Display device

Abstract

The invention discloses a display device which comprises a display panel and a driving circuit, and the driving circuit is used for driving the display panel to display multiple frames of pictures. The driving circuit comprises a data accumulation module, a compensation value calculation module and a gray scale compensation module. The data accumulation module is used for accumulating the degradation factor data according to the target gray-scale value of at least one frame of picture output by the signal output end. The compensation value calculation module is used for calculating a target compensation value according to the degradation factor data and additional compensation data input by a user. And the gray scale compensation module is used for compensating the initial gray scale value of the Nth frame of picture input by the signal input end according to the target compensation value to obtain the target gray scale value of the Nth frame of picture. The target gray-scale value of the Nth frame of picture is used for driving the display panel to display the Nth frame of picture. In the process of calculating the compensation value, the additional compensation data input by the user is fused, the accuracy of the compensation value is improved, and the ghosting phenomenon of the display panel is fully and effectively improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display device. Background Art

[0002] With the development of display technology, users have higher and higher requirements for display effects. Due to the long-term display of the display device, the display panel is prone to image sticking (IS), which has a serious impact on the display effect. In order to improve the image sticking phenomenon, the relevant technology proposes to compensate the grayscale data of the picture according to the pixel compensation value, so as to perform the picture display according to the compensated grayscale data. However, the pixel compensation value in the related technology is obtained based on the test of the development panel during the development process. There may be deviations between the degradation characteristics of the development panel and the degradation characteristics of the mass-produced panel actually used by the user, resulting in inaccurate pixel compensation values, and it is impossible to achieve effective compensation of the grayscale data to effectively improve the image sticking phenomenon. Summary of the Invention

[0003] An embodiment of the present application provides a display device, comprising a display panel and a driving circuit; wherein the driving circuit is used to drive the display panel to display multiple frames, and the driving circuit includes: a data accumulation module, connected to the signal output end of the driving circuit, for accumulating degradation factor data based on the target grayscale value of at least one frame output by the signal output end; a compensation value calculation module, connected to the data accumulation module, for calculating a target compensation value based on the degradation factor data and additional compensation data input by a user; a grayscale compensation module, connected to the compensation value calculation module and the signal input end of the driving circuit, for compensating the initial grayscale value of the Nth frame input by the signal input end according to the target compensation value to obtain the target grayscale value of the Nth frame; the target grayscale value of the Nth frame is used to drive the display panel to display the Nth frame, where N is a positive integer.

[0004] Optionally, the compensation value calculation module includes: a degradation amount prediction unit, connected to the data accumulation module, for predicting the pixel degradation amount based on the degradation factor data and the additional compensation data; a compensation value calculation unit, connected to the degradation amount prediction unit, for calculating the target compensation value based on the pixel degradation amount.

[0005] Optionally, the degradation amount prediction unit includes: a first user compensation subunit, connected to the data accumulation module, for correcting the degradation factor data according to a first compensation value input by the user to obtain target factor data; the additional compensation data includes the first compensation value; a degradation amount prediction subunit, connected to the first user compensation subunit, for predicting the pixel degradation amount based on the target factor data.

[0006] Optionally, the first user compensation subunit is configured to perform product processing on the degradation factor data and the first compensation value input by the user to obtain the target factor data.

[0007] Optionally, the degradation amount prediction subunit is used to: determine the predicted luminous efficiency based on the degradation mapping data and the target factor data; the degradation mapping data is used to indicate the mapping relationship between the degradation factor data and the pixel luminous efficiency; and determine the pixel degradation amount based on the initial luminous efficiency and the predicted luminous efficiency.

[0008] Optionally, the compensation value calculation module includes: a degradation amount prediction unit, connected to the data accumulation module, for predicting the pixel degradation amount based on the degradation factor data; a compensation value calculation unit, connected to the degradation amount prediction unit, for calculating the target compensation value based on the pixel degradation amount and the additional compensation data.

[0009] Optionally, the compensation value calculation unit includes: a compensation value calculation subunit, connected to the degradation amount prediction unit, for calculating an initial compensation value based on the pixel degradation amount; a second user compensation subunit, connected to the compensation value calculation subunit, for correcting the initial compensation value based on a second compensation value input by the user to obtain the target compensation value; the additional compensation data includes the second compensation value.

[0010] Optionally, the second user compensation subunit is configured to perform product processing on the initial compensation value and the second compensation value input by the user to obtain the target compensation value.

[0011] Optionally, the compensation value calculation subunit is configured to: determine a current brightness value according to the pixel degradation amount; and determine the initial compensation value according to the current brightness value and a target brightness value of the Nth frame.

[0012] Optionally, the data accumulation module includes: a current conversion unit, connected to the signal output end of the driving circuit, for performing current conversion on the target grayscale value of each frame output by the signal output end to obtain current data of each frame; a data accumulation unit, connected to the current conversion unit, for accumulating the degradation factor data based on the current data of at least one frame.

[0013] In summary, the technical solution provided by the embodiment of the present application accumulates degradation factor data, calculates the target compensation value based on the degradation factor data and the additional compensation data input by the user, and then compensates the initial grayscale value of each frame according to the target compensation value to obtain the target grayscale value of each frame to drive the display panel to display each frame. In the process of calculating the compensation value, the embodiment of the present application incorporates the additional compensation data input by the user. When using the display device, the user can adjust the compensation effect in a targeted manner according to the actual use of the display panel, compensate for the deviation between the degradation characteristics of the development panel used in the development process and the degradation characteristics of the mass-produced panel actually used by the user, improve the accuracy of the compensation value, and realize effective and accurate compensation of grayscale data for different display panels, meet the personalized needs of users, and fully and effectively improve the ghosting phenomenon of the display panel, thereby improving the picture display effect of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of a display device;

[0015] Figure 2 It is a comparative diagram of degradation characteristics;

[0016] Figure 3 It is a schematic diagram of grayscale compensation;

[0017] Figure 4 is a schematic diagram of a driving circuit provided in an embodiment of the present application;

[0018] Figure 5 is a schematic diagram of another driving circuit provided in an embodiment of the present application;

[0019] Figure 6 is a schematic diagram of grayscale compensation provided by an embodiment of the present application;

[0020] Figure 7 This is a schematic diagram of user compensation provided by an embodiment of the present application;

[0021] Figure 8 is a schematic diagram of another driving circuit provided in an embodiment of the present application;

[0022] Figure 9 is a schematic diagram of another user compensation provided by an embodiment of the present application;

[0023] Figure 10 is a schematic diagram of another driving circuit provided in an embodiment of the present application;

[0024] Figure 11 is a schematic diagram of another user compensation provided by an embodiment of the present application;

[0025] Figure 12 This is a schematic diagram of another driving circuit provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] The following will describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings. The described technical solutions are only used to explain and illustrate the concept of the present application and should not be regarded as limiting the scope of protection of the present application.

[0027] In addition, the term "a plurality of" in the embodiments of the present application refers to two or more. The terms "first" and "second" in the embodiments of the present application are used to distinguish different technical features, and do not indicate any order, quantity or importance.

[0028] The various embodiments provided in this application are similar, and features in different embodiments may be combined with each other.

[0029] The order in which the following embodiments are described is not intended to limit the preferred order of the embodiments.

[0030] See also Figure 1 , Figure 1 is a schematic diagram of a display device. The display device includes but is not limited to any of the following types: LCD (Liquid Crystal Display), AMOLED (Active Matrix Organic Light Emitting Diode) display, Micro LED (Micro Light Emitting Diode) display, Mini Led (Miniature Light Emitting Diode) display, OLED (Organic Light Emitting Diode) display, etc. It should be understood that Figure 1 The display device shown is only an example and does not constitute a limitation to the embodiments of the present application.

[0031] like Figure 1As shown, the display device may include a power management chip 001, a timing controller 002, a source driver circuit 003, a gate driver circuit 004, and a display panel 005. The timing controller 002, source driver circuit 003, and gate driver circuit 004 are all connected to the power management chip 001, and the source driver circuit 003 and gate driver circuit 004 are all connected to the display panel 005. The power management chip 001 is used to supply power to the timing controller 002, source driver circuit 003, and gate driver circuit 004, as well as to provide gamma voltages, etc. to the source driver circuit 003. The timing controller 002 is used to provide data signals to the source driver circuit 003 so that the source driver circuit 003 controls the brightness or color of the image on the display panel 005. Furthermore, the timing controller 002 is used to provide timing signals to the gate driver circuit 004 so that the gate driver circuit 004 controls the on / off state of the pixel units in the display panel 005.

[0032] It should be understood that the driving circuit described in the following embodiments can be implemented as the above-mentioned timing controller 002 or source driving circuit 003, or be located in the above-mentioned timing controller 002 or source driving circuit 003, and the embodiments of the present application are not limited to this.

[0033] Due to long-term display, the display panel is prone to image sticking (IS), which seriously affects the display quality. To improve the image sticking phenomenon, related technologies propose to compensate the grayscale data of the picture according to pixel compensation values ​​and perform picture display based on the compensated grayscale data.

[0034] See also Figure 2 , Figure 2 It is a comparative diagram of degradation characteristics. Figure 2 As shown, the degradation characteristics of the development panels tested during the development process may differ from those of the mass-produced panels actually used by users. Furthermore, the degradation characteristics of different mass-produced panels may also vary. The pixel compensation values ​​used in related technologies are based on testing of the development panels during the development process, and a uniform pixel compensation value is used for different mass-produced panels. This results in inaccurate pixel compensation values, making it impossible to effectively compensate for grayscale data during actual display to effectively improve image sticking.

[0035] See also Figure 3 , Figure 3 is a schematic diagram of grayscale compensation. For example, the afterimage phenomenon can be defined as the difference between the actual display brightness and the target display brightness being greater than or equal to 3.5%. Figure 3As shown, if there is no grayscale compensation, the display panel will have a ghosting phenomenon; if the degradation characteristics of the display panel are the same as the degradation characteristics of the development panel used in the research during the development process, then grayscale compensation is performed according to the pixel compensation value obtained by testing the development panel during the development process, which can improve the ghosting phenomenon; if the degradation characteristics of the display panel are better than the degradation characteristics of the development panel used in the research during the development process, then grayscale compensation is performed according to the pixel compensation value obtained by testing the development panel during the development process, which will lead to over-compensation and the ghosting phenomenon will still exist; if the degradation characteristics of the display panel are worse than the degradation characteristics of the development panel used in the research during the development process, then grayscale compensation is performed according to the pixel compensation value obtained by testing the development panel during the development process, which will lead to insufficient compensation and the ghosting phenomenon will still exist.

[0036] See also Figure 4 , Figure 4 Schematic diagram of a driving circuit provided by an embodiment of the present application. The driving circuit can be applied to a display device, which also includes a display panel connected to the driving circuit, and the driving circuit is used to drive the display panel to display multiple frames. Figure 4 As shown, the driving circuit includes: a data accumulation module 100 , a compensation value calculation module 200 and a grayscale compensation module 300 .

[0037] The data accumulation module 100 is connected to the signal output terminal of the driving circuit, and is used to accumulate degradation factor data according to the target grayscale value of at least one frame of picture outputted from the signal output terminal.

[0038] The compensation value calculation module 200 is connected to the data accumulation module 100 and is used to calculate a target compensation value according to the degradation factor data and the additional compensation data input by the user.

[0039] The grayscale compensation module 300 is connected to the compensation value calculation module 200 and the signal input terminal of the driving circuit. It is configured to compensate the initial grayscale value of the Nth frame inputted at the signal input terminal according to the target compensation value to obtain the target grayscale value of the Nth frame. The target grayscale value of the Nth frame is used to drive the display panel to display the Nth frame, where N is a positive integer.

[0040] During the display process of the display device, the usage data of the display panel can be continuously monitored to accumulate degradation factor data. The degradation factor data refers to data on factors that cause pixel degradation in the display panel. In some embodiments, the degradation factor data includes, but is not limited to, current data and temperature data. The current data may refer to the amount of current passing through the pixel during operation; the temperature data may refer to the time the pixel is exposed to a high temperature environment during operation.

[0041] See also Figure 5 , Figure 5Schematic diagram of another driving circuit provided in an embodiment of the present application. Figure 5 As shown, taking the degradation factor data including current data as an example, in some embodiments, the data accumulation module 100 includes: a current conversion unit 110 and a data accumulation unit 120. The current conversion unit 110 is connected to the signal output terminal of the driving circuit and is used to convert the target grayscale value of each frame output by the signal output terminal into current to obtain current data for each frame. The data accumulation unit 120 is connected to the current conversion unit 110 and is used to accumulate degradation factor data based on the current data of at least one frame. The current data for each frame can be implemented as an APL (Average Picture Level). Therefore, the current conversion unit 110 can convert the target grayscale value of each pixel in each frame into a current value, such as by obtaining the current value corresponding to the target grayscale value based on a table lookup, and then averaging the current values ​​of all pixels in each frame to obtain the current data for each frame.

[0042] Based on the accumulated degradation factor data, the amount of pixel degradation on the display panel can be determined, and the pixel compensation value can be further determined based on the pixel degradation amount. In the process of determining the pixel compensation value based on the degradation factor data, the embodiment of the present application incorporates additional compensation data input by the user. The compensation value calculation module 200 calculates the target compensation value based on the degradation factor data and the additional compensation data input by the user.

[0043] When using the display device, the user can input additional compensation data at any time according to the display effect of the display panel. For example, if the user finds that the display panel has a ghosting phenomenon during use of the display device, the user can input or adjust the additional compensation data in the display device. The display device can provide a data input interface, and the user can trigger the display device to display the data input interface on the display panel through voice, gesture, touch, remote control, etc., and then the user can perform data input operations on the data input interface through voice, gesture, touch, remote control, etc., so that the display device receives the additional compensation data input by the user.

[0044] The additional compensation data can be compensation data for degradation factor data or compensation data for pixel compensation values. For details on the content and usage of the additional compensation data, please refer to the following embodiments, which will not be elaborated here.

[0045] The grayscale compensation module 300 compensates the initial grayscale value of each frame input to the signal input terminal of the driver circuit based on the target compensation value calculated by the compensation value calculation module 200 to obtain the target grayscale value of each frame, so that the driver circuit further drives the display panel to display each frame based on the target grayscale value of each frame. It should be understood that, taking the current display of the Nth frame as an example, the Nth frame can be any frame. The data accumulation module 100 can accumulate degradation factor data starting from the power-on of the display device, that is, accumulate degradation factor data based on the target grayscale value of each frame before the Nth frame. The compensation value calculation module 200 can then calculate the target compensation value based on the real-time accumulated degradation factor data and the additional compensation data input by the user. The grayscale compensation module 300 then compensates the initial grayscale value of the Nth frame based on the target compensation value to obtain the target grayscale value of the Nth frame. The grayscale compensation module 300 can perform product processing, summation processing, etc. on the target compensation value and the initial grayscale values ​​of the Nth frame to obtain the target grayscale value of the Nth frame.

[0046] In summary, the technical solution provided by the embodiment of the present application accumulates degradation factor data, calculates the target compensation value based on the degradation factor data and the additional compensation data input by the user, and then compensates the initial grayscale value of each frame according to the target compensation value to obtain the target grayscale value of each frame to drive the display panel to display each frame. In the process of calculating the compensation value, the embodiment of the present application incorporates the additional compensation data input by the user. When using the display device, the user can adjust the compensation effect in a targeted manner according to the actual use of the display panel, compensate for the deviation between the degradation characteristics of the development panel used in the development process and the degradation characteristics of the mass-produced panel actually used by the user, improve the accuracy of the compensation value, and realize effective and accurate compensation of grayscale data for different display panels, meet the personalized needs of users, and fully and effectively improve the ghosting phenomenon of the display panel, thereby improving the picture display effect of the display device.

[0047] See also Figure 6 , Figure 6 Schematic diagram of grayscale compensation provided by the embodiment of the present application. Figure 6 As shown, when a user uses a display device, if no afterimage phenomenon occurs, the user does not need to adjust the compensation effect; if afterimage phenomenon occurs, the user can input additional compensation data to adjust the compensation effect. After incorporating the user's additional compensation, the afterimage phenomenon can be improved or disappear.

[0048] In some embodiments, the compensation value calculation module 200 includes a degradation amount prediction unit 210 and a compensation value calculation unit 220. The degradation amount prediction unit 210 is connected to the data accumulation module 100 and is configured to predict the amount of pixel degradation based on the degradation factor data. The compensation value calculation unit 220 is connected to the degradation amount prediction unit 210 and is configured to calculate a target compensation value based on the amount of pixel degradation.

[0049] See also Figure 7 , Figure 7 This is a schematic diagram of user compensation provided by an embodiment of the present application. Figure 7 As shown, the degradation characteristics of the display panel can be the same as the degradation characteristics of the development panel used in the research during the development process. However, the degradation factor data accumulated by the data accumulation module 100 may have deviations. For example, the degradation factor data accumulated by the data accumulation module 100 may be greater or less than the actual degradation factor data, thereby affecting the accuracy of subsequent pixel degradation prediction. Therefore, in this embodiment of the present application, the user can enter additional compensation data to perform user compensation for the accumulated degradation factor data.

[0050] See also Figure 8 , Figure 8 Schematic diagram of another driving circuit provided in an embodiment of the present application. Figure 8 As shown, the compensation value calculation module 200 may include: a degradation amount prediction unit 210 and a compensation value calculation unit 220. The degradation amount prediction unit 210 is connected to the data accumulation module 100 and is used to predict the pixel degradation amount based on the degradation factor data and the additional compensation data input by the user; the compensation value calculation unit 220 is connected to the degradation amount prediction unit 210 and is used to calculate the target compensation value based on the pixel degradation amount.

[0051] The pixel degradation amount refers to the deviation between the current luminous efficiency of a pixel and its initial luminous efficiency. Typically, the initial luminous efficiency of a pixel is 100%. As the display device ages, the luminous efficiency of the pixel decreases. To determine the extent of pixel degradation, the degradation amount prediction unit 210 predicts the pixel degradation amount.

[0052] In some embodiments, as Figure 8 As shown, the degradation amount prediction unit 210 may include a first user compensation subunit 211 and a degradation amount prediction subunit 212. The first user compensation subunit 211 is connected to the data accumulation module 100 and is configured to modify the degradation factor data based on a first compensation value input by the user to obtain target factor data. The additional compensation data input by the user includes the first compensation value. The degradation amount prediction subunit 212 is connected to the first user compensation subunit 211 and is configured to predict the amount of pixel degradation based on the target factor data.

[0053] The first user compensation subunit 211 can obtain a first compensation value input by the user. This first compensation value is additional compensation data input by the user in response to the accumulation of degradation factor data. The first user compensation subunit 211 can add or multiply the first compensation value by the degradation factor data output by the data accumulation module 100 to obtain target factor data. In some embodiments, the first user compensation subunit 211 is configured to perform a product process on the degradation factor data and the first compensation value input by the user to obtain the target factor data. Specifically, the first user compensation subunit 211 can include a multiplication circuit to perform a product process on the degradation factor data and the first compensation value input by the user.

[0054] For example, taking the example of obtaining target factor data by performing a product process on the degradation factor data and the first compensation value, since the degradation factor data accumulated by the data accumulation module 100 may be greater than or less than the actual degradation factor data, the first compensation value may be greater than or less than 1. When the degradation factor data accumulated by the data accumulation module 100 is greater than the actual degradation factor data, a first compensation value less than 1 may be set to reduce the accumulated degradation factor data; when the degradation factor data accumulated by the data accumulation module 100 is less than the actual degradation factor data, a first compensation value greater than 1 may be set to increase the accumulated degradation factor data. To avoid over-correction of the degradation factor data, in some embodiments, the first compensation value ranges from 0.8 to 1.2.

[0055] The degradation amount prediction subunit 212 is used to predict the pixel degradation amount based on the target factor data output by the first user compensation subunit 211. The display device may store degradation mapping data, which is used to indicate the mapping relationship between the degradation factor data and the pixel luminous efficiency. The degradation amount prediction subunit 212 may be used to determine the predicted luminous efficiency based on the degradation mapping data and the target factor data; and then determine the pixel degradation amount based on the initial luminous efficiency and the predicted luminous efficiency. The degradation mapping data may be as follows: Figure 7 For example, the pixel luminous efficiency corresponding to the target factor data is found from the degradation mapping data as the predicted luminous efficiency; then the initial luminous efficiency and the predicted luminous efficiency are subtracted to obtain the pixel degradation amount.

[0056] See also Figure 9 , Figure 9 This is a schematic diagram of another user compensation provided by an embodiment of the present application. Figure 9As shown, the degradation characteristics of the display panel may differ from the degradation characteristics of the development panel used in the research during the development process. Therefore, even if the degradation factor data accumulated by the data accumulation module 100 is consistent, the difference in degradation characteristics may lead to deviations in the calculation of the pixel compensation value, thereby affecting the compensation effect on the grayscale data. Therefore, in this embodiment of the present application, the user can input additional compensation data to perform user compensation on the calculation of the pixel compensation value.

[0057] See also Figure 10 , Figure 10 Schematic diagram of another driving circuit provided in an embodiment of the present application. Figure 10 As shown, the compensation value calculation module 200 may include a degradation amount prediction unit 210 and a compensation value calculation unit 220. The degradation amount prediction unit 210 is connected to the data accumulation module 100 and is configured to predict the amount of pixel degradation based on the degradation factor data. The compensation value calculation unit 220 is connected to the degradation amount prediction unit 210 and is configured to calculate a target compensation value based on the pixel degradation amount and additional compensation data input by the user.

[0058] The target compensation value refers to the pixel compensation value after user compensation. The grayscale compensation module 300 compensates the initial grayscale value of each frame according to the target compensation value to obtain the target grayscale value for each frame. The compensation value calculation unit 220 can first calculate the initial compensation value based on the pixel degradation amount, and then calculate the target compensation value based on the initial compensation value and the additional compensation data input by the user.

[0059] In some embodiments, as Figure 10 As shown, the compensation value calculation unit 220 may include a compensation value calculation subunit 221 and a second user compensation subunit 222. The compensation value calculation subunit 221 is connected to the degradation amount prediction unit 210 and is configured to calculate an initial compensation value based on the pixel degradation amount. The second user compensation subunit 222 is connected to the compensation value calculation subunit 221 and is configured to modify the initial compensation value based on a second compensation value input by the user to obtain a target compensation value. The additional compensation data input by the user includes the second compensation value.

[0060] The compensation value calculation subunit 221 can calculate the initial compensation value based on the pixel degradation amount. The initial compensation value can be equal to the pixel degradation amount; or, the initial compensation value can be greater than or less than the pixel degradation amount. In some embodiments, the compensation value calculation subunit 221 can also obtain the target brightness value of each frame, and then determine the initial compensation value based on the pixel degradation amount and the target brightness value. For example, taking the Nth frame as an example, the compensation value calculation subunit 221 is used to: determine the current brightness value based on the pixel degradation amount; determine the initial compensation value based on the current brightness value and the target brightness value of the Nth frame. The current brightness value can be the current luminous efficiency of the pixel. The current brightness value can be obtained by subtracting the pixel degradation amount from the initial luminous efficiency of the pixel. Then, the target brightness value of the Nth frame can be subtracted from the current brightness value to obtain the initial compensation value.

[0061] The second user compensation subunit 222 can obtain a second compensation value input by the user. This second compensation value is additional compensation data input by the user based on different degradation characteristics. The second user compensation subunit 222 can add or multiply the second compensation value by the initial compensation value output by the compensation value calculation subunit 221 to obtain a target compensation value. In some embodiments, the second user compensation subunit 222 is configured to perform a product process on the initial compensation value and the second compensation value input by the user to obtain the target compensation value. That is, the second user compensation subunit 222 can include a multiplication circuit to perform a product process on the initial compensation value and the second compensation value input by the user.

[0062] For example, taking the example of obtaining the target compensation value by performing the product processing on the initial compensation value and the second compensation value, since the degradation characteristics of the display panel may be better than the degradation characteristics of the development panel, or may be worse than the degradation characteristics of the development panel. When the degradation characteristics of the display panel are better than the degradation characteristics of the development panel, a second compensation value less than 1 can be set to reduce the pixel compensation value to avoid over-compensation of the grayscale data; when the degradation characteristics of the display panel are worse than the degradation characteristics of the development panel, a second compensation value greater than 1 can be set to increase the pixel compensation value to avoid under-compensation of the grayscale data. To avoid over-correction of the pixel compensation value, in some embodiments, the second compensation value ranges from 0.8 to 1.2.

[0063] See also Figure 11 , Figure 11This is a schematic diagram of another user compensation provided by an embodiment of the present application. In actual applications, there may be deviations in the accumulation of degradation factor data, and the degradation characteristics of the display panel may be different from the degradation characteristics of the development panel. That is, the degradation factor data accumulated by the data accumulation module 100 may be greater than or less than the actual degradation factor data, and the degradation characteristics of the display panel may be better or worse than the degradation characteristics of the development panel. Therefore, in an embodiment of the present application, the user can input additional compensation data to perform user compensation for the accumulation of degradation factor data and the calculation of pixel compensation values.

[0064] See also Figure 12 , Figure 12 Schematic diagram of another driving circuit provided in an embodiment of the present application. Figure 12 As shown, the compensation value calculation module 200 may include a degradation amount prediction unit 210 and a compensation value calculation unit 220. The degradation amount prediction unit 210 is connected to the data accumulation module 100 and is configured to predict the amount of pixel degradation based on the degradation factor data and a first compensation value input by the user. The compensation value calculation unit 220 is connected to the degradation amount prediction unit 210 and is configured to calculate a target compensation value based on the amount of pixel degradation and a second compensation value input by the user. The additional compensation data input by the user includes the first compensation value and the second compensation value.

[0065] like Figure 12 As shown, the degradation amount prediction unit 210 may include a first user compensation subunit 211 and a degradation amount prediction subunit 212. The first user compensation subunit 211 is connected to the data accumulation module 100 and is configured to correct the degradation factor data based on a first compensation value input by the user to obtain target factor data. The degradation amount prediction subunit 212 is connected to the first user compensation subunit 211 and is configured to predict the pixel degradation amount based on the target factor data.

[0066] like Figure 12 As shown, the compensation value calculation unit 220 may include a compensation value calculation subunit 221 and a second user compensation subunit 222. The compensation value calculation subunit 221 is connected to the degradation amount prediction subunit 212 and is configured to calculate an initial compensation value based on the pixel degradation amount. The second user compensation subunit 222 is connected to the compensation value calculation subunit 221 and is configured to modify the initial compensation value based on a second compensation value input by the user to obtain a target compensation value.

[0067] related Figure 12 For an introduction to each module, see the Figure 8 and Figure 10 The description of the embodiments will not be elaborated here.

[0068] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0069] The above is a detailed introduction to a display device provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, based on the ideas of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display device, characterized in that: The device comprises a display panel and a driving circuit; wherein the driving circuit is used to drive the display panel to display multiple frames, and the driving circuit comprises: A data accumulation module (100) is connected to the signal output terminal of the driving circuit and is used to accumulate degradation factor data according to the target grayscale value of at least one frame of picture output by the signal output terminal; a compensation value calculation module (200), connected to the data accumulation module (100), for calculating a target compensation value based on the degradation factor data and additional compensation data input by a user; A grayscale compensation module (300) is connected to the compensation value calculation module (200) and the signal input terminal of the driving circuit, and is used to compensate the initial grayscale value of the Nth frame inputted from the signal input terminal according to the target compensation value, so as to obtain the target grayscale value of the Nth frame; the target grayscale value of the Nth frame is used to drive the display panel to display the Nth frame, where N is a positive integer.

2. The display device according to claim 1, wherein The compensation value calculation module (200) comprises: A degradation amount prediction unit (210), connected to the data accumulation module (100), for predicting a pixel degradation amount based on the degradation factor data and the additional compensation data; The compensation value calculation unit (220) is connected to the degradation amount prediction unit (210) and is used to calculate the target compensation value according to the pixel degradation amount.

3. The display device according to claim 2, wherein: The degradation amount prediction unit (210) includes: A first user compensation subunit (211), connected to the data accumulation module (100), is used to correct the degradation factor data according to a first compensation value input by the user to obtain target factor data; the additional compensation data includes the first compensation value; The degradation amount prediction subunit (212) is connected to the first user compensation subunit (211) and is used to predict the pixel degradation amount based on the target factor data.

4. The display device according to claim 3, wherein: The first user compensation subunit (211) is used for: The degradation factor data and the first compensation value input by the user are multiplied to obtain the target factor data.

5. The display device according to claim 3, wherein The degradation amount prediction subunit (212) is used to: Determining a predicted luminous efficiency based on degradation mapping data and the target factor data; the degradation mapping data is used to indicate a mapping relationship between the degradation factor data and the pixel luminous efficiency; The pixel degradation amount is determined according to the initial luminous efficiency and the predicted luminous efficiency.

6. The display device according to claim 1, wherein The compensation value calculation module (200) comprises: A degradation amount prediction unit (210), connected to the data accumulation module (100), is used to predict the pixel degradation amount based on the degradation factor data; The compensation value calculation unit (220) is connected to the degradation amount prediction unit (210) and is used to calculate the target compensation value according to the pixel degradation amount and the additional compensation data.

7. The display device according to claim 6, wherein: The compensation value calculation unit (220) comprises: A compensation value calculation subunit (221), connected to the degradation amount prediction unit (210), is used to calculate an initial compensation value according to the pixel degradation amount; A second user compensation subunit (222) is connected to the compensation value calculation subunit (221) and is used to correct the initial compensation value according to a second compensation value input by the user to obtain the target compensation value; the additional compensation data includes the second compensation value.

8. The display device according to claim 7, wherein: The second user compensation subunit (222) is used for: A product process is performed on the initial compensation value and the second compensation value input by the user to obtain the target compensation value.

9. The display device according to claim 7, wherein: The compensation value calculation subunit (221) is used for: determining a current brightness value according to the pixel degradation amount; The initial compensation value is determined according to the current brightness value and the target brightness value of the Nth frame.

10. The display device according to claim 1, wherein The data accumulation module (100) comprises: A current conversion unit (110) is connected to the signal output terminal of the driving circuit and is used to perform current conversion on the target grayscale value of each frame output by the signal output terminal to obtain current data of each frame; A data accumulation unit (120) is connected to the current conversion unit (110) and is used to accumulate the degradation factor data based on the current data of at least one frame.

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