Electronic frame and image displaying method of electronic frame

The present invention relates to an electronic frame and an image displaying method of an electronic frame. The electronic frame according to one exemplary embodiment of the present invention detects, through an optical sensing unit, parts that are hidden by a frame, sets only a display area that is not hidden by the frame as a valid area, resizes an image so that the image matches the valid area of the display, and displays the image. Accordingly, even if the size of the frame is changed, a phenomenon in which a part of the image is not shown due to the frame could be prevented, as an image-resizing is adjustably performed.

CROSS-REFERENCE TO RELATED PATENT APPLICATIONS

This application is a U.S. National Stage Application under 35 U.S.C. § 371 of PCT Application No. PCT/KR2016/001776, filed Feb. 24, 2016, which claims priority to Korean Patent Application No. 10-2015-0102159, filed Jul. 20, 2015, whose entire disclosures are hereby incorporated by reference.

TECHNICAL FIELD

The present invention relates to an electronic frame and an image displaying method of electronic frame.

BACKGROUND ART

The electronic frame (digital photo frame) means an apparatus for displaying data of image photographed by a digital image photographing apparatus (for example, a digital camera, a mobile phone, etc.) on a liquid crystal display (LCD) or the like.

The electronic frame may provide the function of a frame or an album of a photograph regardless of the attributes of the image such as resolution and color.

The electronic frame may display an image read from an embedded memory card or an image received through a wired or wireless network such as the Internet.

On the other hand, the LCD of the electronic frame may have parts hidden by a frame. Accordingly, when the image is displayed according to the resolution of the LCD of the electronic frame, there is a problem that parts of the displayed image are hidden by the frame, so that the user is provided with a partially cut-out image.

Further, in the case of the electronic frame provided in an assembly type, various frames having different sizes (horizontal length and vertical length) may be used. Accordingly, when displaying an image corresponding to the resolution of the LCD, there is a problem that parts of the image hidden by the frame can also be changed according to the type of the frame.

Therefore, it has been required to develop an intuitive interface for setting, changing, and selecting image to be output, and it is necessary to meet the needs of users who want to use various electronic frames more conveniently.

DISCLOSURE

Technical Problem

The present invention is directed to solving the above-mentioned problems and other problems.

An object of the present invention is to automatically recognize the parts of the image hidden by the frame of the electronic frame when the image is displayed corresponding to the resolution of the display, thereby providing to the user without image which is hidden by the frame.

An object of the present invention is to automatically recognize the parts hidden by the frame and resize and display the image to an appropriate size, thereby adjusting parts where the image is displayed on the display to fit the size of the frame.

An object of the present invention is to automatically recognize an active area of the display corresponding to the size of the frame although the display size of the electronic frame is fixed and only the frame is changed and automatically adjust an area in which an image is displayed on the display.

Technical Solution

In an aspect of the present invention, an electronic frame includes a display for displaying an image; a frame supporting the display along an edge of the display; an optical sensor disposed at a position having an area where at least a part of the edge areas of the display overlap with the frame; and a controller configured to calculate a first area hidden by the frame in the display according to a sensing signal of the optical sensor, resize a size of the image to match a size of a second area in the display aside from the first area and display the resized image in the second area.

The optical sensor may include a transparent film sensor for detecting a current due to light transmission, and the transparent film sensor is attached to a vertex area in which a first edge and a second edge of the display intersect.

The vertex area to which the transparent film sensor is attached may include a crossing area in which a first frame supporting the first edge and a second frame supporting the second edge intersect, and a display area not hidden by the frame.

The controller may be configured to recognize, as the first area, an area where a current of a predetermined value or more is not detected due to the light is not transmitted by the frame; and recognize, as the second area, an area where a current of the predetermined value or more is detected due to the light transmission.

The vertex area to which the transparent film sensor is attached may be a crossing area in which a first frame supporting the first edge and a second frame supporting the second edge intersect.

The display may include a liquid crystal display (LCD), and the transparent film sensor may recognize, as the first area, an area through which light of a backlight unit of the liquid crystal display is transmitted when the image is displayed on the display.

The transparent film sensor may comprise a first transparent film sensor attached to a first vertex area in which the first edge and the second edge of the display intersect; and a second transparent film sensor attached to a second vertex area in which a third edge and a fourth edge of the display intersect.

The transparent film sensor may be a transparent photovoltaic film.

The electronic frame may further comprise a memory, wherein the controller may be configured to store a scale factor for resizing the image according to a size of the first area in a memory; resize the image to be displayed on the display based on the scale factor; and display the resized image on the second area.

The scale factor may be changed according to the size of the frame.

The controller may be configured to display a marker including information on the scale factor on the display with the image.

The electronic frame may further comprise a wireless communication unit, wherein the controller maybe configured to transmit the information on the scale factor to an external terminal through the wireless communication unit upon request of the external terminal; and receive the resized image based on the scale factor from the external terminal through the wireless communication unit.

The electronic frame may further comprise a wireless communication unit for receiving the image data, and wherein the image may be received from an external terminal through the wireless communication unit.

In another aspect of the present invention, an image displaying method of electronic frame includes displaying an image on a display; detecting a sensing signal of an optical sensor attached to an edge of the display; calculating a first area hidden by the frame in the display according to a sensing signal of the optical sensor; resizing a size of the image to match a size of a second area in the display aside from the first area; and displaying the resized image in the second area.

The calculating the first area may comprise setting a scale factor for resizing the image according to a size of the first area; and storing the scale factor in the memory.

The method may further comprise, when a second image which is a next image of a first image is displayed on the display after the first image displayed on the display is resized based on the scale factor, resizing the second image based on the scale factor; and displaying the second image on the second area.

Advantageous Effects

According to an embodiment of the present invention, the active area of the display can be automatically adjusted corresponding to the size of the frame.

Further, according to an embodiment of the present invention, the parts of the image hidden by the frame of the electronic frame is automatically recognized when the image is displayed corresponding to the resolution of the display, thereby providing to the user without the parts hidden by the frame.

Further, according to an embodiment of the present invention, the parts hidden by the frame are automatically recognized and the image is resized and displayed to an appropriate size, thereby adjusting parts where the image is displayed on the display to fit the size of the frame.

Further, according to an embodiment of the present invention, the active area of the display corresponding to the size of the frame is automatically recognized although the display size of the electronic frame is fixed and only the frame is changed and the area in which the image is displayed on the display is automatically adjusted.

MODE FOR INVENTION

FIG. 1schematically illustrates a system for explaining the operation of an electronic frame according to an embodiment of the present invention.

Referring toFIG. 1, the system may include an electronic frame100(100a,100b,100c), a server1, and an image capturing device20(20a,20b,20c).

The server1may transmit image data to the electronic frame100through a wired/wireless network. The image data stored in the server1may be transmitted from the image capturing device20and transmitted from another electronic apparatus connected to the server1.

The server1may manage accounts of a plurality of users. A plurality of users may include a user of the electronic frame100. The server100may transmit the image data of the user of the electronic frame100to the electronic frame100. The image data of the user may be image data associated with the account of the user of the electronic frame100of the server1.

The server1may include a plurality of cloud servers providing cloud services. The image data of the server1may be image data uploaded to the account of the user of the electronic frame100. The server1can provide an interface through which the image capturing device20can upload image data to the server1via a web or the like. The server1may provide an interface through which the electronic frame100can download image data from the server1. The interface may be provided in the image capturing device20to upload image data to the server1or download image data from the server1, through a interface operation of the user.

Meanwhile, according to an embodiment of the present invention, the server1may store information on a positional relationship between a plurality of electronic frames. The server (1) can transmit image data to a plurality of electronic frames based on the positional relationship between the plurality of electronic frames.

Meanwhile, according to an embodiment of the present invention, the server1may store frame size information and display size information of each of the plurality of electronic frames100a,100b, and100c. For example, the display size of the first electronic frame100amay be 5*7 inches, but the display size shown to the user, except for the area hidden by the frame supporting the display along the edges, may actually be smaller than 5*7 inches. In the case of the server1transmits the image to the first electronic frame100aafter storing a ratio information according to the display size and the frame size, the server1may resize the image based on the ratio. Accordingly, the first electronic frame100amay display the resized image received from the server1without a separate image resizing process.

Frame size information and display size information of the second electronic frame100band the third electronic frame100cmay also be stored in the server1. The server1may transmit the image to each electronic frame after the image resizing process by varying the ratio according to the size of the frame and the display size, even if the same image is used.

As described above, the server1may transmit the resized image to the electronic frame, but an embodiment described in the following specific drawings relates to the electronic frame itself resizes and displays the image so that the area hidden by the frame, does not exist.

The image capturing device20is an apparatus for generating image data. The image capturing device20can generate image data including a subject by photographing the subject using a camera.

The image capturing device20may include a mobile terminal20a, a digital camera20b, a camcorder20c, and the like.

The image capturing device20may store information on the positional relationship among the plurality of electronic frames. The image capturing device20may transmit an image photographed to the plurality of electronic frames so as to be displayed based on the positional relationship between the plurality of electronic frames.

Meanwhile, the image capturing device20may get the information on the positional relationship among the plurality of electronic frames and transmit the information to the server1. When the server1transmits the image to the electronic frame100, the server1may transmit the image based on the information on the positional relationship.

When the image capturing device20transmits image data to the electronic frame100, the image capturing device20may transmit the same image data to the server1. That is, the server1, the image capturing device20, and the electronic frame100may perform data synchronization between data transmission and reception.

FIG. 2is a block diagram of an electronic frame according to an embodiment of the present invention.

Referring toFIG. 2, the electronic frame100is shown having components such as a wireless communication unit110, a sensing unit120, a power supply unit130, an interface140, an output unit150, a memory160, and a controller170. It is understood that implementing all of the illustrated components is not a requirement, and that greater or fewer components may alternatively be implemented.

Specifically, the wireless communication unit110may include one or more modules for enabling wireless communication between the electronic frame100and the wireless communication system, between the electronic frame100and the server1, or between the electronic frame100and the image capturing device20. Further, the wireless communication unit110may include one or more modules that connect the electronic frame100to one or more networks.

According to an embodiment of the present invention, the electronic frame100may perform data communication with the server1and/or the image capturing device20through the wireless communication unit110. That is, the electronic frame100may transmit information on the positional relationship among the plurality of electronic frames to the server1and/or the image capturing device20, and receive the image from the server1and/or the image capturing device20, and display the image.

The wireless communication unit110may include a short-range communication module114. The short-range communication module114may sense (or recognize), Around the first electronic frame (100ainFIG. 1), a second electronic frame (100binFIG. 1) and a third electronic frame (10cinFIG. 1) capable of communicating with the first electronic frame100a. Further, the controller170may receive the position information of the second electronic frame100band the third electronic frame100cthrough the short-distance communication module111.

The controller170may sense the distances of the second electronic frame100band the third electronic frame100cfrom the first electronic frame100abased on the intensity of the signal received through the short distance communication module. When the first electronic frame100ais connected to the second electronic frame100band the third electronic frame100cvia the short-range communication module, the controller170may receive the frame size (Length*Width) of the second electronic frame100band the frame size (Length*Width) of the third electronic frame100cfrom the second electronic frame100b. Accordingly, the first electronic frame100amay confirm information on the positional relationship between the first electronic frame100aand other electronic frames in the vicinity.

The first electronic frame100amay share the information on the positional relationship among the electronic frames with the second electronic frame100b, the third electronic frame100c, the server1, and the image capturing device20.

The sensor120may include at least one sensor for sensing at least one of information in the electronic frame100, surrounding information surrounding the electronic frame, and user information. According to an embodiment of the present invention, the sensor120may include an illumination sensor121and a optical sensor123.

The illumination sensor121is provided in a part of the frame of the electronic frame100to measure the ambient brightness of the electronic frame100. According to an exemplary embodiment of the present invention, the controller170may control the brightness characteristics of the image displayed on the electronic frame100based on the value sensed through the illumination sensor121.

The optical sensor123may sense light incident on a front glass side of the display or sense light emitted from the pixel of the display itself.

All displays have a layer that arranges pixels representing the brightness and color in a matrix structure and forms a display area, and a front glass for protecting the layer. The front glass may be integrated with the layer.

The optical sensor123may be attached to a part of the display front surface (front glass) in the form of a transparent film. The feature, which is automatically recognized the area hidden by the frame through the transparent film type optical sensor attached to the display front surface, will be described in detail with reference toFIGS. 5 to 15.

A method for resizing the image through the optical sensor will be described in detail reference toFIGS. 5 to 11. Another method for resizing the image through the optical sensor will be described in detail reference toFIGS. 12 to 15.

The optical sensing unit123may be disposed on the front glass or on the front or rear surface of the layer so as to correspond to the matrix arrangement matched an arbitrary area of the display. Although not shown, the optical sensor123may include a sensing detection unit (not shown) and an effective data processing unit (not shown). The sensing detection unit recognizes the position on the matrix array of the optical sensor for performing the sensing operation when the sensing signal is generated according to the sensing operation of the incoming light. The effective data processing unit electrically converts the intensity of the light sensing signal when the sensing signal is generated according to a sensing operation of the incident light in the optical sensor123and compares the intensity of the sensing signal with the intensity of a predetermined reference signal to determine the validity of the sensing operation.

The power supply unit130receives external power and internal power under the control of the controller170and supplies power required for operation of the respective components. The power supply unit130may include a battery, and the battery may be configured to be embedded in the terminal body, or configured to be detachable from the electronic frame100for recharging. The power supply unit130may include a connection port. The connection port may be configured as one example of the interface140to which an external charger for supplying power to recharge the battery is electrically connected.

Meanwhile, according to an embodiment of the present invention, when the connection port meet a certain condition, it can be charged by being drawn out from the body of the electronic frame100and engaging with a charging station.

For example, the charging station may be located at the bottom of the living room, and the electronic frame100may be spaced a certain distance from the charging station and mounted on the living room wall. When the living room lighting is perceived to be dark, the connection port can be drawn out from the electronic frame100toward the charging station to be engaged with the charging station. When the charging of the power supply unit130is completed, the connection port can be separated from the charging station and can be drawn into the body of the electronic frame100.

Meanwhile, the connection port of the power supply unit may be connected to another electronic frame in the vicinity.

The interface140may serve as a path allowing the electronic frame100to interface with external devices. For example, the interface140may include at least one of an external charger port, a wired/wireless data port, a memory card, and a port for connecting a device having an identification module. The electronic frame100may be controlled through the external device connected to the interface130. The external device may include the server1, the image capturing device20, and the like described with reference toFIG. 1.

The output unit150may include at least one of a display151and an optical output module152so as to generate output related to vision, audio, etc.

The display unit151may include at least one of a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display, a three-dimensional display (3D display) and an electronic ink display (e-ink display).

Meanwhile, the display unit151of the electronic frame100according to an embodiment of the present invention may include a touch sensor that senses a touch to the display unit151in order to receive a control command by the touch.

Further, the display151may restrict a user's input through the display unit151to stick to the function of the image display of the electronic frame100. That is, the display unit151may not include a touch sensor.

The optical output module152is configured to output light for notifying the occurrence of an event. For example, the event may include a case where the image data is received from the server1or the image capturing device20, a case where the positional relationship information is shared with neighboring electronic frames, and a case where the battery charging is required, and the like. The controller170may control the optical output module152to terminate the output of light when an event confirmation of the user is detected.

The memory160can store programs to support operations of the controller170and store input/output data (for example, image data) temporarily.

The memory160stores data supporting the function of the electronic frame. The memory160may store an application program driven by the electronic frame100(an application program or an application), data for operation of the electronic frame100, and instructions. At least some of these applications may be downloaded from an external server via wireless communication.

The controller170controls at least some of the components of the electronic frame100to control the operation of the electronic frame100as a whole. Further, the controller170may control any one or a combination of the above-described components in order to implement various embodiments described below on the electronic frame100according to the present invention.

FIG. 3is an exploded perspective view of an electronic frame body.

Referring toFIG. 3, the electronic frame100may include a front body191, a rear body192, and a display151disposed between the front body191and the rear body192.

The front body191, as the frame10of the electronic frame that supports the display151at the front of the display151, is combined with the display151to cover the edge of the display151.

The display unit151may include at least one of a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display, a three-dimensional display (3D display) and an electronic ink display (e-ink display).

The display unit151may include a touch sensor that senses a touch to the display unit151in order to receive a control command by the touch.

Meanwhile, the display151may restrict a user's input through the display unit151to stick to the function of the image display of the electronic frame100. That is, the display unit151may not include a touch sensor.

The rear body192is a unit for supporting the display151from the rear face, and an internal space for accommodating various electronic components may be provided. The rear body192may further include a bracket coupling part (not shown) which is coupled with a predetermined bracket provided on a wall to mount the electronic frame100on the wall.

As described above, the body of the electronic frame100is divided into the front body191and the rear body192. Hereinafter, a front body191supporting the front of the display151, particularly, the frame10covering the edge of the display151will be regarded as the same as the front body191.

The body size of the electronic frame100can be determined by the width L1and the length L2. For example, the body size may be set to 5*7 inches, 8*10 inches, or to cover 23 inches liquid crystal display.

InFIG. 3, the sizes of the frame10and the display151are configured to be the same, but the present invention is not limited thereto. For example, since the display151must be supported by the frame, the size of the display151may be smaller than the size of the frame10. For example, the width and length of the display151may be smaller than the width and length of the frame10.

Meanwhile, the optical sensor123may be attached to the front surface of the display151and disposed between the display151and the frame10. The optical sensor123may be disposed at a vertex area where the first edge and the second edge of the display151intersect. The display151in the form of a rectangle or a square has four vertex regions, and the optical sensor123, of the four vertex areas, may be arranged in one vertex area or two vertex areas opposed in a diagonal direction.

The number or position of the optical sensor123may be appropriately changed in consideration of the size and shape of the electronic frame100and the processing capability of the processor, and the like.

Hereinafter, a specific example in which image data displayed on the display of the electronic frame according to an embodiment of the present invention is resized in consideration of parts hidden by the frame will be described.

FIG. 4is a flowchart of a method of displaying an image of an electronic frame according to an embodiment of the present invention.

The method of displaying an image of an electronic frame according to an embodiment of the present invention can be implemented in the electronic frame100described with reference toFIGS. 1 to 3. Hereinafter, an image displaying method of electronic frame according to an embodiment of the present invention and an operation of the electronic frame100for implementing the method will be described in detail with reference to necessary drawings.

Referring toFIG. 4, the controller170of the electronic frame100may display an image on the display151(S100).

The image displayed on the display151may be an image stored in the memory160or an image received from an external device through the wireless communication unit110. The image displayed on the display151may be displayed corresponding to the size of the display151.

The controller170may analyze a sensing signal of the optical sensor (S110).

The optical sensor may be disposed at a position where at least a part of the edge of the display151has an area overlapping the frame.

The controller170may analyze the sensing signal of the optical sensor to detect a first area hidden by the frame of the display151(S120).

Since the front face of the display151must be supported by the frame, some of the areas where the image can be displayed on the display151may be hidden by the frame. The display151may include a bezel area. However, when the frame covers the bezel area, some of the effective areas where the image is actually displayed may be hidden by the frame.

The optical sensor recognizes the area where the displayed digital image is covered by the frame, with the digital image displayed in the effective area of the display. The optical sensor can detect a current due to light transmission. Hereinafter, an area of the display151of the electronic frame100where the digital image can be displayed may be referred to as an effective area of the display.

The incident light may be natural light that is introduced from the front surface of the electronic frame100while the electronic frame is hung on the wall.

The controller170may recognize, as the second area, an area where a current of the predetermined value or more is detected due to the light transmission. That is, the second area may be defined as an area of the display151that is not hidden by the frame among valid areas in which the image can be displayed.

The controller170may recognize, as the first area, an area where a current of a predetermined value or more is not detected due to the light is not transmitted by the frame. That is, the first area may be defined as an area of the display151that is hidden by the frame among the valid areas in which the image can be displayed.

Further, the incident light may be light by a backlight unit irradiated from the rear surface of the display151in a state that a digital image is displayed. In this case, the optical sensor attached to the front surface of the display151can detect the light irradiated from the rear surface of the display151due to the display of the digital image, and can distinguish a region where a current value of a predetermined threshold value or more is detected.

In the embodiment of the present invention, it will be explained in advance that the arrangement structure of the optical sensors is differently described according to the type of light introduced into the optical sensor.

For example, the optical sensor may be a sensor in the form of a transparent film. When the incident light is natural light, an area of the display to which the transparent film sensor is attached may include a crossing area in which a first frame supporting the first edge and a second frame supporting the second edge intersect, and a display area not hidden by the frame.

Further, for example, when the incident light on the optical sensor is light by a backlight unit irradiated from the rear surface of the display151, the transparent film sensor is disposed in an area of the same size as intersecting area where the first frame supporting the first corner of the display151and a second frame supporting the second corner intersect.

According to the sensing signal analysis of the optical sensor, the controller170can distinguish the first area hidden by the frame in the effective display area and the second area aside from the first area.

The controller170of the electronic frame100may resize the image so that the size of the image displayed in the effective region including the first region and the second region matches the second region in operation S130. The process of S130may be performed by the controller170or an image scaler provided as a module independent of the controller170.

The controller170can display the resized image in the second area (S140).

FIG. 5is a plan view of an electronic frame according to an embodiment of the present invention.FIG. 6is a cross-sectional view taken along the line A-A′.FIG. 7is an enlarged view illustrating a state in which the transparent film sensor is attached.FIG. 8is a view for specifically explaining a first area201hidden by a frame and a second area203not hidden by a frame among the display areas.

Referring toFIG. 5, the size of the display151of the electronic frame100may be determined by four vertexes151a,151b,151c, and151d. The display151has the four edges and may have a structure in which at least a part of each edge is hidden by the frame10so that the front face of the display151is supported by the frame.

That is, referring toFIG. 6, the longitudinal edges of the display151are held by an L-shaped frame. As a result, the display151can be divided into an area (first area) hidden by the frame and an area (second area) not hidden by the frame.

Referring again toFIG. 5, a valid area in which the digital image can be displayed in the display151may be a range determined by the four vertexes151a,151b,151c, and151d.

The transparent film sensor123may be attached to the first vertex151aof the four vertices151a,151b,151c, and151d. The transparent film sensor123may have a rectangular shape, and may be attached to correspond to the first vertex in order to recognize at which point of the display151an area where a current of a predetermined threshold value or more is detected due to the light inflow on the transparent film sensor123.

InFIG. 5, the size of the display151is shorter than the width and length of the frame. However, the present invention is not limited thereto. That is, the display151applied to the embodiment of the present invention may be equal to the size of the frame.

Referring toFIG. 7, the optical sensor123is disposed between the front surface of the display151and the frame10. The area occupied by the optical sensor123of the display151may include an area201overlapped with the frame and a non-overlapping area203.

Referring toFIG. 8, the transparent film sensor123may include a crossing area201(which may correspond to the first area) in which a first frame10asupporting the first edge and a second frame10bsupporting the second edge intersect, and a display area203(which may correspond to the second area) not hidden by the frame. InFIG. 8, the light detected by the optical sensor123may be natural light introduced from the front surface of the display151.

The arrangement structure of the frame10, the display151, and the optical sensor123has been described above with reference toFIGS. 5 to 7. A process of recognizing parts hidden by the frame in the effective area of the display according to the structure of the electronic frame ofFIGS. 5 to 7will be described in more detail with reference toFIGS. 9 to 11.

FIGS. 9 to 11are views for explaining a process of distinguishing the first region and the second region by an optical sensor.

Referring toFIG. 9, the rectangular optical sensor123may include a plurality of sensing units11,12, . . . ,43,44arranged at constant spacing. The positions where the respective sensing units11,12, . . . ,43,44are disposed may correspond to the pixel positions of the display151. Thus, the constant spacing may be the spacing between the pixels of the display151.

When natural light enters the display151in the state that a digital image is displayed, the sensing units of the first group11,12,21,22are group exposed by natural light, and the sensing unit of the second group (13,14,23,24,31,32,33,34,41,42,43,44) is blocked the natural light by the frame.

Referring toFIG. 10, a process of recognizing a region hidden by a frame based on the sensing result of the sensing units11,12,13, and14disposed on a line B-B′ inFIG. 9will be described.

In the case of the sensing units11and12included in the first group among the sensing units (11,12,13,14) arranged on the line B-B′, the current value I1equal to or greater than the threshold value Ref can be output. On the other hand, in the case of the sensing units12and13included in the second group among the sensing units11,12,13and14arranged on the line B-B′, the current values I2and I3less than the threshold value Ref can be output.

The controller170analyzes the result of the sensing signal. The controller170recognizes the length D1corresponding to the sensing units13and14included in the second group among the sensing units11,12,13, and14disposed on the line B-B′ as the width hidden by the frame.

Referring toFIG. 11, a process of recognizing a region hidden by a frame based on the sensing result of the sensing units11,21,31, and41disposed on a line C-C′ inFIG. 9will be described.

In the case of the sensing units11and21included in the first group among the sensing units (11,21,31,41) arranged on the line C-C′, the current value I4equal to or greater than the threshold value Ref can be output. On the other hand, in the case of the sensing units31and41included in the second group among the sensing units11,21,31,41arranged on the line C-C′, the current values I5less than the threshold value Ref can be output.

The controller170analyzes the result of the sensing signal. The controller170recognizes the length E1corresponding to the sensing units31and41included in the second group among the sensing units11,21,31, and41disposed on the line C-C′ as the length hidden by the frame.

Accordingly, the controller170uses the first vertex151aof the display151as a reference point and the width D1and the length E1as vector components. The controller170calculates the size of the vector (SF) by the vector component D1and a vector component E1in the scale factor.

The controller170may reduce the image by applying the scale factor SF to the previously displayed image using the first vertex151aas a reference point.

Meanwhile, The controller170may also apply the scale factor SF calculated for the first vertex151ato the remaining vertexes of the display151to perform an image resizing process using the same scale factor for the entire image.

Meanwhile, in the above-described example, a process of image resizing through processing of vector components has been described, but the present invention is not limited thereto.

FIGS. 12 to 13are a cross-sectional view and a plan view for explaining a state in which an optical sensor is arranged according to another embodiment of the present invention.

Referring toFIG. 12, the optical sensor123is disposed between the front surface of the display151and the frame10. The area occupied by the optical sensor123of the display151may be an area201overlapped with the frame

Referring toFIG. 13, The optical sensor123may be attached to a vertex area of the display151. The vertex area to which the optical sensor123may be an area205overlapping the display area among the areas where the first frame10asupporting the first edge of the display151and the second frame10bsupporting the second edge intersect.

The display151may include a liquid crystal display (LCD). The controller170can recognize the area into which the light of the backlight unit151aof the liquid crystal display is incident as the first area205hidden by the frame of the display151.

FIGS. 14 to 15are views for explaining another example of recognizing an area hidden by a frame, in accordance with the arrangement structure of the optical sensor disclosed inFIG. 12.

Referring toFIG. 14, the rectangular optical sensor123may include a plurality of sensing units11,12, . . . ,32,33arranged at constant spacing. The positions where the respective sensing units11,12, . . . ,32,33are disposed may correspond to the pixel positions of the display151. Thus, the constant spacing may be the spacing between the pixels of the display151.

When light (light of a display pixel) is incident on the display151by the backlight unit, all the plurality of sensing units11,12, . . . ,32,33can output a predetermined current value by the incident light.

Referring toFIG. 15, The sensing result of each of the sensing units11,12,13outputs the current value T1exceeding the threshold Ref reference value. The length D1occupied by each sensing unit11,12,13recognizes as a width hidden by the frame. The same applies to the length.

That is, when viewed from the front of the electronic frame100, all the plurality of sensing units (11,12, . . . ,32,33) are parts hidden by the frames. The sensing unit outputs effective sensing data since light due to the display pixels is input. Accordingly, the controller170can perform image resizing through the processing of the vector components described with reference toFIG. 9.

Referring toFIGS. 5 to 11andFIGS. 12 to 15, the electronic frame100according to an embodiment of the present invention is configured to distinguish area hidden by a frame through the transparent film sensor attached to the front surface of the display and display the image corresponding to the size of the area hidden by the frame among the valid area of the display.

FIG. 16is a view for explaining an example of displaying a resized image in consideration of an area hidden by a frame according to an embodiment of the present invention.

Referring toFIG. 16, (a) is an exemplary screen in which the first image I1is displayed on the display151of the electronic frame100before the image resizing process according to an embodiment of the present invention is performed. (b) is a result IR in which the image resizing process described in the above-described example is performed on the first image I1. The result IR means that the complete image containing the parts that was hidden by the frame and not visible is displayed in the valid area of the display.

Meanwhile, the electronic frame100according to an embodiment of the present invention may store the scale factors SF calculated in the processes ofFIGS. 5 to 11 and 12 to 15in the memory160.

Accordingly, the controller170can apply the stored scale factor (SF) collectively to the images displayed thereafter to perform the image resizing process. That is, a processing of the sensing signal of the optical sensor to calculate an additional scale factor is unnecessary. Once the scale factor (SF) is calculated, the image resizing algorithm by the corresponding scale factor may be applied to all images displayed subsequently.

FIG. 17is a view for explaining an example of displaying an image on an electronic frame according to another embodiment of the present invention.

The electronic frame100according to an embodiment of the present invention may display a marker M including the information on the scale factor SF on the display151together with the resized image.

The electronic frame100receives the image from an external terminal through the wireless communication unit110and displays it on the display151. Therefore, in case of the external device stores the scale factor information, when the external device transmits the image data to the electronic frame100, the image resizing result based on the scale factor information is transmitted to the electronic frame100. The electronic frame100can display a complete image without parts hidden by the frame, even if the electronic frame100displays the received image on the display151without any image resizing.

The marker may be provided in the form of a QR code.

Referring toFIG. 17, the external mobile terminal200can photograph the electronic frame100by a camera. The external mobile terminal200can request information included in the marker on the electronic frame100while photographing the electronic frame100(1). The electronic frame100can transmit the marker information including information on the scale factor to the external mobile terminal200at the request of the external mobile terminal200(2). The external mobile terminal200receiving the scale factor information may perform an image resizing process on the image to be transmitted to the electronic frame100and transmit the resized image to the electronic frame100.

Various embodiments may be implemented using a machine-readable medium having instructions stored thereon for execution by a processor to perform various methods presented herein. Examples of possible machine-readable mediums include HDD (Hard Disk Drive), SSD (Solid State Disk), SDD (Silicon Disk Drive), ROM, RAM, CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, the other types of storage mediums presented herein, and combinations thereof. If desired, the machine-readable medium may be realized in the form of a carrier wave (for example, a transmission over the Internet). The processor may include the controller of the mobile terminal. The foregoing embodiments are merely exemplary and are not to be considered as limiting the present disclosure. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.1: Server20: Image capturing device100: Electronic frame151: Display123: Optical sensor10: Frame170: controller