Electronic device and method for controlling same

Abstract

An electronic device is disclosed. The electronic device comprises: an interface connected to one display device belonging to a display group; a memory that stores center information to be applied to the display device and brightness correction information according to a degree of deviation from the center; and at least one processor that corrects an image signal to be provided to the display device on the basis of the center information and the brightness correction information and provides the corrected image signal to the display device through the interface.

Description

Electronic device and method of controlling the same

[0001] The present disclosure relates to an electronic device and a control method thereof, and more particularly, to an electronic device for providing a video signal having a luminance value corrected to a display device and a control method thereof.

[0002] Recently, various LED modular display systems have been developed. These systems are implemented by physically connecting multiple LED display devices, allowing them to display high-resolution images on a large screen, providing users with a visually satisfying experience.

[0003] However, as multiple LED display devices display high-resolution images, LED modular display systems can consume significant power. Consequently, the need for technologies that can reduce the power consumption of LED modular display systems is growing.

[0004] An electronic device according to one or more embodiments of the present disclosure includes an interface connected to one display device belonging to a display group, a memory storing center information to be applied to the display device and brightness correction information according to a degree of separation from the center, and at least one processor for correcting an image signal to be provided to the display device based on the center information and the brightness correction information and providing the corrected image signal to the display device through the interface, wherein the at least one processor, when shape information and overall resolution information of the display group are obtained, obtains the center information based on the shape information and the overall resolution information and stores the obtained center information in the memory, when position information of the display device is obtained, calculates the degree of separation from the center for each of a plurality of pixels included in the display device based on the position information and the center information, identifies a brightness correction value for each of the plurality of pixels based on the calculated degree of separation from the center and the brightness correction information, corrects a brightness value included in an image signal to be provided to the display device based on the brightness correction value, and identifies a corrected brightness value for each of the plurality of pixels, and provides the corrected image signal including the corrected brightness value to the display device through the interface.

[0005] The at least one processor may generate a two-dimensional coordinate system having a location corresponding to the center point of the display group as an origin and a pixel pitch as a unit length based on the shape information and the overall resolution information, identify the coordinates of each of the plurality of pixels included in the display device within the two-dimensional coordinate system based on the location information of the display device, and calculate the degree of separation from the center for each of the plurality of pixels based on the coordinates of each of the plurality of pixels.

[0006] The at least one processor may, when the display group operates in a multi-view mode displaying multiple images, obtain position information and resolution information of at least one external display device displaying the same image as the display device within the display group, identify an overall shape of a display cluster for displaying the image based on the position information and resolution information of the at least one external display device, and obtain and store the center information in the memory based on the overall shape of the identified display cluster.

[0007] The luminance correction information according to the degree of separation from the center includes information on the rate of change of the luminance correction value for each region within the display group, and the at least one processor can identify the entire shape of the display group based on the shape information of the display group, identify the rate of change of the luminance correction value for each region corresponding to the entire shape, and store information on the rate of change of the luminance correction value for each region identified in the memory.

[0008] The at least one processor may set the rate of change of the luminance correction value in the horizontal direction to be smaller than the rate of change of the luminance correction value in the vertical direction when the overall shape of the display group is a rectangle whose horizontal length is longer than its vertical length.

[0009] The rate of change of the luminance correction value in the horizontal direction may include information about the change of the luminance correction value of pixels included between the center region and the horizontal edge region of the display group, and the rate of change of the luminance correction value in the vertical direction may include information about the change of the luminance correction value of pixels included between the center region and the vertical edge region of the display group.

[0010] The luminance correction information according to the degree of separation from the center includes luminance difference information,

[0011] The above luminance difference information includes a ratio of a luminance correction value of an edge area of ​​the display group to a luminance correction value of a center area of ​​the display group, and the at least one processor, when information on current power consumption of the display group is obtained, compares the current power consumption with a preset power value, and sets the ratio to a preset ratio value or more when the current power consumption is less than the preset power value, and sets the ratio to a ratio less than the preset ratio value when the current power consumption is greater than the preset power value.

[0012] The at least one processor may obtain information about the location of occurrence of a key event within the entire image displayed by the display group, and may obtain the center information based on the shape information and the information about the location of occurrence of the key event and store the information in the memory.

[0013] The at least one processor may obtain the user's gaze tracking information for the entire image displayed by the display group, and may obtain the center information based on the shape information and the gaze tracking information and store the information in the memory.

[0014] The above luminance correction information may include a first luminance correction function in which the luminance correction value linearly decreases as the distance from the center increases, and a second luminance correction function in which the luminance correction value nonlinearly decreases as the distance from the center increases.

[0015] The display device may include a plurality of display modules, and each of the plurality of display modules may include a plurality of LED elements.

[0016] A method for controlling an electronic device according to one or more embodiments of the present disclosure includes the steps of: when shape information and overall resolution information of the display group are obtained, obtaining center information to be applied to the display device based on the shape information and the overall resolution information; when position information of the display device is obtained, calculating a degree of separation from the center for each of a plurality of pixels included in the display device based on the position information and the center information; identifying a luminance correction value for each of the plurality of pixels based on the calculated degree of separation from the center and luminance correction information; correcting a luminance value included in an image signal to be provided to the display device based on the luminance correction value to identify a corrected luminance value for each of the plurality of pixels; and providing a corrected image signal including the corrected luminance value to the display device, wherein the luminance correction information may include information on a luminance correction value according to the degree of separation from the center.

[0017] The step of calculating the degree of separation from the center for each of the plurality of pixels is:

[0018] The method may include a step of generating a two-dimensional coordinate system with a location corresponding to the center point of the display group as the origin and a pixel pitch as the unit length based on the shape information and the overall resolution information, a step of identifying the coordinates of each of the plurality of pixels included in the display device within the two-dimensional coordinate system based on the location information of the display device, and a step of calculating the degree of separation from the center for each of the plurality of pixels based on the coordinates of each of the plurality of pixels.

[0019] The step of obtaining center information to be applied to the display device may include, when the display group operates in a multi-view mode displaying multiple images, a step of obtaining position information and resolution information of at least one external display device displaying the same image as the display device within the display group, a step of identifying an overall shape of a display cluster for displaying the image based on the position information and resolution information of the at least one external display device, and a step of obtaining the center information based on the overall shape of the identified display cluster.

[0020] The above luminance correction information includes information on the rate of change of the luminance correction value for each region within the display group, and the control method may include a step of identifying the overall shape of the display group based on the shape information of the display group, a step of identifying the rate of change of the luminance correction value for each region corresponding to the overall shape, and a step of storing information on the rate of change of the luminance correction value for each region identified.

[0021] The above control method includes a step of setting a rate of change in a luminance correction value in a horizontal direction to be smaller than a rate of change in a luminance correction value in a vertical direction when the overall shape of the display group is a rectangle whose horizontal length is longer than its vertical length, and the rate of change in the luminance correction value in the horizontal direction may include information about a change in the luminance correction value of pixels included between the center region and the horizontal edge region of the display group, and the rate of change in the luminance correction value in the vertical direction may include information about a change in the luminance correction value of pixels included between the center region and the vertical edge region of the display group.

[0022] The above luminance correction information includes luminance difference information, and the luminance difference information includes a ratio of a luminance correction value of an edge area of ​​the display group to a luminance correction value of a center area of ​​the display group, and the control method may include, when information on current power consumption of the display group is obtained, a step of comparing the current power consumption with a preset power value, a step of setting the ratio to a preset ratio value or more when the current power consumption is less than the preset power value, and a step of setting the ratio to a value less than the preset ratio value when the current power consumption is greater than the preset power value.

[0023] The step of obtaining center information to be applied to the display device may include obtaining information on the location of occurrence of a key event within the entire image displayed by the display group, and then obtaining the center information based on the shape information and the information on the location of occurrence of the key event.

[0024] The step of obtaining center information to be applied to the display device may include a step of obtaining the center information based on the shape information and the center information based on the gaze tracking information when obtaining the user's gaze tracking information for the entire image displayed by the display group.

[0025] A computer-readable recording medium including a program for executing a control method of an electronic device according to at least one embodiment of the present disclosure, wherein the control method of the electronic device comprises: when shape information and overall resolution information of the display group are obtained, obtaining center information to be applied to the display device based on the shape information and the overall resolution information; when position information of the display device is obtained, calculating a degree of separation from the center for each of a plurality of pixels included in the display device based on the position information and the center information; identifying a luminance correction value for each of the plurality of pixels based on the calculated degree of separation from the center and luminance correction information; correcting a luminance value included in an image signal to be provided to the display device based on the luminance correction value to identify a corrected luminance value for each of the plurality of pixels; and providing a corrected image signal including the corrected luminance value to the display device, wherein the luminance correction information may include information on a luminance correction value according to the degree of separation from the center.

[0026] A display system according to at least one embodiment of the present disclosure comprises a plurality of display devices and a plurality of electronic devices connected to each of the plurality of display devices and providing a video signal corresponding to a position of each of the plurality of display devices to each of the plurality of display devices, wherein each of the plurality of electronic devices comprises:

[0027] When the shape information and the overall resolution information of the display group are obtained, the center information of the display group is obtained based on the shape information and the overall resolution information,

[0028] When position information of each of the plurality of display devices connected to each of the plurality of electronic devices is acquired, a degree of separation from a center is calculated for each of the plurality of pixels included in each of the plurality of display devices based on the position information and the center information, a luminance correction value is identified for each of the plurality of pixels based on the calculated degree of separation from the center and luminance correction information, a luminance value included in an image signal corresponding to a position of each of the plurality of display devices is corrected based on the luminance correction value to identify a corrected luminance value for each of the plurality of pixels, and a corrected image signal including the corrected luminance value is provided to each of the plurality of display devices, wherein the luminance correction information includes information about the luminance correction value according to the degree of separation from the center, and each of the plurality of display devices includes a plurality of display modules, and a PWM signal corresponding to each of the plurality of pixels included in the plurality of display modules is generated based on the corrected image signal received from each of the plurality of electronic devices, and a voltage is applied to the plurality of LED elements included in the plurality of pixels based on the generated PWM signal.

[0029] FIG. 1 is a diagram illustrating the operation of a display system according to one or more embodiments of the present disclosure.

[0030] FIG. 2 is a block diagram illustrating a configuration of an electronic device according to one or more embodiments of the present disclosure.

[0031] FIG. 3 is a diagram illustrating the operation of a display system according to one or more embodiments of the present disclosure.

[0032] FIG. 4 is a diagram illustrating a method for calculating a degree of separation from the center of an electronic device according to one or more embodiments of the present disclosure.

[0033] FIG. 5 is a diagram illustrating a method for obtaining center information of an electronic device according to one or more embodiments of the present disclosure.

[0034] FIG. 6 is a drawing for explaining a method for setting a luminance change rate of an electronic device according to one or more embodiments of the present disclosure.

[0035] FIG. 7 is a drawing for explaining a method for setting a brightness correction function of an electronic device according to one or more embodiments of the present disclosure.

[0036] FIG. 8 is a diagram illustrating a method for obtaining center information of an electronic device according to one or more embodiments of the present disclosure.

[0037] FIG. 9 is a drawing for explaining the configuration of a display device according to one or more embodiments of the present disclosure.

[0038] FIG. 10 is a block diagram illustrating a configuration of a display module according to one or more embodiments of the present disclosure.

[0039] FIG. 11 is a flowchart illustrating a method for providing a corrected image signal of an electronic device according to one or more embodiments of the present disclosure.

[0040] FIG. 12 is a flowchart illustrating a method for luminance correction of an electronic device according to one or more embodiments of the present disclosure.

[0041] The present embodiments may be modified and have various embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the scope to specific embodiments, but should be understood to encompass various modifications, equivalents, and / or alternatives of the embodiments of the present disclosure. In connection with the description of the drawings, similar reference numerals may be used for similar components.

[0042] In describing the present disclosure, if it is determined that a specific description of a related known function or configuration may unnecessarily obscure the gist of the present disclosure, a detailed description thereof will be omitted.

[0043] Additionally, the following embodiments may be modified in various other forms, and the scope of the technical concepts of the present disclosure is not limited to the following embodiments. Rather, these embodiments are provided to further faithfully and completely convey the technical concepts of the present disclosure to those skilled in the art.

[0044] The terminology used in this disclosure is for the purpose of describing specific embodiments only and is not intended to limit the scope of the rights. Singular expressions include plural expressions unless the context clearly dictates otherwise.

[0045] In this disclosure, expressions such as “has,” “can have,” “includes,” or “may include” indicate the presence of a corresponding feature (e.g., a component such as a number, function, operation, or part), and do not exclude the presence of additional features.

[0046] In this disclosure, expressions such as “A or B,” “at least one of A and / or B,” or “one or more of A or / and B” can include all possible combinations of the listed items. For example, “A or B,” “at least one of A and B,” or “at least one of A or B” can all refer to (1) including at least one A, (2) including at least one B, or (3) including both at least one A and at least one B.

[0047] The expressions “first,” “second,” “first,” or “second,” etc., used in this disclosure can describe various components, regardless of order and / or importance, and are only used to distinguish one component from another, but do not limit the components.

[0048] When it is said that a component (e.g., a first component) is “(operatively or communicatively) coupled with / to” or “connected to” another component (e.g., a second component), it should be understood that said component may be directly coupled to said other component, or may be coupled via another component (e.g., a third component).

[0049] On the other hand, when it is said that a component (e.g., a first component) is "directly connected" or "directly connected" to another component (e.g., a second component), it can be understood that no other component (e.g., a third component) exists between said component and said other component.

[0050] The expression "configured to" as used in the present disclosure may be used interchangeably with, for example, "suitable for," "having the capacity to," "designed to," "adapted to," "made to," or "capable of." The term "configured to" may not necessarily mean only "specifically designed to" in terms of hardware.

[0051] Instead, in some contexts, the phrase "a device configured to" may mean that the device, in conjunction with other devices or components, is "capable of" performing A, B, and C. For example, the phrase "a processor configured (or set) to perform A, B, and C" may refer to a dedicated processor (e.g., an embedded processor) for performing those operations, or a general-purpose processor (e.g., a CPU or application processor) that can perform those operations by executing one or more software programs stored in a memory device.

[0052] In the embodiments, a 'module' or 'part' performs at least one function or operation, and may be implemented as hardware or software, or as a combination of hardware and software. Furthermore, a plurality of 'modules' or 'parts' may be integrated into at least one module and implemented as at least one processor, except for a 'module' or 'part' that needs to be implemented as a specific hardware.

[0053] Meanwhile, the various elements and areas in the drawings are schematically drawn. Therefore, the technical concept of the present invention is not limited by the relative sizes or spacing depicted in the attached drawings.

[0054] Hereinafter, with reference to the attached drawings, embodiments according to the present disclosure will be described in detail so that a person having ordinary knowledge in the technical field to which the present disclosure pertains can easily implement the present disclosure.

[0055] FIG. 1 is a diagram illustrating the operation of a display system according to one or more embodiments of the present disclosure.

[0056] According to FIG. 1, the display system may include a display group (200) including a plurality of electronic devices (100-1, 100-2, 100-3, 100-4) and a plurality of display devices (210-1, 210-2, 210-3, 210-4).

[0057] A display group (200) according to one or more embodiments of the present disclosure may include a plurality of display devices (210-1, 210-2, 210-3, 210-4). Each of the plurality of display devices (210-1, 210-2, 210-3, 210-4) may receive an image signal corresponding to a position of each of the plurality of display devices (210-1, 210-2, 210-3, 210-4) and display the received image signal.

[0058] As illustrated in FIG. 1, it is assumed that a display group (200) includes a first display device (210-1), a second display device (210-2), a third display device (210-3), and a fourth display device (210-4), and the first display device (210-1) is located in the upper right area, the second display device (210-2) is located in the upper left area, the third display device (210-3) is located in the lower right area, and the fourth display device (210-4) is located in the lower left area, and the display group (200) displays one image.

[0059] In this case, the first display device (210-1) can display an image by receiving an image signal corresponding to the upper right area among the four-part divided image, the second display device (210-2) can display an image by receiving an image signal corresponding to the upper left area among the four-part divided image, the third display device (210-3) can display an image by receiving an image signal corresponding to the lower right area among the four-part divided image, and the fourth display device (210-4) can display an image by receiving an image signal corresponding to the lower left area.

[0060] Each of the plurality of display devices (210-1, 210-2, 210-3, 210-4) according to one or more embodiments of the present disclosure can receive a corrected image signal from each of the plurality of electronic devices (100-1, 100-2, 100-3, 100-4) connected to each of the plurality of display devices (210-1, 210-2, 210-3, 210-4).

[0061] In the present disclosure, a "corrected image signal" may mean an image signal including a corrected luminance value. Specifically, each of the plurality of electronic devices (100-1, 100-2, 100-3, 100-4) may generate a "corrected image signal" by correcting luminance data included in an original image signal based on center information and luminance correction information to be applied to each of the plurality of display devices (210-1, 210-2, 210-3, 210-4). A specific method by which each of the plurality of electronic devices (100-1, 100-2, 100-3, 100-4) generates a corrected image signal will be described in detail in the description of FIGS. 3 to 8 below.

[0062] Each of the plurality of display devices (210-1, 210-2, 210-3, 210-4) displays an image based on a corrected image signal, thereby displaying an image with a luminance value that is the same as / similar to the luminance value of the original image in the center of the display group (200) while displaying an image with a luminance value that is relatively lower than the luminance value of the original image in the edge area of ​​the display group (200).

[0063] Additionally, the display group (200) may be referred to by various expressions representing the same or similar concepts. For example, it may be referred to by various expressions such as "digital signage device," "modular display device," "signage system," and "modular display system." However, in the present disclosure, the term "display group (200)" will be used interchangeably.

[0064] Additionally, each of the plurality of display devices (210-1, 210-2, 210-3, 210-4) may be referred to by various expressions representing the same or similar concepts. For example, the display device may be referred to by the expression "display cabinet." However, in the present disclosure, the terms "display device" will be used interchangeably.

[0065] In the present disclosure, the "edge area of ​​the display group (200)" may mean an area of ​​pixels existing at the edge of the display group (200). For example, if the display group (200) is a display with a resolution of 8K (7680 x 4320 pixels), the "edge area of ​​the display group (200)" may include an area where 7680 pixels are adjacent to a horizontal bezel located at the top of the display, 7680 pixels are adjacent to a horizontal bezel located at the bottom of the display, 4320 pixels are adjacent to a vertical bezel located at the left side of the display, and 4320 pixels are adjacent to a vertical bezel located at the right side of the display.

[0066] Additionally, the term "edge area" may be replaced with various expressions representing the same or similar concepts. For example, it may be replaced with various expressions such as "edge area," "corner pixel area," "edge pixel area," "border area," and "outer area." However, in the present disclosure, the term "edge area" will be used interchangeably.

[0067] Although FIG. 1 illustrates that the display group (200) includes only 2 x 2 display devices, this is only one example, and the display group (200) may include n x m display devices (n and m are natural numbers greater than or equal to 2). In addition, although FIG. 1 illustrates only four electronic devices (100-1, 100-2, 100-3, 100-4) connected to four display devices, this is only one example, and the display group (200) may be implemented with n x m electronic devices (n and m are natural numbers greater than or equal to 2).

[0068] In Fig. 1, the display group (200) is illustrated in a rectangular shape, but this is only one example, and it is obvious that the display group (200) can be implemented in various shapes, such as a diamond, a square, a curved shape, etc., depending on the shape and arrangement of the display devices included in the display group (200).

[0069] As described above, each of the plurality of electronic devices (100-1, 100-2, 100-3, 100-4) provides a corrected image signal so that the display group (200) displays an image by correcting the brightness value to a smaller value than the brightness value of the original image in an area where the distance from the center is large, thereby reducing the power consumption of the display group (200) while preventing the user from perceiving a difference from the original image. In the description of FIG. 2 described below, various embodiments of the present disclosure will be described together with the configuration of each of the plurality of electronic devices (100-1, 100-2, 100-3, 100-4) according to the present disclosure.

[0070] In the following description, for convenience of explanation, “first electronic device (100-1)” is collectively referred to as “electronic device (100-1)” and “first display device (210-1)” is collectively referred to as “display device (210-1)”.

[0071] FIG. 2 is a block diagram illustrating a configuration of an electronic device according to one or more embodiments of the present disclosure.

[0072] According to FIG. 2, the electronic device (100-1) may include a memory (110), an interface (120), and at least one processor (130).

[0073] The memory (110) can store data necessary for implementing various embodiments of the electronic device (100-1) according to one or more embodiments of the present disclosure. The memory (110) can store center information to be applied to the display device (210-1) and brightness correction information according to the degree of separation from the center.

[0074] The memory (110) may be implemented in the form of memory embedded in the electronic device (100-1) or may be implemented in the form of memory that can be detached from the electronic device (100-1) depending on the purpose of data storage. For example, data for driving the electronic device (100-1) may be stored in a memory embedded in the electronic device (100-1), and data for expanding the functions of the electronic device (100-1) may be stored in a memory that can be detached from the electronic device (100-1).

[0075] Meanwhile, in the case of memory embedded in the electronic device (100-1), it may be implemented as at least one of volatile memory (e.g., dynamic RAM (DRAM), static RAM (SRAM), or synchronous dynamic RAM (SDRAM)), non-volatile memory (e.g., one time programmable ROM (OTPROM), programmable ROM (PROM), erasable and programmable ROM (EPROM), electrically erasable and programmable ROM (EEPROM), mask ROM, flash ROM, flash memory (e.g., NAND flash or NOR flash), hard drive, or solid state drive (SSD)).

[0076] In addition, in the case of a memory that can be attached or detached to an electronic device (100-1), it can be implemented in the form of a memory card (e.g., CF (compact flash), SD (secure digital), Micro-SD (micro secure digital), Mini-SD (mini secure digital), xD (extreme digital), MMC (multi-media card), etc.), an external memory that can be connected to a USB port (e.g., USB memory), etc.

[0077] The memory (110) may include various instructions necessary for the operation of at least one processor (130). Here, the instructions may include instructions for performing acquisition of center information, instructions for performing calculation of the degree of separation from the center, instructions for performing identification of a brightness correction value, instructions for performing generation of a two-dimensional coordinate system, etc.

[0078] In the present disclosure, "center information" may mean information about the location of an area where an image is displayed with a luminance value that is the same as / similar to the luminance value of the original image. For example, if the display group (200) is a display group with a resolution of 8K (7680 x 4320 pixels), the "center information" may include information about the location corresponding to the pixel located at the 3840th from the left and the 2160th from the bottom. As another example, if the display group (200) operates in a multi-view mode that displays multiple images, the "center information" may include information about the location of a pixel corresponding to the center point of each of the multiple images displayed by the display group (200).

[0079] Additionally, the term "central information" may be replaced with various expressions representing the same or similar concept. For example, it may be replaced with various expressions such as "central part," "information about the central region," "central point information," and "central information." However, in this disclosure, the term "central information" will be used interchangeably.

[0080] In the present disclosure, "luminance correction information" may mean information about a luminance correction value that changes depending on the degree of separation from the center of the display group (200). For example, the "luminance correction information" may include information that the luminance correction value linearly decreases as the degree of separation from the center increases. As another example, the "luminance correction information" may include information that the luminance correction value maintains a constant value until the degree of separation from the center exceeds a threshold, and then non-linearly decreases the luminance correction value when the degree of separation from the center exceeds the threshold.

[0081] Additionally, "luminance correction information" may be referred to by various expressions representing the same or similar concepts. For example, it may be replaced by various expressions such as "brightness correction data," "luminance correction information," "luminance adjustment information," and "pixel value correction information." However, in the present disclosure, the expression "luminance correction information" will be used interchangeably.

[0082] The interface (120) may include a communication interface, an operation interface, and an input / output interface. The electronic device (100-1) may be connected to the display device (210-1) through the interface (120).

[0083] According to one or more embodiments, the communication interface is a configuration for performing communication with the display device (210-1) or an external source device. The communication interface may include at least one wireless communication module, at least one wired communication module, etc. Each communication module may be implemented in the form of at least one hardware chip. The wireless communication module may include at least one module among a Wi-Fi module, a Bluetooth module, an infrared communication module, or other communication modules. In addition, the communication interface may include at least one communication chip that performs communication according to various wireless communication standards such as Zigbee, 3G (3rd Generation), 3GPP (3rd Generation Partnership Project), LTE (Long Term Evolution), LTE-A (LTE Advanced), 4G (4th Generation), 5G (5th Generation), etc. The wired communication module may include, for example, at least one among a LAN (Local Area Network) module, an Ethernet module, a pair cable, a coaxial cable, a fiber optic cable, or a UWB (Ultra Wide-Band) module. The communication interface can be implemented in various forms in this way to communicate with an external display device or an external source device, thereby providing a corrected image signal to the external display device.

[0084] The operation interface is a configuration for receiving user operation input. The operation interface may include various buttons provided on the main body of the electronic device (100-1).

[0085] The input / output interface is a configuration for inputting and outputting various external signals. The input / output interface can be connected to various external memories or external sources (e.g., web servers, user terminal devices, etc.) and can input various data. The input / output interface can be implemented as at least one interface among HDMI (High Definition Multimedia Interface), MHL (Mobile High-Definition Link), USB (Universal Serial Bus), USB C-type, DP (Display Port), Thunderbolt, VGA (Video Graphics Array) port, RGB port, D-SUB (Dsubminiature), and DVI (Digital Visual Interface). At least some of the input / output interfaces may be connected to communication interfaces. For example, the input / output interface can transmit information received from an external source device to the communication interface or transmit information received through the communication interface to an external display device.

[0086] At least one processor (130) controls the overall operation of the electronic device (100-1). Specifically, at least one processor (130) is connected to the memory (110) and the interface (120), and can control the overall operation of the electronic device (100-1) by executing at least one instruction stored in the memory (110).

[0087] At least one processor (130) may be implemented as a digital signal processor (DSP) that processes digital signals, a microprocessor, but is not limited thereto, and may include one or more of a central processing unit (CPU), a microcontroller unit (MCU), a microprocessing unit (MPU), a controller, an application processor (AP), a communication processor (CP), an ARM processor, and an artificial intelligence (AI) processor, or may be defined by the relevant terms. In addition, the processor (130) may be implemented as a system on chip (SoC) having a built-in processing algorithm, a large scale integration (LSI), or may be implemented in the form of a field programmable gate array (FPGA). At least one processor (130) may perform various functions by executing computer executable instructions stored in a memory (110).

[0088] When a method according to various embodiments of the present disclosure includes multiple operations, the multiple operations may be performed by one processor or by multiple processors. At least one processor (130) may be implemented as a single core processor including one core, or may be implemented as one or more multicore processors including multiple cores (e.g., homogeneous multicores or heterogeneous multicores). Hereinafter, for convenience of explanation, at least one processor (130) will be referred to as a processor (130).

[0089] The processor (130) can correct an image signal to be provided to the display device (210-1) based on center information and brightness correction information, and provide the corrected image signal to the display device (210-1) through the interface (120).

[0090] The processor (130) provides a brightness-corrected image signal to the display device (210-1) based on the position of the center of the display group (200) and brightness correction information, thereby providing a brightness-corrected image signal according to the degree of separation from the center regardless of the number of display devices included in the display group (200) and the shape of the display group (200).

[0091] The description of FIG. 3 described below will describe in detail how the electronic device (100-1) provides a corrected image signal to the display device (210-1).

[0092] FIG. 3 is a diagram illustrating the operation of a display system according to one or more embodiments of the present disclosure.

[0093] According to FIG. 3, a plurality of electronic devices (100-1, 100-2, 100-3, 100-4,…, 100-n) can receive original image signals from an external source device (300) and provide corrected image signals to a plurality of display devices (210-1, 210-2, 210-3, 210-4,…, 210-n) included in a display group (200).

[0094] The method by which each of the plurality of electronic devices (100-1, 100-2, 100-3, 100-4, …, 100-n) provides a corrected image signal to each of the plurality of display devices (210-1, 210-2, 210-3, 210-4, …, 210-n) is the same, and for convenience of explanation, the following description will be based on the method by which the electronic device (100-1) provides a corrected image signal to the display device (210-1).

[0095] The electronic device (100-1) can obtain shape information of the display group (200), overall resolution information, and location information of the display device (210-1) from an external source device (300).

[0096] Here, “shape information of the display group (200)” may include information on the number of display devices included in the display group (200), information on which shape the shape of the display group (200) corresponds to, etc.

[0097] Here, “full resolution information of the display group (200)” may include information on the number of pixels included in the display group (200), pixel pitch, and arrangement status of the pixels.

[0098] Here, the “position information of the display device (210-1)” may include information about the position of the display device (210-1) within the display group (200). For example, returning to FIG. 1, the “position information of the display device (210-1)” may include information about the upper left position of the display group (200).

[0099] An external source device (300) can store software that manages and controls a display group (200). The external source device (300) can receive information about a plurality of display devices (210-1, 210-2, 210-3, 210-4, ..., 210-n) from a plurality of electronic devices (100-1, 100-2, 100-3, 100-4, ..., 100-n), and the external source device (300) can identify the shape of the display group (200), the overall resolution, and the position of the display device (210-1) using the software that manages the display group (200). The external source device (300) can provide the shape information of the identified display group (200), the overall resolution information, and the position information of the display device (210-1) to the electronic device (100-1).

[0100] When the shape information and overall resolution information of the display group (200) are acquired, the electronic device (100-1) can acquire center information based on the shape information and overall resolution information of the display group (200) and store the center information in the memory (110).

[0101] According to one or more embodiments, the electronic device (100-1) can identify that the display group (200) has a rectangular shape composed of four display devices based on shape information of the display group (200). Additionally, the electronic device (100-1) can identify that the display group (200) has a resolution of 7680 x 4320 and a pixel pitch of 0.2 mm based on overall resolution information of the display group (200).

[0102] In this case, the electronic device (100-1) can arrange squares having a width / height of 0.2 mm in the form of 7680 x 4320 to create a rectangle having a width of 7680 x 0.2 mm (1536 mm) and a height of 4320 x 0.2 mm (864 mm). The electronic device (100-1) can identify a point existing at a width of 768 mm and a height of 432 mm within the rectangle as the center of the display group (200). The electronic device (100-1) can store information about the location of the center in the memory (110) as center information to be applied to the display device (210-1).

[0103] When the electronic device (100-1) obtains the location information of the display device (210-1), the electronic device (100-1) can calculate the degree of separation from the center for each of the plurality of pixels included in the display device (210-1) based on the location information and center information.

[0104] According to one or more embodiments, the electronic device (100-1) can identify the position of the display device (210-1) connected to the electronic device (100-1) within the display group (200) based on the acquired position information. Returning to FIG. 1, if the display group (200) is composed of four display devices, the position information of the display device (210-1) can correspond to information indicating an upper left position. In this case, the electronic device (100-1) can identify that the display device (210-1) is a display device located at the upper left of the display group (200).

[0105] Specifically, the electronic device (100-1) can identify, based on the location information, that the display group (200) is composed of four display devices and has a resolution of 7680 x 4320, and that the display device (210-1) is located at the upper left of the display group (200). In this case, the electronic device (100-1) can identify that the 3840 x 2160 pixels existing at the upper left are pixels included in the display device (210-1). In this case, the electronic device (100-1) can calculate the degree of separation from the center for each of the 3840 x 2160 pixels included in the display device (210-1) existing at the upper left based on the center information.

[0106] According to one or more embodiments, the electronic device (100-1) can calculate the distance from the center in mm for each of a plurality of pixels included in the display device (210-1). For example, the electronic device (100-1) can calculate the distance from the center as 30 mm for a specific pixel included in the display device (210-1).

[0107] According to one or more embodiments, the electronic device (100-1) may calculate, for each of a plurality of pixels included in the display device (210-1), a horizontal distance from the center and a vertical distance from the center, respectively. For example, the electronic device (100-1) may identify, for a specific pixel included in the display device (210-1), a horizontal distance from the center as 15 mm and a vertical distance from the center as 10 mm.

[0108] According to one or more embodiments, the electronic device (100-1) may calculate the degree of separation from the center for each of a plurality of pixels included in the display device (210-1) on a pixel-by-pixel basis. For example, the electronic device (100-1) may identify the degree of horizontal separation from the center for a specific pixel included in the display device (210-1) as 130 pixels and the degree of vertical separation from the center as 150 pixels.

[0109] The electronic device (100-1) can identify a luminance correction value for each of a plurality of pixels included in the display device (210-1) based on the calculated degree of separation from the center and luminance correction information. In addition, the electronic device (100-1) can correct a luminance value included in an image signal to be provided to the display device (210-1) based on the luminance correction value, thereby identifying a corrected luminance value for each of the plurality of pixels. The electronic device (100-1) can provide a corrected image signal including the corrected luminance value to the display device (210-1) through the interface (120).

[0110] In FIG. 3, the external source device (300) is illustrated as a desktop PC, but this is only one example, and the external source device (300) can be implemented as various electronic devices capable of providing original video signals to electronic devices (100-1), such as smartphones, laptop PCs, tablet PCs, and server devices.

[0111] Although the above description only explains that the electronic device (100-1) can identify the degree of separation from the center for each of the plurality of pixels included in the display device (210-1) in units of mm or pixels, the electronic device (100-1) can also calculate the degree of separation from the center by normalizing the distance identified in units of mm or pixels to a value between 0 and 1.

[0112] According to one or more embodiments, the electronic device (100-1) may calculate the degree of separation from the center based on a maximum-minimum normalization method. Specifically, the electronic device (100-1) may normalize the degree of separation from the center of the pixel closest to the center to 0, and the degree of separation from the center of the pixel farthest from the center to 1.

[0113] The above-described maximum-minimum normalization method is only one example, and the electronic device (100-1) can of course calculate the degree of deviation from the center for each of a plurality of pixels based on various normalization methods.

[0114] The description of FIG. 4 described below will explain how the electronic device (100-1) sets a two-dimensional coordinate system within the display group (200) to calculate the degree of separation from the center for each of a plurality of pixels.

[0115] FIG. 4 is a diagram illustrating a method for calculating a degree of separation from the center of an electronic device according to one or more embodiments of the present disclosure.

[0116] According to FIG. 4, the electronic device (100-1) can generate a two-dimensional coordinate system corresponding to the shape of the display group (200) and identify the coordinate values ​​of each of the plurality of pixels included in the display device (210-1).

[0117] The electronic device (100-1) can generate a two-dimensional coordinate system with a location corresponding to the center point of the display group (200) as the origin and a pixel pitch as the unit length based on the shape information and the overall resolution information of the display group (200).

[0118] According to one or more embodiments, as illustrated in FIG. 4, the shape information of the display group (200) may correspond to information that four display devices are arranged in a rectangular shape, and the overall resolution information of the display group (200) may correspond to information that the display group (200) has a resolution of 7680 x 4320 and a pixel pitch of 0.2 mm. In this case, the electronic device (100-1) may generate a two-dimensional coordinate system with a position corresponding to a pixel that is 3840th to the right and 2160th downward from the upper left corner point of the display group (200) as the origin and with 0.2 mm as the unit length.

[0119] The electronic device (100-1) can identify the coordinates of each of a plurality of pixels included in the display device (210-1) within a two-dimensional coordinate system based on the position information of the display device (210-1).

[0120] According to one or more embodiments, as illustrated in FIG. 4, the overall shape of the display group (200) may be a rectangular shape and may include a total of 7680 x 4320 pixels. At this time, the position information of the display device (210-1) may correspond to information that the display device (210-1) is located at the upper left of the display group (200). Based on the position information, the electronic device (100-1) may identify that the 3840 x 2160 pixels located at the upper left are a plurality of pixels included in the display device (210-1), and the electronic device (100-1) may identify the coordinates of each of the 3840 x 2160 pixels included in the display device (210-1).

[0121] In this case, the electronic device (100-1) can identify the pixel (410) at the upper left corner of the display device (210-1) as a pixel having a coordinate value of (-3840, 2160) since it is a pixel that has moved 3840 pixels in the left direction and 2160 pixels in the upward direction from the center point.

[0122] The electronic device (100-1) can calculate the degree of separation from the center for each of the plurality of pixels based on the coordinates of each of the plurality of pixels.

[0123] According to one or more embodiments, the electronic device (100-1) may calculate the distance between the coordinates of each of the plurality of pixels and the coordinates of the origin to calculate the degree of separation from the center for each of the plurality of pixels. For example, the electronic device (100-1) may calculate the distance from the center of the upper left corner pixel (410) of the display device (210-1) as approximately 4405 based on the coordinate values ​​(-3840, 2160) of the upper left corner pixel and the coordinate values ​​(0, 0) of the origin. The electronic device (100-1) may calculate the degree of separation from the center for each of the plurality of pixels by normalizing the distance from the center of each of the plurality of pixels so that the degree of separation from the center of the pixel that is furthest from the center is set to 1 when the distance from the center is 4405.

[0124] According to one or more embodiments, the electronic device (100-1) may calculate the horizontal distance and the vertical distance between the coordinates of each of the plurality of pixels and the coordinates of the origin, respectively, to calculate the degree of separation from the center for each of the plurality of pixels. For example, the electronic device (100-1) may calculate the horizontal distance from the center of the upper left corner point pixel (410) as 3840 and the vertical distance as 2160 based on the coordinate values ​​(-3840, 2160) of the upper left corner point pixel and the coordinate values ​​(0,0) of the origin.

[0125] In this case, the electronic device (100-1) can calculate the horizontal distance from the center for each of the plurality of pixels by normalizing the horizontal distance from the center of each of the plurality of pixels so that the horizontal distance from the center of a pixel having a horizontal distance of 3840 is set to 1 and the horizontal distance from the center of a pixel having a horizontal distance of 0 is set to 0.

[0126] Additionally, the electronic device (100-1) can calculate the vertical distance from the center for each of the plurality of pixels by normalizing the vertical distance from the center of each of the plurality of pixels so that the vertical distance from the center of a pixel having a vertical distance of 2160 is set to 1 and the vertical distance from the center of a pixel having a vertical distance of 0 is set to 0.

[0127] As described above, the electronic device (100-1) can generate a two-dimensional coordinate system corresponding to the shape of the display group (200) and identify the degree of separation from the center for each of the plurality of pixels included in the display device (210-1) based on the two-dimensional coordinate system. Accordingly, the electronic device (100-1) can generate a two-dimensional coordinate system corresponding to the shape of the display group (200) regardless of the type of display implemented by the display group (200) and can quickly identify the degree of separation from the center for each of the plurality of pixels based on the generated coordinate system.

[0128] The description of FIG. 5 below will describe in detail how the electronic device (100-1) acquires center information.

[0129] FIG. 5 is a diagram illustrating a method for obtaining center information of an electronic device according to one or more embodiments of the present disclosure.

[0130] According to FIG. 5, the electronic device (100-1) can provide a corrected image signal to the display device (210-1) even when the display group (200) operates in a multi-view mode displaying multiple images.

[0131] As shown in FIG. 5, let us assume a situation in which a display group (200) displays two images, four display devices (210-1, 210-2, 210-5, 210-4) display a first image, and two display devices (210-5, 210-6) display a second image.

[0132] When the display group (200) operates in a multi-view mode displaying multiple images, the electronic device (100-1) can obtain location information and resolution information of at least one external display device (210-2, 210-3, 210-4) displaying the same image as the display device (210-1) within the display group (200).

[0133] According to one or more embodiments, the external source device (300) can identify at least one external display device (210-2, 210-3, 210-4) that displays the same image as the display device (210-1), and can obtain location information and resolution information of the at least one external display device (210-2, 210-3, 210-4). In this case, the external source device (300) can provide the obtained location information and resolution information to the electronic device (100-1).

[0134] Here, the position information and resolution information of at least one external display device (210-2, 210-3, 210-4) may include information about where the at least one external display device (210-2, 210-3, 210-4) is positioned within the display group (200) and information about how a plurality of pixels included in the at least one external display device (210-2, 210-3, 210-4) are arranged.

[0135] Specifically, the position information of at least one external display device (210-2, 210-3, 210-4) may correspond to information that each of the at least one external display device (210-2, 210-3, 210-4) is located to the right, below, and right-bottom of the display device (210-1). The resolution information of the at least one external display device (210-2, 210-3, 210-4) may correspond to information that each of the at least one external display device (210-2, 210-3, 210-4) includes a plurality of pixels arranged in 3840 x 2160 and has a pixel pitch of 0.02 mm.

[0136] The electronic device (100-1) can identify the entire shape of a display cluster for displaying the same image based on position information and resolution information of at least one external display device (210-2, 210-3, 210-4).

[0137] Here, the term "display set" may refer to a set of display devices that display the same image. For example, as illustrated in FIG. 5, a plurality of display devices (210-1, 210-2, 210-3, 210-4) that display the same first image may constitute the first display set. Furthermore, the term "display set" may be replaced with various expressions that represent the same / similar concepts. For example, the term "display group" may be replaced with various expressions such as "display group" or "display group." However, in the present disclosure, the term "display set" will be used interchangeably.

[0138] According to one or more embodiments, the electronic device (100-1) can obtain information about what shape the first display set (510) corresponds to and how the plurality of pixels included in the first display set (510) are arranged based on position information and resolution information of at least one external display device (210-2, 210-3, 210-4).

[0139] Specifically, the electronic device (100-1) can identify that the first display set (510) has a rectangular shape composed of four display devices based on information that each of at least one external display device (210-2, 210-3, 210-4) is positioned in the right direction, the downward direction, and the right diagonally downward direction of the display device (210-1). In addition, the electronic device (100-1) can identify that the plurality of pixels included in the first display set (510) are arranged in the form of 7680 x 4320 based on information that each of the at least one external display device (210-2, 210-3, 210-4) includes a plurality of pixels arranged in 3840 x 2160 and has a pixel pitch of 0.02 mm.

[0140] In this case, the electronic device (100-1) can identify that the overall shape of the first display set (510) is a rectangle having a horizontal length of 7680 x 0.2 mm (1536 mm) and a vertical length of 4320 x 0.2 mm (864 mm).

[0141] According to one or more embodiments, a fifth electronic device (100-5) connected to a fifth display device (210-5) or a sixth electronic device (100-6) connected to a sixth display device (210-6) may also identify the overall shape of a second display set (520) displaying a second image based on the same method as described above.

[0142] The electronic device (100-1) can obtain center information to be applied to the display device (210-1) based on the overall shape of the identified display set, and store the obtained center information in the memory (110).

[0143] According to one or more embodiments, the electronic device (100-1) may obtain first center (530) information by identifying a first center (530) of the first display set (510) based on the overall shape of the identified first display set (510). Specifically, the electronic device (100-1) may identify a center point of a rectangle having a horizontal length of 1536 mm and a vertical length of 864 mm, and may identify information about the location of the identified center point as center information and store the information in the memory (110).

[0144] According to one or more embodiments, a fifth electronic device (100-5) connected to a fifth display device (210-5) or a sixth electronic device (100-6) connected to a sixth display device (210-6) may also identify a second center (540) based on the overall shape of a second display set (520) displaying a second image based on the same method as described above.

[0145] The method by which the electronic device (100-1) obtains center information based on the overall shape has been described in detail in the description of FIGS. 3 and 4, and thus a description thereof will be omitted.

[0146] As described above, even when the display group (200) operates in a multi-view mode, the display system according to the present disclosure can identify a set of displays that each display a plurality of images and obtain center information for each of the plurality of display sets. Accordingly, the display system according to the present disclosure can achieve the effect of reducing power consumption even in a multi-view mode while preventing the user from perceiving a difference from the original image by calculating the degree of deviation from the center for each of the plurality of display sets and correcting the brightness for each of the plurality of display sets.

[0147] In the description of FIG. 6 described below, a method for setting a brightness correction value for an image to be displayed in a display group (200) will be described.

[0148] FIG. 6 is a drawing for explaining a method for setting a luminance change rate of an electronic device according to one or more embodiments of the present disclosure.

[0149] According to FIG. 6, the display group (200) can be implemented in the form of a rectangle whose horizontal direction is longer than its vertical direction.

[0150] According to one or more embodiments, the luminance correction information may include information on the rate of change of the luminance correction value for each region within the display group (200), and the electronic device (100-1) may identify the rate of change of the luminance correction value for each region corresponding to the overall shape of the display group (200).

[0151] In the present disclosure, a "luminance correction value" may mean a correction value to be applied to a luminance value included in an original video signal. For example, assume that the original video signal includes luminance data in which the luminance value for a first pixel is "(R, G, B) = (210, 100, 50)" and the luminance value for a second pixel is "(R, G, B) = (250, 120, 160)". At this time, if the electronic device (100-1) identifies the luminance correction value for the first pixel as 90% and the luminance correction value for the second pixel as 80%, the luminance correction value of 90% may be applied to the luminance value of the first pixel included in the original video signal, and the luminance correction value of 80% may be applied to the luminance value of the second pixel. As a result, the electronic device (100-1) provides the image signal to which the luminance correction value is applied to the display device (210-1), so that the display device (210-1) can display an image with a luminance value of "(R, G, B) = (189, 90, 45)" for the first pixel and display an image with a luminance value of "(R, G, B) = (200, 96, 128)" for the second pixel.

[0152] According to one or more embodiments, the electronic device (100-1) may define luminance correction information such that a luminance correction value of 100% is applied to pixels corresponding to a center area of ​​the display group (200), and a luminance correction value of 80% is applied to pixels corresponding to an edge area of ​​the display group (200).

[0153] According to one or more embodiments, the luminance compensation information may include information to lower the luminance compensation value by 1% for every 10 pixels moved horizontally from the center (600) of the display group (200) and to lower the luminance compensation value by 1% for every 4 pixels moved vertically.

[0154] According to one or more embodiments, the luminance compensation information may include information to lower the luminance compensation value by 1% for each 10 cm diagonal movement from the center (600) of the display group (200).

[0155] The electronic device (100-1) can identify the overall shape of the display group (200) based on the shape information of the display group (200), identify the rate of change of the luminance correction value for each region corresponding to the overall shape of the display group (200), and store information on the rate of change of the luminance correction value for each region identified in the memory (110).

[0156] According to one or more embodiments, when the overall shape of the display group (200) is a square, the electronic device (100-1) can identify a rate of change in a luminance correction value for each area corresponding to the square.

[0157] When the overall shape of the display group (200) is a square with a length / width of 80 cm, the electronic device (100-1) can obtain a plurality of concentric squares with the center of the display group (200) as the center point of the square.

[0158] In this case, the plurality of concentric squares may include a square with a length / width of 1 cm, a square with a length / width of 2 cm, a square with a length / width of 3 cm, a square with a length / width of 80 cm, etc. The electronic device (100-1) may apply a luminance correction value of 100% to a plurality of pixels existing inside a square with a length / width of 1 cm, and may apply a luminance correction value of 99% to a plurality of pixels existing outside a square with a length / width of 1 cm and inside a square with a length / width of 2 cm. Similarly, the electronic device (100-1) may apply a luminance correction value of 98% to a plurality of pixels existing outside a square with a length / width of 2 cm and inside a square with a length / width of 3 cm.

[0159] In other words, the electronic device (100-1) can obtain a plurality of concentric polygons corresponding to the overall shape of the display group (200) with the center of the display group (200) as the center point, and divide the display group (200) into a plurality of regions based on the obtained plurality of concentric polygons. The electronic device (100-1) can identify a rate of change in the luminance correction value for each region so that a smaller luminance correction value is applied to pixels existing in a region with a greater degree of separation from the center.

[0160] As illustrated in Fig. 6, let us assume that the overall shape of the display group (200) is a rectangle with a width:length ratio of 8:3. The electronic device (100-1) can obtain a plurality of concentric rectangles having a width-length:length ratio of 8:3 and a center point of the center (600) of the display group (200). Based on the obtained plurality of concentric rectangles, the electronic device (100-1) can divide the display group (200) into a plurality of regions and apply different brightness correction values ​​to each of the divided plurality of regions.

[0161] According to one or more embodiments, when the overall shape of the display group (200) is a rectangle whose horizontal length is longer than its vertical length, the electronic device (100-1) can set the rate of change of the luminance correction value in the horizontal direction to be smaller than the rate of change of the luminance correction value in the vertical direction.

[0162] Here, the rate of change of the luminance correction value in the horizontal direction may include information about the change of the luminance correction value of pixels included between the center region and the horizontal edge region of the display group (200), and the rate of change of the luminance correction value in the vertical direction may include information about the change of the luminance correction value of pixels included between the center region and the vertical edge region of the display group (200).

[0163] According to one or more embodiments, the luminance correction information may include luminance difference information. "Luminance difference information" may mean a ratio of a luminance correction value of an edge area of ​​the display group (200) to a luminance correction value of a center area of ​​the display group (200).

[0164] As described above, when the electronic device (100-1) is set to apply a luminance correction value of 100% to a pixel corresponding to a center area of ​​the display group (200) and to apply a luminance correction value of 80% to a pixel corresponding to an edge area of ​​the display group (200), the luminance difference information can be set to 0.8 (80 / 100).

[0165] As described above, the electronic device (100-1) can set a rate of change in the luminance correction value by identifying a luminance correction value corresponding to the overall shape of the display group (200), rather than simply setting a luminance correction value for each of the plurality of pixels included in the display device (210-1) based on the degree of separation from the center.

[0166] According to one or more embodiments, when the overall shape of the display group (200) is a rectangle whose horizontal length is longer than its vertical length as illustrated in FIG. 6, the distance between the center (600) and the vertical edge area may be small, while the distance between the center (600) and the horizontal edge area may be large. In this case, the electronic device (100-1) may set the rate of change of the luminance correction value in the vertical direction to be greater than the rate of change of the luminance correction value in the horizontal direction so that the same luminance correction value may be applied to pixels included in the edge area of ​​the display group (200).

[0167] Specifically, if the electronic device (100-1) sets the luminance compensation value simply based on the degree of separation from the center, a luminance compensation value of 90% may be applied to a vertical edge area that is close to the center area, while a luminance compensation value of 80% may be applied to a horizontal edge area. On the other hand, if the electronic device (100-1) sets a larger rate of change in the luminance compensation value in the vertical direction, a luminance compensation value of 80% may be applied to both the vertical edge area and the horizontal edge area, thereby achieving the effect of reducing power consumption.

[0168] According to one or more embodiments, when the overall shape of the display group (200) is a rectangle in which the vertical direction is longer than the horizontal direction, the electronic device (100-1) may set the rate of change of the horizontal direction luminance correction value to be greater than the rate of change of the vertical direction luminance correction value so that the same luminance correction value is applied to a plurality of pixels included in the horizontal direction edge area and the vertical direction edge area of ​​the display group (200).

[0169] According to one or more embodiments, as shown in FIG. 6, it is assumed that the display group (200) has a resolution of 11520 x 4320, a luminance correction value of 100% is applied to the center area, and a luminance correction value of 80% is applied to both the horizontal edge area and the vertical edge area. In this case, the rate of change of the luminance correction value in the horizontal direction may be set to include information that the average rate of change of the luminance correction value in the vertical direction is about 0.003 (20 / 5760), and the rate of change of the luminance correction value in the vertical direction may be set to include information that the average rate of change of the luminance correction value is about 0.009 (20 / 2160).

[0170] In the above description, only the case where the entire shape of the display group (200) is implemented as a rectangle is described as an example, but this is only one example, and even if the rectangle is tilted at a certain angle and implemented as a rhombus shape, the electronic device (100-1) can of course set the rate of change of the brightness correction value corresponding to the shape.

[0171] In the above description, only the case where the display group (200) displays only one image has been described as an example, but this is only for convenience of explanation, and it is of course possible to set the rate of change of the brightness correction value in various ways based on the shape of the display set even when the display group (200) operates in multi-view mode as described in FIG. 5.

[0172] As described above, the electronic device (100-1) can set the rate of change of the luminance correction value to correspond to the overall shape of the display group (200). Accordingly, the electronic device (100-1) can identify the rate of change of the luminance correction value corresponding to the overall shape of the display group (200) and provide a corrected image signal, regardless of the shape in which the overall shape of the display group (200) is implemented.

[0173] In the description of FIG. 7 described below, a method for the electronic device (100-1) to set various brightness correction values ​​according to the degree of separation from the center will be described.

[0174] FIG. 7 is a drawing for explaining a method for setting a brightness correction function of an electronic device according to one or more embodiments of the present disclosure.

[0175] According to FIG. 7, the luminance correction information may include a first luminance correction function (710) in which the luminance correction value linearly decreases as the distance from the center increases, and a second luminance correction function (720) in which the luminance correction value nonlinearly decreases as the distance from the center increases.

[0176] According to one or more embodiments, the electronic device (100-1) can identify a luminance correction value for each of a plurality of pixels included in the display device (210-1) based on the first luminance correction function (710) or the second luminance correction function (720). Specifically, the electronic device (100-1) can calculate a degree of separation from the center for each of the plurality of pixels included in the display device (210-1), and input the degree of separation from the center for each of the plurality of pixels into the first luminance correction function (710) or the second luminance correction function (720), thereby identifying a luminance correction value for each of the plurality of pixels.

[0177] The electronic device (100-1) can not only set the form of the luminance correction function in various ways, but can also set the luminance difference information in various ways. As illustrated in FIG. 7, the first luminance correction function (710) may be a luminance correction function when the luminance difference information is set to 85%, and the second luminance correction function (720) may be a luminance correction function when the luminance difference information is set to 75%.

[0178] The electronic device (100-1) can obtain information on the current power consumption of the display group (200) and set the ratio of the brightness correction value of the edge area to the brightness correction value of the center area in various ways based on the current power consumption.

[0179] According to one or more embodiments, when information about the current power consumption of the display group (200) is obtained, the electronic device (100-1) can compare the current power consumption with a preset power value.

[0180] According to one or more embodiments, the electronic device (100-1) may set a ratio of a luminance correction value of an edge area to a luminance correction value of a center area to a ratio value greater than or equal to a preset ratio value when the current power consumption is less than a preset power value.

[0181] According to one or more embodiments, the electronic device (100-1) may set a ratio of a luminance correction value of an edge area to a luminance correction value of a center area to be less than a preset ratio value when the current power consumption is greater than or equal to a preset power value.

[0182] Specifically, the preset power value is 600W / m 2 Assume that the electronic device (100-1) can obtain information about the power consumed by the entire display group (200) to display an image, and that the power consumption of the display group (200) is 600 W / m 2 In this case, the electronic device (100-1) can set the ratio of the brightness correction value of the edge area to the brightness correction value of the center area to less than 75%. In addition, the electronic device (100-1) can set the power consumption of the display group (200) to 600 W / m 2 If less than, the electronic device (100-1) can set the ratio of the luminance correction value of the edge area to the luminance correction value of the center area to 75% or more.

[0183] As described above, the electronic device (100-1) can achieve the effect of lowering the power consumption of the display group (200) by setting the brightness correction value lower when the current power consumption of the display group (200) is higher than a preset power value.

[0184] Here, the preset power value is 600W / m 2 It can be set to various values ​​by manufacturers and users, such as can be set to 75%. In addition, it goes without saying that the preset ratio value can be set to various values ​​by manufacturers and users, such as can be set to 75%.

[0185] In Fig. 7, only a luminance correction function is shown in which the luminance correction value decreases linearly or in the form of a curve convex upward as the degree of separation from the center increases, but this is only one example, and the luminance correction function can be implemented in various forms, such as a function in which the luminance correction value is maintained at 100% until the degree of separation from the center exceeds a preset degree, and then the luminance correction value decreases in the form of a curve convex downward when the degree of separation from the center exceeds a preset degree.

[0186] In the description of FIG. 8 described below, a method for an electronic device (100-1) to obtain central information based on various information obtained from the outside will be described.

[0187] FIG. 8 is a diagram illustrating a method for obtaining center information of an electronic device according to one or more embodiments of the present disclosure.

[0188] According to FIG. 8, the electronic device (100-1) can obtain center information to be applied to the display device (210-1) based on the location of occurrence of a major event in the image.

[0189] The electronic device (100-1) can obtain information on the location of occurrence of a major event within the entire image displayed by the display group (200), and can obtain center information based on the shape information of the display group (200) and the information on the location of occurrence of the major event.

[0190] Here, the location of occurrence of a major event may refer to a location corresponding to various events that occurred within the video, such as the location where a major object exists, the location where a new object appears, and the location where a character is displayed.

[0191] According to one or more embodiments, the electronic device (100-1) may acquire the entire image signal and identify the location of occurrence of a key event based on image recognition technology. As illustrated in FIG. 8, the key event within the image displayed by the display group (200) may be "movement of a character."

[0192] The electronic device (100-1) can identify the position of a moving character within an image based on image recognition technology, and can identify the position of the character within the entire shape of the display group (200) based on an area of ​​pixels corresponding to the position of the character.

[0193] Specifically, the electronic device (100-1) can identify a first pixel area (810) corresponding to the position of the character in the first frame, and identify the first pixel area (810) as the center within the first frame. In addition, the electronic device (100-1) can identify a second pixel area (820) corresponding to the position of the character in the second frame, and identify the second pixel area (820) as the center within the second frame.

[0194] As described above, the electronic device (100-1) can control the display of the location where the main event occurs within the image by identifying the location where the main event occurs with the same luminance value as the original image, and display the image with a smaller luminance value compared to the original image as the degree of separation from the location where the main event occurs increases.

[0195] Although the above description illustrates the main events occurring within the video by showing the movement of characters, this is only one example and may include various events, such as events in which new characters appear or events in which a player scores a goal in a sports game.

[0196] Additionally, the electronic device (100-1) can obtain the user's gaze tracking information for the entire image displayed by the display group (200), and can obtain center information based on the shape information and gaze tracking information of the display group (200).

[0197] Here, the user's gaze tracking information may refer to information about which area of ​​the display group (200) the user's gaze while watching the image displayed by the display group (200) is located. The electronic device (100-1) may obtain an image of the user and, based on various user gaze estimation methods, obtain information about which pixel among the plurality of pixels included in the display group (200) the user's gaze corresponds to. In addition, it goes without saying that an external device may obtain the user's gaze direction and directly provide it to the electronic device (100-1).

[0198] As described above, the electronic device (100-1) can identify the position of a pixel corresponding to the user's gaze direction among a plurality of pixels included in the display group (200), and can obtain center information by identifying the position of the pixel corresponding to the user's gaze direction as the center. Accordingly, the electronic device (100-1) can control the pixel area corresponding to the user's gaze direction to be displayed with the same luminance value as the original image, and to display the image with a smaller luminance value than the original image as the degree of separation from the pixel corresponding to the user's gaze direction increases.

[0199] In the description of FIG. 9 described below, the operation method of the display system will be described together with the configuration of the display device according to the present disclosure.

[0200] FIG. 9 is a drawing for explaining the configuration of a display device according to one or more embodiments of the present disclosure.

[0201] According to FIG. 9, the display device (210-1) may include a plurality of display modules (211, 212, 213, 214, 215, 216).

[0202] Each of the plurality of display modules (211, 212, 213, 214, 215, 216) may include a plurality of LED elements. Here, each of the plurality of LED elements may be implemented as an element that implements a red LED, a green LED, and a blue LED as a single pixel. In addition, the plurality of LED elements may be implemented as micro LEDs. Micro LEDs are ultra-small light-emitting elements that emit light on their own without a color filter, and are LEDs with a size of about 5 to 100 micrometers.

[0203] The display device (210-1) may include a plurality of coupling members that can be coupled with other display devices. Accordingly, the display device (210-1) may be coupled with other display devices to form a display group (200).

[0204] The display device (210-1) can be implemented in a bezel-less form, so that it can be combined with other display devices to form a display group (200) and display an image without interruption even when displaying a single image.

[0205] Although the display device (210-1) is illustrated in FIG. 9 as including 2 x 3 display modules, this is only one example, and the display device (210-1) may of course be configured with n x m display modules (n and m are natural numbers greater than or equal to 2).

[0206] The description of FIG. 10 described below will specifically explain how the display device (210-1) displays an image.

[0207] FIG. 10 is a block diagram illustrating a configuration of a display module according to one or more embodiments of the present disclosure.

[0208] According to FIG. 10, a display module (211) included in a display device (210-1) may include a driving unit (220), a plurality of LED driving circuits (230), and a plurality of LED elements (240).

[0209] The driving unit (220) may be composed of a processor (221) and a memory (222), and may input various signals to a plurality of LED driving circuits (230).

[0210] The memory (222) can store arrangement information of LED elements and can also store an algorithm for generating a PWM signal corresponding to each of a plurality of LED elements (240) included in the display module (211) based on a received image signal.

[0211] Memory (222) can be implemented in various forms such as RAM, flash memory, HDD, external memory, memory card, etc., and is not limited to any one.

[0212] The processor (221) can generate a PWM signal corresponding to a luminance value corresponding to each of a plurality of LED elements (240) and provide the PWM signal to a plurality of LED driving circuits (230). Specifically, the processor (221) can generate a PWM signal corresponding to a luminance value included in a corrected image signal and provide the PWM signal to a plurality of LED driving circuits (230).

[0213] For example, if the corrected image signal includes information to cause the first pixel to emit light with a luminance value of “(R, G, B) = (150, 100, 50),” the processor (221) can generate a PWM signal to cause the red LED element included in the first pixel to emit light with a luminance value of 150, the green LED element included in the first pixel to emit light with a luminance value of 100, and the blue LED element included in the first pixel to emit light with a luminance value of 50, and provide the PWM signal to the LED driving circuit connected to the first pixel.

[0214] In the above description, the driving unit (220) is described as including only a processor (221) and a memory (222), but it may further include a timing controller, a data driving unit, a gate driving unit, etc.

[0215] The timing controller can receive input signals (IS), horizontal synchronization signals (Hsync), vertical synchronization signals (Vsync), and main clock signals (MCLK) from the outside, and generate image data signals, scan control signals, data control signals, and light emission control signals, and provide them to a substrate, data driver, gate driver, etc.

[0216] In particular, the timing controller can apply at least one of various signals (Emi, Vsweep, Vini, VST, Test / Discharging) to the plurality of LED driving circuits (230). In addition, the timing controller can also apply a control signal (MUX Sel R, G, B) for selecting one of the R, G, and B sub-pixels to the plurality of LED driving circuits (230).

[0217] The data driver (or source driver, data driver) is a means for generating a data signal, and can receive image data of R / G / B components, etc., and generate a data voltage (e.g., PWM data voltage).

[0218] The gate driver (or gate driver) is a means for generating various control signals, such as a control signal (SPWM(n)) and a control signal (SPAM). The gate driver can input the generated various control signals to LED driving circuits corresponding to a specific row (or a specific horizontal line) among a plurality of pixels on the substrate, but is not limited thereto.

[0219] The gate driver may, depending on the embodiment, apply a driving voltage (VDD) to the driving voltage terminal of the LED driving circuit.

[0220] The data driver and the gate driver may be implemented so that all or part of them are included in a TFT (Thin Film Transistor) layer formed on one side of the glass of the substrate, or may be implemented as a separate semiconductor IC and placed on the other side of the glass.

[0221] A plurality of LED driving circuits (230) can receive PWM data voltage in the scanning section.

[0222] And, the plurality of LED driving circuits (230) can drive the plurality of LED elements (240) by providing driving current to the plurality of light-emitting elements for a time corresponding to the input PWM data voltage in the emission section.

[0223] As described above, the display device (210-1) includes a plurality of display modules (211, 212, 213, 214, 215, 216), and each of the plurality of display modules (211, 212, 213, 214, 215, 216) includes a driving unit (220), a plurality of LED driving circuits (230), and a plurality of LED elements (240), and can generate a PWM signal based on a corrected image signal received from the electronic device (100-1) to display an image with a corrected brightness value.

[0224] FIG. 11 is a flowchart illustrating a method for providing a corrected image signal of an electronic device according to one or more embodiments of the present disclosure.

[0225] According to FIG. 11, when shape information and full resolution information of a display group are acquired, the electronic device (100-1) can acquire center information based on the shape information and full resolution information (S1110).

[0226] According to one or more embodiments, the electronic device (100-1) may obtain information about the location of occurrence of a major event within the entire image displayed by the display group, and may obtain center information based on the shape information of the display group and the information about the location of occurrence of the major event.

[0227] According to one or more embodiments, the electronic device (100-1) may obtain user gaze tracking information for the entire image displayed by the display group, and obtain center information based on shape information and gaze tracking information of the display group.

[0228] Next, when the electronic device (100-1) acquires the location information of the display device, it can calculate the degree of separation from the center for each of the plurality of pixels based on the location information and the center information (S1120).

[0229] According to one or more embodiments, the electronic device (100-1) may generate a two-dimensional coordinate system with a location corresponding to the center point of the display group as the origin and a pixel pitch as the unit length based on shape information and overall resolution information of the display group. In addition, the electronic device (100-1) may identify the coordinates of each of the plurality of pixels included in the display device within the two-dimensional coordinate system based on the position information of the display device, and may calculate the degree of separation from the center for each of the plurality of pixels based on the coordinates of each of the plurality of pixels.

[0230] Next, the electronic device (100-1) can identify a luminance correction value for each of the plurality of pixels based on the degree of separation from the center and luminance correction information (S1130).

[0231] According to one or more embodiments, the luminance compensation information may include information about a rate of change of luminance compensation values ​​for each region within a display group.

[0232] According to one or more embodiments, the electronic device (100-1) can identify the overall shape of the display group based on shape information of the display group, identify a rate of change of a luminance correction value for each region corresponding to the overall shape, and store information about the rate of change of the luminance correction value for each region identified.

[0233] According to one or more embodiments, the electronic device (100-1) may set the rate of change of the luminance correction value in the horizontal direction to be smaller than the rate of change of the luminance correction value in the vertical direction when the overall shape of the display group is a rectangle whose horizontal length is longer than its vertical length.

[0234] According to one or more embodiments, the luminance compensation information may include luminance difference information. The luminance difference information may include a ratio of a luminance compensation value of an edge area of ​​the display group to a luminance compensation value of a center area of ​​the display group.

[0235] According to one or more embodiments, when information on current power consumption of a display group is obtained, the electronic device (100-1) may compare the current power consumption with a preset power value, and if the current power consumption is less than the preset power value, may set the ratio of the brightness correction value of an edge area to the brightness correction value of a center area to be equal to or greater than the preset ratio value. In addition, the electronic device (100-1) may set the ratio to be less than the preset ratio value if the current power consumption is equal to or greater than the preset power value.

[0236] Next, the electronic device (100-1) can correct the luminance value included in the image signal based on the luminance correction value and identify the corrected luminance value for each of the plurality of pixels (S1140).

[0237]

[0238] Next, the electronic device (100-1) can provide a corrected image signal including a corrected luminance value to the display device.

[0239] The electronic device (100-1) can provide a corrected image signal with a lower luminance value than the original image as the distance from the center increases to the display device by performing the operations in the order described above, thereby reducing the power consumption of the display device and preventing the user from perceiving a difference between the corrected image and the original image.

[0240] FIG. 12 is a flowchart illustrating a method for luminance correction of an electronic device according to one or more embodiments of the present disclosure.

[0241] According to FIG. 12, when the electronic device (100-1) operates in a multi-view mode in which a display group displays multiple images, the electronic device can obtain location information and resolution information of at least one external display device that displays the same image as the display device within the display group (S1210).

[0242] Next, the electronic device (100-1) can identify the entire shape of a display set for displaying one image based on the location information and resolution information of at least one external display device (S1220).

[0243] Next, the electronic device (100-1) can obtain center information to be applied to the display device based on the overall shape of the display set (S1230).

[0244] The electronic device (100-1) can identify the center at which an image is displayed even when a display group displays multiple images by performing the operations in the order described above, and can provide an image signal corrected to have a lower luminance value than the original image as the degree of separation from the center increases, thereby achieving the effect of reducing power consumption of the display device.

[0245] The various methods described in FIGS. 11 and 12 can be performed by an electronic device having the configuration shown in FIG. 2, but are not necessarily limited thereto, and can be performed by electronic devices having various configurations.

[0246] Meanwhile, in FIGS. 11 and 12, the order is mapped for all steps for convenience of explanation, but it is of course not necessarily limited to the order of steps that are not related to the order or can be performed in parallel.

[0247]

[0248] Meanwhile, the methods according to at least some of the various embodiments of the present disclosure described above may be implemented in the form of an application that can be installed on an existing electronic device.

[0249] Additionally, the methods according to at least some of the various embodiments of the present disclosure described above can be implemented with only a software upgrade or a hardware upgrade for an existing electronic device.

[0250] Additionally, the methods according to at least some of the various embodiments of the present disclosure described above may also be performed through an embedded server provided in an electronic device, or an external server of at least one of the electronic devices.

[0251] Meanwhile, according to one embodiment of the present disclosure, the various embodiments described above can be implemented as software including instructions stored in a machine-readable storage medium that can be read by a machine (e.g., a computer). The machine is a device that can call instructions stored from the storage medium and operate according to the called instructions, and may include an electronic device (e.g., electronic device (A)) according to the disclosed embodiments. When an instruction is executed by a processor, the processor can perform a function corresponding to the instruction directly or by using other components under the control of the processor. The instruction may include code generated or executed by a compiler or an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, the 'non-transitory storage medium' only means that it is a tangible device and does not include a signal (e.g., an electromagnetic wave), and this term does not distinguish between cases where data is stored semi-permanently and cases where it is temporarily stored in the storage medium. No. For example, a 'non-transitory storage medium' may include a buffer in which data is temporarily stored. According to one embodiment, the method according to various embodiments disclosed in the present document may be provided as a computer program product. The computer program product may be traded between sellers and buyers as a commodity. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smartphones).In the case of online distribution, at least a portion of the computer program product (e.g., a downloadable app) may be temporarily stored or temporarily created in a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0252] Various embodiments of the present disclosure may be implemented as software including instructions stored in a machine-readable storage medium that can be read by a machine (e.g., a computer). The device is a device that can call instructions stored in the storage medium and operate according to the called instructions, and may include an electronic device (e.g., an electronic device (100-1)) according to the disclosed embodiments.

[0253] When the above-described instruction is executed by the processor, the processor may perform the function corresponding to the instruction directly or by utilizing other components under the control of the processor. The instruction may include code generated or executed by a compiler or interpreter.

[0254] Although the preferred embodiments of the present disclosure have been illustrated and described above, the present disclosure is not limited to the specific embodiments described above, and various modifications may be made by a person having ordinary skill in the art to which the present disclosure pertains without departing from the gist of the present disclosure as claimed in the claims, and such modifications should not be understood individually from the technical idea or prospect of the present disclosure.

Claims

1. In electronic devices, An interface that connects to a single display device within a display group; A memory storing center information to be applied to the display device and brightness correction information according to the degree of separation from the center; and At least one processor for correcting an image signal to be provided to the display device based on the center information and the brightness correction information, and providing the corrected image signal to the display device through the interface, At least one processor, When the shape information and the overall resolution information of the display group are obtained, the center information is obtained based on the shape information and the overall resolution information and stored in the memory, When the location information of the display device is acquired, the degree of separation from the center is calculated for each of the plurality of pixels included in the display device based on the location information and the center information, Identifying a luminance correction value for each of the plurality of pixels based on the degree of deviation from the center calculated above and the luminance correction information, Correcting the luminance value included in the image signal to be provided to the display device based on the luminance correction value to identify the corrected luminance value for each of the plurality of pixels, An electronic device that provides the corrected image signal including the corrected luminance value to the display device through the interface.

2. In paragraph 1, At least one processor, Based on the above shape information and the overall resolution information, a two-dimensional coordinate system is created with the location corresponding to the center point of the display group as the origin and the pixel pitch as the unit length, Identifying the coordinates of each of the plurality of pixels included in the display device within the two-dimensional coordinate system based on the location information of the display device, An electronic device that calculates the degree of separation from the center for each of the plurality of pixels based on the coordinates of each of the plurality of pixels.

3. In paragraph 1, At least one processor, When the display group operates in a multi-view mode displaying multiple images, position information and resolution information of at least one external display device displaying the same image as the display device within the display group are acquired, Identifying the overall shape of a display cluster for displaying the one image based on the location information and resolution information of the at least one external display device, An electronic device that obtains the center information based on the overall shape of the identified display set and stores it in the memory.

4. In paragraph 1, The luminance correction information according to the degree of separation from the center includes information on the rate of change of the luminance correction value for each area within the display group, At least one processor, Identifying the overall shape of the display group based on the shape information of the display group, Identify the rate of change of the luminance correction value for each region corresponding to the overall shape above, An electronic device that stores information about the rate of change of the luminance correction value for each identified area in the memory.

5. In paragraph 4, At least one processor, If the overall shape of the above display group is a rectangle whose horizontal length is longer than its vertical length, the rate of change of the luminance correction value in the horizontal direction is set to be smaller than the rate of change of the luminance correction value in the vertical direction, The rate of change of the luminance correction value in the horizontal direction includes information about the change in the luminance correction value of pixels included between the center area and the horizontal edge area of ​​the display group, An electronic device, wherein the rate of change of the luminance correction value in the vertical direction includes information about the change in the luminance correction value of pixels included between the center region and the vertical edge region of the display group.

6. In paragraph 1, The luminance correction information according to the degree of separation from the center includes luminance difference information, The above luminance difference information includes a ratio of a luminance correction value of an edge area of ​​the display group to a luminance correction value of a center area of ​​the display group, At least one processor, When information about the current power consumption of the above display group is obtained, the current power consumption is compared with the preset power value, If the current power consumption is less than the preset power value, the ratio is set to be greater than the preset ratio value, An electronic device that sets the ratio to be less than the preset ratio value when the current power consumption is greater than or equal to the preset power value.

7. In paragraph 1, At least one processor, An electronic device that obtains information on the location of occurrence of a major event within the entire image displayed by the display group, and obtains the center information based on the shape information and the information on the location of occurrence of the major event, and stores the information in the memory.

8. In paragraph 1, At least one processor, An electronic device that obtains the user's gaze tracking information for the entire image displayed by the display group, obtains the center information based on the shape information and the gaze tracking information, and stores it in the memory.

9. In paragraph 1, An electronic device, wherein the luminance correction information includes a first luminance correction function in which the luminance correction value linearly decreases as the distance from the center increases, and a second luminance correction function in which the luminance correction value nonlinearly decreases as the distance from the center increases.

10. In paragraph 1, The display device includes a plurality of display modules, An electronic device, wherein each of the plurality of display modules includes a plurality of LED elements.

11. A method for controlling an electronic device connected to a display device belonging to a display group, When shape information and overall resolution information of the display group are obtained, a step of obtaining center information to be applied to the display device based on the shape information and the overall resolution information; When the location information of the display device is acquired, a step of calculating the degree of separation from the center for each of a plurality of pixels included in the display device based on the location information and the center information; A step of identifying a brightness correction value for each of the plurality of pixels based on the calculated distance from the center and brightness correction information; A step of correcting a luminance value included in an image signal to be provided to the display device based on the luminance correction value to identify a corrected luminance value for each of the plurality of pixels; and A step of providing a corrected image signal including the corrected luminance value to the display device; A control method, wherein the above luminance correction information includes information on a luminance correction value according to the degree of separation from the center.

12. In paragraph 11, The step of calculating the degree of separation from the center for each of the plurality of pixels is: A step of generating a two-dimensional coordinate system with a location corresponding to the center point of the display group as the origin and a pixel pitch as the unit length based on the shape information and the overall resolution information; A step of identifying the coordinates of each of the plurality of pixels included in the display device within the two-dimensional coordinate system based on the location information of the display device; and A control method comprising: a step of calculating the degree of separation from the center for each of the plurality of pixels based on the coordinates of each of the plurality of pixels; 13. In paragraph 11, The step of obtaining the central information to be applied to the above display device is: When the display group operates in a multi-view mode displaying multiple images, a step of obtaining position information and resolution information of at least one external display device displaying the same image as the display device within the display group; A step of identifying the overall shape of a display cluster for displaying the one image based on position information and resolution information of the at least one external display device; and A control method comprising: a step of obtaining the center information based on the overall shape of the identified display set; 14. In paragraph 11, The above luminance correction information includes information on the rate of change of luminance correction values ​​for each area within the display group, A step of identifying the entire shape of the display group based on shape information of the display group; A step of identifying the rate of change of the luminance correction value for each region corresponding to the overall shape; and A control method comprising: a step of storing information on the rate of change of the luminance correction value for each identified area; 15. In paragraph 14, Including a step of setting the rate of change of the luminance correction value in the horizontal direction to be smaller than the rate of change of the luminance correction value in the vertical direction when the overall shape of the above display group is a rectangle whose horizontal length is longer than its vertical length; The rate of change of the luminance correction value in the horizontal direction includes information about the change in the luminance correction value of pixels included between the center area and the horizontal edge area of ​​the display group, A control method, wherein the rate of change of the luminance correction value in the vertical direction includes information about the change in the luminance correction value of pixels included between the center area and the vertical edge area of ​​the display group.

Images