Display device and operating method for display device

Abstract

This disclosure provides a display device and an operating method for the display device. The display device includes an image data circuit, a recognition circuit, and a compensation circuit. The image data circuit outputs image data. The recognition circuit receives the image data and recognizes the image data to generate a recognition result. The compensation circuit generates a compensation signal based on the recognition result and compensates the image data based on the compensation signal.

Description

Technical Field

[0001] This disclosure relates to a display device and a method of operating the display device, particularly a display device and method of operating capable of compensating image data. Prior Technology

[0002] Display devices can generate data signals based on image data and use these data signals to display images corresponding to the image data. Depending on the design or context, the displayed image may exhibit textures with abnormal grayscale. Therefore, how to compensate for image data to improve the grayscale uniformity of the display device, at least depending on the design or context, is one of the key research focuses for those skilled in the art. Summary of the Invention

[0003] This disclosure provides a display device and operating method capable of compensating image data.

[0004] According to embodiments disclosed herein, the display device includes an image data circuit, a recognition circuit, and a compensation circuit. The image data circuit outputs image data. The recognition circuit is electrically connected to the image data circuit. The recognition circuit receives the image data and recognizes the image data to generate a recognition result. The compensation circuit is electrically connected to the recognition circuit. The compensation circuit generates a compensation signal based on the recognition result and compensates the image data based on the compensation signal.

[0005] According to embodiments disclosed herein, an operation method is used for a display device. The operation method includes: receiving an input image from a vehicle-mounted unit and generating image data based on the input image; receiving the image data and identifying the image data to generate an identification result; generating a compensation signal based on the identification result; and compensating the image data based on the compensation signal.

[0006] Based on the above, the display device identifies image data to generate an identification result, and then generates a compensation signal based on the identification result. The display device compensates for the image data based on the compensation signal. The display device can compensate for image data based on different designs or scenarios. In this way, the grayscale uniformity of the display device can be improved. Simple Explanation of the Diagram

[0007] Figure 1 is a schematic diagram of a display device according to an embodiment of the present disclosure. Figure 2 is a flowchart illustrating an operation method according to an embodiment of the present disclosure. Figure 3 is a schematic diagram of a display device according to an embodiment of the present disclosure. Figure 4 is a schematic diagram of a touch electrode and a scan line group according to an embodiment of the present disclosure. Figure 5 is a schematic diagram of compensation operation according to an embodiment of the present disclosure. Figure 6 is a schematic diagram of a display device according to an embodiment of the present disclosure. Figure 7 is a flowchart illustrating an operation method according to an embodiment of the present disclosure. Figure 8 is a flowchart illustrating an operation method according to an embodiment of the present disclosure. Figure 9 is a flowchart illustrating an operation method according to an embodiment of the present disclosure. Figure 10 is a flowchart illustrating an operation method according to an embodiment of the present disclosure. Implementation

[0008] This disclosure can be understood by referring to the following detailed description in conjunction with the accompanying drawings. It should be noted that, for purposes of clarity and ease of understanding, the various drawings in this disclosure depict portions of an electronic device, and some elements in the drawings may not be drawn to scale. Furthermore, the number and dimensions of each device depicted in the drawings are illustrative only and are not intended to limit the scope of this disclosure.

[0009] Certain terms are used throughout the description and in the following claims to refer to specific elements. As those skilled in the art will understand, electronic device manufacturers may use different names to refer to elements. This document is not intended to distinguish between elements with different names rather than different functions. In the following description and in the claims, the terms “comprising,” “including,” and “having” are used in an open-ended manner and should therefore be construed as meaning “including but not limited to…”. Thus, when the terms “comprising,” “including,” and / or “having” are used in the description of this disclosure, it indicates the presence, but is not limited to, of a corresponding feature, area, step, operation, and / or element, but is not limited to the presence of one or more corresponding features, areas, steps, operations, and / or components.

[0010] It should be understood that when a component is referred to as "coupled to," "connected to," or "conducted to" another component, the component can be directly connected to the other component and an electrical connection can be directly established, or there may be intermediate components between these components for relaying the electrical connection (indirect electrical connection). In contrast, when a component is referred to as "directly coupled to," "directly connected to," or "directly connected to" another component, there are no intermediate components.

[0011] Although terms such as first, second, third, etc., can be used to describe different components, such components are not limited by these terms. The terms are used only to distinguish a component from other components in the specification. Requests may not use the same terms repeatedly, but may use terms such as first, second, third, etc., relative to the required order of the components. Therefore, in the following description, a first component may be a second component in the request.

[0012] The display device disclosed herein may include pixel circuitry. Pixel circuitry may include light-emitting diodes (LEDs), such as organic light-emitting diodes (OLEDs), mini LEDs, micro LEDs, or quantum dot LEDs (including QLEDs, QDLEDs), or other suitable materials, or combinations thereof, but is not limited thereto. The display device may include, for example, a video wall display device, but is not limited thereto. The antenna device may be, for example, a liquid crystal antenna, but is not limited thereto. The antenna device may include, for example, an antenna splicing device, but is not limited thereto. It should be noted that the electronic device may be any of the aforementioned arrangements and combinations, but is not limited thereto. Furthermore, the electronic device may be rectangular, circular, polygonal, have curved edges, or other suitable shapes. The electronic device may have peripheral systems such as a drive system, control system, and light source system to support the display device, antenna device, or video wall device, but this disclosure is not limited thereto. Sensing devices may include cameras, infrared sensors, or fingerprint sensors, etc., and this disclosure is not limited thereto. In some embodiments, the sensing device may also include a flash, an infrared (IR) light source, other sensors, electronic components, or combinations thereof, but is not limited thereto.

[0013] In this disclosure, embodiments use the term "pixel" or "pixel unit" as a unit for describing a specific area containing at least one functional circuit for at least one specific function. The area of ​​a "pixel" depends on the unit used to provide the specific function; adjacent pixels may share the same portion or wires, but may also include their own specific portion therein. For example, adjacent pixels may share the same scan line or the same data line, but a pixel may also have its own transistor or capacitor.

[0014] It should be noted that the technical features in the different embodiments described below may be replaced, rearranged or combined with each other to form another embodiment without departing from the spirit of this disclosure.

[0015] Please refer to Figure 1, which is a schematic diagram of a display device according to an embodiment of the present disclosure. In this embodiment, the display device 100 includes an image data circuit 110, an identification circuit 120, and a compensation circuit 130. The image data circuit 110 outputs image data DIMG. For example, the image data circuit 110 can generate image data DIMG based on an input image IMG. The identification circuit 120 is electrically connected to the image data circuit 110. The identification circuit 120 receives the image data DIMG and identifies the image data DIMG to generate an identification result RS. In this embodiment, the compensation circuit 130 is electrically connected to the identification circuit 120. The compensation circuit 130 generates a compensation signal SC based on the identification result RS. The compensation circuit 130 compensates the image data DIMG based on the compensation signal SC to generate compensated image data DIMG'.

[0016] It is worth mentioning that the display device 100 identifies the image data DIMG to generate an identification result RS, and generates a compensation signal SC based on the identification result RS. The display device 100 also uses the compensation signal SC to compensate the image data DIMG. The display device 100 can compensate the image data DIMG based on different designs or scenarios. In this way, the grayscale uniformity of the display device 100 can be improved.

[0017] In this embodiment, the image data DIMG can be, for example, a digital signal. The compensation signal SC can be, for example, a digital adjustment value. The data signals SD and SD1 are, for example, analog signals (e.g., voltage signals, current signals, or PAM signals). Therefore, based on the compensation signal SC, the voltage value, current value, or amplitude of the data signal SD can be adjusted to generate the data signal SD1. Consequently, the corresponding grayscale is also adjusted.

[0018] For example, the identification circuit 120 can obtain at least one compensated display position of the display device 100 based on image data DIMG. The compensated display position can be the position of a pixel or a sub-pixel to be compensated. The identification circuit 120 generates an identification result RS based on the at least one compensated display position.

[0019] For another example, the identification circuit 120 can generate an identification result RS based on the polarity conversion of the image data DIMG. The identification result RS can be at least one compensated display position of the display device.

[0020] In this embodiment, the compensation circuit 130 may, for example, use the “Demura” compensation operation known to those skilled in the art to compensate for the image data DIMG.

[0021] Please refer to Figures 1 and 2. Figure 2 is a flowchart illustrating an operation method according to an embodiment of this disclosure. In this embodiment, operation method S100 is applicable to display device 100. Operation method S100 includes steps S110 to S130. In step S110, display device 100 receives image data DIMG and identifies the image data DIMG to generate an identification result RS. In step S120, display device 100 generates a compensation signal SC based on the identification result RS. In step S130, display device 100 compensates the image data DIMG based on the compensation signal SC.

[0022] The implementation examples of steps S110 to S130 have been clearly illustrated in the embodiment of Figure 1, and therefore will not be repeated here.

[0023] For example, operation method S100 can be applied to the automotive field. Therefore, before step S110, display device 100 can receive an input image IMG from the vehicle's head unit. Display device 100 can generate image data DIMG based on the input image IMG.

[0024] Please refer to Figure 3, which is a schematic diagram of a display device according to an embodiment of the present disclosure. In this embodiment, the display device 200 may be a touch display device. The display device 200 includes an image data circuit 210, a recognition circuit 220, a compensation circuit 230, a driving circuit 240, and a touch display panel 250. The image data circuit 210 is, for example, disposed in a timing controller TCON. The image data circuit 210 can generate image data DIMG based on an input image IMG.

[0025] The recognition circuit 220 is electrically connected to the image data circuit 210 and the touch display panel 250. The recognition circuit 220 receives image data DIMG and recognizes the image data DIMG to generate a recognition result RS. Furthermore, the recognition circuit 220 can also receive touch results RT and generate the recognition result RS based on the touch results RT and the image data DIMG.

[0026] The compensation circuit 230 is electrically connected to the image data circuit 210, the recognition circuit 220, and the display driving circuit 240. The compensation circuit 230 generates a compensation signal SC based on the recognition result RS. The compensation circuit 230 compensates the image data DIMG based on the compensation signal SC to generate compensated image data DIMG'. The display driving circuit 240 is electrically connected to the compensation circuit 230 and the touch display panel 250. The display driving circuit 240 generates a data signal SD1 based on the compensated image data DIMG'. The touch display panel 250 receives the data signal SD1 and displays the image based on the data signal SD1.

[0027] Furthermore, when no compensation signal SC is received, the compensation circuit 230 can provide image data DIMG to the display driving circuit 240. The display driving circuit 240 then generates a data signal SD based on the image data DIMG.

[0028] In this embodiment, the identification circuit 220 and the compensation circuit 230 are integrated in the same chip DIE1, but this disclosure is not limited thereto.

[0029] In this embodiment, the identification circuit 220 includes a touch sensing circuit 221, a processing circuit 222, and a setting circuit 223. The touch sensing circuit 221 is electrically connected to the touch display panel 250. The touch sensing circuit 221 receives the touch result RT from the touch display panel 250 and converts the touch result RT into a touch sensing signal STS. The touch sensing circuit 221 can be implemented, for example, by any form of analog front-end circuitry, but this disclosure is not limited thereto.

[0030] In this embodiment, the processing circuit 222 is electrically connected to the touch sensing circuit 221 and the image data circuit 210. The processing circuit 222 receives the touch sensing signal STS and the image data DIMG. The processing circuit 222 generates a notification signal SN. In this embodiment, the setting circuit 223 is electrically connected to the processing circuit 222 and the compensation circuit 230. The setting circuit 223 generates an identification result RS based on the notification signal SN.

[0031] For example, the processing circuit 222 generates a notification signal SN based on the polarity switching frequency of the image data DIMG. That is, the compensation circuit 230 can compensate the image data DIMG based on the polarity switching frequency of the image data DIMG.

[0032] For example, processing circuit 222 generates notification signal SN based on the polarity of image data DIMG and the touch position. In other words, compensation circuit 230 can compensate for image data DIMG based on its polarity and touch position.

[0033] For a further example, when continuous or frequent touch actions occur at at least one specific touch location, the common voltage in the touch display panel 250 will be disturbed and shifted. In this embodiment, the processing circuit 222 can determine the touch action based on the touch sensing signal STS and generate a notification signal SN based on the polarity of the image data DIMG and the touch action. Therefore, the compensation circuit 230 can compensate the image data DIMG based on the image data DIMG and the touch action.

[0034] In this embodiment, the operation method S100 can be applied to the display device 200.

[0035] In this embodiment, the setting circuit 223 can provide layout information RL based on the layout of the touch electrodes. The processing circuit 222 generates a notification signal SN based on the layout information RL.

[0036] In this embodiment, the processing circuit 222 and the setting circuit 223 are, for example, a central processing unit (CPU), or other programmable general-purpose or special-purpose microprocessors, digital signal processors (DSPs), programmable controllers, application-specific integrated circuits (ASICs), programmable logic devices (PLDs), or other similar devices or combinations thereof, which can load and execute computer programs.

[0037] Please refer to Figures 3 and 4. Figure 4 is a schematic diagram illustrating the touch electrode and scan line group according to an embodiment of this disclosure. In this embodiment, taking the "4 H-line" specification as an example, scan line group LSG1 includes scan lines LS1 to LS4. Scan line group LSG10 includes scan lines LS37 to LS40. The interference of the transition states of scan signals SS1 to SS4 of scan lines LS1 to LS4 in scan line group LSG1 is compensated for each other. For example, the interference generated by the falling edge or rising edge of scan signal SS1 can be compensated by the interference of the rising edge or falling edge of one of scan signals SS2 to SS4, thereby achieving feedthrough compensation. For example, the interference generated by the falling edge or rising edge of scan signal SS2 can be compensated by the interference of the rising edge or falling edge of one of scan signals SS1, SS3, and SS4, and so on. The above-described feedthrough compensation can reduce the display interference of scan signals on the display device 200.

[0038] It should be noted that touch electrode TED1 corresponds to scan lines LS1~LS38. Therefore, the number of scan lines corresponding to the touch electrode (i.e., 38 lines) is not an integer multiple of the number of scan lines in a single scan line group (i.e., 4 lines). Therefore, interference generated by the falling or rising edges of the scan signals SS37 and SS38 corresponding to touch electrode TED1 cannot be completely compensated. Similarly, interference generated by the falling or rising edges of the scan signals SS39 and SS40 corresponding to touch electrode TED2 cannot be completely compensated. Therefore, display interference of display device 200 occurs at position P1 (i.e., the compensated display position). The grayscale of display device 200 will shift at position P1. Position P1 is located at the edge of at least one of touch electrodes TED1 and TED2.

[0039] In this embodiment, the layout of touch electrodes TED1 and TED2 can be recorded in the setting circuit 223. Therefore, the setting circuit 223 can provide layout information RL. The processing circuit 222 generates a notification signal SN based on the layout information RL. The notification signal SN includes information about position P1. Therefore, the setting circuit 223 generates an identification result RS based on the notification signal SN. The compensation circuit 230 compensates the data corresponding to position P1 in the image data DIMG based on the identification result RS.

[0040] In this embodiment, when the layout of touch electrodes TED1 and TED2 changes, the setting circuit 223 can provide another different layout information RL based on the layout of the touch electrodes.

[0041] This invention is not limited to the layout of the touch electrodes TED1 and TED2 in this embodiment.

[0042] Please refer to Figures 1 and 5. Figure 5 is a schematic diagram illustrating the compensation operation according to an embodiment of this disclosure. In this embodiment, Figure 5 shows the uncompensated data signal SD. When the data signal SD is in the first polarity (e.g., positive polarity), the data signal SD has a voltage value A0(+) relative to the common voltage VCOM. When the data signal SD is in the second polarity (e.g., negative polarity), the data signal SD has a voltage value A0(-) relative to the common voltage VCOM. Generally, the absolute value of the voltage value A0(+) is approximately the same as the absolute value of the voltage value A0(-).

[0043] In one embodiment, the compensation circuit 130 compensates the image data DIMG based on the compensation signal SC to generate compensated image data DIMG'. Therefore, the data signal SD1 is generated based on the compensated image data DIMG'. The transformer value of the data signal SD1 is shifted. When the data signal SD1 is in the first polarity, the data signal SD1 has a voltage value A1(+) relative to the common voltage VCOM. When the data signal SD1 is in the second polarity, the data signal SD1 has a voltage value A1(-) relative to the common voltage VCOM. The absolute value of voltage value A2(+) is greater than the absolute value of voltage value A0(+). The absolute value of voltage value A2(-) is less than the absolute value of voltage value A0(-).

[0044] In one embodiment, data signal SD2 is generated based on compensated image data DIMG'. The voltage value of data signal SD2 is shifted. When data signal SD2 is in the first polarity, data signal SD2 has a voltage value A2(+) relative to the common voltage VCOM. When data signal SD2 is in the second polarity, data signal SD2 has a voltage value A2(-) relative to the common voltage VCOM. The absolute value of voltage value A2(+) is less than the absolute value of voltage value A0(+). The absolute value of voltage value A2(-) is greater than the absolute value of voltage value A0(-).

[0045] In one embodiment, data signal SD3 is generated based on compensated image data DIMG'. The transformer value of data signal SD3 is amplified. When data signal SD3 is in the first polarity, data signal SD3 has a voltage value A3(+) relative to the common voltage VCOM. When data signal SD3 is in the second polarity, data signal SD3 has a voltage value A3(-) relative to the common voltage VCOM. The absolute value of voltage value A3(+) is greater than the absolute value of voltage value A0(+). The absolute value of voltage value A3(-) is greater than the absolute value of voltage value A0(-).

[0046] In one embodiment, the transformer value of the data signal SD3 is reduced.

[0047] Please refer to Figure 6, which is a schematic diagram of a display device according to an embodiment of the present disclosure. In this embodiment, the display device 300 includes an image data circuit 310, a recognition circuit 320, a compensation circuit 330, a driving circuit 340, a display panel 350, and a buffer 360.

[0048] Image data circuit 310 receives an input image IMG and generates image data DIMG based on the input image IMG. The input image IMG can be a data stream. Therefore, image data circuit 310 can decode the input image IMG to generate image data DIMG. Image data circuit 310 can be implemented by an image decoder. Identification circuit 320 is electrically connected to image data circuit 310. Identification circuit 320 receives image data DIMG and identifies image data DIMG to generate identification result RS. In this embodiment, compensation circuit 330 is electrically connected to identification circuit 320. Compensation circuit 330 generates compensation signal SC based on identification result RS. Compensation circuit 330 compensates image data DIMG based on compensation signal SC to generate compensated image data DIMG'.

[0049] Buffer 360 is electrically connected to compensation circuit 330. Buffer 360 temporarily stores compensated image data DIMG'. Drive circuit 340 is electrically connected to buffer 360. Drive circuit 340 generates data signal SD1 based on compensated image data DIMG'.

[0050] When no compensation signal SC is received, buffer 360 temporarily stores the image data DIMG. The display driver circuit 340 then generates the data signal SD based on the image data DIMG.

[0051] The touch display panel 350 displays images based on one of the data signals SD and SD1.

[0052] In this embodiment, the operation method S100 can be applied to the display device 300.

[0053] In some embodiments, the identification circuit 320 and the compensation circuit 330 are integrated in the same chip, but this disclosure is not limited thereto.

[0054] In some embodiments, the image data circuit 310, the identification circuit 320, the compensation circuit 330, and the buffer 360 are integrated in the same circuit or chip, but this disclosure is not limited thereto.

[0055] In some embodiments, the display device 300 does not include the buffer 360.

[0056] Please refer to Figures 1 and 7. Figure 7 is a flowchart illustrating an operation method according to an embodiment of this disclosure. In this embodiment, operation method S200 is applicable to display device 100. Operation method S200 includes steps S210 to S250. In step S210, the identification circuit 120 receives an input image IMG and generates image data DIMG based on the input image IMG. In step S220, the identification circuit 120 determines whether the frequency of polarity reversal of the image data DIMG is greater than a set frequency. When the frequency of polarity reversal of the image data DIMG is less than or equal to the set frequency, this indicates that the polarity reversal of the image data DIMG is infrequent and will not interfere with the display of display device 100. Therefore, compensation circuit 130 generates a data signal SD based on the image data DIMG in step S230. Display device 100 outputs an image based on the data signal SD in step S240.

[0057] On the other hand, in step S220, when the frequency of polarity reversal of the image data DIMG is greater than a set frequency, this indicates that frequent polarity reversals of the image data DIMG may interfere with the display of the display device 100. Therefore, in step S250, the compensation circuit 130 compensates the image data DIMG to generate compensated image data DIMG', and generates a data signal SD1 based on the compensated image data DIMG'. Next, in step S240, the display device 100 outputs an image based on the data signal SD1.

[0058] In this embodiment, the display device 100 may be an automotive display device. Therefore, in step S210, the display device 100 receives the input image IMG from the automotive head unit and generates image data DIMG based on the input image IMG.

[0059] In some embodiments, operation method S200 can be applied to display devices 200 and 300. Taking display device 300 as an example, buffer 360 temporarily stores image data DIMG in step S230. Therefore, driving circuit 340 generates data signal SD based on image data DIMG in step S230. Display panel 350 outputs image based on data signal SD in step S230. Furthermore, buffer 360 temporarily stores compensated image data DIMG' in step S250. Therefore, driving circuit 340 generates data signal SD1 based on compensated image data DIMG' in step S250. Display panel 350 outputs image based on data signal SD1 in step S230.

[0060] Please refer to Figures 3 and 8. Figure 8 is a flowchart illustrating an operation method according to an embodiment of this disclosure. In this embodiment, operation method S300 is applicable to display device 200. Operation method S300 includes steps S310 to S350. In step S310, the identification circuit 220 receives image data DIMG and touch result RT. In step S320, the identification circuit 220 determines whether to compensate the image data DIMG based on the image data DIMG and the touch result RT.

[0061] Furthermore, in step S320, the identification circuit 220 obtains the frequency of polarity reversal of the image data DIMG based on the image data DIMG, and determines whether a compensation display position exists based on the touch result RT. When the frequency of polarity reversal is higher than the set frequency and / or a compensation display position exists, the compensation circuit 230 compensates the image data DIMG in step S330 to generate compensated image data DIMG'. The display driving circuit 240 generates a data signal SD1 based on the compensated image data DIMG' in step S330. The touch display panel 250 receives the data signal SD1 in step S340 and outputs an image based on the data signal SD1.

[0062] On the other hand, in step S320, when the frequency of polarity reversal is lower than or equal to the set frequency and the compensation display position exists, the compensation circuit 230 generates a data signal SD based on the image data DIMG in step S350. The touch display panel 250 outputs an image based on the data signal SD in step S340.

[0063] Please refer to Figures 1 and 9. Figure 9 is a flowchart illustrating an operation method according to an embodiment of this disclosure. In this embodiment, operation method S400 is applicable to display device 100. Display device 100 may be a vehicle dashboard or a vehicle display device. Operation method S400 includes steps S410 to S460. In step S410, the vehicle host receives vital signs. In step S420, the identification circuit 120 receives an input image IMG and generates image data DIMG based on the input image IMG. In step S430, the identification circuit 120 determines whether the frequency of polarity reversal of the image data DIMG is greater than a set frequency. When the frequency of polarity reversal of the image data DIMG is less than or equal to the set frequency, the compensation circuit 130 generates a data signal SD based on the image data DIMG in step S440. Display device 100 outputs an image based on the data signal SD in step S450. Display device 100 displays information about the user's vital signs (e.g., pulse, posture, mental state) based on the data signal SD in step S450.

[0064] On the other hand, in step S430, when the frequency of polarity reversal of the image data DIMG is greater than a set frequency, the compensation circuit 130 compensates the image data DIMG in step S460 to generate compensated image data DIMG', and generates a data signal SD1 based on the compensated image data DIMG'. Next, the display device 100 outputs an image based on the data signal SD1 in step S450. The display device 100 displays information about the user's vital signs based on the data signal SD1 in step S450.

[0065] In some embodiments, the operation method S400 may be applied to display devices 200 and 300.

[0066] Please refer to Figures 1 and 10. Figure 10 is a flowchart illustrating an operation method according to an embodiment of this disclosure. In this embodiment, operation method S500 is applicable to display device 100. Display device 100 may be an automotive display device. Operation method S500 includes steps S510 to S560. In step S510, the reversing radar is activated. In step S520, the identification circuit 120 receives an input image IMG and generates image data DIMG based on the input image IMG. In step S530, the identification circuit 120 determines whether the polarity reversal frequency of the image data DIMG is greater than a set frequency. When the polarity reversal frequency of the image data DIMG is less than or equal to the set frequency, the compensation circuit 130 generates a data signal SD based on the image data DIMG in step S540. In step S550, the display device 100 outputs an image based on the data signal SD. In step S550, the display device 100 displays an image outside the vehicle based on the data signal SD.

[0067] On the other hand, in step S530, when the frequency of polarity reversal of the image data DIMG is greater than a set frequency, the compensation circuit 130 compensates the image data DIMG in step S560 to generate compensated image data DIMG', and generates a data signal SD1 based on the compensated image data DIMG'. Next, the display device 100 outputs an image based on the data signal SD1 in step S550. The display device 100 displays an image outside the vehicle based on the data signal SD1 in step S550.

[0068] In some embodiments, the operation method S400 may be applied to display devices 200 and 300.

[0069] In summary, the display device identifies image data to generate an identification result, and then generates a compensation signal based on the identification result. The display device compensates for the image data based on the compensation signal. The display device can compensate for image data based on different designs or scenarios. In this way, the grayscale uniformity of the display device can be improved.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions disclosed herein, and are not intended to limit them. Although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments disclosed herein.

[0071] 100, 200, 300: Display devices 110, 210, 310: Image data circuits 120, 220, 320: Identification Circuit 130, 230, 330: Compensation circuit 240, 340: Drive circuit 250: Touch display panel 350: Display panel 360: Buffer A0(+), A0(-), A1(+), A1(-), A2(+), A2(-), A3(+), A3(-): Voltage values DIE1: Chip DIMG: Image Data DIMG': Compensated image data IMG: Input Image LS1~LS40: Scan lines LSG1, LSG10: Scan line groups P1: Location RL: Layout Information RS: Identification Results RT: Touch Results S100, S200, S300, S400, S500: Operating Instructions S110~S130, S210~S250, S310~S350, S410~S460, S510~S560: Steps SC: Compensation signal SD, SD1, SD2, SD3: Data signals SN: Notification signal SS1~SS40: Scan signals STS: Touch Sensing Signal TCON: Timing Controller TED1, TED2: Touch Electrodes VCOM: Common Voltage +, -: Polarity

Claims

1. A display device, comprising: Image data circuitry, configured to output image data; An identification circuit, electrically connected to the image data circuit and configured to receive the image data and identify the image data to generate an identification result; and a compensation circuit, electrically connected to the identification circuit and configured to generate a compensation signal based on the identification result and to compensate the image data based on the compensation signal, wherein: the identification circuit obtains at least one compensated display position of the display device based on the image data and generates the identification result based on the at least one compensated display position; the display device further includes touch electrodes and a plurality of scan line groups; interference between the states of multiple scan signals of multiple scan lines located in the same scan line group is compensated for each other; the number of scan lines corresponding to the touch electrodes is not an integer multiple of the number of scan lines of a single scan line group; and the at least one compensated display position is located at the edge of at least one of the touch electrodes.

2. The display device as claimed in claim 1, wherein the recognition circuit receives a touch result and generates the recognition result based on the touch result and the image data.

3. The display device as claimed in claim 1, wherein the recognition circuit generates the recognition result based on the polarity conversion of the image data.

4. The display device as claimed in claim 1, wherein the identification circuit and the compensation circuit are integrated in the same chip.

5. A method of operating a display device, comprising: The method includes receiving an input image from a vehicle-mounted unit and generating image data based on the input image; receiving the image data and identifying the image data to generate an identification result; generating a compensation signal based on the identification result; and compensating the image data based on the compensation signal. The step of identifying the image data to generate the identification result includes: obtaining at least one compensated display position of the display device based on the image data and generating the identification result based on the at least one compensated display position. The display device further includes touch electrodes and multiple scan line groups, wherein interference between the states of multiple scan signals of multiple scan lines located in the same scan line group is compensated for, wherein the number of scan lines corresponding to the touch electrodes is not an integer multiple of the number of scan lines in a single scan line group, and wherein the at least one compensated display position is located at the edge of at least one of the touch electrodes.

6. The method of operation as described in claim 5, wherein the step of identifying the image data to generate an identification result includes: The identification result is generated based on the polarity conversion of the image data.

Images