one second pin960. The second pin960may provide the first space964that is open to one side. The second pin960may extend long to one side. The first space964may extend from an inside of the second pin960to one side. The first pin920may be inserted into the first space964to be in contact with the second pin960. The first space964may have a shape corresponding to the first pin920.

A pin side portion961of the second pin960may surround the circumference a side portion of the first space964. The pin side portion961of the second pin960may extend in the circumferential direction along the circumference of the first space964. A pin cover973may cover an upper end of the pin side portion961of the second pin960.

The second connector950may include a second pin housing970. The second pin housing970may include a side wall971and a cover972. The second pin housing970may accommodate at least one second pin960. The second pin housing970may include an accommodation space in which the second pin960is accommodated. The second pin housing970may include an insertion hole974. The insertion hole974may be formed by opening the cover972of the second pin housing970. The insertion hole974may communicate with the accommodation space of the second pin housing970. The insertion hole974may communicate with an opening of the first space964. The insertion hole974may be provided in a number corresponding to the second pin960. The side wall971of the second pin housing970may be referred to as a second side wall971.

The second pin housing970may have a surface (976). The second side wall971and the cover972may be connected to each other by a second housing guide surface976with a curved shape. The second housing guide surface976may be convex outward of the second pin housing970. The second housing guide surface976may extend along an edge of the second pin housing970.

The second pin housing970may include a second recessed portion977. The second recessed portion977may be formed such that an outer circumferential surface of the second side wall971is recessed inward. The second recessed portion977may extend toward the cover972of the second pin housing970, and may be open in an extended direction. The second recessed portion977may extend in the insertion direction of the first pin920. The cover972may not cover the second recessed portion977. The second recessed portion977may be recessed in a shape corresponding to a shape of the first protruding portion937.

The second connector950may include a third pin housing980. The third pin housing980may surround one side of the second pin housing970. The third pin housing980may include a side wall981and a bottom985. The side wall981of the third pin housing980may be outwardly spaced apart from the side wall971of the second pin housing970. The side wall981of the third pin housing980may extend along the circumference of the side wall971of the second pin housing970. A third space984may be formed between the side wall981of the third pin housing980and the side wall971of the second pin housing970. The side wall981of the third pin housing980may be lower in height than the side wall971of the second pin housing970. One side of the third space984may be open, and another side of the third space984may block the bottom985of the third pin housing980. The side wall981of the third pin housing980may be referred to as a third side wall981.

An upper end of the third side wall981may have a third housing guide surface983with a convex shape. The third housing guide surface983may be convex toward the third space984. The third housing guide surface983may extend along an edge of the third side wall981.

A second protruding portion986may protrude inward from an inner circumferential surface of the third side wall981toward the third space984. The second protruding portion986may be disposed adjacent to the second recessed portion977or disposed in parallel with the second recessed portion977in a position corresponding to the second recessed portion977. The second protruding portion986may protrude in a shape corresponding to a shape of the first recessed portion936. The second protruding portion986may extend in the insertion direction of the first pin920.

The first connector910and the second connector950may be coupled to each other. The first pin920of the first connector910may penetrate through the insertion hole974and then be inserted into the first space964of the second pin960, allowing the first pin920to be in contact with the second pin960. As the first pin920and the second pin960are in contact with each other, the first pin920and the second pin960may be electrically connected to each other.

The second pin housing970may be inserted into the second space934of the first pin housing930. When the second pin housing970is inserted into the second space934, the outer circumferential surface of the second side wall971may slide on the inner circumferential surface of the first side wall931. As the first housing guide surface933is brought into contact with the second side wall971or the second housing guide surface976, the second pin housing970may be guided to be inserted into the second space934. As the second housing guide surface976is brought into contact with the first side wall931or the first housing guide surface933, the second pin housing970may be guided to be inserted into the second space934. The first side wall931may be inserted into the third space984between the second side wall971and the third side wall981. As the third housing guide surface983is brought into contact with the first side wall931, allowing the first side wall931to be guided to the third space984.

When the first connector910and the second connector950are coupled to each other, the second protruding portion986may be inserted into the first recessed portion936. The second protruding portion986may be slide onto the first recessed portion936in the insertion direction. The first protruding portion937may be inserted into the second recessed portion977. The first protruding portion937may be slide onto the second recessed portion977in the insertion direction.

Accordingly, the coupling of the first connector910and the second connector950can be achieved in an easier manner, and damage of the structure during the coupling can be minimized or reduced.

Referring toFIG.13, the second pin960may be open to one side, and the first space964into which the first pin920(seeFIG.12) is inserted may be formed. The second pin housing970may accommodate the second pin960and include the insertion hole974in communication with the opening of the first space964. The pin cover973may cover at least a portion of the second pin960in the periphery of the insertion hole974. The pin cover973may surround a side portion of the insertion hole974. The insertion hole974may communicate with the first space964in the insertion direction of the first pin920(seeFIG.12).

The second pin920may include the pin side portion961surrounding the first space964. The upper end of the pin side portion961may be open toward the insertion hole974. The pin side portion961may have a cylindrical shape in which the first space964is formed and that is open upward. The first space964may have a shape corresponding to an outer circumferential surface of the pin body921of the first pin920. The pin side portion961may extend in the circumferential direction. A portion of the pin side portion961may be cut in the insertion direction of the first pin920(seeFIG.12) to be configured as a C-type pin having a shape of a cut space965.

Accordingly, when the first pin920(seeFIG.12) is inserted into the first space964, the first pin920may be brought into contact with an inner circumferential surface of the pin side portion961and then be inserted into the first space964while spreading the pin side portion961radially outward, allowing the first pin920to be in contact with the second pin960(seeFIG.19).

The second side wall971may surround the pin side portion961in a circumference direction. The pin cover973may protrude inward from an inner circumferential surface of an upper end of the second side wall971toward the insertion hole974. The pin cover973may protrude radially inward from the inner circumferential surface of the upper end of the second side wall971along the circumferential direction. The pin cover973may extend in the circumferential direction along the inner circumferential surface of the upper end of the second side wall971. A width D1of an inner circumferential surface of the pin cover973may be less than a width D2of an inner circumferential surface of the second side wall971.

The pin cover973may cover at least a portion of the upper end of the pin side portion961. The pin cover973may be disposed above the pin side portion961. The pin cover973may at least partially overlap the pin side portion961in the insertion direction of the first pin920. The pin cover973may cover the upper end of the pin side portion961but may not cover the first space964.

In a state before the first pin920is inserted into the first space964, the inner circumferential surface of the pin side portion961may overlap an outer circumferential surface of the insertion hole974, or may be disposed more inward than the outer circumferential surface of the insertion hole974. A width D31of the first space964or a width D31of the inner circumferential surface of the pin side portion961may be equal to or less than a minimum width D1of the insertion hole974. A width D32of an outer circumferential surface of the pin side portion961may be greater than the minimum width D1of the insertion hole974. The width D32of the outer circumferential surface of the pin side portion961may be less than the width D2of the inner circumferential surface of the second side wall971. The first pin920(seeFIG.12) may pass through the insertion hole surrounded by the pin cover973to be in contact with the second pin960.

Accordingly, when the first pin920(seeFIG.12) is inserted into the first space964, the first pin920(seeFIG.12) is caught by the upper end of the pin side portion961to thereby minimize damage of the first pin920or the second pin960(seeFIG.19). Further, as the first pin920is inserted without being caught by the pin side portion961, the first connector910and the second connector950can be coupled to each other in an easier manner (seeFIG.19).

The pin cover973may have a pin guide surface975. The pin guide surface975may surround the insertion hole974. The pin guide surface975may be formed on the inner circumferential surface of the pin cover973. The pin guide surface975may be formed such that a width of the insertion hole974gradually decreases toward the insertion direction of the first pin920(seeFIG.12). The pin guide surface975may be convex toward the insertion hole974.

Accordingly, when the first pin920(seeFIG.12) passes through the insertion hole974, the pin guide surface975is brought into contact with the first pin920to thereby guide the first pin920to the first space964(seeFIG.19). Further, the first connector910and the second connector950can be coupled to each other in an easier manner.

Referring toFIG.14, an upper end of the pin side portion961may include an inclined surface963formed in an inclined manner. The inclined surface963may be inclined such that a width of the first space964gradually decreases along the insertion direction of the first pin920(seeFIG.12). The inclined surface963may extend from the upper end of the pin side portion961toward the inner circumferential surface of the pin side portion961in an inclined manner. An upper end of the inclined surface963may be connected to the upper end of the pin side portion961, and a lower end of the inclined surface963may be connected to the inner circumferential surface of the pin side portion961. The inclined surface963may extend in the circumferential direction along the pin side portion961.

The inclined surface963may include a portion that overlaps the insertion hole974in the insertion direction of the first pin920(seeFIG.12). A width D41of the lower end of the inclined surface963may coincide with the width D31of the inner circumferential surface of the pin side portion961. The width D41of the lower end of the inclined surface963may be less than the width D1of the insertion hole974. A width D42of the upper end of the inclined surface963may be greater than the width D1of the insertion hole974.

Referring toFIGS.15to19, the first pin housing930may include the second space934. The first pin920may be disposed in the second space934. The second space934may be open to one side. The first pin housing930may surround the remaining portion except the one open side of the second space934.

The first pin housing970may be inserted into the second space934. When the second pin housing970is inserted into the second space934, the outer circumferential surface of the second side wall971may slide on the inner circumferential surface of the first side wall931. As the first housing guide surface933is brought into contact with the second side wall971or the second housing guide surface976, the second pin housing970may be guided to be inserted into the second space934. As the second housing guide surface976is brought into contact with the first side wall931or the first housing guide surface933, the second pin housing970may be guided to be inserted into the second space934. The first side wall931may be inserted into the third space984between the second side wall971and the third side wall981. As the third housing guide surface983is brought into contact with the first side wall931, allowing the first side wall931to be guided to the third space984.

An inner circumferential surface of the first pin housing930may be inclined such that the opening of the second space934gradually decreases in an insertion direction of the second pin housing970. The inner circumferential surface of the first side wall931surrounding the side portion of the second space934may gradually decreases in the insertion direction of the second pin housing970. The inner circumferential surface of the first side wall931may have a tapered shape. The insertion direction of the second pin housing970may be the same as the insertion direction of the first pin920. An upper width w11of the inner circumferential surface of the first side wall931may be greater than a lower width w12of the inner circumferential surface of the first side wall931.

An outer circumferential surface of the second pin housing970may be inclined to gradually increase in the insertion direction of the second pin housing970. The outer circumferential surface of the second side wall971may gradually increase in the insertion direction of the second pin housing970. The outer circumferential surface of the second side wall971may have a tapered shape. The outer circumferential surface of the second side wall971may have a shape corresponding to the inner circumferential surface of the first side wall931. An upper width w21of the outer circumferential surface of the second side wall971may be less than a lower width w22of the outer circumferential surface of the second side wall971.

Accordingly, when the second pin housing970is inserted into the second space934of the first pin housing930, the first side wall931and the second side wall971may stably slide to each other, allowing the position to be guided.

In a state that an upper end portion of the second pin housing970is inserted into the second space934, the first pin920and the second pin960may be disposed to be aligned with each other. When the upper end portion of the second pin housing970is inserted into the second space934, the inner circumferential surface of the first pin housing930and the outer circumferential surface of the second pin housing970may be brought into contact with each other, allowing the first pin920and the second pin960to be aligned with each other.

In a state that the first pin920and the second pin960are not arranged in line, the first pin920and the second pin960may be separated from each other by the inner circumferential surface of the first pin housing930and the outer circumferential surface of the second pin housing970, allowing a specific separation distance to be secured. An end of the first pin housing930may protrude more than the first pin920. An end of the second pin housing970may protrude more than the second pin960. For example, an end of the first pin920and the end of the first pin housing930may be spaced apart from each other by a predetermined distance A in the insertion direction of the first pin920.

Accordingly, although the first pin housing930and the second pin housing970are brought into contact with each other in an inclined manner in the insertion direction of the second pin housing970, the first pin housing930and the second pin housing970may be disposed to be aligned with each other when the upper end portion of the second pin housing970is inserted into the second space934. As the upper end portion of the second pin housing970is inserted into the second space934, even when the first pin920and the second pin960approach each other in a direction inclined with respect to the insertion direction of the first pin920, the first pin920and the second pin960may be disposed to be aligned with each other before the first pin920is inserted into the first space964of the second pin960.

Thus, breakage of the first pin920and the second pin960, caused by colliding with each other, can be minimized when the first pin920is inserted into the first space964.

Referring toFIGS.20and21, the display device1may include a base20, a pole30, and a motion module MM.

The base20may have a flat cylinder shape. The base20may be placed on the ground.

The pole30may extend long in the vertical direction. A lower end of the pole30may be coupled onto the base20. The pole30may be adjacent to the circumference of an upper surface of the base20. A handle39may be coupled to an upper end of the pole30.

The motion module MM may extend in a direction intersecting the pole30. One side of the motion module MM may be coupled to a rear side of the head10. Another side of the motion module MM may be adjacent to the upper end of the pole30or coupled to the pole30. An articulated connector40may be coupled to the rear side of the head10, an elevating module60may be coupled to the pole30, and an arm50may connect the articulated connector40and the elevating module60.

Accordingly, the head10may be supported by the motion module MM, the pole30, and the base20, and may be spaced upward from the ground.

Meanwhile, the motion module MM, the pole30, and the base20may be collectively referred to as a stand. Alternatively, the pole30and the base20may be collectively referred to as a stand. The pole30may be fixed to the head10by a motion module MM and may be coupled to or separated from the base20.

Referring toFIG.22, a lower body20aof the base20may define a lower surface of the base20, and may have a round tray shape that is open upward.

A flat weight81may be disposed on the lower body20a, and may be coupled to the lower body20a. For example, the flat weight81may be formed by die casting including a material such as aluminum (Al). A recessed part22may be formed by being pressed upward from a lower surface of the lower body20a. For example, a plurality of recessed portions221,222,223,224, and225may be disposed along the circumference of the lower body20a.

A seating portion24may be formed by being pressed upward from the lower surface of the lower body20a, and may penetrate through the flat weight81. A battery Bt (seeFIG.20) may be accommodated in the seating portion24. A substrate BC may be mounted on the flat weight81.

The first connector910may be disposed on the flat weight81. A coupling portion81P may protrude upward from an upper surface of the flat weight81, and may be disposed in the periphery of the first connector910. The first connector910may be referred to as a bottom docking connector. In some embodiments, instead of the first connector910, the second connector950may be disposed on the flat weight81.

Referring toFIG.23, a weight82may be disposed on the flat weight81or coupled to the flat weight81. For example, the weight82may be a casting including a material such as iron (Fe). For instance, a plurality of weights821,822,823, and824may be disposed along the circumference of the lower body20a. The plurality of weights821,822,823, and824may cover the plurality of recessed portions221,222,223,224, and225.

The first pin housing930of the first connector910may be formed through the first weight821. A fastening member such as a screw910F (seeFIG.29) may penetrate through the first weight821in the periphery of the first pin housing930, and may be coupled to a coupling hole940h(seeFIG.28) of the first connector910. Accordingly, the first connector910may be coupled to the first weight821between the flat weight81and the first weight821.

A ridge82amay be formed at a central portion of the first weight821and have a monticule shape. The ridge82amay be formed in the periphery of the first pin housing930of the first connector910. The ridge82amay correspond to a shape of a port21(seeFIG.24) of an upper body20b, and may support the port21.

One end of a first cable C10may be electrically connected to one side910e(seeFIG.22) of the first connector910, and another end of the first cable C10may be electrically connected to a first terminal T11of the substrate BC. A portion of the first cable C10may be disposed between the flat weight81and the first weight821.

One end of a second cable C11may be electrically connected to a second terminal T12of the substrate BC, and another end of the second cable C11may be electrically connected to the battery Bt (seeFIG.1) accommodated in the seating portion24. A portion of the second cable C11may penetrate through a side wall of the seating portion24.

One end of a third cable C12may be electrically connected to a third terminal T13of the substrate BC, and another end of the third cable C12may be electrically connected to an indicator ID mounted on the first weight821. The indicator ID may detect the remaining amount of the battery Bt (seeFIG.1). A light-emitting diode IDL (seeFIG.24) of the indicator ID may be provided at the upper body20bto display the remaining amount of the battery Bt to a user.

A power cable may be electrically connected to a jack910iprovided at another side of the first connector910. The jack910imay be referred to as a port or a connector.

For example, the power cable may be connected to the jack910i. External power may be supplied to the battery Bt (seeFIG.1) through the power cable, the first connector910, the first cable C10, the first terminal T11, the substrate BC, the second terminal T12, and the second cable C11, allowing the battery Bt to be charged. That is, the battery Bt may be a rechargeable battery. The first and second cables C10and C11may be referred to as stand-side cables C10and C11.

For example, the power cable may be separated from the jack910i. Power of the battery Bt may be supplied to the head10through the second cable C11, the second terminal T12, the substrate BC, the first terminal T11, the first cable C10, the first connector910, the second connector950, and a cable C. The cable C may be referred to as a head-side cable C.

Referring toFIGS.21and24, the upper body20bof the base20may define the upper surface of the base20, and may have a round tray shape that is open downward. The upper body20bmay be detachably coupled to the lower body20a.

The port21may be provided at an upper surface of the upper body20b, and may be adjacent to the periphery of the upper body20b. The port21may have a hole aligned with the first connector910. The port21may have a monticule shape. An insertion portion31of the pole30may be inserted into the hole of the port21.

Referring toFIGS.24to26, a portion of a stem63smay be disposed in the insertion portion31of the pole30. The insertion portion31, which is a portion of the pole30, may define the lower end of the pole30. A fastening member Fz, such as a screw, may penetrate through the insertion portion31to be coupled to the stem63s. Accordingly, the stem63smay be coupled to the insertion portion31.

The second connector950may be disposed in the insertion portion31. A second bracket990of the second connector950may be inserted between ribs30a,30b,30c, and30dof the pole30, and may be coupled to a lower side of the stem63sthrough a fastening member990F such as a screw. The second connector950may be referred to as a top docking connector.

The first connector910may be disposed in the base20, and may face the second connector950through the port21of the base20. In the vertical direction, the first connector910may be aligned with the second connector950.

In some embodiments, the first connector910may be disposed in the insertion portion31, and the second connector950may be disposed in the base20.

A first guide rib21rmay be formed inside the port21. A second guide rib82rmay be formed on a side wall of the ridge82asurrounding the first connector910. For example, the second guide rib82rmay be defined by grooves formed by cutting out a portion of the side wall of the ridge82a. In the vertical direction, the second guide rib82rmay be aligned with the first guide rib21r.

An outer diameter of the insertion portion31may be less than an outer diameter of the pole30(see tz ofFIG.30) and be substantially equal to an inner diameter of the port21. A guide slit31smay be formed on a side surface of the insertion portion31. When the insertion portion31is inserted into the port21, the first guide rib21rand the second guide rib82rmay be inserted into the guide slit31s. The insertion portion31that is inserted into the port21may be surrounded by the ridge82a, and may be seated or placed on a seating surface82b(seeFIG.29) of the first weight821.

Fastening members F, such as screws, may penetrate through bottom holes20hformed on the lower surface of the base20and holes82bh(seeFIG.29) formed on the seating surface82b, respectively, and may be fastened to holes of the ribs30a,30b,30c, and30dof the insertion portion31, respectively. Accordingly, the insertion portion31may be inserted into and coupled to the port21.

Referring toFIGS.27to29, the second connector950may include at least one second pin960, the second pin housing970, the third pin housing980, etc., as described with reference toFIG.10and the like.

The second pin housing970may accommodate at least one second pin960. The first space964and the insertion hole974may correspond to the second pin960. The first space964may be referred to as an insertion space, and the first space964and the insertion hole974may be collectively referred to as a pin hole. For example, the number of second pins960may be 5 or any number. The second recessed portion977may be formed on the outer circumferential surface of the second pin housing970, and may extend in a lengthwise direction of the second pin960(i.e., the vertical direction). The second pin960may have a hollow cylinder shape. The second pin960may be referred to as a female pin, a female terminal, or a female connector.

The third pin housing980may surround an upper portion of the second pin housing970. The third space984may be formed between the second pin housing970and the third pin housing980. The second protruding portion986may protrude from an inside of the third pin housing980toward the third space984, and may face the second recessed portion977.

The second bracket990may extend from an outside of the third pin housing980in a horizontal direction. The second bracket990may have a hole990hthrough which the fastening member990F (seeFIG.26) passes.

A cable connector951may be disposed opposite the second pin housing970with respect to the second bracket990, and may be connected to a cable C. The cable C may be electrically connected to the second pin960.

As described above with reference toFIG.11, the first connector910may include at least one first pin920, the first pin housing930, etc.

The at least one first pin920may extend in the lengthwise direction of the second pin960(i.e., the vertical direction). The first pin920may include the pin body921and the pin tip922. For example, the number of the first pins920may be five or any number. The first pin920may be referred to as a male pin, a male terminal, or a male connector.

The first pin housing930may accommodate at least one first pin920(refer to the second space934). An inner diameter of the first pin housing930may be equal to or greater than an outer diameter of the second pin housing970. The first protruding portion937may convexly protrude from the inner circumferential surface of the first pin housing930toward the second space934, and may extend in a lengthwise direction of the first pin920. The first recessed portion936may be concavely recessed from the outer circumferential surface of the first pin housing930toward an inside of the first pin housing930, and may be disposed opposite the first protruding portion937.

The first bracket940may extend from a lower surface of the first pin housing930in the horizontal direction, and may be disposed below a portion defining the seating surface82bof the first weight821. The first bracket940may include the hole940hthrough which the fastening member910F passes. The first cable C10may be connected to one side of the first bracket940, and the jack910imay be provided at another side of the first bracket940.

When the insertion portion31of the pole30is inserted into the port21, the first pin920may be inserted into the first space964to be in contact with the second pin920, the first protruding portion937may be inserted into the second recessed portion977, and the second protruding portion986may be inserted into the first recessed portion936. Accordingly, the second connector950may be coupled to the first connector910, and the cable C and the first cable C10may be electrically connected to each other through the second pin960and the first pin920.

Referring toFIG.30, an electronic component may be mounted on the rear surface of the frame300, and may include a plurality of boards PSU, MB, and TC, and a speaker SPKa and a speaker SPKb.

The power supply board PSU may be located closer to the first short side SS1than the second short side SS2, and may be coupled to the rear surface of the frame300. The power supply board PSU may provide power to each component of the display device.

The main board MB may be located closer to the second short side SS2than the first short side SS1, and may be coupled to the rear surface of the frame300. The main board MB may control the display device.

The timing controller board TC may be located below the power supply board PSU and the main board MB, and may be coupled to the rear surface of the frame300. The timing controller board TC may be electrically connected to the display panel100(seeFIG.20) through a cable (not shown), and may provide an image signal to the display panel100.

The speakers SPKa and SPKb may be disposed above the plurality of boards PSU, MB, and TC, and may be coupled to the rear surface of the frame300. For example, the left speaker SPKa may be located closer to the first short side SS1than the second short side SS2, and may provide sound laterally. For example, the right speaker SPKb may be located closer to the second short side SS2than the first short side SS1, and may provide sound laterally.

A locking unit18may be coupled to the rear surface of the frame300. The locking unit18may be located below a central portion of the frame300.

Referring toFIGS.30and31, the back cover500may cover the rear of the frame300, and may be coupled to the frame300. Positions of speaker holes15aand15bformed at the back cover500may correspond to positions of the speakers SPKa and SPKb mounted on the frame300.

A fixing portion13H may protrude rearward from the rear surface of the frame300. The fixing portion13H may be a palm nut.

A fixing plate41may have a circular plate shape inserted into a hole of the back cover500. A fixing hole41H may be formed in the fixing plate41, and may be aligned with the fixing portion13H. A fastening member (not shown) such as a screw may be fastened to the fixing portion13H through the fixing hole41H. Accordingly, the fixing plate41may be coupled to the frame300.

Referring toFIGS.31and32, a front bracket42of the articulated connector40may be disposed at the rear of the fixing plate41, and may have a plate shape. A pair of top protrusions42a1and42a2may protrude upward from the upper side of the front bracket42, and may be spaced apart from each other in the left-and-right direction. A pair of bottom protrusions42b1and42b2may protrude downward from a lower side of the front bracket42, and may be spaced apart from each other in the left-and-right direction. The pair of bottom protrusions42b1and42b2may be respectively locked or engaged to a pair of locking portions1831aand1831bof the locking unit18that penetrates through the fixing plate41, and the pair of top protrusions42a1and42a2may be respectively inserted into and coupled to a pair of holes formed at an upper portion of the fixing plate41. Accordingly, the front bracket42may be detachably coupled to the fixing plate41.

A pivot shaft44may extend in the back-and-forth direction. A diameter of a head44aof the pivot shaft44may be greater than a diameter of a body44bof the pivot shaft44. A pair of cut-outs44cmay be formed in a side surface of the body44b, and may be disposed opposite each other. A hole42hof the front bracket42may be formed at a central portion of the front bracket42, and may be penetrated by the body44b. A shape of the hole42hof the front bracket42may be the same as a shape of a longitudinal cross-section of the body44b. Accordingly, the pivot shaft44and the front bracket42may rotate together with respect to an axial direction of the pivot shaft44. In other words, the pivot shaft44may provide a pivot axis.

A front grab45amay be disposed between the head44aand a front surface of the front bracket42. A hole45ahof the front grab45amay be aligned with the hole42hof the front bracket42, and may have the same shape as the hole42h. The body44bmay penetrate through the holes45ahand42h. The front grab45amay be fixed to the front bracket42. In other words, the front grab45amay rotate together with the pivot shaft44and the front bracket42.

Referring toFIGS.33and34, a rear bracket43may be disposed at the rear of the front bracket42. The rear bracket43may include a mount43F, a left wing43L, and a right wing43R.

The mount43F may face the front bracket42, and may include a mount hole43Fh with a circular shape. At least one washer43Fw may be disposed between the front bracket42and the mount43F, and may have a circular hole. The body44bof the pivot shaft44may penetrate through a hole of the washer43Fw and the mount hole43Fh, and may rotate independently of the washer43Fw and the mount43F.

The left wing43L may extend rearward from the left side of the mount43F. The right wing43R may extend rearward from the right side of the mount43F. A plurality of members (45c:45c1,45c2,45c3,45c4, and45c5) described hereinafter may be coupled to the mount43F at between the left wing43L and the right wing43R.

A rear grab45c1may be disposed opposite the washer43Fw with respect to the mount43F, and may have a circular hole45chthrough which the body44bof the pivot shaft44passes. The rear grab45c1may be fixed to a rear surface of the mount43F.

In addition, a plurality of fixing holes45caand a plurality of slots45cbmay be formed in the rear grab45c1to be spaced apart from each other in a circumferential direction of the rear grab45c1. The plurality of fixing holes45caand the plurality of slots45cbmay be alternately disposed in the circumferential direction of the rear grab45c1. For example, the fixing holes45caor the slots45cbmay be spaced apart from one another at intervals of 90 degrees. In the circumferential direction of the rear grab45c1, a length of the slot45cbmay be greater than a length of the fixing hole45ca.

A disc45c2may be disposed at the rear of the rear grab45c1, and may have a hole45c2hthrough which the body44bpasses and having a shape the same as a shape of the longitudinal cross-section of the body44b. A plurality of bosses45ccmay protrude from a front surface of the disc45c2toward the rear grab45c1, and may be spaced apart from each other in a circumferential direction of the disc45c2. For example, the bosses45ccmay be spaced apart from one another at intervals of 90 degrees. A size of the boss45ccmay be the same as or correspond to a size of the fixing hole45ca. That is, when the boss45ccis inserted into the fixing hole45ca, rotation of the disc45c2and the pivot shaft44may be limited to a specific level by the rear grab45c1. Further, when the boss45ccis inserted into the slot45cb, the disc45c2and the pivot shaft44may rotate within the trajectory of the slot45cb.

A washer45c3may be disposed at the rear of the disc45c2, and may have a circular hole (no reference numeral) through which the body44bof the pivot shaft44passes.

A disc spring45c4may be disposed opposite the disc45c2with respect to the washer45c3, and may have a circular hole (no reference numeral) through which the body44bof the pivot shaft44passes. The disc spring45c4may have elasticity and be convex forward or rearward. The disc spring45c4may generate an elastic force in the axial direction of the pivot shaft44.

A cap45c5may be disposed at the rear of the disc spring45c4, and may have a hole45c5hthrough which the body44bof the pivot shaft44passes. A shape of the hole45c5hmay be the same as the shape of the longitudinal cross-section of the body44b. The cap45c5may be fixed to a distal end of the body44b.

Accordingly, the pivot shaft44may rotate together with the front bracket42, the front grab45a, the disc45c2, and the cap45c5. In addition, the pivot shaft may rotate independently of the washer43Fw, the rear bracket43, the rear grab45c1, the washer45c3, and the disc spring45c4. In other words, even when the pivot shaft45rotates, the washer43Fw, the rear bracket43, the rear grab45c1, the washer45c3, and the disc spring45c4may not rotate.

Further, a user can pivot the head10(seeFIG.31) that is fixed to the front bracket42with respect to the pivot shaft44. For example, the head10may be pivoted within a range of +90 degrees to −90 degrees. In addition, due to the elastic force of the disc springs45c41and45c2described above, the head10may maintain a specific pivot angle if an external force equal to or greater than a specific level is not applied. During the pivoting movement of the head10, the user may feel a sense of fastening due to fastening of the boss45ccand the fixing hole45caor the slot45cb. In other words, when the boss45cccomes out of the slot45cband is inserted into the fixing hole45ca, the user can feel that the head10is located at a pivot angle of 0 degree, +90 degrees, or −90 degrees. Referring toFIG.35, a holder47may be disposed between the left wing43L and the right wing43R. A holder body470may cover the rear of the mount43F of the rear bracket43. A first part47L may protrude toward the mount43F from a left side portion of the holder body470, and may be adjacent to the left wing43L. A second part47R (seeFIG.33) may protrude from a right side portion of the holder47toward the mount43F, and may be adjacent to the right wing43R.

A tilt shaft46may extend in the left-and-right direction. The tilt shaft46may be formed through the left wing43L, the first part47L, the second part47R, and the right wing43R. A head (no reference numeral), which is one end of the tilt shaft46, may be seated on a side surface of the left wing43L. Another end of the tilt shaft46may be threaded, and a fastening member46dsuch as a nut may be fastened to the another end of the tilt shaft46on the right wing43R.

In addition, the tilt shaft46may have a cylindrical shape, and may be fixed to the left wing43L and the right wing43R. The tilt shaft46may be rotatably coupled to the holder47. That is, the tilt shaft46may provide a tilt axis. At least one washer46vmay be disposed between the second part47R and the right wing43R, and may have a circular hole through which the tilt shaft46passes.

An elastic member46amay be disposed between the left wing43L and the right wing43R. The elastic member46amay be wound around an outer circumference of the tilt shaft46a plurality of times, and may have elasticity. The elastic member46amay be a coil-shaped spring.

In addition, a portion46bof the elastic member46amay extend in a direction intersecting the tilt shaft46without being wound around the tilt shaft46. The portion46bof the elastic member46amay be caught by a seating portion43hthat protrudes rearward from the mount43F.

Also, one end of the elastic member46amay be provided at the portion46b, and another end of the elastic member46amay be fixed inside the holder47. A disc spring46wmay be adjacent to another end46cof the elastic member46a, and may be disposed between the elastic member46aand the second part47R. The disc spring46wmay have a circular hole (no reference numeral) through which the tilt shaft46passes. The disc spring46wmay be convex in a direction toward the elastic member46a, and may generate an elastic force in the axial direction of the tilt shaft46.

Accordingly, the tilt shaft46may rotate together with the rear bracket43, the front bracket42, and the plurality of members45c5,45c4,45c3,45c2,45c1,43Fw,45a, and44. In response to the rotation of the tilt shaft46, the head10(seeFIG.31) that is fixed to the front bracket42may be tilted up or down. For example, the head10may be tilted within a range of +25 degrees to −25 degrees. In addition, due to the elastic force of the elastic member46aand the disc spring46wdescribed above, the head10may maintain a specific tilt angle if an external force equal to or greater than a specific level is not applied.

Referring toFIGS.36and37, a first rotation unit48may be disposed at the rear of the holder47. A first connection portion471may connect the holder47and the first rotation unit48. For example, the holder47, the first connection portion471, and the first rotation unit48may be formed as one body.

A cable reel49may be disposed at the rear of the front bracket42. The cable reel49may be coupled to the left wing43L and the right wing43R through a fastening member49F such as a screw.

The rear bracket43and the holder47may be disposed in an inner space of a reel body (not shown), which has a hollow cylinder shape, of the cable reel49. A first plate49aand a second plate49bof the cable reel49may respectively protrude from front and rear ends of the reel body in a radial direction of the reel body, and may extend along an outer circumference of the reel body. In other words, the first plate49aand the second plate49bmay each have a ring shape. Accordingly, the cable C may be wound around the reel body of the cable reel49between the first plate49aand the second plate49b.

A distal end of the cable C wound around the reel body may be fixed to one end CCa of a cable head CC. The cable C may be a power cable and/or a signal cable. The cable C may consist of several strands.

Referring toFIGS.37and38, the front bracket42may be detachably coupled to the fixing plate41(seeFIG.31).

An inner cover40c1may cover the rear of the cable reel49, and may include a cover hole40hthrough which the first rotation unit48passes. Fastening members49f1and49f2may penetrate through the cable reel49to protrude rearward, and may be coupled to an inside of the inner cover40c1. For example, the fastening members49f1and49f2may be screws or bolts.

An inner circumference of an outer cover40c2may be coupled to an outer circumference of the inner cover40c1. The inner cover40c1and the outer cover40c2may cover the rear of a hole15hof the back cover500.

A cable fixing portion CF may cover the one end CCa of the cable head CC, and may be fixed to the fixing plate41through a fastening member such as a screw.

Another end CCb of the cable head CC may pass through a side wall of the fixing plate41, and may be electrically connected to a terminal (not shown) that is provided at one side of the power supply board PSU (seeFIG.30). For example, the terminal may be mounted to the right side of the power supply board PSU. The terminal may be referred to as a socket.

Referring toFIGS.39and40, the arm50may include an arm body (51,52). An upper arm body51and a lower arm body52may be coupled to each other. The arm50may be referred to as a rod50or a link50.

A front portion of the upper arm body51may be spaced upward from a front portion of the lower arm body52. A front groove50g1may be formed in a front portion of the arm body (51,52), and may have a “U” shape that is open forward. A rear portion of the upper arm body51may be spaced upward from a rear portion of the lower arm body52. A rear groove50g2may be formed in a rear portion of the arm body (51,52), and may have a “U” shape that is open rearward.

An upper insertion hole51amay be formed through the front portion of the upper arm body51in the vertical direction, and may face the front groove50g1. An upper fastening hole51bmay be formed through the rear portion of the upper arm body51in the vertical direction, and may face the rear groove50g2.

A lower fastening hole52amay be formed through the front portion of the lower arm body52in the vertical direction, and may be aligned with the upper insertion hole51a. A lower insertion hole52bmay be formed through the rear portion of the lower arm body52, and may be aligned with the upper fastening hole51b.

A cable groove50cmay be formed on a lower surface of the lower arm body52, and may extend along a lengthwise direction of the lower arm body52. The cable C (seeFIG.37) may be disposed at the cable groove50c.

Referring toFIGS.40and41, an upper cover53may cover the surface of the upper arm body51. A lower cover54may cover the surface of the lower arm body52. The upper cover53and the lower cover54may be formed separately or formed as one body.

The first rotation unit48may be inserted into the front groove50g1, and may be rotatably coupled to the arm50. A second rotation unit68may be inserted into the rear groove50g2, and may be rotatably coupled to the arm50. The second rotation unit68may protrude from a vertical member61described hereinafter toward the rear groove50g2.

Referring toFIGS.41and42, the first rotation unit48may include a first body480, a first fastening member48a, a first upper fixing washer48b, a first disc spring48d, a first upper washer48e, a first upper bushing48f, a first lower bushing48g, a first lower washer48h, and a first lower fixing washer48c. The first rotation unit48may be referred to as a first swivel unit48or a first swivel module48.

The first body480may be open vertically. The first body480may have a donut shape. For example, the first body480may be formed as one body with the first connection portion471. The first body480may be inserted into the front groove50g1.

The first fastening member48amay extend in the vertical direction. The first fastening member48amay be inserted into the arm50through the upper insertion hole51a(seeFIG.40), and may penetrate through a hole480hformed at a central portion of the first body480. A head48ahof the first fastening member48amay be disposed inside the upper arm body51. The first fastening member48amay be screwed into the lower fastening hole52a(seeFIG.40).

The first upper fixing washer48bmay be disposed below the head48ahof the first fastening member48a, and may be penetrated by the first fastening member48a. The first upper fixing washer48bmay be a toothed lock washer, and a tooth48btof the first upper fixing washer48bmay be inserted into and fixed to a groove (no reference numeral) formed in the upper arm body51.

The first disc spring48dmay be disposed below the first upper fixing washer48b. The first disc spring48dmay be convex toward the first upper fixing washer48b, and may generate an elastic force in an axial direction of the first fastening member48a.

The first upper washer48emay be disposed below the first disc spring48d, and may be penetrated by the first fastening member48a.

The first upper bushing48fmay be disposed opposite the first disc spring48dwith respect to the first upper washer48e. The first fastening member48amay penetrate through the first upper bushing48f. The first upper bushing48fmay have a cylindrical shape in which a flange (no reference numeral) is formed on an upper end thereof. The flange of the first upper bushing48fmay be in contact on a first upper groove480aformed along the circumference of the hole480hat an upper surface of the first body480. A portion (no reference numeral) of the first upper bushing48fmay be inserted into the hole480hof the first body480, and may be disposed between an inner circumferential surface of the first body480and an outer circumferential surface of the first fastening member48a.

The first lower bushing48gmay be disposed opposite the first upper bushing48f, and may be spaced downwardly from the first upper bushing48f. The first fastening member48amay penetrate through the first lower bushing48g. The first lower bushing48gmay have a cylindrical shape in which a flange (no reference numeral) is formed on a lower end thereof. The flange of the first lower bushing48gmay be in contact on a first lower groove480bformed along the circumference of the hole480hat a lower surface of the first body480. A portion (no reference numeral) of the first lower bushing48gmay be inserted into the hole480hof the first body480, and may be disposed between the inner circumferential surface of the first body480and the outer circumferential surface of the first fastening member48a.

The first lower washer48hmay be disposed below the first lower bushing48g, and may be penetrated by the first fastening member48a.

The first lower fixing washer48cmay be disposed opposite the first lower bushing48gwith respect to the first lower washer48h, and may be penetrated by the first fastening member48a. The first lower fixing washer48cmay be a toothed lock washer, and a tooth48ctof the first lower fixing washer48cmay be inserted into and fixed to a groove (no reference numeral) formed in the lower arm body52.

Accordingly, the first body480may rotate with respect to the first fastening member48a. In other words, the first fastening member48amay provide a first swivel axis. In addition, due to the elastic force of the first disc spring48ddescribed above, the head10may maintain a specific swivel angle if an external force equal to or greater than a specific level is not applied.

Referring toFIGS.41and43, the second rotation unit68may include a second body680, a second fastening member68a, a second lower fixing washer68b, a second disc spring68d, a second lower washer68e, a second lower bushing68f, a second upper bushing68g, a second upper washer68h, and a second upper fixing washer68c. The second rotation unit68may be referred to as a second swivel unit68or a second swivel module68.

The second body680may be open vertically. The second body680may have a donut shape. The second body680may be connected to the vertical member61through a second connection portion611. For example, the second body680, the second connection portion611, and the vertical member61may be formed as one body. The second body680may be inserted into the rear groove50g2.

The second fastening member68amay extend in the vertical direction. The second fastening member68amay be inserted into the arm50through the lower insertion hole52b(seeFIG.40), and may penetrate through a hole680hformed at a central portion of the second body680. A head68ahof the second fastening member68amay be disposed inside the lower arm body52. The second fastening member68amay be screwed into the upper fastening hole51b(seeFIG.40).

The second lower fixing washer68bmay be disposed above the head68ahof the second fastening member68a, and may be penetrated by the second fastening member68a. The second lower fixing washer68bmay be a toothed lock washer, and a tooth68btof the second lower fixing washer68bmay be inserted into and fixed to a groove (no reference numeral) formed in the lower arm body52.

The second disc spring68dmay be disposed above the second lower fixing washer68b. The second disc spring68dmay be convex toward the second lower fixing washer68b, and may generate an elastic force in an axial direction of the second fastening member68a.

The second lower washer68emay be disposed above the second disc spring68d, and may be penetrated by the second fastening member68a.

The second lower bushing68fmay be disposed opposite the second disc spring68dwith respect to the second lower washer68e. The second fastening member68amay penetrate through the second lower bushing68f. The second lower bushing68fmay have a cylindrical shape in which a flange (no reference numeral) is formed on a lower end thereof. The flange of the second lower bushing68fmay be in contact on a second lower groove680aformed along the circumference of the hole680hat a lower surface of the second body680. A portion (no reference numeral) of the second lower bushing68fmay be inserted into the hole680hof the second body680, and may be disposed between an inner circumferential surface of the second body680and an outer circumferential surface of the second fastening member68a.

The second upper bushing68gmay be disposed opposite the second lower bushing68f, and may be spaced upward from the second lower bushing68f. The second fastening member68amay penetrate through the second upper bushing68g. The second upper bushing68gmay have a cylindrical shape in which a flange (no reference numeral) is formed on an upper end thereof. The flange of the second upper bushing68gmay be in contact on a second upper groove680bformed along the circumference of the hole680hat an upper surface of the second body680. A portion (no reference numeral) of the second upper bushing68gmay be inserted into the hole680hof the second body680, and may be disposed between the inner circumferential surface of the second body680and the outer circumferential surface of the second fastening member68a.

The second upper washer68hmay be disposed above the second upper bushing68g, and may be penetrated by the second fastening member68a.

The second upper fixing washer68cmay be disposed opposite the second upper bushing68gwith respect to the second upper washer68h, and may be penetrated by the second fastening member68a. The second upper fixing washer68cmay be a toothed lock washer, and a tooth68ctof the second upper fixing washer68cmay be inserted into and fixed to a groove (no reference numeral) formed in the upper arm body51.

Accordingly, the second body680may rotate with respect to the second fastening member68a. In other words, the second fastening member68amay provide a second swivel axis. In addition, due to the elastic force of the second disc spring68ddescribed above, the head10may maintain a specific swivel angle if an external force equal to or greater than a specific level is not applied.

Referring toFIG.44, the stem63smay extend in the vertical direction, and may be aligned with the vertical member61. A lower end of the stem63smay be inserted into the port21of the base20.

A gas spring (62,63) may include an upper shaft62and a lower shaft63that is connected to the upper shaft62. The upper shaft62may extend in a lengthwise direction of the vertical member61. The upper shaft62may have a cylindrical shape in which upper and lower sides thereof are closed. At least a portion of the upper shaft62may be accommodated in the vertical member61. The lower shaft63may extend in a lengthwise direction of the upper shaft62, and may have a smaller diameter than the upper shaft62. The lower shaft63may be inserted into the upper shaft62. A lower end of the lower shaft63may be fixed onto the fixing member69B that is fixed on the stem63s.

The gas spring (62,63) may have a conventional gas spring structure in which compressed gas (e.g., compressed nitrogen) is filled. The upper shaft62may be a cylinder in which compressed gas is filled. The lower shaft63may penetrate through a lower surface of the upper shaft62, and may be a piston rod having a piston fixed at a distal end thereof. The piston may be disposed in the upper shaft62, and may divide an inner space of the upper shaft62into two spaces. The two spaces may communicate with each other through an orifice formed at the piston. An area of one surface of the piston that is connected to the lower shaft63may be smaller than an area of another surface of the piston that is opposite the one surface. Accordingly, the overall length of the gas spring (62,63) may be adjusted by controlling the flow of gas passing through the orifice. The gas spring (62,63) may be referred to as a gas cylinder.

A clamp64,65may be disposed opposite the vertical member61with respect to the upper shaft62. In other words, the upper shaft62may be disposed between the vertical member61and the clamp64,65. For example, the clamp64,65may be provided in plurality spaced apart from each other in the vertical direction.

The clamp64may include a semi-cylinder640, a left flange641, and a right flange642; and the clamp65may include a semi-cylinder650, a left flange651, and a right flange652. The semi-cylinder640and the semi-cylinder650may be in contact with an outer circumference of the upper shaft62. The left flange641may extend from one side of the semi-cylinder640to the left and be coupled to a first portion61s1of the vertical member61through a fastening member64F; the left flange651may extend from one side of the semi-cylinder650to the left and be coupled to a first portion65s1of the vertical member61through a fastening member65F. The right flange642may extend from another side of the semi-cylinder640to the right and be coupled to a second portion (not shown) of the vertical member61through a fastening member (not shown); the right flange652may extend from another side of the semi-cylinder650to the right and be coupled to a second portion (not shown) of the vertical member61through a fastening member (not shown).

Accordingly, the upper shaft62can be detachably coupled to the vertical member61, and can move down or up along the lower shaft63.

Referring toFIGS.44and45, a roller66a, a roller66b, a roller67a, and a roller67bmay be adjacent to the clamp64(first clamp) and the clamp65(second clamp). For example, first rollers66aand66bmay be adjacent to the first clamp64, and second rollers67aand67bmay be adjacent to the second clamp65.

The first rollers66aand66bmay include a first left roller66aand a first right roller66b. A body66a1aof a first left pin66a1may be formed through the first left roller66aand a left side portion61L of the vertical member61. A flange66a1bof the first left pin66a1may be disposed between the first left roller66aand the left side portion61L. The first left roller66amay be coupled to the left side portion61L through the first left pin66a1. A body66b1aof a first right pin66b1may be formed through the first right roller66band a right side portion61R of the vertical member61. A flange66b1bof the first right pin66b1may be disposed between the first right roller66band the right side portion61R. The first right roller66bmay be coupled to the right side portion61R through the first right pin66b1.

For example, the second rollers67aand67bmay have the same shape as the first rollers66aand66b. That is, the description described above with respect to the first rollers66aand66bmay be equally applied to the second rollers67aand67b. Accordingly, the second left roller67amay be coupled to the left side portion61L, and the second right roller67bmay be coupled to the right side portion61R.

In addition, the left rollers66aand67amay be disposed between a third rib30cand a fourth rib30d, and may be in contact with the third rib30cand the fourth rib30d. The right rollers66band67bmay be disposed between a first rib30aand a second rib30b, and may be in contact with the first rib30aand the second rib30b.

Accordingly, the vertical member61can smoothly move up and down in the pole30by the rollers66a,66b,67a, and67b.

Referring toFIGS.44and46, a first left flange641of the first clamp64may be disposed between the third rib30cand the fourth rib30d. The first right flange642of the first clamp64may be disposed between the first rib30aand the second rib30b. The first clamp64may include a first central protrusion64a, a first left protrusion64b, and a first right protrusion64c.

The first central protrusion64amay protrude from a first semi-cylinder640toward an inside of the pole30, and may be in contact with the inside of the pole30. The first left protrusion64bmay protrude from the first left flange641toward the third rib30c, and may be in contact with the third rib30c. The first right protrusion64cmay protrude from the first right flange642toward the second rib30b, and may be in contact with the second rib30b. Accordingly, the first central protrusion64a, the first left protrusion64b, and the first right protrusion64cmay cause friction between the vertical member61and the pole30.

For example, the second clamp65may be spaced downward from the first clamp64, and may have the same shape as the first clamp64. That is, the description of the first clamp64may be equally applied to the second clamp65. Accordingly, a second central protrusion65a, a second left protrusion65b, and a second right protrusion65cof the second clamp65may cause friction between the vertical member61and the pole30.

Thus, a position (height) of the vertical member61with respect to the base20can be kept constant by a friction force between the protrusion (64a,64b,64c,65a,65b,65c) and the pole30if an external force equal to or greater than a specific level is not applied.

Referring toFIG.47, the head10may be spaced upward from the base20. A user can pivot the head10. A pivot axis may pass through the center of the head10and be orthogonal to the head10. Referring to the left drawing ofFIG.47, the head10may be placed in landscape mode. Referring to the right drawing ofFIG.47, the head10may be placed in portrait mode.

Referring toFIG.48, a user can tilt the head10. Atilt axis, which is located behind the center of the head10, may be a horizontal axis parallel to the head10. The user can swivel the head10. A first swivel axis may be a vertical axis adjacent to one end of the arm50. A second swivel axis may be a vertical axis adjacent to another end of the arm50. The user can raise or lower the head10from the pole30.

The above-described pivoting, tilting, swiveling, and elevating operations of the head10may be implemented independently of each other. For example, the head10may be pivoted within a range of +90 degrees to −90 degrees. For example, the head10may be tilted within a range of +25 degrees to −25 degrees. For example, the head10, based on landscape mode, may be swiveled within a range of +65 to −65 degrees. For example, the head10may be located at 1,065 to 1,265 mm from the base20or the ground.

Referring back toFIG.25, a wheel29may be mounted on the lower surface of the base20. For example, a plurality of wheels29may be disposed along the circumference of the base20. Accordingly, a user can freely move the display device on the ground using the wheel29. The base20may be referred to as a moving base.

Referring toFIGS.1to48, according to an aspect of the preset disclosure, a display device may include: a head including a display panel; a stand that supports the head; a first connector fixed to any one of the head and the stand; and a second connector fixed to the other one of the head and the stand, and is aligned with the first connector in one direction, wherein the first connector may include a first pin extending in the one direction, and the second connector may include a second pin that defines a boundary of a pin hole into which the first pin is inserted and that surrounds and contacts a side surface of the first pin.

The stand may include an electronic component electrically connected to the head by coupling of the first pin and the second pin.

The head may include: a frame disposed at a rear of the display panel, to which the display panel is coupled, and supported by the stand; and an electronic component mounted on the frame and electrically connected to the first connector and the second connector. Any one of the first connector and the second connector may be fixed to the frame, and the other one of the first connector and the second connector may be fixed to the stand.

The stand may include a base; and a pole extending in the one direction, detachably coupled to the base, and to which the head is fixed. Any one of the first connector and the second connector may be fixed to the pole, and the other one of the first connector and the second connector may be fixed to the base.

The base may include a port formed at one surface of the base and into which an insertion portion of the pole is inserted. Any one of the first connector and the second connector may be disposed in the insertion portion, and the other one of the first connector and the second connector may be disposed in the port.

The pole may include a guide slit formed in a side surface of the insertion portion, and the base may further include a first guide rib formed at an inside of the port and inserted into the guide slit.

The base may further include a weight disposed in the base, to which the first connector or the second connector is fixed, and to which the pole is coupled. The weight may include a ridge surrounding the insertion portion that is inserted into the port. The ridge may include a second guide rib formed on a side wall thereof and inserted into the guide slit.

The second connector may further include a second pin housing in which the second pin is accommodated. The second pin housing may include a pin cover defining a boundary of an insertion hole, which is an inlet of the pin hole, and covering at least a portion of a distal end of the second pin.

The pin cover may include a pin guide surface defining a boundary of the insertion hole and formed such that a width of the insertion hole gradually decreases toward an insertion direction of the first pin.

The pin guide surface may be convex toward the insertion hole.

The second pin may include a pin side portion extending along a circumference of the first pin. The pin cover may extend along a circumference of the pin side portion and cover a distal end of the pin side portion.

A width of an inner circumferential surface of the pin side portion may be equal to or less than a width of an inner circumferential surface of the pin cover.

The pin side portion may include an inclined surface defining the distal end of the pin side portion and formed such that a width of an inner circumferential surface of the pin side portion gradually decreases toward an insertion direction of the first pin.

The first connector may include a first pin housing in which the first pin is accommodated. The second connector may include: a second pin housing in which the second pin is accommodated and inserted into an inner space of the first pin housing; and a third pin housing extending along a circumference of the second housing and spaced apart from a side surface of the second pin housing. A portion of the first pin housing may be inserted into a space between the second pin housing and the third pin housing.

The first pin housing may include: a first protruding portion formed on an inner circumferential surface of the first pin housing; and a first recessed portion formed on an outer circumferential surface of the first pin housing and opposite the first protruding portion. The second pin housing may include a second recessed portion formed on an outer circumferential surface of the second pin housing and into which the first protruding portion is inserted. The third pin housing may include a second protruding portion formed on an inner circumferential surface of the third pin housing and inserted into the first recessed portion.

The effect of the display device according to the present disclosure will be described as follows.

According to at least one of the embodiments of the present disclosure, it is possible to provide a docking mechanism of connectors.

According to at least one of the embodiments of the present disclosure, it is possible to provide a structure that can minimize damage of pins (terminals) during coupling of connectors.

According to at least one of the embodiments of the present disclosure, it is possible to provide a structure that can achieve connectors to be coupled to each other in an easier and secure manner.

According to at least one of the embodiments of the present disclosure, it is possible to provide a structure that can achieve secure electrical connection (e.g., stable power supply) using a relatively small number of pins (terminals).

According to at least one of the embodiments of the present disclosure, it is possible to provide a display device including a head to which a first connector or a second connector is fixed and a stand to which the second connector or the first connector is fixed.

According to at least one of the embodiments of the present disclosure, it is possible to provide a display device that can freely adjust an angle, height, or position of a head using a stand that supports the head.

The additional scope of applicability of the present disclosure will be apparent from the above detailed description. However, those skilled in the art will appreciate that various modifications and alterations are possible, without departing from the idea and scope of the present disclosure, and therefore it should be understood that the detailed description and specific embodiments, such as the preferred embodiments of the present disclosure, are provided only for illustration.

Certain embodiments or other embodiments of the present disclosure described above are not mutually exclusive or distinct from each other. Any or all elements of the embodiments of the present disclosure described above may be combined or combined with each other in configuration or function.

For example, a configuration “A” described in one embodiment and/or drawings may be combined with a configuration “B” described in another embodiment and/or drawings. Namely, although the combination between the configurations is not directly described, the combination is possible except in the case where it is described that the combination is impossible.

The above detailed description should not be construed as restrictive in all respects and should be considered as illustrative. The scope of the present disclosure should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present disclosure are included in the scope of the present disclosure.