Display device and operation method thereof

Abstract

A display device is disclosed. The display device comprises: a display panel including a plurality of display blocks; at least one processor including processing circuitry; and a memory for storing instructions, wherein, when individually or collectively executed by the at least one processor, the instructions instruct the display device to display, on the plurality of display blocks, a first primary color from among at least one primary color, identify a first minimum lightness value from among first lightness values corresponding to the respective display blocks when a first lightness value corresponding to the first primary color displayed on the plurality of display blocks is identified, identify, for the respective display blocks, a first dithering ratio corresponding to the first primary color on the basis of the first lightness values corresponding to the respective display blocks and the first minimum lightness value, correct an image corresponding to the respective display blocks on the basis of the first dithering ratio identified for the respective display blocks, and cause the respective display blocks to display the corrected image.

Description

Display device and method of operation thereof

[0001] The present disclosure relates to a display device and a method of operating the same, and more specifically, to a display device that displays a corrected image based on the optical characteristics of a display block and a method of operating the same.

[0002] As electronic technology advances, technological development for various types of electronic devices is becoming active. In particular, technological development is underway for various types of display devices that provide content to users through displays.

[0003] A display device according to one embodiment of the present disclosure comprises a display panel including a plurality of display blocks, at least one processor including processing circuitry, and a memory for storing instructions, wherein when the instructions are executed individually or collectively by the at least one processor, the display device may display a first primary color among at least one primary color on the plurality of display blocks.

[0004] According to one embodiment, when the instructions are executed individually or collectively by the at least one processor, the display device may identify a first minimum brightness value among the first brightness values ​​corresponding to each of the plurality of display blocks when a first brightness value corresponding to the first primary color displayed on the plurality of display blocks is identified.

[0005] According to one embodiment, when the instructions are executed individually or collectively by the at least one processor, the display device may identify a first dithering ratio corresponding to the first primary color for each of the plurality of display blocks based on a first brightness value corresponding to each of the plurality of display blocks and the first minimum brightness value.

[0006] According to one embodiment, when the instructions are executed individually or collectively by the at least one processor, the display device may correct an image corresponding to each of the plurality of display blocks based on the first dithering ratio identified for each of the plurality of display blocks.

[0007] According to one embodiment, when the instructions are executed individually or collectively by the at least one processor, the display device may enable each of the plurality of display blocks to display a corrected image.

[0008] A method of operation of a display device including a display panel including a plurality of display blocks according to one embodiment of the present disclosure may include an operation of displaying a first primary color among at least one primary color on the plurality of display blocks.

[0009] According to one embodiment, the operation method may include identifying a first minimum brightness value among the first brightness values ​​corresponding to each of the plurality of display blocks when a first brightness value corresponding to the first primary color displayed on the plurality of display blocks is identified.

[0010] According to one embodiment, the operation method may include an operation of identifying a first dithering ratio corresponding to the first primary color for each of the plurality of display blocks based on a first brightness value corresponding to each of the plurality of display blocks and the first minimum brightness value.

[0011] According to one embodiment, the operation method may include an operation of correcting an image corresponding to each of the plurality of display blocks based on the first dithering ratio identified for each of the plurality of display blocks.

[0012] According to one embodiment, the operation method may include an operation in which each of the plurality of display blocks displays a corrected image.

[0013] In a storage medium for storing computer-readable instructions according to one embodiment of the present disclosure, the instructions, when executed by at least one processor of a display device including a display panel including a plurality of display blocks, may cause the display device to display a first primary color among at least one primary color on the plurality of display blocks.

[0014] According to one embodiment, when the instructions are executed by at least one processor of a display device including a display panel including a plurality of display blocks, the display device may be caused to identify a first minimum brightness value among the first brightness values ​​corresponding to each of the plurality of display blocks when a first brightness value corresponding to the first primary color displayed on the plurality of display blocks is identified.

[0015] According to one embodiment, when the instructions are executed by at least one processor of the display device, the display device may be caused to identify a first dithering ratio corresponding to the first primary color for each of the plurality of display blocks based on a first brightness value corresponding to each of the plurality of display blocks and the first minimum brightness value.

[0016] According to one embodiment, when the instructions are executed by at least one processor of the display device, the display device may cause the display device to correct an image corresponding to each of the plurality of display blocks based on the first dithering ratio identified for each of the plurality of display blocks.

[0017] According to one embodiment, when the instructions are executed by at least one processor of the display device, the display device may cause each of the plurality of display blocks to display a corrected image.

[0018] FIG. 1 is a diagram schematically illustrating a display device according to one embodiment.

[0019] FIG. 2 is a block diagram showing the configuration of a display device according to one embodiment.

[0020] FIG. 3 is a flowchart illustrating a method of operation of a display device according to one embodiment.

[0021] FIG. 4 is a flowchart illustrating a method for displaying an image in which the first primary color and the second primary color are corrected according to one embodiment.

[0022] FIG. 5 is a flowchart illustrating a method for displaying a first color-corrected image according to one embodiment.

[0023] FIG. 6 is a flowchart illustrating a method for displaying a first color-corrected image according to one embodiment.

[0024] FIG. 7 is a flowchart illustrating a method for displaying an image in which the first and second colors are corrected according to one embodiment.

[0025] FIG. 8 is a drawing for explaining a method of correcting an image corresponding to each of a plurality of display blocks based on a dithering ratio according to one embodiment.

[0026] FIG. 9 is a drawing for explaining a method of correcting an image corresponding to each of a plurality of display blocks based on the distribution ratio of primary colors according to one embodiment.

[0027] FIG. 10a is a drawing for explaining a display panel according to one embodiment.

[0028] FIG. 10b is a drawing for explaining a display panel according to one embodiment.

[0029] FIG. 11 is a block diagram showing the detailed configuration of a display device according to one embodiment.

[0030] The present disclosure will be described in detail below with reference to the attached drawings.

[0031] The terms used in this specification will be briefly explained, and the present disclosure will be described in detail.

[0032] The terms used in the embodiments of this disclosure have been selected to be as widely used as possible, taking into account their functions within this disclosure; however, these terms may vary depending on the intent of those skilled in the art, case law, the emergence of new technologies, etc. Additionally, in specific cases, terms have been arbitrarily selected by the applicant, and in such cases, their meanings will be described in detail in the relevant explanatory section of this disclosure. Therefore, terms used in this disclosure should be defined not merely by their names, but based on their meanings and the overall content of this disclosure.

[0033] In this specification, expressions such as “have,” “may have,” “include,” or “may include” indicate the presence of such features (e.g., numerical values, functions, operations, or components such as parts) and do not exclude the presence of additional features.

[0034] The expression "at least one of A or / and B" should be understood as representing either "A" or "B" or "A and B".

[0035] Expressions such as "first," "second," "first," or "second" used in this specification may modify various components regardless of order and / or importance, and are used only to distinguish one component from another and do not limit said components.

[0036] Where it is stated that a component (e.g., Component 1) is "(operatively or communicatively) coupled with / to" or "connected to" another component (e.g., Component 2), it should be understood that the component may be directly connected to the other component or connected through the other component (e.g., Component 3).

[0037] The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "consisting of" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0038] In the present disclosure, a "module" or "part" performs at least one function or operation and may be implemented in hardware or software, or a combination of hardware and software. Additionally, a plurality of "modules" or a plurality of "parts" may be integrated into at least one module and implemented by at least one processor (not shown), except for a "module" or "part" that needs to be implemented in specific hardware.

[0039] Furthermore, in this specification, the term "signal" includes not only electrical signals but also signals in the form of sound waves, and in the case of electrical signals, it may be a digital signal as well as an analog signal. For example, the expression "audio signal" (or "noise signal") refers to a sound wave (or radio wave) signal if the signal is outside the display device, and an electrical signal if it is inside the display device, depending on the location of the signal. Additionally, the signal processing within the display device described below may be a digital signal processing method, an analog signal processing method, or a signal processing method that combines analog and digital methods.

[0040] And in this specification, the term "filter" refers to removing a specific component (e.g., a specific frequency range or a specific pattern), and said filter may be a digital filter or an analog filter.

[0041] FIG. 1 is a diagram schematically illustrating a display device according to one embodiment.

[0042] According to FIG. 1, according to one embodiment, a display device can display an image through a display panel comprising a plurality of display blocks.

[0043] According to one example, even when the same primary color is displayed, the optical characteristics (e.g., brightness or color coordinate values) corresponding to each display block may differ. According to one example, the display device may perform correction on the image displayed on each of the plurality of display blocks based on parameter values ​​corresponding to the optical characteristics of each of the plurality of display blocks.

[0044] According to one example, the display device may perform different types of correction. For example, the display device may correct the image displayed on each of a plurality of display blocks so that the brightness value corresponding to a specific primary color becomes uniform. Alternatively, for example, the display device may identify the distribution ratio of the primary color corresponding to a specific mixed color for each of a plurality of display blocks and correct the image displayed on each of a plurality of display blocks based thereon so that the color coordinate value corresponding to a specific mixed color becomes uniform.

[0045] Below, we will describe a method for providing a uniform image (10-2) by correcting the image displayed in each display block by considering the parameter values ​​corresponding to the optical characteristics when the optical characteristics of each of the multiple display blocks are different (10-1), and by displaying the corrected image.

[0046] FIG. 2 is a block diagram showing the configuration of a display device according to one embodiment.

[0047] According to FIG. 2, the display device (100) may include a display panel (110), at least one processor (120) and memory (130).

[0048] According to one embodiment, the display device (100) may be implemented as various devices capable of providing content by having a display, such as an e-book, a smart TV, a tablet, a monitor, a desktop computer, a laptop computer, etc. According to one embodiment of the present disclosure, the display device is not limited to the devices described above, and the display device may be implemented as a display device having two or more functions of the devices described above.

[0049] According to one embodiment, the display panel (110) may be implemented as an electrophoretic display. According to one embodiment, the display panel (110) may be implemented as a display having characteristics similar to paper print using e-ink. According to one embodiment, the display panel (110) may provide an image by reflecting external light without a separate backlight. For example, the display panel (110) may operate at low power because it does not emit light and provides an image using natural light (or reflected light).

[0050] According to one embodiment, the display panel (110) consumes power only when updating the screen (or switching the screen), and after updating the screen, it can continuously provide the screen without additional power consumption. Due to these advantages, electronic paper displays are used for e-books, price displays, menus, etc.

[0051] According to one embodiment, the display panel (110) may be implemented as a display including a self-emissive element or as a display including a non-emissive element. For example, it may be implemented as various types of displays such as an LCD (Liquid Crystal Display), an OLED (Organic Light Emitting Diodes) display, an LED (Light Emitting Diodes), a micro LED, a Mini LED, a PDP (Plasma Display Panel), a QD (Quantum dot) display, a QLED (Quantum dot light-emitting diodes), etc. The display panel (110) may be implemented as a touch screen combined with a touch sensor, a flexible display, a rollable display, a 3D display, a display in which a plurality of display modules are physically connected, etc. A processor may control the display panel (110) to output an output image obtained according to the various embodiments described above. Here, the output image may be a high-resolution image of 4K or 8K or higher. According to one embodiment, the display panel (110) may include a plurality of display blocks.

[0052] At least one processor (120) (hereinafter, processor) is electrically connected to the display panel (110) and memory (130) to control the overall operation of the display device (100). The processor (120) may be composed of one or more processors. Specifically, the processor (120) may perform the operation of the display device (100) according to various embodiments of the present disclosure by executing at least one instruction stored in the memory (130).

[0053] According to one embodiment, the processor (120) may be implemented as a digital signal processor (DSP) that processes digital video signals, a microprocessor, a Graphics Processing Unit (GPU), an Artificial Intelligence (AI) processor, a Neural Processing Unit (NPU), or a Time Controller (TCON). However, it is not limited thereto, and may include or be defined by one or more of a central processing unit (CPU), a Micro Controller Unit (MCU), a micro processing unit (MPU), a controller, an application processor (AP), a communication processor (CP), or an ARM processor. Additionally, the processor (120) may be implemented as a System on Chip (SoC) or Large Scale Integration (LSI) with a built-in processing algorithm, or may be implemented in the form of an Application Specific Integrated Circuit (ASIC) or Field Programmable Gate Array (FPGA).

[0054] The memory (130) can store data necessary for various embodiments. Depending on the purpose of data storage, the memory (130) may be implemented in the form of a memory embedded in the display device (100) or in the form of a memory that can be attached to and detached from the display device (100). For example, data for driving the display device (100) may be stored in a memory embedded in the display device (100), and data for the expansion function of the display device (100) may be stored in a memory that can be attached to and detached from the display device (100).

[0055] Meanwhile, the memory embedded in the display device (100) may be implemented as at least one of volatile memory (e.g., DRAM (dynamic RAM), SRAM (static RAM), or SDRAM (synchronous dynamic RAM), etc.), non-volatile memory (e.g., OTPROM (one-time programmable ROM), PROM (programmable ROM), EPROM (erasable and programmable ROM), EEPROM (electrically erasable and programmable ROM), mask ROM, flash ROM, flash memory (e.g., NAND flash or NOR flash, etc.), a hard drive, or a solid-state drive (SSD). Additionally, the memory that is detachable from the display device (100) may 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.), or external memory connectable to a USB port (e.g., USB memory). there is.

[0056] According to one embodiment, the processor (120) can display a single image by tiling it through a plurality of display blocks. According to one example, the processor (120) can display a single image by tiling it by dividing the image to identify a sub-image to be displayed on each of the plurality of display blocks and displaying the identified sub-image on each of the display blocks.

[0057] According to one embodiment, the processor (120) may display at least one primary color on a plurality of display blocks to obtain a parameter value corresponding to the optical characteristics of each of the plurality of display blocks. According to one example, the parameter may include lightness (or L*) and at least one type of color coordinate, as a parameter related to color representation defined by the International Commission on Illumination. According to one example, the color coordinate may include at least one of a color coordinate on the Red-Green Axis and a color coordinate on the Yellow-Blue Axis. According to one example, the processor (120) may display a primary color on a display block to obtain a parameter value corresponding to each of the display blocks. According to one example, the processor (120) may obtain a parameter value corresponding to each of at least one primary color for each of the display blocks.

[0058] According to one example, the processor (120) may display a first primary color among at least one primary color on a plurality of display blocks. A primary color means a color that cannot be further broken down. According to one example, at least one primary color may include different types of colors including red, blue, green, yellow, black, and white, but is not limited thereto. According to one example, the processor (120) may display the first primary color on each of the plurality of display blocks.

[0059] According to one example, the processor (120) can identify a first brightness value corresponding to a first primary color. According to one example, the processor (120) can identify a first brightness value for each of a plurality of display blocks. For example, when a first primary color is displayed on a plurality of display blocks, a first brightness value corresponding to each of the plurality of display blocks can be measured through an external device. According to one example, the processor (120) can obtain the first brightness value corresponding to each of the measured plurality of display blocks from an external device through a communication circuit (e.g., the communication circuit (150) of FIG. 10). According to one example, the external device may be a device including a spectrophotometer for measuring parameters.

[0060] According to one example, when a first lightness value corresponding to a first primary color displayed on a plurality of display blocks is identified, the processor (120) can identify a first minimum lightness value among the first lightness values ​​corresponding to each of the plurality of display blocks.

[0061] According to one embodiment, the processor (120) can identify a dithering ratio corresponding to the primary color for each of the plurality of display blocks. Dithering is an image processing technique that intentionally adds a small amount of noise or a pattern to an image having a limited color palette to create a rich color or shade expression. According to one example, the dithering ratio may be the ratio of the primary color excluding black noise per unit area. According to one example, the unit area may be an area containing a preset number of pixels. This will be explained in detail through FIG. 8.

[0062] According to one example, the processor (120) can identify a first dithering ratio corresponding to a first primary color for each of the plurality of display blocks based on a first brightness value and a first minimum brightness value corresponding to each of the plurality of display blocks. According to one example, the processor (120) can identify a dithering ratio based on the ratio of the first brightness value to the first minimum brightness value.

[0063] For example, a case may be assumed in which a first brightness value corresponding to a first block among a plurality of display blocks is identified as a first minimum brightness value. The processor (120) can identify a first brightness value corresponding to a first primary color (e.g., red) for a second block that is different from the first block. The processor (120) can identify a first dithering ratio corresponding to the first primary color of the second block based on the ratio of the first brightness value of the second block to the first minimum brightness value. However, this is merely an example, and according to the example, the processor (120) can identify a first dithering ratio for each of the plurality of display blocks. This will be explained in detail through FIG. 8.

[0064] According to one embodiment, the processor (120) can correct an image (or sub-image) corresponding to each of a plurality of display blocks based on an identified dithering ratio. According to one example, the processor (120) can correct an image corresponding to each of a plurality of display blocks based on a first dithering ratio identified for each of a plurality of display blocks. For example, if a first dithering ratio corresponding to a first primary color is identified for a second block, the processor (120) can identify an image in which the first primary color is corrected based on the identified first dithering ratio.

[0065] According to one embodiment, the processor (120) may enable each of the plurality of display blocks to display a corrected image. According to one example, the processor (120) may enable the corrected image to be displayed on each of the display blocks when the image is corrected according to a first dithering ratio corresponding to each of the plurality of display blocks including a second block and a third block.

[0066] According to the example described above, the display device (100) corrects the image by taking into account the difference in optical characteristics of each of the plurality of display blocks, thereby enabling the user to receive a uniform image even when the image is divided and displayed through the plurality of display blocks.

[0067] FIG. 3 is a flowchart illustrating a method of operation of a display device according to one embodiment.

[0068] According to FIG. 3, according to one embodiment, the operation method may include an operation (S310) of displaying a first primary color among at least one primary color on a plurality of display blocks.

[0069] According to one example, the display device (100) may include a display panel comprising a plurality of display blocks. According to one example, the display device (100) may display a first primary color among at least one primary color on each of the plurality of display blocks.

[0070] According to one embodiment, the operation method may include an operation (S320) of identifying a first minimum brightness value among the first brightness values ​​corresponding to each of the plurality of display blocks when a first brightness value corresponding to a first primary color displayed on the plurality of display blocks is identified.

[0071] According to one example, when a first primary color is displayed on each of a plurality of display blocks, a first brightness value corresponding to the first primary color can be measured through an external device. According to one example, the display device (100) can obtain the first brightness value corresponding to each of the measured plurality of display blocks from an external device through a communication circuit.

[0072] According to one example, when a first lightness value corresponding to a first primary color displayed on a plurality of display blocks is identified, the display device (100) can identify a first minimum lightness value among the first lightness values ​​corresponding to each of the plurality of display blocks.

[0073] According to one embodiment, the operation method may include an operation (S330) of identifying a first dithering ratio corresponding to a first primary color for each of a plurality of display blocks based on a first brightness value and a first minimum brightness value corresponding to each of a plurality of display blocks.

[0074] According to one example, when a first brightness value and a first minimum brightness value corresponding to each of a plurality of display blocks are identified, the display device (100) can identify a first dithering ratio corresponding to a first primary color for each display block.

[0075] According to one embodiment, the operation method may include an operation (S340) of correcting an image corresponding to each of a plurality of display blocks based on a first dithering ratio identified for each of a plurality of display blocks.

[0076] According to one example, when each first dithering ratio is identified, the display device (100) can correct an image (or sub-image) corresponding to each of a plurality of display blocks based on the identified first dithering ratio. According to one example, when an image is corrected based on a first dithering ratio corresponding to a first primary color, the image can be corrected with respect to the first primary color included in the image.

[0077] According to one embodiment, the operation method may include an operation (S350) in which each of the plurality of display blocks displays a corrected image.

[0078] According to one example, the display device (100) can display the corrected image on each of the multiple display blocks when the corrected image is identified for each of the multiple display blocks.

[0079] FIG. 4 is a flowchart illustrating a method for displaying an image in which the first primary color and the second primary color are corrected according to one embodiment.

[0080] According to FIG. 4, according to one embodiment, the operation method may include an operation (S410) of displaying a second primary color (e.g., blue) among at least one primary color on a plurality of display blocks. According to one example, the display device may display a second primary color different from the first primary color among at least one primary color on each of the plurality of display blocks.

[0081] According to one embodiment, the operation method may include an operation (S420) of identifying a second minimum brightness value among the second brightness values ​​corresponding to each of the plurality of display blocks when a second brightness value corresponding to a second primary color displayed on the plurality of display blocks is identified.

[0082] According to one example, when a second primary color is displayed on each of a plurality of display blocks, a second brightness value corresponding to the second primary color can be measured through an external device. According to one example, the display device (100) can obtain the second brightness value corresponding to each of the measured plurality of display blocks from an external device through a communication circuit.

[0083] According to one example, when a second brightness value corresponding to a second primary color displayed on a plurality of display blocks is identified, the display device (100) can identify a second minimum brightness value among the second brightness values ​​corresponding to each of the plurality of display blocks.

[0084] According to one embodiment, the operation method may include an operation (S430) of identifying a second dithering ratio corresponding to a second primary color for each of a plurality of display blocks based on a second brightness value and a second minimum brightness value corresponding to each of a plurality of display blocks.

[0085] According to one example, the display device (100) can identify a second dithering ratio corresponding to a second primary color for each of the plurality of display blocks based on a second brightness value and a second minimum brightness value corresponding to each of the plurality of display blocks. According to one example, the display device (100) can identify a second dithering ratio based on the ratio of the second brightness value to the second minimum brightness value.

[0086] For example, a case can be assumed in which a second brightness value corresponding to a third block among a plurality of display blocks is identified as a second minimum brightness value. The display device (100) can identify a second brightness value corresponding to a second primary color (e.g., blue) for a second block that is different from the third block. The display device (100) can identify a second dithering ratio corresponding to the second primary color of the second block based on the ratio of the second brightness value of the second block to the second minimum brightness value.

[0087] According to one embodiment, the operation method may include an operation (S440) of correcting an image corresponding to each of a plurality of display blocks based on a first dithering ratio and a second dithering ratio identified for each of a plurality of display blocks.

[0088] According to one example, the display device (100) can correct an image corresponding to each of a plurality of display blocks based on a first dithering ratio and a second dithering ratio identified for each of a plurality of display blocks. For example, the display device (100) can identify an image corrected based on a first dithering ratio corresponding to a first primary color and a second dithering ratio corresponding to a second primary color as an image corresponding to a second block. According to one example, the corrected image may be an image corrected for the first primary color and the second primary color as an image to be displayed in the second block.

[0089] However, it is not limited thereto, and according to one example, the display device (100) can perform correction based on a first dithering ratio and a second dithering ratio corresponding to each of the remaining blocks excluding the second block among the plurality of display blocks.

[0090] According to one embodiment, the operation method may include an operation (S450) in which each of the plurality of display blocks displays a corrected image.

[0091] According to one example, the display device (100) may display the corrected image on each display block when the image is corrected based on a first dithering ratio and a second dithering ratio corresponding to each of the plurality of display blocks.

[0092] FIG. 5 is a flowchart illustrating a method for displaying a first color-corrected image according to one embodiment.

[0093] According to FIG. 5, according to one embodiment, the operation method may include an operation (S510) of identifying a first color distance value corresponding to the first primary color for each of the plurality of display blocks based on the first color coordinate value corresponding to each of the plurality of display blocks and the target color coordinate value corresponding to the first primary color when a first color coordinate value corresponding to the first primary color displayed on the plurality of display blocks is identified.

[0094] According to one example, the color coordinates may include at least one of a color coordinate on the Red-Green Axis (or a first axis) and a color coordinate on the Yellow-Blue Axis (or a second axis). According to one example, the first color coordinate value may each include a color coordinate value corresponding to the first axis and a color coordinate value corresponding to the second axis.

[0095] According to one example, the display device (100) can identify a first color coordinate value corresponding to the first primary color based on the parameter value obtained from an external device when the first primary color is displayed on a plurality of display blocks.

[0096] According to one example, the display device (100) can identify a first color distance value corresponding to a first primary color for each of the plurality of display blocks based on a first color coordinate value corresponding to each of the plurality of display blocks and a target color coordinate value corresponding to a first primary color. According to one example, the target color coordinate value may be a preset value, and according to one example, information regarding the target color coordinate value may be stored in memory (130). According to one example, the display device (100) can identify a color distance value for each of the plurality of display blocks using the same target color coordinate value.

[0097] According to one example, the color distance may be the distance between a color coordinate value corresponding to a display block and a target color coordinate value. For example, the first color distance may be the distance between a first color coordinate value corresponding to a first primary color and a target color coordinate value corresponding to a first primary color. According to one example, the display device (100) may identify a first color distance value for each of a plurality of display blocks based on the first color coordinate value.

[0098] According to one embodiment, the operation method may include an operation (S520) of identifying the distribution ratio of a primary color corresponding to a first mixed color for each of a plurality of display blocks based on a first color distance value corresponding to each of a plurality of display blocks.

[0099] According to one example, the mixed color may be a color in which a plurality of primary colors are mixed at a preset distribution ratio. According to one example, the preset ratio may be the ratio of the number of pixels corresponding to each primary color per unit area, but is not limited thereto. According to one example, the first mixed color may be a color including the first primary color.

[0100] According to one example, the display device (100) can identify the distribution ratio of primary colors based on the magnitude of the color distance value. For example, information regarding the distribution ratio corresponding to the magnitude of the color distance value may be stored in the memory (130). According to one example, the smaller the magnitude of the color distance value corresponding to a specific primary color, the relatively higher the distribution ratio of the specific primary color may be. Or, according to one example, the larger the magnitude of the color distance value corresponding to a specific primary color, the relatively lower the distribution ratio of the specific primary color may be. However, it is not limited thereto. This will be explained in detail through FIG. 9.

[0101] According to one example, the display device (100) can identify the distribution ratio of a first primary color for each of a plurality of display blocks. According to one example, the display device (100) can identify the distribution ratio of a first primary color based on a first color distance value corresponding to a first block and identify the distribution ratio of a first primary color based on a first color distance value corresponding to a second block.

[0102] However, this is not limited thereto, and according to one example, the display device (100) may identify the distribution ratio of primary colors based on the difference in color coordinate values ​​rather than color distance values. For example, the greater the difference in color coordinate values ​​corresponding to a specific primary color, the relatively lower the distribution ratio of the specific primary color may be.

[0103] Alternatively, according to one example, when a first color distance value is identified, the display device may also identify the distribution ratio of the primary color corresponding to the first mixed color using a preset distribution ratio calculation algorithm.

[0104] According to one embodiment, the operation method may include an operation (S530) of correcting an image corresponding to each of a plurality of display blocks based on the distribution ratio of identified primary colors.

[0105] According to one example, when the distribution ratio of a first primary color is identified, the display device (100) can correct an image corresponding to each of a plurality of display blocks based on the identified distribution ratio. For example, when the distribution ratio of a first primary color is identified for a first block, the display device (100) can correct an image corresponding to a first block based on the identified distribution ratio.

[0106] According to one embodiment, the operation method may include an operation (S540) in which each of a plurality of display blocks displays a corrected image. According to one example, when an image is corrected based on an identified distribution ratio, the display device may enable the corrected image to be displayed through each of a plurality of display blocks.

[0107] According to the example described above, when a display device displays a mixed color, it can correct the distribution ratio for displaying the mixed color using color coordinate values ​​corresponding to each of at least one primary color. Accordingly, by correcting the color difference existing in a plurality of display blocks, a uniform image can be provided to the user.

[0108] FIG. 6 is a flowchart illustrating a method for displaying a first color-corrected image according to one embodiment.

[0109] According to FIG. 6, according to one embodiment, the operation method may include an operation (S610) of displaying a third primary color on a plurality of display blocks.

[0110] According to one example, the distribution ratio of the primary color may be a distribution ratio per unit area corresponding to each of at least one primary color corresponding to the mixed color. According to one example, the first mixed color may be a color including the first primary color and the third primary color among at least one primary color. According to one example, the display device (100) may display the third primary color on each of a plurality of display blocks to obtain color coordinate values ​​corresponding to the third primary color.

[0111] According to one embodiment, the operation method may include an operation (S620) of identifying a third color distance value corresponding to the third primary color for each of the plurality of display blocks based on the third color coordinate value corresponding to each of the plurality of display blocks and the target color coordinate value corresponding to the third primary color when a third color coordinate value corresponding to the third primary color displayed on the plurality of display blocks is identified.

[0112] According to one example, the display device (100) can identify a third color coordinate value corresponding to the third primary color based on the parameter value obtained from an external device when the third primary color is displayed on a plurality of display blocks.

[0113] According to one example, the display device (100) can identify a third color distance value using a third color coordinate value corresponding to a third primary color and a target color coordinate value corresponding to a third primary color. According to one example, the display device (100) can identify a color distance value for each of a plurality of display blocks using the same target color coordinate value.

[0114] According to one embodiment, the operation method may include an operation (S630) of identifying the distribution ratio of the primary color corresponding to the first mixed color for each of the plurality of display blocks based on a first color distance value and a third color distance value corresponding to each of the plurality of display blocks.

[0115] According to one example, when the first color distance value and the third color distance value are each identified, the display device (100) can identify the distribution ratio corresponding to the first color mixture based on each of the identified values. For example, the display device (100) can identify the distribution ratio of the primary color based on the ratio between the first color distance value and the third color distance value. However, it is not limited thereto, and according to one example, when the first color distance value and the third color distance value are identified, the display device (100) can identify the distribution ratio of the primary color corresponding to the first color mixture using a preset distribution ratio calculation algorithm.

[0116] According to one example, the display device (100) can correct an image based on the identified distribution ratio when a distribution ratio corresponding to a first color mixing is identified. According to one example, the display device (100) can identify a distribution ratio corresponding to each of a plurality of display blocks. The display device (100) can correct an image corresponding to each of a plurality of display blocks based on the identified distribution ratio. The display device (100) can control a plurality of display blocks to display the corrected image.

[0117] FIG. 7 is a flowchart illustrating a method for displaying an image in which the first and second colors are corrected according to one embodiment.

[0118] According to FIG. 7, according to one embodiment, the operation method may include an operation (S710) of displaying a fourth primary color among at least one primary color on a plurality of display blocks.

[0119] According to one example, the distribution ratio of the primary color may be a distribution ratio per unit area corresponding to each of at least one primary color corresponding to the mixed color. According to one example, the second mixed color may be a color including the first primary color and the fourth primary color among at least one primary color. According to one example, the display device (100) may display the fourth primary color on each of a plurality of display blocks to obtain color coordinate values ​​corresponding to the fourth primary color.

[0120] According to one embodiment, the operation method may include an operation (S720) of identifying a fourth color distance value corresponding to the fourth primary color for each of the plurality of display blocks based on the fourth color coordinate value corresponding to each of the plurality of display blocks and the target color coordinate value corresponding to the fourth primary color when a fourth color coordinate value corresponding to the fourth primary color displayed on the plurality of display blocks is identified.

[0121] According to one example, the display device (100) can identify a fourth color coordinate value corresponding to the fourth primary color based on the parameter value obtained from an external device when the fourth primary color is displayed on a plurality of display blocks.

[0122] According to one example, the display device (100) can identify a fourth color distance value using a fourth color coordinate value corresponding to a fourth primary color and a target color coordinate value corresponding to a fourth primary color. According to one example, the display device (100) can identify a color distance value for each of a plurality of display blocks using the same target color coordinate value.

[0123] According to one embodiment, the operation method may include an operation (S730) of identifying the distribution ratio of the primary color corresponding to the second mixing for each of the plurality of display blocks based on a first color distance value and a fourth color distance value corresponding to each of the plurality of display blocks.

[0124] According to one example, when the first color distance value and the fourth color distance value are each identified, the display device (100) can identify the distribution ratio corresponding to the second color mixture based on each of the identified values. For example, the display device (100) can identify the distribution ratio of the primary color corresponding to the second color mixture based on the ratio between the first color distance value and the fourth color distance value. However, it is not limited thereto, and according to one example, when the first color distance value and the fourth color distance value are identified, the display device (100) can identify the distribution ratio of the primary color corresponding to the second color mixture using a preset distribution ratio calculation algorithm.

[0125] According to one example, the display device (100) can correct an image based on the identified distribution ratio when a distribution ratio corresponding to a second color mixing is identified. According to one example, the display device (100) can identify a distribution ratio corresponding to each of a plurality of display blocks. The display device (100) can correct an image corresponding to each of a plurality of display blocks based on the identified distribution ratio. The display device (100) can control a plurality of display blocks to display the corrected image.

[0126] According to one embodiment, the method of operation may include an operation (S740) of correcting an image corresponding to each of a plurality of display blocks based on a distribution ratio corresponding to a first color mixing and a distribution ratio corresponding to a second color mixing. According to one example, the display device (100) may correct an image based on each of a distribution ratio corresponding to a first color mixing and a distribution ratio corresponding to a second color mixing. According to one example, the display device (100) may correct an image corresponding to each of a plurality of display blocks based on a distribution ratio corresponding to a first color mixing and a distribution ratio corresponding to a second color mixing for each of a plurality of display blocks.

[0127] FIG. 8 is a drawing for explaining a method of correcting an image corresponding to each of a plurality of display blocks based on a dithering ratio according to one embodiment.

[0128] Referring to FIG. 8, according to one example, the display device (100) may include a plurality of display blocks (800). According to one example, the display device (100) may display a single image by tiling through a plurality of display blocks. According to one example, the display device (100) may display a single image by tiling by dividing the image to identify a sub-image to be displayed on each of the plurality of display blocks and displaying the identified sub-image on each of the display blocks.

[0129] According to one example, the display device (100) can display a first primary color among at least one primary color on a plurality of display blocks. According to one example, the display device (100) can display the first primary color on each of the plurality of display blocks.

[0130] According to one example, the display device (100) can identify a first brightness value for each of a plurality of display blocks. For example, when a first primary color is displayed on a plurality of display blocks, a first brightness value corresponding to each of the plurality of display blocks can be measured through an external device. According to one example, the display device (100) can obtain the first brightness value corresponding to each of the measured plurality of display blocks from an external device through a communication circuit.

[0131] According to one example, the display device (100) can identify a first minimum brightness value among the first brightness values ​​corresponding to each of the plurality of display blocks when each of the first brightness values ​​corresponding to the first primary color displayed on the plurality of display blocks is identified.

[0132] For example, a case may be assumed in which a first brightness value corresponding to a first block (820) among a plurality of display blocks is identified as a first minimum brightness value. The display device (100) can identify a first brightness value corresponding to a first primary color (e.g., red) for a second block (810) that is different from the first block (820). The display device (100) can identify the ratio of the first brightness value of the second block (810) to the first minimum brightness value as 133.33%.

[0133] According to one example, when the ratio of a first brightness value of a second block (810) to a first minimum brightness value is identified, the display device (100) can calculate the reciprocal of the identified ratio and identify the calculated reciprocal as a first dithering ratio corresponding to the first primary color of the second block (810). For example, when the ratio of a first brightness value of the second block (810) is identified as 133.33%, the display device (100) can calculate 75% as the reciprocal of the identified ratio. The display device (100) can identify the calculated 75% as a first dithering ratio corresponding to the second block (810).

[0134] According to one example, the display device (100) can correct an image corresponding to each of a plurality of display blocks based on a first dithering ratio identified for each of a plurality of display blocks. According to one example, black noise (813) corresponding to the first dithering ratio corresponding to a second block (810) may be displayed in the corrected image.

[0135] For example, the ratio of primary colors (or the ratio of pixels (812) corresponding to primary colors) excluding black noise (813) per unit area (811-1) within the second block (810) corresponding to the image before correction may be 100%. In other words, when the first primary color is displayed in the second block (810), the ratio of the first primary color displayed per unit area (811-1) may be 100%. When the first dithering ratio is calculated to be 75%, the ratio of pixels (812) corresponding to the first primary color per unit area (812-1) within the second block (810) corresponding to the image after correction may be 75%.

[0136] However, this is not limited to this, and it goes without saying that the dithering ratio may be changed through a pre-set algorithm, and the ratio of the first primary color per unit area may be calculated based on the changed value.

[0137] Meanwhile, according to one example, black noise (813) may be placed based on a preset algorithm or arbitrarily within an area corresponding to the first primary color.

[0138] FIG. 9 is a drawing for explaining a method of correcting an image corresponding to each of a plurality of display blocks based on the distribution ratio of primary colors according to one embodiment.

[0139] Referring to FIG. 9, according to one example, when a first color coordinate value corresponding to a first primary color (912) displayed on a plurality of display blocks (900) is identified, the display device (100) can identify a first color distance value corresponding to the first primary color (912) for each of the plurality of display blocks (900) based on the first color coordinate value corresponding to each of the plurality of display blocks (900) and the target color coordinate value corresponding to the first primary color (912).

[0140] For example, when a first primary color (912) is displayed on the second block (910) and a parameter value corresponding to each of the second blocks (910) is obtained from an external device, the display device (100) can identify a first color coordinate value corresponding to the first primary color (912) based thereon. Based on the first color coordinate value corresponding to the second block (910) and the target color coordinate value corresponding to the first primary color (912), the display device (100) can identify a first color distance value corresponding to the first primary color (912) for each of the second blocks (910).

[0141] According to one example, the display device (100) can identify the distribution ratio of primary colors corresponding to the first color mixture for each of the plurality of display blocks (900) based on a first color distance value corresponding to each of the plurality of display blocks (900). According to one example, the distribution ratio of primary colors may be a distribution ratio per unit area corresponding to each of at least one primary color corresponding to the first color mixture. According to one example, the color mixture may be a color in which a plurality of primary colors are mixed at a preset distribution ratio. According to one example, the preset ratio may be a ratio of the number of pixels corresponding to each primary color per unit area, but is not limited thereto. According to one example, the first color mixture may be a color including the first primary color (912) and the third primary color.

[0142] For example, a case where the reference distribution ratio of the first primary color corresponding to the first color mixture is 50% (911-1) can be assumed. The display device (100) can identify (or update) the distribution ratio of the first primary color to 75% based on the first color distance value corresponding to the second block (910). In this case, the display device (100) can identify the distribution ratio of the first primary color using a preset algorithm, or identify the distribution ratio of the first primary color based on information regarding the distribution ratio corresponding to the magnitude of the color distance value. According to one example, as the first color distance value increases, the distribution ratio of the first primary color may decrease, but is not limited thereto.

[0143] For example, a case (911-1) can be assumed in which the distribution ratio of the first primary color (912) corresponding to the first color mixture is 50% and the distribution ratio of the third primary color (914) is 50%. The display device (100) may update the distribution ratio of the primary color corresponding to the first color mixture based on the first color distance value corresponding to the first primary color (912) and the third color distance value corresponding to the third primary color (914) (e.g., the third color distance value of FIG. 6). As an example, the display device (100) may identify the distribution ratio of the first primary color (912) as 75% and the distribution ratio of the third primary color (914) as 25% based on the ratio of the third color distance value to the first color distance value. Alternatively, the display device (100) may identify the distribution ratios of the first primary color (912) and the third primary color (914), respectively, using a preset algorithm. Alternatively, the display device (100) may identify the distribution ratio of the first primary color (912) corresponding to the first mixed color based on information regarding the distribution ratio corresponding to the magnitude of the color distance value.

[0144] According to one example, when the distribution ratio of the primary color corresponding to the first color mixture is identified, the display device (100) can correct the image corresponding to each of the plurality of display blocks (900) based on the identified distribution ratio. According to one example, when the image is corrected (911-2), the distribution ratio of the first primary color (912) and the third primary color (914) per unit area corresponding to the first color mixture may be different from the case before the image is corrected (911-1). According to one example, the display device (100) can display the corrected image on each of the plurality of display blocks (900).

[0145] According to one example, the display device (100) can obtain a corrected image based on each of the identified dithering ratio and the identified primary color distribution ratio. For example, the display device (100) may assume a case where the first dithering ratio for the first primary color (912) is 75%. When displaying the first mixed color, the display device (100) may display the first primary color (912) containing 25% black noise (913) based on the distribution ratio of the first primary color (912) corresponding to the first mixed color.

[0146] FIGS. 10a and FIGS. 10b are drawings for illustrating a display panel according to one embodiment.

[0147] According to FIG. 10a and FIG. 10b, according to one embodiment, the display panels (1000-1 and 1000-2) may include an Electrophoretic Display (EPD) film and a Thin-Film Transistor (TFT) substrate.

[0148] According to one example, referring to FIG. 10a, a display panel (1000-1) may include a plurality of display blocks, and each of the plurality of display blocks may include a corresponding EPD film and a TFT substrate. For example, among the plurality of display blocks included in the display panel (1000-1), a seventh display block may include an EPD film (1001) corresponding to the seventh display block and a TFT substrate (1010-1) corresponding to the seventh display block. Likewise, an EPD film and a TFT substrate corresponding to each of the plurality of display blocks included in the display panel (1000-1) may be provided in the display panel (1000-1). According to one example, the display panel (1000-1) may each include an EPD film corresponding to the number of display blocks and a TFT substrate corresponding to the number of display blocks. Accordingly, the display panel (1000-1) may include a plurality of independently configured TFT substrates.

[0149] Alternatively, according to one example, referring to FIG. 10b, the display panel (1000-2) may include a plurality of EPD films provided on a single TFT substrate (1010-2). According to one example, each of the plurality of display blocks may include an EPD film and a TFT substrate. According to one example, each of the plurality of display blocks may include a corresponding EPD film. However, unlike as shown in FIG. 10a, an EPD film corresponding to each of the plurality of display blocks may be provided on a single TFT substrate (1010-2). For example, among the plurality of display blocks included in the display panel (1000-2), the seventh display block may include an EPD film (1001) corresponding to the seventh display block. However, the EPD film (1001) is not provided on an independent TFT substrate corresponding to the 7th display block, and the EPD film (1001) corresponding to the 7th display block may be provided on a single TFT substrate (1010-2).

[0150] Meanwhile, according to one example, the display panel (1000-2) according to FIG. 10b includes a single TFT substrate (1010-2), so it can be implemented as a bezel-less display panel without a bezel between the EPD films corresponding to each of the plurality of display blocks.

[0151] Meanwhile, returning to FIG. 2, a display panel (1000-1 and 1000-2) according to one embodiment of the present disclosure may include a barrier film. According to one example, the barrier film may be a plastic type film for blocking the penetration of moisture or oxygen into a display device, but is not limited thereto and may, of course, be implemented with a film of a different material. According to one example, the display panel (1000-1 and 1000-2) may include a single barrier film. However, it is not limited thereto.

[0152] FIG. 11 is a block diagram showing the detailed configuration of a display device according to one embodiment.

[0153] According to FIG. 11, a display device (100') may include a display panel (110), at least one processor (120), memory (130), user interface (140), communication circuit (150), speaker (160), microphone (170), and at least one sensor (180). A detailed description of configurations shown in FIG. 11 that overlap with configurations shown in FIG. 2 will be omitted.

[0154] The user interface (140) is a configuration for the display device (100') to perform interaction with the user. For example, the user interface (140) may include at least one of a touch sensor, a motion sensor, a button, a jog dial, a switch, a microphone, or a speaker, but is not limited thereto.

[0155] The communication circuit (150) can input and output various types of data. For example, the communication circuit (150) can transmit and receive various types of data to and from an external device (e.g., source device), an external storage medium (e.g., USB memory), an external server (e.g., web hard drive) through communication methods such as AP-based Wi-Fi (Wi-Fi, Wireless LAN network), Bluetooth, Zigbee, wired / wireless LAN (Local Area Network), WAN (Wide Area Network), Ethernet, IEEE 1394, HDMI (High-Definition Multimedia Interface), USB (Universal Serial Bus), MHL (Mobile High-Definition Link), AES / EBU (Audio Engineering Society / European Broadcasting Union), Optical, Coaxial, etc.

[0156] According to one example, the communication circuit (150) may include a BLE (Bluetooth Low Energy) module. BLE refers to Bluetooth technology capable of transmitting and receiving low-power, low-capacity data in a 2.4 GHz frequency band with a range of about 10 m. However, it is not limited thereto, and the communication circuit (150) may include a Wi-Fi communication module. That is, the communication circuit (150) may include at least one of a BLE (Bluetooth Low Energy) module or a Wi-Fi communication module.

[0157] According to one embodiment, the speaker (160) may be composed of a tweeter for reproducing high-frequency sound, a midrange for reproducing mid-frequency sound, a woofer for reproducing low-frequency sound, a subwoofer for reproducing ultra-low-frequency sound, an enclosure for controlling resonance, and a crossover network for dividing the frequency of an electrical signal input to the speaker into bands.

[0158] According to one embodiment, the speaker (160) can output an acoustic signal to the outside of the display device (100'). The speaker (160) can output multimedia playback, recording playback, various notification sounds, voice messages, etc. The display device (100') may include an audio output device such as the speaker (160), but may include an output device such as an audio output terminal. In particular, the speaker (160) can provide acquired information, information processed or produced based on the acquired information, response results to user voice or operation results, etc., in the form of voice.

[0159] The microphone (170) may refer to a module that acquires sound and converts it into an electrical signal, and may be a condenser microphone, ribbon microphone, moving coil microphone, piezoelectric element microphone, carbon microphone, or MEMS (Micro Electro Mechanical System) microphone. Additionally, it may be implemented in omnidirectional, bidirectional, unidirectional, subcardioid, supercardioid, or hypercardioid modes. According to one embodiment, the display device (100') may include the microphone (170) and an inner microphone, and the microphone (170) may be a microphone located relatively outside the body. According to one example, the display device (100') may acquire an audio signal including external noise through the microphone (170). According to one embodiment, the microphone (170) may be positioned in a direction opposite to the direction in which the speaker (160) emits sound.

[0160] At least one sensor (180, hereinafter referred to as the sensor) may include a plurality of sensors of various types. The sensor (180) may measure physical quantities or detect the operating state of a display device (100') and convert the measured or detected information into an electrical signal. The sensor (180) may include a camera, and the camera may include a lens that focuses visible light or other optical signals received by being reflected by an object onto an image sensor, and an image sensor capable of detecting visible light or other optical signals. Here, the image sensor may include a 2D pixel array divided into a plurality of pixels. Alternatively, at least one sensor (180) may include a temperature sensor or an infrared sensor.

[0161] According to the example described above, the display device (100') corrects the image by taking into account the difference in optical characteristics of each of the plurality of display blocks, thereby enabling the user to receive a uniform image even when the image is divided and displayed through the plurality of display blocks.

[0162] According to the example described above, when the display device (100') displays a mixed color, it can correct the distribution ratio for displaying the mixed color using color coordinate values ​​corresponding to each of at least one primary color. Accordingly, the color difference existing in a plurality of display blocks is corrected, and a uniform image can be provided to the user.

[0163] Meanwhile, the methods according to the various embodiments of the present disclosure described above may be implemented in the form of an application installable on an existing display device. Alternatively, the methods according to the various embodiments of the present disclosure described above may be performed using a deep learning-based learned neural network (or deep learned neural network), that is, a learning network model. Furthermore, the methods according to the various embodiments of the present disclosure described above may be implemented solely through a software upgrade or a hardware upgrade of the existing display device. Additionally, the various embodiments of the present disclosure described above may also be performed through an embedded server equipped in the display device or an external server of the display device.

[0164] Meanwhile, according to the exemplary embodiments of the present disclosure, the various embodiments described above may be implemented as software comprising instructions stored on a machine-readable storage medium (e.g., a computer). The machine may include a display device (e.g., a display device (A)) according to the disclosed embodiments, which is a device capable of calling instructions stored from the storage medium and operating according to the called instructions. When instructions are executed by a processor, the processor may perform a function corresponding to the instructions directly or by using other components under the control of the processor. Instructions may include code provided 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, "non-transitory" means only that the storage medium does not contain a signal and is tangible, and does not distinguish whether data is stored semi-permanently or temporarily in the storage medium.

[0165] Additionally, according to one embodiment, the method according to the various embodiments described above may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed online in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or through an application store (e.g., Play Store™). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or provided on a storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0166] Additionally, each component (e.g., module or program) according to the various embodiments described above may be composed of a single or multiple entities, and some of the aforementioned sub-components may be omitted, or other sub-components may be further included in the various embodiments. Generally or additionally, some components (e.g., module or program) may be integrated into a single entity to perform the functions performed by each of the respective components prior to integration in the same or similar manner. The operations performed by the module, program, or other components according to the various embodiments may be executed sequentially, in parallel, iteratively, or heuristically, or at least some operations may be executed in a different order, omitted, or other operations added.

[0167] Although preferred embodiments of the present disclosure have been illustrated and described above, the present disclosure is not limited to the specific embodiments described above. It is understood that various modifications can be made by those skilled in the art without departing from the essence of the present disclosure as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present disclosure.

Claims

1. In a display device, A display panel comprising a plurality of display blocks; At least one processor including processing circuitry; and Includes memory for storing instructions; and When the above instructions are executed individually or collectively by the at least one processor, the display device, At least one primary color, a first primary color, is displayed on the plurality of display blocks, and When a first lightness value corresponding to the first primary color displayed on the plurality of display blocks is identified, a first minimum lightness value among the first lightness values ​​corresponding to each of the plurality of display blocks is identified, and Based on a first brightness value corresponding to each of the plurality of display blocks and a first minimum brightness value, a first dithering ratio corresponding to the first primary color is identified for each of the plurality of display blocks, and Correcting an image corresponding to each of the plurality of display blocks based on the first dithering ratio identified for each of the plurality of display blocks, and A display device that allows each of the above plurality of display blocks to display a corrected image.

2. In Paragraph 1, When the above instructions are executed individually or collectively by the at least one processor, the display device, Displaying a second primary color among the above at least one primary color on the plurality of display blocks, When a second brightness value corresponding to the second primary color displayed on the plurality of display blocks is identified, a second minimum brightness value among the second brightness values ​​corresponding to each of the plurality of display blocks is identified, and Based on a second brightness value corresponding to each of the plurality of display blocks and a second minimum brightness value, a second dithering ratio corresponding to the second primary color is identified for each of the plurality of display blocks, and Correcting an image corresponding to each of the plurality of display blocks based on the first dithering ratio and the second dithering ratio identified for each of the plurality of display blocks, and A display device that allows each of the above plurality of display blocks to display a corrected image.

3. In Paragraph 1, When the above instructions are executed individually or collectively by the at least one processor, the display device, When a first color coordinate value corresponding to the first primary color displayed on the plurality of display blocks is identified, a first color distance value corresponding to the first primary color is identified for each of the plurality of display blocks based on the first color coordinate value corresponding to each of the plurality of display blocks and the target color coordinate value corresponding to the first primary color. Based on a first color distance value corresponding to each of the plurality of display blocks, the distribution ratio of the primary color corresponding to the first mixed color for each of the plurality of display blocks is identified, and Correcting the image corresponding to each of the plurality of display blocks based on the distribution ratio of the primary colors identified above, and A display device that allows each of the above plurality of display blocks to display a corrected image.

4. In Paragraph 3, The above first mixed color is, The color is one that includes the first primary color and the third primary color among the above at least one primary color, and When the above instructions are executed individually or collectively by the at least one processor, the display device, The above third primary color is displayed on the plurality of display blocks, and When a third color coordinate value corresponding to the third primary color displayed on the plurality of display blocks is identified, a third color distance value corresponding to the third primary color is identified for each of the plurality of display blocks based on the third color coordinate value corresponding to each of the plurality of display blocks and the target color coordinate value corresponding to the third primary color. A display device that identifies the distribution ratio of the primary color corresponding to the first mixing for each of the plurality of display blocks based on a first color distance value and a third color distance value corresponding to each of the plurality of display blocks.

5. In Paragraph 4, When the above instructions are executed individually or collectively by the at least one processor, the display device, Displaying a fourth primary color among the above at least one primary color on the plurality of display blocks, When a fourth color coordinate value corresponding to the fourth primary color displayed on the plurality of display blocks is identified, a fourth color distance value corresponding to the fourth primary color is identified for each of the plurality of display blocks based on the fourth color coordinate value corresponding to each of the plurality of display blocks and the target color coordinate value corresponding to the fourth primary color. Based on the first color distance value and the fourth color distance value corresponding to each of the plurality of display blocks, the distribution ratio of the primary color corresponding to the second mixing for each of the plurality of display blocks is identified, and Based on the distribution ratio corresponding to the first color mixing and the distribution ratio corresponding to the second color mixing, the image corresponding to each of the plurality of display blocks is corrected, and The above second mixed color is, A display device having a color including the first primary color and the fourth primary color.

6. In Paragraph 3, The distribution ratio of the above primary colors is, A display device having a distribution ratio per unit area corresponding to each of at least one primary color corresponding to the first color mixture above.

7. In Paragraph 1, When the above instructions are executed individually or collectively by the at least one processor, the display device, A display device that displays a single image by tiling it through the plurality of display blocks.

8. In Paragraph 1, The above first dithering ratio is, A display device that is the ratio of primary colors excluding black noise per unit area.

9. In Paragraph 1, The above display panel is, A display device implemented as an electrophoretic display.

10. In Paragraph 1, The above display panel is, Each of the plurality of EPD (electrophoretic display) films and a plurality of TFT (thin-film transistor) substrates corresponding to each of the plurality of EPD films is included, Each of the above plurality of display blocks includes a corresponding EPD film and a TFT substrate, respectively. A display device having a barrier film provided in one area on the above-mentioned display panel.

11. In Paragraph 1, The above display panel is, Each comprises a single thin-film transistor (TFT) substrate and a plurality of electrophoretic display (EPD) films provided in a region on the single TFT substrate, and Each of the above plurality of display blocks includes a corresponding EPD film, and A display device having a barrier film provided in one area of ​​the above-mentioned display panel.

12. A method of operating a display device comprising a display panel including a plurality of display blocks, The operation of displaying a first primary color among at least one primary color on the plurality of display blocks; When a first lightness value corresponding to the first primary color displayed on the plurality of display blocks is identified, an operation to identify a first minimum lightness value among the first lightness values ​​corresponding to each of the plurality of display blocks; An operation of identifying a first dithering ratio corresponding to the first primary color for each of the plurality of display blocks based on a first brightness value corresponding to each of the plurality of display blocks and the first minimum brightness value; An operation to correct an image corresponding to each of the plurality of display blocks based on the first dithering ratio identified for each of the plurality of display blocks; and A method of operation comprising: an operation in which each of the plurality of display blocks displays a corrected image.

13. In Paragraph 12, The operation of displaying a second primary color among the at least one primary color on the plurality of display blocks; When a second brightness value corresponding to the second primary color displayed on the plurality of display blocks is identified, an operation to identify a second minimum brightness value among the second brightness values ​​corresponding to each of the plurality of display blocks; An operation of identifying a second dithering ratio corresponding to the second primary color for each of the plurality of display blocks based on a second brightness value corresponding to each of the plurality of display blocks and the second minimum brightness value; An operation of correcting an image corresponding to each of the plurality of display blocks based on the first dithering ratio and the second dithering ratio identified for each of the plurality of display blocks; and A method of operation comprising: an operation in which each of the plurality of display blocks displays a corrected image.

14. In Paragraph 12, When a first color coordinate value corresponding to the first primary color displayed on the plurality of display blocks is identified, an operation of identifying a first color distance value corresponding to the first primary color for each of the plurality of display blocks based on the first color coordinate value corresponding to each of the plurality of display blocks and the target color coordinate value corresponding to the first primary color; An operation of identifying the distribution ratio of a primary color corresponding to a first mixed color for each of the plurality of display blocks based on a first color distance value corresponding to each of the plurality of display blocks; An operation to correct an image corresponding to each of the plurality of display blocks based on the distribution ratio of the primary colors identified above; and A method of operation comprising: an operation in which each of the plurality of display blocks displays a corrected image.

15. In Paragraph 14, The above first mixed color is, The color is one that includes the first primary color and the third primary color among the above at least one primary color, and The above method of operation is, The operation of displaying the above third primary color on the plurality of display blocks; When a third color coordinate value corresponding to the third primary color displayed on the plurality of display blocks is identified, an operation of identifying a third color distance value corresponding to the third primary color for each of the plurality of display blocks based on the third color coordinate value corresponding to each of the plurality of display blocks and the target color coordinate value corresponding to the third primary color; and A method of operation comprising: identifying the distribution ratio of the primary color corresponding to the first color mixing for each of the plurality of display blocks based on a first color distance value and a third color distance value corresponding to each of the plurality of display blocks.

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