Display device

Abstract

A display apparatus is disclosed. The display apparatus includes a display panel including a first display area and a second display area adjacent to each other, and a first data driver and a second data driver configured to drive the first display area and the second display area, respectively, wherein the first data driver includes a first ghost detector configured to receive an input image and detect a first ghost area including a ghost of the first display area from the input image, a first comparator configured to compare a ghost detection result of the first display area with a ghost detection result of the second display area received from the second data driver, and a first coordinate corrector configured to correct a coordinate of the first ghost area in response to the ghost detection result of the first display area and the ghost detection result of the second display area satisfying a preset reference.

Description

Technical Field

[0001] Some aspects of embodiments of this disclosure relate to display devices. Background Technology

[0002] Afterimages may occur when a display device displays a fixed image for a considerable period of time. When a display device displays a fixed image for a considerable period of time and then displays a non-fixed image, the area displaying the fixed image may show blemishes. Therefore, when afterimages occur in a display device, the display quality may deteriorate.

[0003] The information disclosed in this background section is only intended to enhance the understanding of the background art, and therefore the information discussed in this background section does not necessarily constitute prior art. Summary of the Invention

[0004] Some aspects of embodiments of this disclosure include a display device that, when the screen is split-driven, accurately detects the afterimage regions of adjacent display areas to generate compensation data voltages for saturation or brightness correction, thereby preventing or reducing the occurrence of afterimages, reducing color shift, and improving display quality.

[0005] However, the aspects of this disclosure are not limited to those set forth herein. These and other aspects of this disclosure will become more apparent to those skilled in the art upon reference to the following detailed description of the disclosure.

[0006] According to some embodiments of this disclosure, a display device includes: a display panel including a first display area and a second display area disposed adjacent to each other; and a first data driver and a second data driver configured to drive the first display area and the second display area, respectively. The first data driver includes: a first afterimage detection unit configured to receive an input image and detect a first afterimage area including the afterimage of the first display area from the input image; a first comparison unit configured to compare the afterimage detection result of the first display area with the afterimage detection result of the second display area received from the second data driver; and a first coordinate correction unit configured to correct the coordinates of the first afterimage area when the afterimage detection result of the first display area and the afterimage detection result of the second display area satisfy a preset reference.

[0007] According to some implementations, the second data driver may include: a second afterimage detection unit configured to detect a second afterimage region including the afterimage of the second display area; a second comparison unit configured to compare the afterimage detection result of the second display area with the afterimage detection result of the first display area; and a second coordinate correction unit configured to correct the coordinates of the second afterimage region when the afterimage detection result of the second display area and the afterimage detection result of the first display area meet a preset reference.

[0008] According to some implementations, the first data driver can transmit the afterimage detection result of the first display area to the second data driver, and can receive the afterimage detection result of the second display area from the second data driver.

[0009] According to some embodiments, the display panel may further include a third display area adjacent to the second display area. The display device may further include a third data driver configured to drive the third display area. The third data driver may include: a third afterimage detection unit configured to detect a third afterimage area of ​​the third display area including the afterimage; a third comparison unit configured to compare the afterimage detection result of the third display area with the afterimage detection result of the second display area; and a third coordinate correction unit configured to correct the coordinates of the third afterimage area when the afterimage detection result of the third display area and the afterimage detection result of the second display area satisfy a preset reference.

[0010] According to some implementations, the second data driver may further include a communication unit configured to determine whether to receive afterimage detection results from the first and third data drivers. When the second data driver receives afterimage detection results from each of the first and third data drivers via the communication unit, the second data driver may compare the afterimage detection results of the second display area with the afterimage detection results of each of the first and third display areas.

[0011] According to some implementations, in response to the second data driver not receiving a ghost image detection result from one of the first and third data drivers, the second data driver can compare the ghost image detection result of the second display area with the ghost image detection result received from the other of the first and third data drivers.

[0012] According to some implementations, the first superfluous image detection unit may include: a type determination module configured to determine the type of superfluous image in the first superfluous image region; a superfluous image detection module configured to detect the probability of existence of superfluous image in the first superfluous image region; and a coordinate detection module configured to detect the coordinates of the first superfluous image region.

[0013] According to some implementations, the first comparison unit may include: a type comparison module configured to compare the type of the superimposed image in the first superimposed image region with the type of the superimposed image in the second superimposed image region; a probability comparison module configured to compare the existence probability of the superimposed image in the first superimposed image region with the existence probability of the superimposed image in the second superimposed image region; and a coordinate comparison module configured to compare the coordinates of the first superimposed image region with the coordinates of the second superimposed image region.

[0014] According to some implementation methods, the probability comparison module can compare the existence probability of the superimposed image in each of the first superimposed image region and the second superimposed image region with a preset reference probability, and can compare the difference between the existence probabilities of the superimposed images in the first superimposed image region and the second superimposed image region with a preset reference error.

[0015] According to some implementations, the coordinate comparison module can compare at least one of the following: the coordinate difference between the first redundant image region and the second redundant image region in a first direction; the coordinate difference between the upper ends of the first redundant image region and the second redundant image region in a second direction; and the coordinate difference between the lower ends of the first redundant image region and the second redundant image region in a second direction.

[0016] According to some implementations, the first coordinate correction unit can extend the coordinates of the first redundant image area in the first direction to the boundary line between the first display area and the second display area, and can adjust the coordinates of the first redundant image area in the second direction to the average of the coordinates of the first redundant image area in the second direction and the coordinates of the second redundant image area in the second direction.

[0017] According to some implementations, the first coordinate correction unit can extend the coordinates of the first redundant image area in the first direction to the boundary line between the first display area and the second display area, and can adjust the coordinates of the first redundant image area in the second direction to the larger value of the upper coordinates of the first redundant image area and the second redundant image area in the second direction, or the smaller value of the lower coordinates of the first redundant image area and the second redundant image area in the second direction.

[0018] According to some implementations, the first redundant image detection unit can detect the number of redundant image pixels and the coordinates of the redundant image pixels in the first display area.

[0019] According to some implementations, the first comparison unit can compare the sum of the number of residual pixels in the first comparison target area of ​​the first display area that is in contact with the boundary line between the first display area and the second display area, and the second comparison target area of ​​the second display area that is in contact with the boundary line, with a preset reference number.

[0020] According to some implementations, the length of the first comparison target region in the first direction can have a constant value relative to the boundary line, and the length of the first comparison target region in the second direction can be determined based on the upper and lower ends of the first redundant image region and the upper and lower ends of the second redundant image region.

[0021] According to some implementations, the first coordinate correction unit can extend the coordinates of the first redundant image region in the first direction to the boundary line.

[0022] According to some embodiments of this disclosure, a display device includes: a display panel including a first display area and a second display area disposed adjacent to each other; and a first data driver and a second data driver configured to drive the first display area and the second display area respectively. The first data driver includes: a first afterimage detection unit configured to receive an input image and detect a first afterimage area including the afterimage of the first display area from the input image; a first comparison unit configured to compare the distance between the boundary line between the first display area and the second display area and the first afterimage area with a preset reference distance; and a first coordinate correction unit configured to correct the coordinates of the first afterimage area when the distance between the boundary line and the first afterimage area satisfies the preset reference.

[0023] According to some embodiments, the second data driver may include: a second supernumerary image detection unit configured to detect a second supernumerary image region including the supernumerary image in the second display area; a second comparison unit configured to compare the distance between the boundary line and the second supernumerary image region with a preset reference distance; and a second coordinate correction unit configured to correct the coordinates of the second supernumerary image region when the distance between the boundary line and the second supernumerary image region satisfies the preset reference.

[0024] According to some implementations, in response to the distance between the boundary line and the first redundant image region being less than a preset reference distance, the first comparison unit can transmit the redundant image correction signal to the first coordinate correction unit.

[0025] According to some implementations, in response to the first coordinate correction unit receiving the redundant image correction signal, the first coordinate correction unit can extend the coordinates of the first redundant image region to the boundary line.

[0026] In a display device according to some embodiments, even when the persistent image region does not include persistent images adjacent to the boundary line between the display areas, each of the plurality of data drivers can correct the persistent image region to the boundary line. Even when the display areas are driven separately, each of the plurality of data drivers can accurately detect the persistent image regions of adjacent display areas to generate compensation data voltages for saturation or brightness correction. Therefore, the display device can prevent or reduce the occurrence of persistent images in the display areas, reduce color shift, and improve display quality.

[0027] It should be noted that the features of embodiments according to this disclosure are not limited to those described above, and other features of embodiments according to this disclosure will be apparent from the following description. Attached Figure Description

[0028] The above and other aspects and features of embodiments of the present disclosure will become more apparent from the accompanying drawings, which describe some aspects of these embodiments in more detail.

[0029] Figure 1 This is a diagram showing the screen of a display device according to some embodiments;

[0030] Figure 2 This is a plan view showing a display device according to some embodiments;

[0031] Figure 3 This is a block diagram illustrating a display device according to some embodiments;

[0032] Figure 4 This is a diagram illustrating the first to fourth display areas in a display device according to some embodiments;

[0033] Figure 5 This is a block diagram illustrating a first to a fourth data driver in a display device according to some embodiments;

[0034] Figure 6 This is a block diagram illustrating a first residual image detection unit in a display device according to some embodiments;

[0035] Figure 7 This is a block diagram illustrating a first comparison unit in a display device according to some embodiments;

[0036] Figure 8 yes Figure 4 A magnified view of region PA1;

[0037] Figure 9 This is a diagram illustrating the corrected afterimage area in a display device according to some embodiments;

[0038] Figure 10 This is a flowchart illustrating the afterimage processing procedure of a first data driver in a display device according to some embodiments;

[0039] Figure 11 This is a flowchart illustrating the afterimage detection process of a first afterimage detection unit in a display device according to some embodiments;

[0040] Figure 12 This is a flowchart illustrating the communication process of a first communication unit in a display device according to some embodiments;

[0041] Figure 13 This is a flowchart illustrating the afterimage comparison process of the first comparison unit in a display device according to some embodiments;

[0042] Figure 14 This is a flowchart illustrating the coordinate comparison process of a coordinate comparison module in a display device according to some embodiments;

[0043] Figure 15This is a flowchart illustrating the communication process of a second communication unit in a display device according to some embodiments;

[0044] Figure 16 This is a diagram illustrating the first to fourth display areas in a display device according to some embodiments;

[0045] Figure 17 yes Figure 16 A magnified view of region PA2;

[0046] Figure 18 It is shown Figure 16 A flowchart of the afterimage processing procedure of the first data driver in the display device;

[0047] Figure 19 This is a diagram illustrating a first display area in a display device according to some embodiments; and

[0048] Figure 20 It is shown Figure 19 A flowchart of the afterimage processing procedure of the first data driver in the display device. Detailed Implementation

[0049] In the following description, numerous details are set forth for illustrative purposes to provide a thorough understanding of various embodiments or implementations of this disclosure. As used herein, “implementation” and “method” are interchangeable terms and are non-limiting examples of apparatus or methods employing one or more of the implementations or methods disclosed herein. However, it will be apparent that various embodiments can be practiced without these details or with one or more equivalent arrangements. In other instances, structures and apparatus may be shown in block diagram form to avoid unnecessarily obscuring the various embodiments. Furthermore, the various embodiments may be different, but not necessarily exclusive. For example, the shapes, configurations, and characteristics of some embodiments may be used or implemented in other embodiments without departing from the spirit and scope of embodiments according to this disclosure.

[0050] Unless otherwise stated, the embodiments shown are to be understood as providing features of different details in one or more ways in which this disclosure may be practiced in practice. Therefore, unless otherwise stated, features, components, modules, layers, films, panels, regions and / or aspects (hereinafter individually or collectively referred to as “elements”) of various embodiments may be combined, separated, interchanged and / or rearranged without departing from this disclosure.

[0051] The use of crosshairs and / or shading in accompanying drawings is generally to clarify the boundaries between adjacent elements. Therefore, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for materials, material properties, dimensions, scale, commonalities between illustrated elements, and / or any other characteristics, properties, or characteristics of the elements. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of elements may be exaggerated for clarity and / or descriptive purposes. When embodiments can be implemented differently, the order of processes may differ from the order described. For example, two consecutively described processes may be performed substantially simultaneously, or in the reverse order of their description. Moreover, the same reference numerals denote the same elements.

[0052] When a component or layer is referred to as being "on," "connected to," or "attached to" another component or layer, it may be directly on, directly connected to, or attached to the other component or layer, or there may be an intermediate component or layer. However, when a component or layer is referred to as being "directly on," "directly connected to," or "directly attached to" another component or layer, there is no intermediate component or layer. Therefore, the term "connection" can refer to a physical connection, electrical connection, and / or fluid connection, with or without an intermediate component. Furthermore, the X-axis, Y-axis, and Z-axis are not limited to the three axes of a Cartesian coordinate system and can be interpreted in a broader sense. For example, the X-axis, Y-axis, and Z-axis may be substantially perpendicular to each other, or they may represent different directions that are not perpendicular to each other. For the purposes of this disclosure, "at least one of X, Y, and Z" and "at least one selected from the set consisting of X, Y, and Z" can be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z, such as XYZ, XYY, YZ, and ZZ. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0053] The terms “and” and “or” can be used in the sense of conjunctions or antonymous conjunctions, and can be understood as equivalent to “and / or”.

[0054] While the terms “first,” “second,” etc., may be used herein to describe various types of elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another. Therefore, without departing from the teachings of this disclosure, the first element discussed below may be referred to as the second element.

[0055] Spatial relative terms such as “beneath,” “below,” “under,” “lower,” “above,” “upper,” “over,” “higher,” and “side” (e.g., as in “sidewall”) may be used herein for descriptive purposes and thus to describe the relationship of one element to another(s) as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, spatial relative terms are intended to cover different orientations of the device in use, operation, and / or manufacture. For example, if the device in the drawings is flipped, an element described as “below” or “under” other elements or features will then be oriented “above” other elements or features. Thus, the term “below” can encompass both above and below orientations. Furthermore, the device may be oriented in other ways (e.g., rotated 90 degrees or about 90 degrees or in other orientations), and thus the spatial relative descriptive terms used herein shall be interpreted accordingly.

[0056] The term "overlapping" or "overlapping" means that the first object may be above or below the second object, or on one side of the second object, and the second object may be above or below the first object, or on one side of the first object. Additionally, the term "overlapping" may include layering, stacking, facing or confronting, extending over, covering or partially covering, or any other suitable term as will be understood and appreciated by one of ordinary skill in the art.

[0057] When an element is described as “not overlapping” with another element or “...is not overlapping” with another element, this may include the elements being spaced apart from each other, offset from each other, or arranged side by side with each other, or any other suitable terminology as will be understood and appreciated by one of ordinary skill in the art.

[0058] The terms "facing" and "facing" mean that the first element can be directly or indirectly opposite the second element. When a third element is inserted between the first and second elements, the first and second elements can be understood as being indirectly opposite each other, but still facing each other.

[0059] The terminology used herein is for descriptive purposes and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” as used herein are intended to also include the plural forms. Furthermore, when used in this specification, the terms “comprising,” “including,” “including,” and / or “comprising,” “has,” and / or “having,” and / or variations thereof indicate the presence of stated features, integrals, steps, operations, elements, components, and / or sets thereof, but do not preclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than terms of degree, and are therefore used to allow for inherent deviations in measurements, calculated values, and / or provided values ​​that will be recognized by those skilled in the art.

[0060] For example, as used herein, “about” or “approximately” includes the value as well as the average of the specific value within an acceptable range of deviations determined by a person skilled in the art considering the measurement in question and the error associated with the measurement of the specific quantity (i.e., limitations of the measurement system). For example, “about” may mean within one or more standard deviations, or within ±30%, ±20%, ±10%, ±5% of the value.

[0061] Various embodiments are described herein with reference to cross-sectional and / or exploded views, which are schematic diagrams of the embodiments and / or intermediate structures. Therefore, deviations from the illustrated shapes due to, for example, manufacturing techniques and / or tolerances are expected. Consequently, the embodiments disclosed herein should not necessarily be construed as limited to the shapes of the regions shown, but will include deviations in shape due to, for example, manufacturing processes. In this way, the regions shown in the figures may be schematic in nature, and the shapes of these regions may not reflect the actual shapes of the areas of the device, and are therefore not necessarily intended to be limiting.

[0062] The accompanying drawings describe and illustrate one or more embodiments of functional blocks, units, and / or modules. Those skilled in the art will understand that these blocks, units, and / or modules are physically implemented using electronic (or optical) circuits (such as logic circuits, discrete components, microprocessors, hardwired circuits, memory elements, wiring connections, etc.) formed using semiconductor-based fabrication techniques or other manufacturing techniques. Where blocks, units, and / or modules are implemented using microprocessors or other similar hardware, they can be programmed and controlled using software (e.g., microcode) to perform the various functions discussed herein, and optionally, they can be driven by firmware and / or software. It is also contemplated that each block, unit, and / or module can be implemented using dedicated hardware, or as a combination of dedicated hardware performing some functions and a processor (e.g., one or more programmable microprocessors and associated circuitry) performing other functions. Furthermore, without departing from the scope of this disclosure, each block, unit, and / or module of some or more embodiments can be physically divided into two or more interactive and discrete blocks, units, and / or modules. Furthermore, without departing from the scope of this disclosure, blocks, units and / or modules of some or more embodiments may be physically combined into more complex blocks, units and / or modules.

[0063] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Terms, such as those defined in commonly used dictionaries, shall be interpreted as having the same meaning as they have in the context of the relevant art and shall not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0064] Figure 1 This is a diagram showing the screen of a display device according to some embodiments. Figure 2 This is a plan view showing a display device according to some embodiments. Figure 3 This is a block diagram illustrating a display device according to some embodiments.

[0065] refer to Figures 1 to 3 The display device 10 is a device for displaying moving images (e.g., video images) or still images (e.g., static images), and can be used as a display screen for various electronic devices or products (such as televisions, laptops, monitors, billboards, Internet of Things (IoT) devices, or any other suitable electronic device configured to display graphic information or images).

[0066] The display device 10 may include a display panel 100, a timing controller 200, a data driver 300, a power supply unit (or power supply) 400, a gate driver 500, a plurality of flexible films 610 and / or a circuit board 620.

[0067] The display panel 100 may have a rectangular shape in a plan view (e.g., a view perpendicular or orthogonal to the display surface of the display panel 100). For example, in a plan view, the display panel 100 may have a rectangular shape having a long side in a first direction (X-axis direction) and a short side in a second direction (Y-axis direction) perpendicular to the first direction (X-axis direction). The corner formed by the long side in the first direction (X-axis direction) and the short side in the second direction (Y-axis direction) may be a right angle or a rounded corner with curvature (e.g., a set curvature or a predetermined curvature). The planar shape of the display panel 100 is not limited to a rectangular shape and may be formed into other polygonal, circular, or elliptical shapes. For example, the display panel 100 may be formed as a flat surface, but embodiments according to this disclosure are not limited thereto. In another example, the display panel 100 may be bent to have curvature (e.g., a set curvature or a predetermined curvature).

[0068] The display panel 100 may include a display area DA and a non-display area NDA.

[0069] The display area DA, which is an area for displaying images, can be defined as the central area of ​​the display panel 100. The display area DA may include a plurality of pixels SP formed in a pixel area defined by a plurality of data lines DL and a plurality of gate lines GL. Each of the plurality of pixels SP can be connected to a data line DL, a drive voltage line VDDL, and at least one gate line GL. Each of the plurality of pixels SP can be defined as the area of ​​the smallest unit for outputting light.

[0070] The display area DA may include a first display area DA1, a second display area DA2, a third display area DA3, and a fourth display area DA4. The first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4 may be arranged along a first direction (X-axis direction), but the implementation is not limited thereto. The first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4 may be driven by a first data driver 310, a second data driver 320, a third data driver 330, and a fourth data driver 340, respectively. The first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4 may be divided based on the boundary line BND. Furthermore, although in Figures 1 to 3The illustration shows four display areas as an example, but the implementation is not limited to this, and according to some implementations, there may be more than four display areas or fewer than four display areas without departing from the spirit and scope of the implementation according to this disclosure.

[0071] Multiple gate lines GL can be connected between the gate driver 500 and multiple pixels SP. The multiple gate lines GL can provide gate signals to the multiple pixels SP. The multiple gate lines GL can extend in a first direction (X-axis direction) and can be spaced apart from each other in a second direction (Y-axis direction).

[0072] Multiple data lines DL can be connected between the data driver 300 and multiple pixels SP. The multiple data lines DL can provide data voltage to the multiple pixels SP. The multiple data lines DL can extend in a second direction (Y-axis direction) and can be spaced apart from each other in a first direction (X-axis direction).

[0073] Multiple drive voltage lines VDDL can be connected between the power supply unit 400 and multiple pixels SP. The multiple drive voltage lines VDDL can provide drive voltage to the multiple pixels SP. The multiple drive voltage lines VDDL can extend in a second direction (Y-axis direction) and can be spaced apart from each other in a first direction (X-axis direction).

[0074] The non-display area NDA can be defined as the remaining area of ​​the display panel 100 other than the display area DA. For example, the non-display area NDA may include a gate driver 500 that applies gate signals to the gate line GL, a fan-out line that connects the data line DL to the data driver 300, and a pad portion connected to the flexible film 610. In another example, the gate driver 500 may be incorporated into the data driver 300.

[0075] The timing controller 200 can receive timing synchronization signals and image data from the display driver system. The timing controller 200 can generate a data control signal (DCS) and a gate control signal (GCS) based on the timing synchronization signals. The timing controller 200 can use the data control signal (DCS) to control the driving timing of the data driver 300, and use the gate control signal (GCS) to control the driving timing of the gate driver 500. The timing controller 200 can generate pixel data (DATA) based on the image data, arrange the pixel data (DATA) into a layout structure suitable for pixels (SP), and provide the pixel data (DATA) to the first data driver 310, the second data driver 320, the third data driver 330, and the fourth data driver 340.

[0076] Data driver 300 can receive data control signal DCS and pixel data DATA from timing controller 200. Data driver 300 may include a first data driver 310, a second data driver 320, a third data driver 330, and a fourth data driver 340. The first data driver 310, second data driver 320, third data driver 330, and fourth data driver 340 can drive a first display area DA1, a second display area DA2, a third display area DA3, and a fourth display area DA4, respectively. The first data driver 310, second data driver 320, third data driver 330, and fourth data driver 340 can generate data voltages based on pixel data DATA and provide these data voltages to the first display area DA1, second display area DA2, third display area DA3, and fourth display area DA4, respectively, according to the data control signal DCS. The data voltages can be provided to multiple pixels SP via data line DL to determine the brightness of the multiple pixels SP. By dividing the display area DA and using multiple data drivers 300, the display device 10 can easily perform high-resolution driving.

[0077] The power supply unit 400 can provide power voltage to multiple pixels SP. The power supply unit 400 can generate a driving voltage and provide it to the multiple pixels SP arranged in the display panel 100 via the driving voltage line VDDL. The power supply unit 400 can generate a common voltage and provide it to a low-potential line of the display panel 100. For example, the driving voltage can correspond to a high-potential voltage capable of driving multiple pixels SP, and the common voltage can correspond to a low-potential voltage commonly provided to the multiple pixels SP.

[0078] The gate driver 500 can generate gate signals based on the gate control signal GCS provided from the timing controller 200, and sequentially provide the gate signals to multiple gate lines GL according to a preset order. For example, the gate driver 500 can be located in the non-display area NDA of the display panel 100. In another example, the gate driver 500 can be incorporated into the data driver 300.

[0079] Multiple flexible films 610 can mount multiple data drivers 300 and can connect circuit boards 620 to the pad portions of display panel 100. Input terminals located on one side of the flexible film 610 can be attached to circuit board 620 via film adhesion process, and output terminals located on the other side of the flexible film 610 can be attached to the pad portions of display panel 100 via film adhesion process. For example, the flexible film 610 can be a bendable flexible film, such as a tape-on-film package or chip-on-film. For example, the flexible film 610 can be bent toward the lower portion of display panel 100 to reduce the bezel area of ​​display device 10, but is not limited thereto.

[0080] The circuit board 620 can support the timing controller 200 and the power supply unit 400, and provide various signals and power to the data driver 300. For example, the circuit board 620 can provide signals from the timing controller 200 and source voltage from the power supply unit 400 to the data driver 300 and the gate driver 500 to display an image through each pixel SP. For this purpose, signal lines and multiple power lines can be arranged in the circuit board 620.

[0081] Figure 4 This is a diagram showing the first to fourth display areas in a display device according to some embodiments.

[0082] refer to Figure 4 The first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4 can divide and display an image. When the image includes captions, signs, or banners, the first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4 can display a fixed image for a considerable period of time. A fixed image for a considerable period of time may cause afterimages or blemishes in the first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4.

[0083] The first data driver 310, the second data driver 320, the third data driver 330, and the fourth data driver 340 can receive an input image and detect, within the input image, a first redundant image region AIA1, a second redundant image region AIA2, a third redundant image region AIA3, and a fourth redundant image region AIA4, including redundant image AI, within the first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4. For example, the first redundant image region AIA1, the second redundant image region AIA2, the third redundant image region AIA3, and the fourth redundant image region AIA4 can have different shapes, but the implementation is not limited to this.

[0084] The first data driver 310 can drive a first display area DA1 to prevent or reduce afterimages in the first display area DA1. The first data driver 310 can detect a first afterimage area AIA1, including afterimage AI, in the first display area DA1. The first afterimage area AIA1 may not include afterimage AI adjacent to the boundary line BND between the first display area DA1 and the second display area DA2. The first data driver 310 can compare the afterimage detection results of the first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4 to correct the coordinates of the first afterimage area AIA1. The first data driver 310 can adjust the brightness of the corrected afterimage area to generate a compensation data voltage. Therefore, the first data driver 310 can prevent or reduce the occurrence of afterimages in the first display area DA1, reduce color shift, and improve display quality.

[0085] The second data driver 320, the third data driver 330, and the fourth data driver 340 can respectively prevent or reduce the occurrence of afterimages in the second display area DA2, the third display area DA3, and the fourth display area DA4. The operation of the first data driver 310 will be primarily described below, and some redundant configurations of the second data driver 320, the third data driver 330, and the fourth data driver 340 will be briefly described or may be omitted.

[0086] Figure 5 This is a block diagram illustrating a first to a fourth data driver in a display device according to some embodiments. Figure 6 This is a block diagram illustrating a first afterimage detection unit (or first afterimage detector) in a display device according to some embodiments. Figure 7 This is a block diagram illustrating a first comparison unit (or first comparator) in a display device according to some embodiments. Figure 8 yes Figure 4 A magnified view of region PA1. Figure 9 This is a diagram illustrating the corrected afterimage area in a display device according to some embodiments.

[0087] refer to Figures 5 to 9 The data drive 300 may include a first data drive 310, a second data drive 320, a third data drive 330, and a fourth data drive 340.

[0088] The first data driver 310 may include a first afterimage detection unit (or first afterimage detector) 311, a first communication unit (or first communicator) 312, a first comparison unit (or first comparator) 313, a first coordinate correction unit (or first coordinate corrector) 314, and a first data compensation unit (or first data compensator) 315. The second data driver 320 may include a second afterimage detection unit (or second afterimage detector) 321, a second communication unit (or second communicator) 322, a second comparison unit (or second comparator) 323, a second coordinate correction unit (or second coordinate corrector) 324, and a second data compensation unit (or second data compensator) 325. The third data driver 330 may include a third afterimage detection unit (or third afterimage detector) 331, a third communication unit (or third communicator) 332, a third comparison unit (or third comparator) 333, a third coordinate correction unit (or third coordinate corrector) 334, and a third data compensation unit (or third data compensator) 335. The fourth data driver 340 may include a fourth afterimage detection unit (or fourth afterimage detector) 341, a fourth communication unit (or fourth communicator) 342, a fourth comparison unit (or fourth comparator) 343, a fourth coordinate correction unit (or fourth coordinate corrector) 344, and a fourth data compensation unit (or fourth data compensator) 345. The operation of the first data driver 310 will be primarily described below, and the redundant configurations of the second data driver 320, the third data driver 330, and the fourth data driver 340 will be briefly described or omitted.

[0089] The first afterimage detection unit 311 can receive an input image and detect a first afterimage region AIA1 including afterimage AI in a first display area DA1. Afterimage AI of the input image may be generated when the input image has a fixed image over a considerable period of time. The first afterimage detection unit 311 can use at least one of convolutional neural network technology, deep learning technology, and artificial intelligence technology to detect afterimage AI, and can define a first afterimage region AIA1 including the area in which afterimage AI is displayed. For example, the first afterimage detection unit 311 can analyze the histogram of grayscale data of the input image and can detect afterimage AI based on the difference in the histogram. As another example, the first afterimage detection unit 311 can detect afterimage AI based on the values ​​of hue, saturation, and grayscale data of the input image. The afterimage detection technology of the first afterimage detection unit 311 is not limited to the above-described technologies, and the first afterimage detection unit 311 can distinguish between images in the input image that are fixed for multiple frames and images that change for each frame.

[0090] The first supernumerary image detection unit 311 may include a type determination module 3111, a supernumerary image detection module 3112, and a coordinate detection module 3113.

[0091] The type determination module 3111 can determine the type of the afterimage AI in the first afterimage area AIA1. The type determination module 3111 can use a preset algorithm to determine the type of the afterimage AI. The type determination module 3111 can determine the type of the afterimage AI based on at least one of the afterimage AI's position, duration, shape, size, and displayed content. For example, the type determination module 3111 can determine whether the afterimage AI in the first afterimage area AIA1 corresponds to a subtitle, sign, or banner.

[0092] The afterimage detection module 3112 can detect the probability that an afterimage AI exists in the first afterimage region AIA1. For example, the probability of the existence of the afterimage AI can correspond to the pixel size of the area in which the afterimage AI is displayed within the pixel size of the first afterimage region AIA1. When the first afterimage region AIA1 and the area in which the afterimage AI is displayed are the same, the probability of the existence of the afterimage AI can be increased. As the probability of the existence of the afterimage AI increases, the reliability of the first afterimage region AIA1 can be increased.

[0093] The coordinate detection module 3113 can detect the coordinates of the first superimposed image region AIA1. The coordinate detection module 3113 can detect the coordinates of the first superimposed image region AIA1 in the first direction (X-axis direction) and the second direction (Y-axis direction). The coordinate detection module 3113 can define the first superimposed image region AIA1 by detecting the coordinates of multiple edges of the first superimposed image region AIA1.

[0094] The first superimposed image detection unit 311 can provide the superimposed image detection result to the first communication unit 312. The first superimposed image detection unit 311 can provide the first communication unit 312 with the type of superimposed image AI of the first superimposed image region AIA1 determined by the type determination module 3111, the existence probability of the superimposed image AI detected by the superimposed image detection module 3112, and the coordinates of the first superimposed image region AIA1 detected by the coordinate detection module 3113.

[0095] The first communication unit 312 can perform wired or wireless communication with each of the second communication unit 322, the third communication unit 332, and the fourth communication unit 342. The first communication unit 312 can transmit the afterimage detection result of the first afterimage region AIA1 to each of the second communication unit 322, the third communication unit 332, and the fourth communication unit 342, and can receive the afterimage detection results of each of the second afterimage regions AIA2, the third afterimage region AIA3, and the fourth afterimage region AIA4 from the second communication unit 322, the third communication unit 332, and the fourth communication unit 342. The first communication unit 312 can determine whether the second data driver 320, the third data driver 330, and the fourth data driver 340, which respectively include the second communication unit 322, the third communication unit 332, and the fourth communication unit 342, are operational based on whether or not the afterimage detection results of the second afterimage regions AIA2, the third afterimage region AIA3, and the fourth afterimage region AIA4 are received.

[0096] For example, when the first communication unit 312 receives the afterimage detection result of the second afterimage area AIA2 from the second communication unit 322, the first communication unit 312 can determine the operation of the second data driver 320. In this case, the first communication unit 312 can transmit the afterimage detection results of the first display area DA1 and the second display area DA2 to the first comparison unit 313.

[0097] When the first communication unit 312 receives the afterimage detection results of the second afterimage area AIA2 and the third afterimage area AIA3 from the second communication unit 322 and the third communication unit 332, the first communication unit 312 can determine the operation of the second data driver 320 and the third data driver 330. In this case, the first communication unit 312 can transmit the afterimage detection results of the first display area DA1, the second display area DA2, and the third display area DA3 to the first comparison unit 313.

[0098] When the first communication unit 312 receives the afterimage detection results of the second afterimage area AIA2, the third afterimage area AIA3, and the fourth afterimage area AIA4 from the second communication unit 322, the third communication unit 332, and the fourth communication unit 342, the first communication unit 312 can determine the operation of the second data driver 320, the third data driver 330, and the fourth data driver 340. In this case, the first communication unit 312 can transmit the afterimage detection results of the first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4 to the first comparison unit 313.

[0099] When the first communication unit 312 does not receive the afterimage detection result of the second afterimage area AIA2 from the second communication unit 322, the first communication unit 312 can determine that the second data driver 320 is not operating. In this case, the first communication unit 312 can transmit only the afterimage detection result of the first display area DA1 to the first comparison unit 313, regardless of whether the afterimage detection results of the third display area DA3 and the fourth display area DA4 have been received.

[0100] When the first communication unit 312 receives the afterimage detection result of the second afterimage area AIA2 from the second communication unit 322 but does not receive the afterimage detection result of the third afterimage area AIA3 from the third communication unit 332, the first communication unit 312 can determine that the second data driver 320 is operating and the third data driver 330 is not operating. In this case, the first communication unit 312 can transmit the afterimage detection results of the first display area DA1 and the second display area DA2 to the first comparison unit 313, regardless of whether the afterimage detection result of the fourth display area DA4 is received.

[0101] Therefore, the first communication unit 312 can determine whether the third communication unit 332 is operating based on whether the nearest second communication unit 322 is operating, and can determine whether the fourth communication unit 342 is operating based on whether the third communication unit 332 is operating. For display areas adjacent to the first display area DA1 (second display area DA2, or second display area DA2 and third display area DA3, or second display area DA2 to fourth display area DA4), the first data driver 310 can correct the coordinates of the corresponding afterimage area and generate a compensation data voltage. Even when the display areas DA are driven separately, the first data driver 310 can accurately detect the afterimage area of ​​adjacent display areas to generate a compensation data voltage for saturation or brightness correction.

[0102] The first comparison unit 313 can compare the afterimage detection results received from the first communication unit 312. For example, when receiving afterimage detection results of the first display area DA1 and the second display area DA2 from the first communication unit 312, the first comparison unit 313 can compare the afterimage detection results of the first display area DA1 and the second display area DA2. In another example, when receiving afterimage detection results of the first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4 from the first communication unit 312, the first comparison unit 313 can compare the afterimage detection results of the first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4.

[0103] The first comparison unit 313 may include a type comparison module 3131, a probability comparison module 3132, and a coordinate comparison module 3133.

[0104] The type comparison module 3131 can compare the types of afterimage AIs in the first afterimage region AIA1, the second afterimage region AIA2, the third afterimage region AIA3, and the fourth afterimage region AIA4. Each of the first afterimage region AIA1, the second afterimage region AIA2, the third afterimage region AIA3, and the fourth afterimage region AIA4 can correspond to a subtitle, sign, or banner. The type comparison module 3131 can determine whether the types of afterimage AIs in the first afterimage region AIA1, the second afterimage region AIA2, the third afterimage region AIA3, and the fourth afterimage region AIA4 are the same. When the types of afterimage AIs in the first afterimage region AIA1, the second afterimage region AIA2, the third afterimage region AIA3, and the fourth afterimage region AIA4 are the same, the type comparison module 3131 can provide a type consistency signal to the probability comparison module 3132. In this case, the probability comparison module 3132 can compare the probability of the existence of the superimposed images of the first superimposed image region AIA1, the second superimposed image region AIA2, the third superimposed image region AIA3, and the fourth superimposed image region AIA4.

[0105] In another example, when the types of the afterimages AI in the first and second afterimage regions AIA1 and AIA2 are the same but different from the types of the afterimages AI in the third afterimage region AIA3, the type comparison module 3131 can provide the probability comparison module 3132 with a type consistency signal for the second afterimage region AIA2. In this case, the probability comparison module 3132 can compare the probability of the afterimages existing in the first and second afterimage regions AIA1 and AIA2.

[0106] In another example, when the types of the afterimages AI in the first afterimage region AIA1 and the second afterimage region AIA2 are different, the type comparison module 3131 can provide an afterimage inconsistency signal to the first coordinate correction unit 314. In this case, the first coordinate correction unit 314 can correct the coordinates of the first afterimage region AIA1 based on the afterimage detection result of the first afterimage region AIA1.

[0107] The probability comparison module 3132 can compare the probability of the presence of the afterimage in each of the first afterimage region AIA1, the second afterimage region AIA2, the third afterimage region AIA3, and the fourth afterimage region AIA4. The probability comparison module 3132 can compare the probability of the presence of the afterimage in each of the first afterimage region AIA1, the second afterimage region AIA2, the third afterimage region AIA3, and the fourth afterimage region AIA4 with a preset reference probability. For example, the probability comparison module 3132 can determine whether the probability of the presence of the afterimage in each of the first afterimage region AIA1, the second afterimage region AIA2, the third afterimage region AIA3, and the fourth afterimage region AIA4 is 0.75 or greater, but the reference probability is not limited to this.

[0108] When the probability of the presence of the afterimage in each of the first, second, third, and fourth afterimage regions AIA1, AIA2, AIA3, and AIA4 is greater than or equal to the reference probability, the probability comparison module 3132 can compare the difference between the probability of the presence of the afterimage in the first, second, third, and fourth afterimage regions AIA1, AIA2, AIA3, and AIA4 with a preset reference error. For example, the probability comparison module 3132 can determine whether the difference between the probability of the presence of the afterimage in the first, second, third, and fourth afterimage regions AIA1, AIA2, AIA3, and AIA4 is 0.05 or less, but the reference error is not limited to this. When the difference between the probability of the presence of the afterimage in the first, second, third, and fourth afterimage regions AIA1, AIA2, AIA3, and AIA4 is less than or equal to the reference error, the probability comparison module 3132 can provide a probability similarity signal to the coordinate comparison module 3133.

[0109] In another example, when the probability of the presence of the superimposed image of at least one of the first superimposed image regions AIA1, AIA2, AIA3, and AIA4 is less than the reference probability, the probability comparison module 3132 can provide the first coordinate correction unit 314 with a superimposed image inconsistency signal for the corresponding superimposed image region. Furthermore, when at least one of the differences in the superimposed image presence probabilities among the first superimposed image regions AIA1, AIA2, AIA3, and AIA4 exceeds the reference error, the probability comparison module 3132 can provide the first coordinate correction unit 314 with a superimposed image inconsistency signal for the corresponding superimposed image region.

[0110] The coordinate comparison module 3133 can compare the coordinates of the first superimposed image region AIA1, the second superimposed image region AIA2, the third superimposed image region AIA3, and the fourth superimposed image region AIA4. The coordinate comparison module 3133 can obtain the coordinate difference in the first direction (X-axis direction) between adjacent superimposed image regions within the first superimposed image region AIA1, the second superimposed image region AIA2, the third superimposed image region AIA3, and the fourth superimposed image region AIA4. The coordinate comparison module 3133 can obtain the coordinate difference in the second direction (Y-axis direction) between the upper ends of the first superimposed image region AIA1, the second superimposed image region AIA2, the third superimposed image region AIA3, and the fourth superimposed image region AIA4, and can also obtain the coordinate difference in the second direction (Y-axis direction) between the lower ends of the first superimposed image region AIA1, the second superimposed image region AIA2, the third superimposed image region AIA3, and the fourth superimposed image region AIA4.

[0111] exist Figure 8 In this module, the coordinate comparison module 3133 can obtain the coordinate difference d1 between the first superimposed image region AIA1 and the second superimposed image region AIA2 in the first direction (X-axis direction). The coordinate comparison module 3133 can obtain the coordinate difference d2 between the upper ends of the first superimposed image region AIA1 and the second superimposed image region AIA2 in the second direction (Y-axis direction), and can also obtain the coordinate difference d3 between the lower ends of the first superimposed image region AIA1 and the second superimposed image region AIA2 in the second direction (Y-axis direction).

[0112] For example, when the coordinate difference between adjacent residual image regions in the first direction (X-axis direction), the coordinate difference between the upper ends of the first residual image region AIA1, the second residual image region AIA2, the third residual image region AIA3, and the fourth residual image region AIA4 in the second direction (Y-axis direction), and the coordinate difference between the lower ends of the first residual image region AIA1, the second residual image region AIA2, the third residual image region AIA3, and the fourth residual image region AIA4 in the second direction (Y-axis direction) are less than or equal to the reference error, the coordinate comparison module 3133 can determine that the coordinate difference between the first residual image region AIA1, the second residual image region AIA2, the third residual image region AIA3, and the fourth residual image region AIA4 is less than or equal to the reference error. Here, the reference error of the coordinates may correspond to 3% of the resolution, but is not limited to this.

[0113] For another example, when at least one of the following coordinate differences exceeds a reference error: the coordinate difference between adjacent residual image regions in the first direction (X-axis direction), the coordinate difference between the upper ends of the first residual image region AIA1, the second residual image region AIA2, the third residual image region AIA3, and the fourth residual image region AIA4 in the second direction (Y-axis direction), and the coordinate difference between the lower ends of the first residual image region AIA1, the second residual image region AIA2, the third residual image region AIA3, and the fourth residual image region AIA4 in the second direction (Y-axis direction), the coordinate comparison module 3133 can determine that the coordinate difference between the corresponding residual image regions exceeds the reference error. In this case, the coordinate comparison module 3133 can provide the first coordinate correction unit 314 with a residual image consistency signal for residual image regions whose coordinate differences are less than or equal to the reference error. The coordinate comparison module 3133 can also provide the first coordinate correction unit 314 with a residual image inconsistency signal for at least one residual image region whose coordinate difference exceeds the reference error.

[0114] The first coordinate correction unit 314 can correct the coordinates of the first superimposed image region AIA1 based on the superimposed image consistency signal received from the first comparison unit 313. The first coordinate correction unit 314 can provide the corrected coordinates of the superimposed image region CIA to the first data compensation unit 315.

[0115] For example, when the first comparison unit 313 receives the afterimage consistency signal of the first afterimage region AIA1, the second afterimage region AIA2, the third afterimage region AIA3, and the fourth afterimage region AIA4, the first coordinate correction unit 314 can extend the coordinates of the first afterimage region AIA1 in the first direction (X-axis direction) to the boundary line BND, and can correct the coordinates of the first afterimage region AIA1 in the second direction (Y-axis direction) to the average value of the coordinates of the first afterimage region AIA1, the second afterimage region AIA2, the third afterimage region AIA3, and the fourth afterimage region AIA4 in the second direction (Y-axis direction). In another example, the first coordinate correction unit 314 can correct the coordinates of the first afterimage region AIA1 in the second direction (Y-axis direction) to the maximum or minimum value of the coordinates of the first afterimage region AIA1, the second afterimage region AIA2, the third afterimage region AIA3, and the fourth afterimage region AIA4 in the second direction (Y-axis direction).

[0116] For example, when the first comparison unit 313 receives a signal indicating that the superimposed images of the first superimposed image region AIA1 and the second superimposed image region AIA2 are aligned, the first coordinate correction unit 314 can extend the coordinates of the first superimposed image region AIA1 in the first direction (X-axis direction) to the boundary line BND, and can correct the coordinates of the first superimposed image region AIA1 in the second direction (Y-axis direction) to the average of the coordinates of the first superimposed image region AIA1 and the second superimposed image region AIA2 in the second direction (Y-axis direction). In another example, the first coordinate correction unit 314 can correct the coordinates of the first superimposed image region AIA1 in the second direction (Y-axis direction) to the maximum or minimum value of the coordinates of the first superimposed image region AIA1 and the second superimposed image region AIA2 in the second direction (Y-axis direction).

[0117] The first data compensation unit 315 can generate a compensation data voltage by adjusting the saturation or brightness of the corrected afterimage region CIA. Therefore, even when the first afterimage region AIA1 does not include afterimage AI adjacent to the boundary line BND between the first display region DA1 and the second display region DA2, the first data driver 310 can correct the first afterimage region AIA1 up to the boundary line BND. Even when the display regions DA are driven separately, the first data driver 310 can accurately detect the afterimage regions of adjacent display regions to generate a compensation data voltage for saturation or brightness correction. The first data driver 310 can prevent or reduce the occurrence of afterimages in the first display region DA1, reduce color shift, and improve display quality.

[0118] Figure 10 This is a flowchart illustrating the afterimage processing procedure of a first data driver in a display device according to some embodiments. However, embodiments according to this disclosure are not limited to... Figure 10 The number or order of operations shown. For example, according to some embodiments, additional or fewer operations may exist, or the order of operations may be different, without departing from the spirit and scope of the embodiments according to this disclosure. Figure 10 The order shown is different. Figure 10 The afterimage processing process corresponds to the case where the first data driver 310 receives the afterimage detection result from the second data driver 320 among the second data driver 320, the third data driver 330, and the fourth data driver 340.

[0119] refer to Figure 5 The first data driver 310 may include a first afterimage detection unit 311, a first communication unit 312, a first comparison unit 313, a first coordinate correction unit 314, and a first data compensation unit 315.

[0120] The first superimposed image detection unit 311 can receive an input image and detect a first superimposed image region AIA1 including superimposed image AI in the first display area DA1 (operation S110). The first superimposed image detection unit 311 can provide the first communication unit 312 with the type of superimposed image AI in the first superimposed image region AIA1, the probability of the existence of superimposed image AI, and the coordinates of the first superimposed image region AIA1.

[0121] The first communication unit 312 can perform wired or wireless communication with the second communication unit 322. The first communication unit 312 can transmit the afterimage detection result of the first afterimage region AIA1 to the second communication unit 322, and can receive the afterimage detection result of the second afterimage region AIA2 from the second communication unit 322 (operation S120).

[0122] The first comparison unit 313 can compare the afterimage detection results of the first display area DA1 and the second display area DA2 (operation S130). The first comparison unit 313 can compare the type of afterimage AI in the first afterimage area AIA1 and the second afterimage area AIA2, the probability of the existence of afterimage AI, and the coordinates of the first afterimage area AIA1 and the second afterimage area AIA2.

[0123] The first coordinate correction unit 314 can correct the coordinates of the first superimposed image region AIA1 based on the superimposed image consistency signal received from the first comparison unit 313 (operation S140). The first coordinate correction unit 314 can provide the corrected coordinates of the superimposed image region CIA to the first data compensation unit 315.

[0124] The first data compensation unit 315 can generate a compensation data voltage by adjusting the saturation or brightness of the corrected afterimage area CIA (operation S150). Therefore, the first data driver 310 can prevent or reduce the occurrence of afterimages in the first display area DA1, reduce color shift, and improve display quality.

[0125] Figure 11 This is a flowchart illustrating the afterimage detection process of a first afterimage detection unit in a display device according to some embodiments. However, embodiments according to this disclosure are not limited to... Figure 11 The number or order of operations shown. For example, according to some embodiments, additional or fewer operations may exist, or the order of operations may be different, without departing from the spirit and scope of the embodiments according to this disclosure. Figure 11 The order shown is different. Figure 11 The afterimage detection process can correspond to Figure 10 Operation S110.

[0126] refer to Figure 11The first afterimage detection unit 311 can receive the input image and detect the first afterimage region AIA1, which includes the afterimage AI, in the first display region DA1.

[0127] refer to Figure 6 The first afterimage detection unit 311 may include a type determination module 3111, an afterimage detection module 3112, and a coordinate detection module 3113.

[0128] The type determination module 3111 can determine the type of the superimposed image AI in the first superimposed image region AIA1 (operation S111). For example, the type determination module 3111 can determine whether the superimposed image AI in the first superimposed image region AIA1 corresponds to a subtitle, sign, or banner.

[0129] The afterimage detection module 3112 can detect the probability of the presence of the afterimage AI in the first afterimage region AIA1 (operation S112). For example, the probability of the presence of the afterimage AI can correspond to the pixel size of the area in which the afterimage AI is displayed in the pixel size of the first afterimage region AIA1.

[0130] The coordinate detection module 3113 can detect the coordinates of the first superimposed image region AIA1 (operation S113). The coordinate detection module 3113 can detect the coordinates of the first superimposed image region AIA1 in the first direction (X-axis direction) and the second direction (Y-axis direction).

[0131] The first superimposed image detection unit 311 can transmit the superimposed image detection result to the first communication unit 312 (operation S114). The first superimposed image detection unit 311 can provide the first communication unit 312 with the type of superimposed image AI of the first superimposed image region AIA1 determined by the type determination module 3111, the existence probability of the superimposed image AI detected by the superimposed image detection module 3112, and the coordinates of the first superimposed image region AIA1 detected by the coordinate detection module 3113.

[0132] Figure 12 This is a flowchart illustrating the communication process of a first communication unit in a display device according to some embodiments. However, embodiments according to this disclosure are not limited to... Figure 12 The number or order of operations shown. For example, according to some embodiments, additional or fewer operations may exist, or the order of operations may be different, without departing from the spirit and scope of the embodiments according to this disclosure. Figure 12 The order shown is different. Figure 12 The communication process corresponds to Figure 10 Operation S120.

[0133] refer to Figure 12The first communication unit 312 can receive the afterimage detection result of the first display area DA1 from the first afterimage detection unit 311 (operation S121).

[0134] The first communication unit 312 can perform wired or wireless communication with the second communication unit 322. The first communication unit 312 can transmit the afterimage detection result of the first afterimage region AIA1 to the second communication unit 322, and can receive the afterimage detection result of the second afterimage region AIA2 from the second communication unit 322. The first communication unit 312 can determine whether the second data driver 320, including the second communication unit 322, operates (operation S122) based on whether it receives the afterimage detection result of the second afterimage region AIA2.

[0135] When the first communication unit 312 receives the afterimage detection result of the second afterimage area AIA2 from the second communication unit 322, the first communication unit 312 can determine the operation of the second data driver 320 (operation S123). In this case, the first communication unit 312 can transmit the afterimage detection results of the first display area DA1 and the second display area DA2 to the first comparison unit 313 (operation S124).

[0136] When the first communication unit 312 does not receive the afterimage detection result of the second afterimage area AIA2 from the second communication unit 322, the first communication unit 312 can determine that the second data driver 320 is not operating (operation S125). In this case, the first communication unit 312 can transmit only the afterimage detection result of the first display area DA1 to the first comparison unit 313, regardless of whether the afterimage detection results of the third display area DA3 and the fourth display area DA4 have been received.

[0137] Figure 13 This is a flowchart illustrating the afterimage comparison process of a first comparison unit in a display device according to some embodiments. However, embodiments according to this disclosure are not limited to... Figure 13 The number or order of operations shown. For example, according to some embodiments, additional or fewer operations may exist, or the order of operations may be different, without departing from the spirit and scope of the embodiments according to this disclosure. Figure 13 The order shown is different. Figure 13 The afterimage comparison process corresponds to Figure 10 Operation S130.

[0138] refer to Figure 13 The first comparison unit 313 can receive the afterimage detection results of the first display area DA1 and the second display area DA2.

[0139] refer to Figure 7The first comparison unit 313 may include a type comparison module 3131, a probability comparison module 3132, and a coordinate comparison module 3133.

[0140] The type comparison module 3131 can compare the types of the afterimage AI in the first afterimage region AIA1 and the second afterimage region AIA2. The type comparison module 3131 can determine whether the types of the afterimage AI in the first afterimage region AIA1 and the second afterimage region AIA2 are the same (operation S131). When the types of the afterimage AI in the first afterimage region AIA1 and the second afterimage region AIA2 are the same, the type comparison module 3131 can provide a type consistency signal to the probability comparison module 3132.

[0141] The probability comparison module 3132 can compare the afterimage existence probabilities of the first afterimage region AIA1 and the second afterimage region AIA2. The probability comparison module 3132 can compare the afterimage existence probability of each of the first afterimage region AIA1 and the second afterimage region AIA2 with a preset reference probability (operation S132). For example, the probability comparison module 3132 can determine whether the afterimage existence probability of each of the first afterimage region AIA1 and the second afterimage region AIA2 is 0.75 or greater, but the reference probability is not limited to this.

[0142] When the probability of the presence of the afterimage in each of the first afterimage region AIA1 and the second afterimage region AIA2 is greater than or equal to the reference probability, the probability comparison module 3132 can compare the difference between the probability of the presence of the afterimage in the first afterimage region AIA1 and the second afterimage region AIA2 with a preset reference error (operation S133). For example, the probability comparison module 3132 can determine whether the difference between the probability of the presence of the afterimage in the first afterimage region AIA1 and the second afterimage region AIA2 is 0.05 or less, but the reference error is not limited to this.

[0143] The coordinate comparison module 3133 can compare the coordinates of the first superimposed image region AIA1 and the second superimposed image region AIA2 (operation S134). The coordinate comparison module 3133 can obtain the coordinate difference between the first superimposed image region AIA1 and the second superimposed image region AIA2 in the first direction (X-axis direction). The coordinate comparison module 3133 can obtain the coordinate difference between the upper ends of the first superimposed image region AIA1 and the second superimposed image region AIA2 in the second direction (Y-axis direction), and can also obtain the coordinate difference between the lower ends of the first superimposed image region AIA1 and the second superimposed image region AIA2 in the second direction (Y-axis direction).

[0144] For example, when the coordinate difference between the first redundant image region AIA1 and the second redundant image region AIA2 in the first direction (X-axis direction), the coordinate difference between the upper ends of the first redundant image region AIA1 and the second redundant image region AIA2 in the second direction (Y-axis direction), and the coordinate difference between the lower ends of the first redundant image region AIA1 and the second redundant image region AIA2 in the second direction (Y-axis direction) are less than or equal to the reference error, the coordinate comparison module 3133 can determine that the coordinate difference between the first redundant image region AIA1 and the second redundant image region AIA2 is less than or equal to the reference error, and can transmit the redundant image consistency signal for the first redundant image region AIA1 and the second redundant image region AIA2 to the first coordinate correction unit 314 (operation S135).

[0145] In another example, when the types of afterimages AI in the first afterimage region AIA1 and the second afterimage region AIA2 are different, the type comparison module 3131 can transmit an afterimage inconsistency signal to the first coordinate correction unit 314. When the afterimage existence probability of at least one of the first afterimage regions AIA1 and AIA2 is less than the reference probability, the probability comparison module 3132 can transmit the afterimage inconsistency signal for the first afterimage region AIA1 and the second afterimage region AIA2 to the first coordinate correction unit 314. When the difference in the afterimage existence probability of the first afterimage region AIA1 and the second afterimage region AIA2 exceeds the reference error, the probability comparison module 3132 can transmit the afterimage inconsistency signal for the first afterimage region AIA1 and the second afterimage region AIA2 to the first coordinate correction unit 314. When the coordinate difference between the first afterimage region AIA1 and the second afterimage region AIA2 exceeds the reference error, the coordinate comparison module 3133 can transmit the afterimage inconsistency signal for the first afterimage region AIA1 and the second afterimage region AIA2 to the first coordinate correction unit 314.

[0146] Figure 14 This is a flowchart illustrating the coordinate comparison process of a coordinate comparison module in a display device according to some embodiments. However, embodiments according to this disclosure are not limited to... Figure 14 The number or order of operations shown. For example, according to some embodiments, additional or fewer operations may exist, or the order of operations may be different, without departing from the spirit and scope of the embodiments according to this disclosure. Figure 14 The order shown is different. Figure 14 The coordinate comparison process corresponds to Figure 13 Operation S134.

[0147] refer to Figure 14The coordinate comparison module 3133 can compare the coordinate difference between the first redundant image region AIA1 and the second redundant image region AIA2 in the first direction (X-axis direction) with a preset reference error (operation S1341). Here, the coordinate reference error may correspond to 3% of the resolution, but according to the embodiments of this disclosure, it is not limited to this.

[0148] The coordinate comparison module 3133 can compare the coordinate difference between the upper ends of the first redundant image region AIA1 and the second redundant image region AIA2 in the second direction (Y-axis direction) with the reference error (operation S1342).

[0149] The coordinate comparison module 3133 can compare the coordinate difference between the lower ends of the first redundant image region AIA1 and the second redundant image region AIA2 in the second direction (Y-axis direction) with the reference error (operation S1343).

[0150] When the coordinate difference between the first redundant image region AIA1 and the second redundant image region AIA2 in the first direction (X-axis direction), the coordinate difference between the upper ends of the first redundant image region AIA1 and the second redundant image region AIA2 in the second direction (Y-axis direction), and the coordinate difference between the lower ends of the first redundant image region AIA1 and the second redundant image region AIA2 in the second direction (Y-axis direction) are less than or equal to the reference error, the coordinate comparison module 3133 can determine that the coordinate difference between the first redundant image region AIA1 and the second redundant image region AIA2 is less than or equal to the reference error (operation S1344).

[0151] When the coordinate difference between the first redundant image region AIA1 and the second redundant image region AIA2 in the first direction (X-axis direction) exceeds the reference error, the coordinate comparison module 3133 can determine that the coordinate difference between the first redundant image region AIA1 and the second redundant image region AIA2 exceeds the reference error (operation S1345). When the coordinate difference between the upper ends of the first redundant image region AIA1 and the second redundant image region AIA2 in the second direction (Y-axis direction) exceeds the reference error, the coordinate comparison module 3133 can determine that the coordinate difference between the first redundant image region AIA1 and the second redundant image region AIA2 exceeds the reference error. When the coordinate difference between the lower ends of the first redundant image region AIA1 and the second redundant image region AIA2 in the second direction (Y-axis direction) exceeds the reference error, the coordinate comparison module 3133 can determine that the coordinate difference between the first redundant image region AIA1 and the second redundant image region AIA2 exceeds the reference error.

[0152] Figure 15 This is a flowchart illustrating the communication process of a second communication unit in a display device according to some embodiments. However, embodiments according to this disclosure are not limited to... Figure 15The number or order of operations shown. For example, according to some embodiments, additional or fewer operations may exist, or the order of operations may be different, without departing from the spirit and scope of the embodiments according to this disclosure. Figure 15 The order shown is different.

[0153] refer to Figure 15 The second communication unit 322 can receive the afterimage detection result of the second display area DA2 from the second afterimage detection unit 321 (operation S201).

[0154] The second communication unit 322 can perform wired or wireless communication with the first communication unit 312. The second communication unit 322 can transmit the afterimage detection result of the second afterimage region AIA2 to the first communication unit 312, and can receive the afterimage detection result of the first afterimage region AIA1 from the first communication unit 312. The second communication unit 322 can determine whether the first data driver 310, including the first communication unit 312, is operational (operation S202) based on whether it has received the afterimage detection result of the first afterimage region AIA1.

[0155] The second communication unit 322 can perform wired or wireless communication with the third communication unit 332. The second communication unit 322 can transmit the afterimage detection result of the second afterimage region AIA2 to the third communication unit 332, and can receive the afterimage detection result of the third afterimage region AIA3 from the third communication unit 332. The second communication unit 322 can determine whether the third data driver 330, including the third communication unit 332, operates (operations S203 and S208) based on whether it receives the afterimage detection result of the third afterimage region AIA3.

[0156] When the second communication unit 322 receives the afterimage detection results of the first afterimage area AIA1 and the third afterimage area AIA3 from the first communication unit 312 and the third communication unit 332 respectively, the second communication unit 322 can determine the operation of the first data driver 310 and the third data driver 330 (operation S204). In this case, the second communication unit 322 can transmit the afterimage detection results of the first display area DA1, the second display area DA2, and the third display area DA3 to the second comparison unit 323 (operation S205).

[0157] When the second communication unit 322 receives the afterimage detection result of the first afterimage area AIA1 from the first communication unit 312 but does not receive the afterimage detection result of the third afterimage area AIA3 from the third communication unit 332, the second communication unit 322 can determine that the third data driver 330 is not operating (operation S206). In this case, the second communication unit 322 can transmit the afterimage detection results of the first display area DA1 and the second display area DA2 to the second comparison unit 323 (operation S207).

[0158] When the second communication unit 322 does not receive the afterimage detection result of the first afterimage area AIA1 from the first communication unit 312, but receives the afterimage detection result of the third afterimage area AIA3 from the third communication unit 332, the second communication unit 322 can determine that the first data driver 310 is not operating (operation S209). In this case, the second communication unit 322 can transmit the afterimage detection results of the second display area DA2 and the third display area DA3 to the second comparison unit 323 (operation S210).

[0159] When the second communication unit 322 does not receive the afterimage detection results of the first afterimage area AIA1 and the third afterimage area AIA3 from the first communication unit 312 and the third communication unit 332 respectively, the second communication unit 322 can determine that the first data driver 310 and the third data driver 330 are not operating. In this case, the second communication unit 322 can transmit only the afterimage detection result of the second display area DA2 to the second comparison unit 323.

[0160] Figure 16 This is a diagram showing the first to fourth display areas in a display device according to some embodiments. Figure 17 yes Figure 16 A magnified view of region PA2. In the following text, configurations identical to those described above will be briefly described or omitted.

[0161] refer to Figure 2 and Figure 3 The data drive 300 may include a first data drive 310, a second data drive 320, a third data drive 330, and a fourth data drive 340.

[0162] refer to Figure 5 The first data driver 310 may include a first afterimage detection unit 311, a first communication unit 312, a first comparison unit 313, a first coordinate correction unit 314, and a first data compensation unit 315.

[0163] The first redundant image detection unit 311 can receive an input image and detect a first redundant image region AIA1, including redundant images AI, within the first display area DA1. For example, the first redundant image detection unit 311 can detect segmented redundant image pixels. The first redundant image detection unit 311 can detect the number of redundant image pixels and the coordinates of the redundant image pixels in the first redundant image region AIA1. The first redundant image detection unit 311 can provide the number of redundant image pixels and the coordinates of the redundant image pixels in the first redundant image region AIA1 to the first communication unit 312.

[0164] The first communication unit 312 can perform wired or wireless communication with the second communication unit 322. The first communication unit 312 can transmit the afterimage detection result of the first afterimage region AIA1 to the second communication unit 322, and can receive the afterimage detection result of the second afterimage region AIA2 from the second communication unit 322. The first communication unit 312 can determine whether the second data driver 320, including the second communication unit 322, is operational based on whether it has received the afterimage detection result of the second afterimage region AIA2. The first communication unit 312 can provide the afterimage detection result of each of the first afterimage region AIA1 and the second afterimage region AIA2 to the first comparison unit 313.

[0165] The first comparison unit 313 can compare the number of redundant pixels in the comparison target area CPA with a preset reference number. The comparison target area CPA may include a first comparison target area CPA1 that contacts one side of the boundary line BND between the first display area DA1 and the second display area DA2, and a second comparison target area CPA2 that contacts the other side of the boundary line BND between the second display area DA2. Therefore, the first comparison unit 313 can compare the sum of the number of redundant pixels in the first comparison target area CPA1 and the second comparison target area CPA2 with the preset reference number.

[0166] For example, the first comparison unit 313 can determine whether the number of afterimage pixels in the comparison target area CPA is 80% or more of the total number of pixels in the comparison target area CPA, but the reference number is not limited to this. When the number of afterimage pixels in the comparison target area CPA is 80% or more of the total number of pixels in the comparison target area CPA, the first comparison unit 313 can provide an afterimage consistency signal to the first coordinate correction unit 314. When the number of afterimage pixels in the comparison target area CPA is less than 80% of the total number of pixels in the comparison target area CPA, the first comparison unit 313 can provide an afterimage inconsistency signal to the first coordinate correction unit 314.

[0167] The first comparison target region CPA1 and the second comparison target region CPA2 may be symmetrical about the boundary line BND. The length of each of the first comparison target regions CPA1 and the second comparison target region CPA2 in the first direction (X-axis direction) may have a constant size (e.g., a set size or a predetermined size) relative to the boundary line BND. For example, the length of each of the first comparison target regions CPA1 and the second comparison target region CPA2 in the first direction (X-axis direction) may be 1% of the resolution, but is not limited thereto. For another example, the length of each of the first comparison target regions CPA1 and the second comparison target region CPA2 in the first direction (X-axis direction) may be determined based on the length between the first redundant image region AIA1 and the boundary line BND and the length between the second redundant image region AIA2 and the boundary line BND. The length of each of the first comparison target regions CPA1 and the second comparison target region CPA2 in the first direction (X-axis direction) may be greater than the length between the first redundant image region AIA1 and the boundary line BND, and the length between the second redundant image region AIA2 and the boundary line BND.

[0168] The length of each of the first comparison target region CPA1 and the second comparison target region CPA2 in the second direction (Y-axis direction) can be determined based on the upper and lower ends of the first redundant image region AIA1 and the second redundant image region AIA2. For example, the upper coordinate of each of the first comparison target region CPA1 and the second comparison target region CPA2 can be the same as the larger of the upper coordinates of the first redundant image region AIA1 and the second redundant image region AIA2. The lower coordinate of each of the first comparison target region CPA1 and the second comparison target region CPA2 can be the same as the smaller of the lower coordinates of the first redundant image region AIA1 and the second redundant image region AIA2.

[0169] The first coordinate correction unit 314 can correct the coordinates of the first afterimage region AIA1 based on the afterimage consistency signal received from the first comparison unit 313. The first coordinate correction unit 314 can correct the first afterimage region AIA1 such that the first afterimage region AIA1 includes the first comparison target region CPA1. For example, the first coordinate correction unit 314 can extend the coordinates of the first afterimage region AIA1 in a first direction (X-axis direction) to the boundary line BND. The first coordinate correction unit 314 can extend the coordinates of the first afterimage region AIA1 in a second direction (Y-axis direction) to the coordinates of the comparison target region CPA in the second direction (Y-axis direction). The first coordinate correction unit 314 can provide the corrected coordinates of the afterimage region CIA to the first data compensation unit 315.

[0170] The first data compensation unit 315 can generate a compensation data voltage by adjusting the saturation or brightness of the corrected afterimage region CIA. Therefore, even when the first afterimage region AIA1 does not include afterimage AI adjacent to the boundary line BND between the first display region DA1 and the second display region DA2, the first data driver 310 can correct the first afterimage region AIA1 up to the boundary line BND. Even when the display regions DA are driven separately, the first data driver 310 can accurately detect the afterimage regions of adjacent display regions to generate a compensation data voltage for saturation or brightness correction. The first data driver 310 can prevent or reduce the occurrence of afterimages in the first display region DA1, reduce color shift, and improve display quality.

[0171] Figure 18 It is shown Figure 16 A flowchart of the afterimage processing procedure of the first data driver in the display device. However, embodiments according to this disclosure are not limited to... Figure 18 The number or order of operations shown. For example, according to some embodiments, additional or fewer operations may exist, or the order of operations may be different, without departing from the spirit and scope of the embodiments according to this disclosure. Figure 18 The order shown is different. Figure 18 The afterimage processing process corresponds to the case where the first data driver 310 receives the afterimage detection result from the second data driver 320 among the second data driver 320, the third data driver 330, and the fourth data driver 340.

[0172] refer to Figure 5 The first data driver 310 may include a first afterimage detection unit 311, a first communication unit 312, a first comparison unit 313, a first coordinate correction unit 314, and a first data compensation unit 315.

[0173] The first redundant image detection unit 311 can receive an input image and detect a first redundant image region AIA1, including the redundant image AI, in the first display area DA1. For example, the first redundant image detection unit 311 can detect segmented redundant image pixels. The first redundant image detection unit 311 can detect the number of redundant image pixels and the coordinates of the redundant image pixels in the first redundant image region AIA1 (operation S310). The first redundant image detection unit 311 can provide the number of redundant image pixels and the coordinates of the redundant image pixels in the first redundant image region AIA1 to the first communication unit 312.

[0174] The first communication unit 312 can perform wired or wireless communication with the second communication unit 322. The first communication unit 312 can transmit the afterimage detection result of the first afterimage region AIA1 to the second communication unit 322, and can receive the afterimage detection result of the second afterimage region AIA2 from the second communication unit 322 (operation S320).

[0175] The first comparison unit 313 can compare the number of redundant pixels in the comparison target area CPA with a preset reference number. The first comparison unit 313 can also compare the sum of the number of redundant pixels in the first comparison target area CPA1 and the second comparison target area CPA2 with a preset reference number (operation S330).

[0176] The first coordinate correction unit 314 can correct the coordinates of the first superimposed image region AIA1 based on the superimposed image consistency signal received from the first comparison unit 313 (operation S340). The first coordinate correction unit 314 can correct the first superimposed image region AIA1 such that the first superimposed image region AIA1 includes the first comparison target region CPA1. The first coordinate correction unit 314 can provide the corrected coordinates of the superimposed image region CIA to the first data compensation unit 315.

[0177] The first data compensation unit 315 can generate a compensation data voltage by adjusting the saturation or brightness of the corrected afterimage area CIA (operation S350). Therefore, the first data driver 310 can prevent or reduce the occurrence of afterimages in the first display area DA1, reduce color shift, and improve display quality.

[0178] Figure 19 This is a diagram illustrating a first display area in a display device according to some embodiments.

[0179] refer to Figure 2 and Figure 3 The data drive 300 may include a first data drive 310, a second data drive 320, a third data drive 330, and a fourth data drive 340.

[0180] refer to Figure 5 The first data driver 310 may include a first afterimage detection unit 311, a first communication unit 312, a first comparison unit 313, a first coordinate correction unit 314, and a first data compensation unit 315.

[0181] The first redundant image detection unit 311 can receive an input image and detect a first redundant image region AIA1 including the redundant image AI in the first display region DA1.

[0182] The first communication unit 312 may not receive the afterimage detection results of the second afterimage region AIA2, the third afterimage region AIA3, and the fourth afterimage region AIA4 from the second communication unit 322, the third communication unit 332, and the fourth communication unit 342. For example, even when the second data driver 320, the third data driver 330, and the fourth data driver 340 are driven, the first communication unit 312 may selectively not communicate with the second communication unit 322, the third communication unit 332, and the fourth communication unit 342. In another example, when the second data driver 320 is not driven, the first communication unit 312 may not communicate with the second communication unit 322, the third communication unit 332, and the fourth communication unit 342. The first communication unit 312 may provide the afterimage detection result of the first afterimage region AIA1 to the first comparison unit 313.

[0183] The first comparison unit 313 can compare the distance d between the boundary line BND between the first redundant image region AIA1 and the first display region DA1 and the second display region DA2 with a preset reference distance. For example, when the distance between the boundary line BND and the first redundant image region AIA1 is less than the reference distance, the first comparison unit 313 can transmit a redundant image correction signal to the first coordinate correction unit 314. Here, the reference distance can be 1% of the resolution, but is not limited to this. When the distance between the boundary line BND and the first redundant image region AIA1 exceeds the reference distance, the first comparison unit 313 can transmit a redundant image non-correction signal to the first coordinate correction unit 314.

[0184] When the afterimage correction signal is received, the first coordinate correction unit 314 can extend the coordinates of the first afterimage region AIA1 in the first direction (X-axis direction) to the boundary line BND. The first coordinate correction unit 314 can provide the first data compensation unit 315 with the corrected coordinates of the afterimage region CIA.

[0185] The first data compensation unit 315 can generate a compensation data voltage by adjusting the saturation or brightness of the corrected afterimage region CIA. Therefore, even when the first afterimage region AIA1 does not include afterimage AI adjacent to the boundary line BND between the first display region DA1 and the second display region DA2, the first data driver 310 can correct the first afterimage region AIA1 up to the boundary line BND. Even when the display regions DA are driven separately, the first data driver 310 can accurately detect the afterimage regions of adjacent display regions to generate a compensation data voltage for saturation or brightness correction. The first data driver 310 can prevent or reduce the occurrence of afterimages in the first display region DA1, reduce color shift, and improve display quality.

[0186] Figure 20 It is shown Figure 19A flowchart of the afterimage processing procedure of the first data driver in the display device. However, embodiments according to this disclosure are not limited to... Figure 20 The number or order of operations shown. For example, according to some embodiments, additional or fewer operations may exist, or the order of operations may be different, without departing from the spirit and scope of the embodiments according to this disclosure. Figure 20 The order shown is different. Figure 20 The afterimage processing procedure corresponds to the situation where the first data driver 310 does not receive afterimage detection results from the second data driver 320, the third data driver 330, and the fourth data driver 340.

[0187] refer to Figure 5 The first data driver 310 may include a first afterimage detection unit 311, a first communication unit 312, a first comparison unit 313, a first coordinate correction unit 314, and a first data compensation unit 315.

[0188] The first redundant image detection unit 311 can receive an input image and detect a first redundant image region AIA1, including the redundant image AI, in the first display area DA1. The first redundant image detection unit 311 can detect the number of redundant image pixels and the coordinates of the redundant image pixels in the first redundant image region AIA1 (operation S410). The first redundant image detection unit 311 can provide the redundant image detection result of the first redundant image region AIA1 to the first communication unit 312.

[0189] The first communication unit 312 may not perform wired or wireless communication with the second communication unit 322, the third communication unit 332, and the fourth communication unit 342. The first communication unit 312 may provide the first comparison unit 313 with the afterimage detection result of the first afterimage region AIA1.

[0190] The first comparison unit 313 can compare the distance between the boundary line BND between the first redundant image region AIA1 and the first display region DA1 and the second display region DA2 with a preset reference distance (operation S420). For example, when the distance between the boundary line BND and the first redundant image region AIA1 is less than the reference distance, the first comparison unit 313 can transmit a redundant image correction signal to the first coordinate correction unit 314.

[0191] The first coordinate correction unit 314 can receive the afterimage correction signal and correct the coordinates of the first afterimage region AIA1 (operation S430). The first coordinate correction unit 314 can extend the coordinates of the first afterimage region AIA1 in the first direction (X-axis direction) to the boundary line BND. The first coordinate correction unit 314 can provide the corrected coordinates of the afterimage region CIA to the first data compensation unit 315.

[0192] The first data compensation unit 315 can generate a compensation data voltage by adjusting the saturation or brightness of the corrected afterimage region CIA (operation S440).

[0193] Electronic or electrical devices and / or any other related devices or components according to embodiments of the invention described herein can be implemented using any suitable hardware, firmware (e.g., application-specific integrated circuits), software, or a combination of software, firmware, and hardware. For example, various components of these devices can be formed on a single integrated circuit (IC) chip or on separate IC chips. Additionally, various components of these devices can be implemented on a flexible printed circuit film, a tape-on-a-chip (TCP), a printed circuit board (PCB), or formed on a substrate. Furthermore, various components of these devices can be processes or threads running on one or more processors in one or more computing devices, executing computer program instructions, and interacting with other system components for performing the various functions described herein. The computer program instructions are stored in memory that can be implemented in the computing device using, for example, standard storage devices, such as random access memory (RAM). The computer program instructions can also be stored, for example, on other non-transitory computer-readable media, such as CD-ROMs, flash drives, etc. Furthermore, those skilled in the art will recognize that, without departing from the spirit and scope of embodiments of the invention, the functions of various computing devices can be combined or integrated into a single computing device, or the functions of a particular computing device can be distributed across one or more other computing devices.

Claims

1. A display device, comprising: The display panel includes a first display area and a second display area that are adjacent to each other. as well as A first data driver and a second data driver are configured to drive the first display area and the second display area, respectively. The first data driver includes: A first afterimage detector is configured to receive an input image and detect a first afterimage region including the afterimage in the first display area from the input image; A first comparator is configured to compare the afterimage detection result of the first display area with the afterimage detection result of the second display area received from the second data driver; A first coordinate corrector is configured to correct the coordinates of the first superimposed image region in response to a preset reference being satisfied by the superimposed image detection results of the first display area and the second display area. The first data compensation unit is configured to generate a compensation data voltage based on the corrected first residual image region.

2. The display device according to claim 1, wherein, The second data driver includes: A second redundant image detector is configured to detect a second redundant image region of the second display region, including the redundant image. A second comparator is configured to compare the afterimage detection result of the second display area with the afterimage detection result of the first display area; and The second coordinate corrector is configured to correct the coordinates of the second redundant image area in response to the redundant image detection result of the second display area and the redundant image detection result of the first display area satisfying a preset reference.

3. The display device according to claim 2, wherein, The first afterimage detector includes: The type determination module is configured to determine the type of the afterimage in the first afterimage region; The afterimage detection module is configured to detect the probability of the existence of the afterimage in the first afterimage region; and The coordinate detection module is configured to detect the coordinates of the first superimposed image region.

4. The display device according to claim 3, wherein, The first comparator includes: The type comparison module is configured to compare the type of the afterimage in the first afterimage region with the type of the afterimage in the second afterimage region; The probability comparison module is configured to compare the existence probability of the afterimage in the first afterimage region with the existence probability of the afterimage in the second afterimage region; and The coordinate comparison module is configured to compare the coordinates of the first redundant image region with the coordinates of the second redundant image region. The probability comparison module is configured to compare the existence probability of the afterimage in each of the first afterimage region and the second afterimage region with a preset reference probability, and to compare the difference between the existence probabilities of the afterimages in the first afterimage region and the second afterimage region with a preset reference error.

5. The display device according to claim 3, wherein, The first coordinate corrector is configured to extend the coordinates of the first afterimage region in a first direction to the boundary line between the first display area and the second display area, and to adjust the coordinates of the first afterimage region in a second direction to the average of the coordinates of the first afterimage region in the second direction and the coordinates of the second afterimage region in the second direction.

6. The display device according to claim 2, wherein, The first afterimage detector is configured to detect the number of afterimage pixels in the first display area and the coordinates of the afterimage pixels.

7. The display device according to claim 6, wherein, The first comparator is configured to compare the sum of the number of redundant pixels in a first comparison target area of ​​the first display area that is in contact with the boundary line between the first display area and the second display area and the number of redundant pixels in a second comparison target area of ​​the second display area that is in contact with the boundary line with a preset reference number.

8. A display device, comprising: The display panel includes a first display area and a second display area that are adjacent to each other. as well as A first data driver and a second data driver are configured to drive the first display area and the second display area, respectively. The first data driver includes: A first afterimage detector is configured to receive an input image and detect a first afterimage region including the afterimage in the first display area from the input image; The first comparator is configured to compare the distance between the boundary line between the first display area and the second display area and the first afterimage area with a preset reference distance; A first coordinate corrector is configured to correct the coordinates of the first redundant image region in response to the distance between the boundary line and the first redundant image region satisfying a preset reference; and The first data compensation unit is configured to generate a compensation data voltage based on the corrected first residual image region.

9. The display device according to claim 8, wherein, The second data driver includes: A second redundant image detector is configured to detect a second redundant image region of the second display region, including the redundant image. A second comparator is configured to compare the distance between the boundary line and the second redundant image region with a preset reference distance; and The second coordinate corrector is configured to correct the coordinates of the second redundant image region in response to the distance between the boundary line and the second redundant image region satisfying a preset reference.

10. The display device according to claim 8, wherein, In response to the distance between the boundary line and the first afterimage region being less than the preset reference distance, the first comparator is configured to transmit the afterimage correction signal to the first coordinate corrector.

Images