Display aging compensation method and apparatus, device, and storage medium

Abstract

The present application relates to the technical field of smart devices, and discloses a display aging compensation method and apparatus, a device, and a storage medium. The method comprises: determining a target pixel pressure value; determining a current display aging feature value on the basis of a target aging curve and the target pixel pressure value; determining a compensation factor on the basis of the current display aging feature value and a target aging compensation value; and determining a compensation factor modulation value on the basis of a current use state, and performing aging compensation on the basis of the compensation factor and the compensation factor modulation value. By means of the described method, after a current image signal is acquired, a target pixel pressure value is determined in combination with a current use state of a display screen, then a compensation factor and a compensation factor modulation value are each determined, the compensation factor is modulated using the compensation factor modulation value, and aging pre-compensation is performed on the basis of a target compensation factor, so that the quality of aging compensation is improved, the appearance of an aging phenomenon is delayed, and the defect of aging inconsistency caused by different cumulative use conditions of different pixels can be alleviated.

Description

Display aging compensation method, device, equipment and storage medium

[0001] This application claims priority to a Chinese patent application No.

[0002] 202410851104.7, entitled "Display aging compensation method, device, equipment and storage medium", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of intelligent devices, in particular to a display aging compensation method, device, equipment and storage medium. BACKGROUND

[0004] With the rapid development of XR technology, the quality requirements for near-eye display effects in XR scenarios are extremely high, for example, high pixel per inch (PPI), high resolution, high contrast, high brightness, and high response time, etc. To meet the above requirements, Micro OLED display technology has emerged, but the essence of the final display has not changed. The inherent aging problem of OLED becomes particularly important due to the high brightness display requirement. Currently, the common way to compensate for display aging is to additionally connect a separate sensing circuit to the anode of OLED, and additionally increase a set of aging detection circuit connected between the anode of OLED and the driving chip. However, the increase in circuit means an increase in pixel area, resulting in a decrease in PPI, which cannot meet the strong requirements of XR scenarios. Therefore, the quality of aging compensation by the above-mentioned method is low.

[0005] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0006] The main purpose of the present application is to provide a display aging compensation method, device, equipment and storage medium, which aims to solve the technical problem of low quality of aging compensation in the prior art.

[0007] To achieve the above-mentioned purpose, the present application provides a display aging compensation method, which comprises:

[0008] obtaining a current image signal, and determining a target pixel pressure value according to the current image signal and a current use state of a display screen;

[0009] determining a current display aging characteristic value based on a target aging curve and the target pixel pressure value;

[0010] determining a compensation factor according to the current display aging characteristic value and a target aging compensation value;

[0011] determining a compensation factor modulation value according to the current use state, and performing aging compensation according to the compensation factor and the compensation factor modulation value.

[0012] In an embodiment, the step of obtaining a current image signal and determining a target pixel pressure value according to the current image signal and a current use state of a display screen comprises:

[0013] obtaining a current image signal, and converting the current image signal to obtain a current pressure signal;

[0014] obtaining a set of screen parameters affecting pressure according to a current use state of a display screen;

[0015] obtaining a generation mode of a pixel pressure value corresponding to the current pressure signal;

[0016] modulating the pixel pressure value corresponding to the current pressure signal according to the set of screen parameters affecting pressure based on the generation mode;

[0017] accumulating the modulated pixel pressure value to obtain a target pixel pressure value.

[0018] In an embodiment, the step of determining a current display aging characteristic value according to a target aging curve and the target pixel pressure value comprises:

[0019] calculating an equivalent aging time corresponding to the target pixel pressure value according to a preset equivalent relationship;

[0020] determining a current display aging characteristic value according to the equivalent aging time based on a target aging curve.

[0021] In an embodiment, the step of determining a compensation factor according to the current display aging characteristic value and a target aging compensation value comprises:

[0022] determining a target display brightness according to a target aging compensation value;

[0023] determining an adjustment amount required to reach the target display brightness according to the current display aging characteristic value;

[0024] generating a compensation factor based on the generation mode according to the adjustment amount required to reach the target display brightness.

[0025] In an embodiment, the step of determining a compensation factor modulation value according to the current use state comprises:

[0026] obtaining a screen brightness parameter and a pixel parameter according to the current use state;

[0027] generating a screen brightness modulation gain value according to the screen brightness parameter;

[0028] generating a pixel modulation gain value according to the pixel parameter;

[0029] obtaining a compensation factor modulation value according to the screen brightness modulation gain and the pixel modulation gain value.

[0030] In an embodiment, the step of performing aging compensation according to the compensation factor and the compensation factor modulation value comprises:

[0031] amplifying the compensation factor when the generation mode is a tile generation mode;

[0032] modulating the amplified compensation factor according to the compensation factor modulation value to obtain a target compensation factor;

[0033] determining image data corresponding to a current image signal;

[0034] when the type of the target compensation factor is an offset compensation type, adjusting the image data according to the target compensation factor based on a pixel position addition and subtraction strategy;

[0035] when the type of the target compensation factor is a gain compensation type, adjusting the image data according to the target compensation factor based on a pixel position multiplication strategy to implement aging compensation.

[0036] In an embodiment, the step of amplifying the compensation factor when the generation mode is a tile generation mode comprises:

[0037] when the generation mode is a tile generation mode, performing bilinear interpolation on the compensation factor based on a linear interpolation strategy; or

[0038] copying the compensation factor based on a copying strategy to implement amplification of the compensation factor.

[0039] In addition, to achieve the above object, the present application further provides a display aging compensation device, which comprises:

[0040] an acquisition module, configured to acquire a current image signal, and determine a target pixel stress value according to the current image signal and a current use state of a display screen;

[0041] a characteristic value determination module, configured to determine a current display aging characteristic value based on a target aging curve and the target pixel stress value;

[0042] a compensation factor determination module, configured to determine a compensation factor according to the current display aging characteristic value and a target aging compensation value;

[0043] A compensation module is configured to determine a compensation factor modulation value according to the current usage state, and to perform aging compensation according to the compensation factor and the compensation factor modulation value.

[0044] In addition, to achieve the above object, the present application further provides a display aging compensation device, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the display aging compensation method.

[0045] In addition, to achieve the above object, the present application further provides a storage medium, which is a computer readable storage medium, and the storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the display aging compensation method.

[0046] The one or more technical solutions provided by the present application have at least the following technical effects: by acquiring a current image signal, determining a target pixel pressure value according to the current image signal and a current usage state of a display screen; determining a current display aging characteristic value based on a target aging curve and the target pixel pressure value; determining a compensation factor according to the current display aging characteristic value and a target aging compensation value; determining a compensation factor modulation value according to the current usage state, and performing aging compensation according to the compensation factor and the compensation factor modulation value; in the above manner, after acquiring the current image signal, the target pixel pressure value is determined in combination with the current usage state of the display screen, then the compensation factor and the compensation factor modulation value are determined respectively, the compensation factor is modulated by using the compensation factor modulation value, and the aging pre-compensation is performed according to the target compensation factor, so that the quality of the aging compensation can be improved, the occurrence of the aging phenomenon can be delayed, and the defect of inconsistent aging caused by different cumulative usage conditions of different pixels can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0047] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and serve to explain the principles of the present application together with the specification.

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced here, and obviously, other drawings can also be obtained by those skilled in the art without creative labor under the premise of these drawings.

[0049] FIG. 1 is a flowchart provided by an embodiment of the display aging compensation method of the present application;

[0050] FIG. 2 is a structural schematic diagram of a Micro OLED display system of the display aging compensation method provided by the embodiment of the present application;

[0051] FIG. 3 is a comparison diagram showing the effect of the display aging compensation method according to the first embodiment of the present application;

[0052] FIG. 4 is an image data adjustment diagram of the display aging compensation method according to the first embodiment of the present application;

[0053] FIG. 5 is a copy-based amplification diagram of the display aging compensation method according to the first embodiment of the present application;

[0054] FIG. 6 is a linear interpolation-based amplification diagram of the display aging compensation method according to the first embodiment of the present application;

[0055] FIG. 7 is a gray scale compensation diagram of the display aging compensation method according to the first embodiment of the present application;

[0056] FIG. 8 is a flow diagram of the display aging compensation method according to the second embodiment of the present application;

[0057] FIG. 9 is a module structure diagram of the display aging compensation device according to the embodiment of the present application;

[0058] FIG. 10 is a device structure diagram of the hardware running environment involved in the display aging compensation method according to the embodiment of the present application.

[0059] The object, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0060] It should be noted that the execution subject of the present embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device, a Micro OLED display system, etc. capable of realizing the above functions. The present embodiment and the following embodiments will be described below taking the Micro OLED display system as an example.

[0061] Based on this, the present embodiment provides a display aging compensation method. Referring to FIG. 1, FIG. 1 is a flow diagram of the display aging compensation method according to the first embodiment of the present application.

[0062] In the present embodiment, the display aging compensation method comprises steps S10-S40:

[0063] In step S10, a current image signal is acquired, and a target pixel pressure value is determined according to the current image signal and the current use state of the display screen.

[0064] It should be noted that the Micro OLED display system can be a data-driven display system, referring to FIG. 2, which is a structural schematic diagram of the Micro OLED display system, specifically comprising: a display screen, a display driving chip, a power control chip, a temperature detection module and a memory, wherein the display screen comprises a light emitting unit, a data signal line, a gate signal line and a pixel driving circuit, the connection relationship is that the power control chip is connected with the display screen and the display driving chip respectively, for providing the required voltage for the display screen and the display driving chip, the display driving chip is connected with the display screen, for sending the current image signal to the display screen and controlling the row scanning timing through the gate signal line, that is, when the gate signal line opens a row of pixels of the display screen, the current image signal will be converted into a voltage signal by the digital analog conversion module at this time to charge the current row, so as to make the pixel driving circuit drive the pixel light emitting unit to emit light with corresponding brightness; the display driving chip is connected with the memory, for storing some signals generated in the image data processing, such as the historical use data of each pixel; the screen temperature detection module is connected with the screen and the display driving chip respectively, for transmitting the temperature of the display screen to the display driving chip in real time, so as to make corresponding processing according to the real-time temperature.

[0065] It should be understood that the current use state refers to the use state of the display screen at the current time, which can be determined by parameters such as screen brightness and screen temperature, and the target pixel stress value refers to the final pixel stress value accumulated and stored in the memory, which can be determined by the current image signal and the current use state of the display screen.

[0066] Step S20, determining a current display aging characteristic value based on the target aging curve and the target pixel stress value.

[0067] It can be understood that the target aging curve refers to a curve recording the mapping relationship between equivalent aging time and display aging characteristic value, the current display aging characteristic value represents the current display aging degree, and the current display aging degree represents the percentage of the actual brightness of the pixel after aging to the theoretical brightness. The smaller the current display aging characteristic value is, the more serious the current display aging degree is.

[0068] Further, step S20 comprises: calculating an equivalent aging time corresponding to the target pixel stress value according to a preset equivalent relationship; and determining the current display aging characteristic value according to the equivalent aging time based on the target aging curve.

[0069] It should be understood that the preset equivalent relationship refers to an equivalent relationship used to calculate an equivalent aging time corresponding to a cumulative pressure value of a different pixel, and after an equivalent aging time corresponding to a target pixel pressure value is calculated, a current display aging characteristic value corresponding to the equivalent aging time is queried based on a target aging curve, for example, a current display aging characteristic value corresponding to an equivalent aging time t0 is d0, a current display aging characteristic value corresponding to an equivalent aging time t1 is d1, and considering the difference in aging rates of R, G, and B channels, different target aging curves are established for R, G, and B channels respectively.

[0070] In step S30, a compensation factor is determined according to the current display aging characteristic value and the target aging compensation value.

[0071] It should be understood that the target aging compensation value refers to a compensation target value for aging compensation, and the compensation factor refers to a factor for aging compensation. The compensation factor can be an image block level compensation factor, and the compensation factor can be determined comprehensively according to the current display aging characteristic value and the target aging compensation value.

[0072] It should be noted that after the current display aging characteristic value is determined, another memory is set in the embodiment to store the current display aging characteristic value and the compensation factor determined in combination with the target aging compensation value, and then the compensation factor is modulated to reduce the power consumption of aging compensation.

[0073] Further, in step S30, a target display brightness is determined according to the target aging compensation value, an adjustment amount required to reach the target display brightness is determined according to the current display aging characteristic value, and a compensation factor is generated based on the generation mode according to the adjustment amount required to reach the target display brightness.

[0074] It should be noted that in the embodiment, the generation mode of the compensation factor is divided into two types, which are: restoring the initial brightness of the aging pixel before aging after compensation, and the second is adjusting all pixels to the target display brightness through the compensation factor. For example, after being used for a period of time, the target display brightness can be set to 95% of the original brightness, and after being used for a period of time, the target display brightness can be changed to 90% of the initial brightness, or the target display brightness can be set to a percentage of the actual brightness of the most serious aging position to the initial brightness, for example, the percentage can be 95%.

[0075] It can be understood that the target display brightness refers to the display brightness that is finally intended to be adjusted, and after the target display brightness is determined, an adjustment amount required to reach the target display brightness is determined according to the current display aging characteristic value of each pixel position. The adjustment amount can be represented by offset or gain, and when the generation mode is an image block generation mode, the generated compensation factor is also adapted to the processing mode of the image block.

[0076] Step S40, determining a compensation factor modulation value according to the current use state, and performing aging compensation according to the compensation factor and the compensation factor modulation value.

[0077] It can be understood that, since the brightness of the display screen changes during use and the image content also changes constantly, the determined compensation factor needs to be modulated before being applied to pixel adjustment. At this time, a compensation factor modulation value needs to be introduced, which refers to a modulation value for modulating the compensation factor. The essence of aging compensation is to adjust the image data. After aging compensation, the image data is output to the display screen for timely display. The image data is changed to adjust the brightness of the pixels, thereby improving the aging phenomenon of the display screen.

[0078] Specifically, referring to FIG. 3, which is an effect comparison diagram, specifically, the upper side is the case where the picture appears aging phenomenon when displayed on the display screen, and the lower side is the case after pre-compensation by the embodiment. It can be known from the comparison between the upper side and the lower side that the aging compensation of the embodiment can obviously improve the aging phenomenon and delay the appearance of the aging phenomenon, thereby prolonging the service life of the Micro OLED screen product.

[0079] Further, the step of determining the compensation factor modulation value according to the current use state comprises: obtaining a screen brightness parameter and a pixel parameter according to the current use state; generating a screen brightness modulation gain value according to the screen brightness parameter; generating a pixel modulation gain value according to the pixel parameter; and obtaining the compensation factor modulation value according to the screen brightness modulation gain and the pixel modulation gain value.

[0080] It should be understood that the compensation factor modulation value is divided into screen brightness dimension and pixel dimension modulation gain values. After obtaining the current use state of the display screen, a screen brightness parameter and a pixel parameter are obtained according to the current use state, wherein the screen brightness parameter is used to generate a screen brightness modulation gain value, and the pixel parameter is used to generate a pixel modulation gain value. Then, the screen brightness modulation gain and the pixel modulation gain value constitute the compensation factor modulation value.

[0081] Further, the step of performing the aging compensation according to the compensation factor and the compensation factor modulation value comprises: when the generation mode is the image block generation mode, amplifying the compensation factor; modulating the amplified compensation factor according to the compensation factor modulation value to obtain a target compensation factor; determining image data corresponding to the current image signal; when the type of the target compensation factor is the offset compensation type, adjusting the image data according to the target compensation factor based on a pixel position addition and subtraction strategy; and when the type of the target compensation factor is the gain compensation type, adjusting the image data according to the target compensation factor based on a pixel position multiplication strategy to realize the aging compensation.

[0082] It can be understood that the generation mode refers to a mode of generating a pixel pressure value corresponding to a current pressure signal. After the generation mode is determined, it is judged whether the generation mode is the image block generation mode. If yes, it indicates that the compensation factor needs to be amplified, that is, a pixel-level compensation factor is generated. At this time, the amplified compensation factor can be applied to pixel adjustment. The target compensation factor refers to the modulated compensation factor.

[0083] It should be noted that the present embodiment sets multiple strategies for adjusting the image data by using the target compensation factor, which are respectively a pixel position addition and subtraction strategy and a pixel position multiplication strategy. Referring to FIG. 4, which is an image data adjustment schematic diagram, the specific process is as follows: after the image data corresponding to the current image signal is determined, it is judged whether the type of the target compensation factor is the offset compensation type. If yes, the pixel position is determined, and a target compensation factor corresponding to the aging state of the pixel position is added / subtracted based on the pixel position addition and subtraction strategy. The target compensation factor can also be referred to as an offset. If it is judged that the type of the target compensation factor is the gain compensation type, the pixel position is determined, and a target compensation factor corresponding to the aging state of the pixel position is multiplied based on the pixel position multiplication strategy. The target compensation factor can also be referred to as a gain. The gain can be greater than or less than 1.0 times. After the adjustment is completed, the aging compensation is realized.

[0084] Further, the step of amplifying the compensation factor when the generation mode is the image block generation mode comprises: when the generation mode is the image block generation mode, performing bilinear interpolation on the compensation factor based on a linear interpolation strategy; or copying the compensation factor based on a copying strategy to realize the amplification of the compensation factor.

[0085] It should be understood that when the generation mode is determined to be the image block generation mode, the compensation factor needs to be enlarged, and the embodiment uses a linear interpolation strategy and a copy strategy to enlarge the compensation factor. That is, the compensation factor is bilinearly interpolated based on the linear interpolation strategy to enlarge the compensation factor. Referring to FIG. 5, FIG. 5 is a schematic diagram of enlargement based on copying. Specifically, the level of the compensation factor on the left is the image block level, and the level of the compensation factor on the right is the pixel level. The hollow circle on the left upper corner of the image block represents the compensation factor.

[0086] It can be understood that, referring to FIG. 6, FIG. 6 is a schematic diagram of enlargement based on linear interpolation. Specifically, the level of the compensation factor on the left is the image block level, and the level of the compensation factor on the right is the pixel level. X is the pixel-level compensation factor obtained by bilinear interpolation. For example, the boxed X can be obtained by interpolation using the left upper compensation factor A, the left lower compensation factor B, the right upper compensation factor C, and the right lower compensation factor D at the position of the boxed X. Specifically, ((A*(y-dis_y)+B*dis_y)*(x-dis_x)+(C*(y-dis_y)+D*dis_y)*dis_x) / (x*y).

[0087] dis_y represents the vertical distance from the boxed X to the right upper compensation factor C, dis_x represents the horizontal distance from the boxed X to the left upper compensation factor A, x represents the distance from the left upper compensation factor A to the right upper compensation factor C, and y represents the distance from the left upper compensation factor A to the left lower compensation factor B.

[0088] It should be noted that, referring to FIG. 7, FIG. 7 is a schematic diagram of gray scale compensation. Specifically, the horizontal coordinate represents the pixel value, and the vertical coordinate represents the brightness. For compensation of the 255 gray scale after aging, the operation space can be left out in cooperation with Gamma adjustment. In the initial stage, Gamma1 can be used, and after being used for a period of time, Gamma2 is adjusted, so that compensation space 2 is left out. After being used for a period of time, Gamma3 is adjusted, so that compensation space 3 is left out.

[0089] The embodiment obtains a current image signal, determines a target pixel pressure value according to the current image signal and a current use state of a display screen, determines a current display aging characteristic value based on a target aging curve and the target pixel pressure value, determines a compensation factor according to the current display aging characteristic value and a target aging compensation value, determines a compensation factor modulation value according to the current use state, and performs aging compensation according to the compensation factor and the compensation factor modulation value. In this way, after the current image signal is obtained, the target pixel pressure value is determined in combination with the current use state of the display screen, the compensation factor and the compensation factor modulation value are then determined, the compensation factor is modulated by using the compensation factor modulation value, and aging compensation is performed according to the target compensation factor, so that the quality of aging compensation can be improved, the occurrence of aging can be delayed, and the defect of inconsistent aging caused by different cumulative use conditions of different pixels can be improved.

[0090] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as the above-mentioned first embodiment can be referred to the above description, and will not be described in detail. On this basis, please refer to FIG. 8, step S10 includes steps S101-S105:

[0091] In step S101, a current image signal is obtained, and the current image signal is converted to obtain a current pressure signal.

[0092] It should be noted that after the current image signal is obtained, the pixel value of each position is converted into a pressure signal corresponding to the pressure value by mapping based on the gray scale value corresponding to the current image signal. This operation can be performed pixel by pixel or in the form of a pixel block, such as a 4x4 or 2x2 pixel block. A representative pressure data is generated according to the pressure data in the pixel block, and then the current pressure signal is determined.

[0093] In step S102, a screen parameter set affecting pressure is obtained according to the current use state of the display screen.

[0094] It should be understood that the screen parameter set refers to a set of screen parameters affecting pressure changes. The screen parameter set includes but is not limited to screen brightness, screen temperature, and screen refresh rate. For example, the screen brightness may change with the use or user adjustment. The pressure generated by the same gray scale value under different brightness is different. The screen temperature changes with the display content or the environment, and the change of the screen temperature also causes the change of the pressure.

[0095] In step S103, the generation mode of the pixel pressure value corresponding to the current pressure signal is obtained.

[0096] It can be understood that the generation manner refers to a time when the pixel pressure value corresponding to the current pressure signal is generated, and the generation manner can be an image block generation manner or other generation manners, and the embodiment is not limited thereto.

[0097] In step S104, the pixel pressure value corresponding to the current pressure signal is modulated based on the generation manner according to the set of screen parameters affecting pressure.

[0098] It should be understood that after determining the generation manner of the pixel pressure value corresponding to the current pressure signal, the manner of modulating the pixel pressure value corresponding to the current pressure signal is determined based on the generation manner, for example, when the generation manner is an image block generation manner, the pixel block is modulated, specifically, the screen brightness, screen temperature, screen refresh rate and other parameters are obtained according to the set of screen parameters affecting pressure, then the corresponding modulation gain is generated, for example, the brightness modulation gain is generated by using the screen brightness, the temperature modulation gain is generated by using the screen temperature, and the refresh rate modulation gain is generated by using the screen refresh rate, then the pixel pressure value corresponding to the current pressure signal is modulated according to the brightness modulation gain, the temperature modulation gain and the refresh rate modulation gain, respectively.

[0099] It should be noted that in the embodiment, the order of modulating the pixel pressure value based on the above-mentioned multiple modulation gains is not limited, for example, the modulation order can be brightness modulation gain, temperature modulation gain and refresh rate modulation gain, or temperature modulation gain, brightness modulation gain and refresh rate modulation gain, etc.

[0100] In step S105, the modulated pixel pressure value is accumulated to obtain a target pixel pressure value.

[0101] It can be understood that the modulated pixel pressure value is stored in the memory for accumulation, and then the target pixel pressure value is obtained based on the accumulated pixel pressure value.

[0102] The embodiment obtains a current image signal, converts the current image signal to obtain a current pressure signal, obtains a screen parameter set affecting pressure according to a current use state of a display screen, obtains a generation mode of a pixel pressure value corresponding to the current pressure signal, modulates the pixel pressure value corresponding to the current pressure signal according to the screen parameter set affecting pressure based on the generation mode, accumulates the modulated pixel pressure value to obtain a target pixel pressure value, and determines the generation mode of the pixel pressure value corresponding to the current pressure signal after converting the current image signal to the current pressure signal, generates corresponding modulation gains according to the screen parameter set affecting pressure including screen brightness, screen temperature and screen refresh rate, modulates the pixel pressure value corresponding to the current pressure signal by using the modulation gains, and obtains the target pixel pressure value based on the accumulated modulated pixel pressure value, thereby effectively improving the accuracy of determining the target pixel pressure value.

[0103] The application further provides a display aging compensation device, please refer to figure 9, the display aging compensation device comprises:

[0104] The acquisition module 10 is used for acquiring a current image signal and determining a target pixel pressure value according to the current image signal and a current use state of a display screen.

[0105] The characteristic value determination module 20 is used for determining a current display aging characteristic value based on a target aging curve and the target pixel pressure value.

[0106] The compensation factor determination module 30 is used for determining a compensation factor according to the current display aging characteristic value and a target aging compensation value.

[0107] The compensation module 40 is used for determining a compensation factor modulation value according to the current use state, and performing aging compensation according to the compensation factor and the compensation factor modulation value.

[0108] The embodiment obtains a current image signal, determines a target pixel pressure value according to the current image signal and a current use state of a display screen, determines a current display aging characteristic value based on a target aging curve and the target pixel pressure value, determines a compensation factor according to the current display aging characteristic value and a target aging compensation value, determines a compensation factor modulation value according to the current use state, and performs aging compensation according to the compensation factor and the compensation factor modulation value. In this way, after the current image signal is obtained, the target pixel pressure value is determined in combination with the current use state of the display screen, the compensation factor and the compensation factor modulation value are then determined, the compensation factor is modulated by using the compensation factor modulation value, and aging pre-compensation is performed according to the target compensation factor, so that the quality of aging compensation can be improved, the occurrence of aging can be delayed, and the defect of inconsistent aging caused by different cumulative use conditions of different pixels can be improved.

[0109] The display aging compensation device provided in the application adopts the display aging compensation method in the above embodiment, and can solve the technical problem of low quality of aging compensation in the prior art. Compared with the prior art, the display aging compensation device provided in the application has the same beneficial effects as the display aging compensation method provided in the above embodiment, and other technical features in the display aging compensation device are the same as the features disclosed in the above embodiment, which will not be described herein.

[0110] In an embodiment, the obtaining module 10 is further configured to obtain a current image signal, convert the current image signal to obtain a current pressure signal, obtain a screen parameter set affecting pressure according to a current use state of a display screen, obtain a generation mode of a pixel pressure value corresponding to the current pressure signal, modulate the pixel pressure value corresponding to the current pressure signal based on the generation mode and the screen parameter set affecting pressure, and accumulate the modulated pixel pressure value to obtain a target pixel pressure value.

[0111] In an embodiment, the characteristic value determining module 20 is further configured to calculate an equivalent aging time corresponding to the target pixel pressure value according to a preset equivalent relationship, and determine a current display aging characteristic value based on a target aging curve and the equivalent aging time.

[0112] In an embodiment, the compensation factor determining module 30 is further configured to determine a target display brightness according to a target aging compensation value, determine an adjustment amount required to reach the target display brightness according to the current display aging characteristic value, and generate a compensation factor based on the generation mode and the adjustment amount required to reach the target display brightness.

[0113] In an embodiment, the compensation module 40 is further configured to obtain a screen brightness parameter and a pixel parameter according to the current use state; generate a screen brightness modulation gain value according to the screen brightness parameter; generate a pixel modulation gain value according to the pixel parameter; and obtain a compensation factor modulation value according to the screen brightness modulation gain and the pixel modulation gain value.

[0114] In an embodiment, the compensation module 40 is further configured to, when the generation mode is a block generation mode, amplify the compensation factor; modulate the amplified compensation factor according to the compensation factor modulation value to obtain a target compensation factor; determine image data corresponding to the current image signal; when the type of the target compensation factor is an offset compensation type, adjust the image data according to the target compensation factor based on a pixel position addition and subtraction strategy; and when the type of the target compensation factor is a gain compensation type, adjust the image data according to the target compensation factor based on a pixel position multiplication strategy, so as to implement the aging compensation.

[0115] In an embodiment, the compensation module 40 is further configured to, when the generation mode is a block generation mode, perform bilinear interpolation on the compensation factor based on a linear interpolation strategy, or copy the compensation factor based on a copy strategy, so as to amplify the compensation factor.

[0116] The present application provides a display aging compensation device, which comprises at least one processor and a memory connected to the at least one processor in communication; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the display aging compensation method in the above-mentioned embodiment one.

[0117] Reference is made to FIG. 10, which shows a structural schematic diagram of a display aging compensation device suitable for implementing the embodiments of the present application. The display aging compensation device in the embodiments of the present application can include, but is not limited to, mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (Personal Digital Assistant), PADs (Portable Application Description), PMPs (Portable Media Player), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), and the like, and fixed terminals such as digital TVs, desktop computers, and the like. The display aging compensation device shown in FIG. 10 is merely an example, and should not impose any limitation on the functions and use range of the embodiments of the present application.

[0118] As shown in FIG. 10, the display aging compensation device can include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.) that can perform various appropriate actions and processes according to programs stored in a read-only memory (ROM) 1002 or programs loaded from a storage device 1003 into a random access memory (RAM) 1004. Various programs and data required for the display aging compensation device to operate are also stored in the RAM 1004. The processing device 1001, the ROM 1002, and the RAM 1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices 1008 including, for example, an OLED (Organic Light-emitting Diodes) display, a speaker, a vibrator, etc.; the storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the display aging compensation device to communicate with other devices wirelessly or by wire to exchange data. Although the display aging compensation device with various systems is shown in the figure, it should be understood that all the shown systems are not required to be implemented or possessed. More or fewer systems can be alternatively implemented or possessed.

[0119] In particular, according to the embodiments disclosed in the present application, the processes described above with reference to the flowcharts can be implemented as a computer software program. The computer program contains program codes for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network through the communication device, or installed from the storage device 1003, or installed from the ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the methods of the embodiments disclosed in the present application are performed.

[0120] The display aging compensation device provided in the present application adopts the display aging compensation method in the above-mentioned embodiments, and can solve the technical problem of low quality of aging compensation in the prior art. Compared with the prior art, the display aging compensation device provided in the present application has the same beneficial effects as the display aging compensation method provided in the above-mentioned embodiments, and other technical features in the display aging compensation device are the same as the features disclosed in the previous embodiment method, which will not be described here.

[0121] It should be understood that various aspects of the disclosure can be implemented in hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0122] The above description is merely illustrative of the application and not restrictive.

[0123] The application provides a computer readable storage medium having stored thereon computer readable program instructions (i.e., a computer program) for performing the display aging compensation method in the above embodiments.

[0124] The computer readable storage medium provided by the application may, for example, be a U disk, but is not limited to an electric, magnetic, optical, electromagnetic, infrared, or semiconductor system, system, or device, or any combination thereof. More specific examples of the computer readable storage medium can include, but are not limited to, an electric connection with one or more conductive wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present embodiment, the computer readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer readable storage medium can be transmitted by any suitable medium, including but not limited to an electric wire, an optical cable, an RF (Radio Frequency), etc., or any suitable combination thereof.

[0125] The above computer readable storage medium can be included in a display aging compensation device; or can exist separately and not be assembled into a display aging compensation device.

[0126] Computer program code for carrying out operations of the present application can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider).

[0127] The flow diagrams and the block diagrams in the drawings are illustrations of architectures, functionalities, and operations that might be implemented in systems, methods, and user interfaces according to various embodiments of the present application. In this regard, each block in the flow diagrams or block diagrams can represent a module, a segment, or a portion of code that comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block can occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently or the blocks may

[0128] The modules involved in the embodiments of the present application can be implemented in the form of software or in the form of hardware. In some cases, the name of the module does not constitute a limitation on the module itself.

[0129] The readable storage medium provided by the present application is a computer readable storage medium, which stores computer readable program instructions (i.e. computer programs) for executing the display aging compensation method described above, and can solve the technical problem of low quality aging compensation in the prior art. Compared with the prior art, the computer readable storage medium provided by the present application has the same beneficial effects as the display aging compensation method provided by the above embodiments, and will not be described here.

[0130] The above merely describes some embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, which is made based on the technical concept of the present application and the content of the specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A display aging compensation method, characterized by, The method comprises: acquiring a current image signal, determining a target pixel pressure value according to the current image signal and a current use state of a display screen; determining a current display aging characteristic value based on a target aging curve and the target pixel pressure value; determining a compensation factor according to the current display aging characteristic value and a target aging compensation value; determining a compensation factor modulation value according to the current use state, and performing aging compensation according to the compensation factor and the compensation factor modulation value.

2. The method of claim 1, wherein, The step of acquiring a current image signal and determining a target pixel pressure value according to the current image signal and a current use state of a display screen comprises: acquiring a current image signal, converting the current image signal to obtain a current pressure signal; obtaining a set of screen parameters affecting pressure according to the current use state of the display screen; obtaining a generation mode of a pixel pressure value corresponding to the current pressure signal; modulating the pixel pressure value corresponding to the current pressure signal based on the generation mode and the set of screen parameters affecting pressure; accumulating the modulated pixel pressure value to obtain a target pixel pressure value.

3. The method of claim 1, wherein, The step of determining a current display aging characteristic value based on a target aging curve and the target pixel pressure value comprises: calculating an equivalent aging time corresponding to the target pixel pressure value according to a preset equivalent relationship; determining a current display aging characteristic value based on the target aging curve and the equivalent aging time.

4. The method of claim 1, wherein, The step of determining a compensation factor according to the current display aging characteristic value and a target aging compensation value comprises: determining a target display brightness according to the target aging compensation value; determining an adjustment amount required to reach the target display brightness according to the current display aging characteristic value; generating a compensation factor based on the generation mode and the adjustment amount required to reach the target display brightness.

5. The method of claim 1, wherein, The step of determining a compensation factor modulation value according to the current use state comprises: obtaining a screen brightness parameter and a pixel parameter according to the current use state; generating a screen brightness modulation gain value according to the screen brightness parameter; generating a pixel modulation gain value according to the pixel parameter; obtaining a compensation factor modulation value according to the screen brightness modulation gain and the pixel modulation gain value.

6. The method of any one of claims 1 to 5, wherein, The step of performing aging compensation according to the compensation factor and the compensation factor modulation value comprises: when the generation mode is an image block generation mode, amplifying the compensation factor; modulating the amplified compensation factor according to the compensation factor modulation value to obtain a target compensation factor; determining image data corresponding to the current image signal; when the type of the target compensation factor is an offset compensation type, adjusting the image data according to the target compensation factor based on a pixel position addition and subtraction strategy; when the type of the target compensation factor is a gain compensation type, adjusting the image data according to the target compensation factor based on a pixel position multiplication strategy to achieve aging compensation.

7. The method of claim 6, wherein, The step of amplifying the compensation factor when the generation mode is an image block generation mode comprises: when the generation mode is an image block generation mode, performing bilinear interpolation on the compensation factor based on a linear interpolation strategy; or The compensation factor is duplicated based on a duplication strategy to achieve amplification of the compensation factor.

8. A display aging compensation apparatus, characterized by comprising: The device comprises: An acquisition module is configured to acquire a current image signal, and determine a target pixel pressure value according to the current image signal and a current use state of a display screen; A characteristic value determination module is configured to determine a current display aging characteristic value based on a target aging curve and the target pixel pressure value; A compensation factor determination module is configured to determine a compensation factor according to the current display aging characteristic value and a target aging compensation value; A compensation module is configured to determine a compensation factor modulation value according to the current use state, and perform aging compensation according to the compensation factor and the compensation factor modulation value.

9. A display aging compensation apparatus, characterized by, The device comprises a memory, a processor, and a computer program stored on the memory and executable on the processor, and the computer program is configured to implement the steps of the display aging compensation method according to any one of claims 1 to 7.

10. A storage medium, characterized by The storage medium is a computer readable storage medium, and the storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the display aging compensation method according to any one of claims 1 to 7.

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