A voltage drop compensation method, computer device and storage medium

Abstract

The present invention discloses a voltage drop compensation method, a computer device and a storage medium, wherein the voltage drop compensation method comprises: obtaining the brightness of a target display panel in a non-aging stage, determining the brightness of the target display panel after each aging stage according to the brightness of the target display panel in the non-aging stage, the brightness of a reference display panel in the non-aging stage and the brightness of the reference display panel after each aging stage, determining the voltage drop compensation value of the target display panel in the non-aging stage and after each aging stage according to the brightness of the target display panel in the non-aging stage and after each aging stage, thereby performing voltage drop compensation on the target display panel in the non-aging stage and after each aging stage according to the voltage drop compensation value of the target display panel in the non-aging stage and after each aging stage, thereby reducing the brightness non-uniformity of the target display panel in the non-aging stage and after each aging stage, and improving the display effect of the target display panel.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a voltage drop compensation method, a computer device and a storage medium. Background Art

[0002] With the rapid development of display technology, people have higher and higher requirements for the display effect of display panels. Among them, organic light-emitting diode (OLED) display panels have broad application prospects due to their advantages of high luminous brightness, light volume, fast response speed, and easy to achieve color display and large-screen display. However, the existing OLED display panels have the problem of uneven brightness due to the existence of voltage drop (IR Drop), which affects the display effect of the display panel. Summary of the invention

[0003] The invention discloses a voltage drop compensation method, a computer device and a storage medium to solve the problem that the display effect of a display panel is affected by uneven brightness of the display panel.

[0004] In a first aspect, the present invention discloses a voltage drop compensation method, comprising: obtaining the brightness of a target display panel in a non-aging stage; determining the brightness of the target display panel after each aging stage according to the brightness of the target display panel in the non-aging stage, the brightness of a reference display panel in the non-aging stage, and the brightness of the reference display panel after each aging stage; determining the voltage drop compensation value of the target display panel in the non-aging stage and after each aging stage according to the brightness of the target display panel in the non-aging stage and after each aging stage, so as to perform voltage drop compensation on the target display panel in the non-aging stage and after each aging stage, respectively.

[0005] In some optional examples, determining the brightness of the target display panel after each aging stage according to the brightness of the target display panel in the un-aging stage, the brightness of the reference display panel in the un-aging stage, and the brightness of the reference display panel after each aging stage includes: determining a proportional relationship between the brightness of the target display panel and the brightness of the reference display panel according to the brightness of the target display panel in the un-aging stage and the brightness of the reference display panel in the un-aging stage; determining the brightness of the target display panel after each aging stage according to the proportional relationship and the brightness of the reference display panel after each aging stage.

[0006] In some optional examples, determining the brightness of the target display panel after each aging stage according to the proportional relationship and the brightness of the reference display panel after each aging stage includes: substituting the proportional relationship and the brightness of the reference display panel after any aging stage into the following formula Lbn =L an *(L b0 / L a0 ), determine the brightness of the target display panel after the aging stage; wherein, L b0 / L a0 Indicates the proportional relationship, L b0 represents the brightness of the target display panel in the unaged stage, L a0 represents the brightness of the reference display panel in the unaged stage, L bn represents the brightness of the target display panel after the aging stage, L an represents the brightness of the reference display panel after the aging stage.

[0007] In some optional examples, the target display panel and the reference display panel both include multiple display areas, and determining the brightness of the target display panel after each aging stage according to the brightness of the target display panel in the unaging stage, the brightness of the reference display panel corresponding to the target display panel in the unaging stage, and the brightness of the reference display panel after each aging stage includes: determining the brightness of the multiple display areas of the target display panel after each aging stage according to the brightness of the multiple display areas of the target display panel in the unaging stage, the brightness of the multiple display areas of the reference display panel in the unaging stage, and the brightness of the multiple display areas of the reference display panel after each aging stage; determining the voltage drop compensation value of the target display panel in the unaging stage and after each aging stage according to the brightness of the target display panel in the unaging stage and after each aging stage includes: determining the voltage drop compensation value of the multiple display areas of the target display panel in the unaging stage and after each aging stage according to the brightness of the multiple display areas of the target display panel in the unaging stage and after each aging stage, so as to perform voltage drop compensation on the multiple display areas of the target display panel in the unaging stage and after each aging stage, respectively.

[0008] In some optional examples, determining the voltage drop compensation value of the target display panel in the un-aging stage and after each aging stage according to the brightness of the target display panel in the un-aging stage and after each aging stage includes: determining the voltage drop compensation value of the target display panel in the un-aging stage or after the aging stage according to the brightness of the target display panel in the un-aging stage or after any aging stage and a reference brightness, the reference brightness including an average value of brightness of multiple display areas of the target display panel after the aging stage or the brightness of the middle display area of ​​the target display panel after the aging stage.

[0009] In some optional examples, determining the voltage drop compensation value of the target display panel in the un-aging stage or after the aging stage according to the brightness of the target display panel in the un-aging stage or after any aging stage and the reference brightness includes: substituting the brightness of the target display panel in the un-aging stage or after any aging stage and the reference brightness into the following formula: b =jj*(L b ' / L b ) G , determining the voltage drop compensation value of the target display panel in the un-aging stage or after the aging stage; wherein, offset b represents the voltage drop compensation value of the target display panel at the jth grayscale in the un-aging stage or after the aging stage, L b represents the brightness of the target display panel at the jth grayscale in the un-aging stage or after the aging stage, L b ' represents the reference brightness of the target display panel at the jth grayscale, and G represents the target gamma value of the target display panel.

[0010] In some optional examples, the voltage drop compensation value is a voltage drop compensation value at any gray scale, and also includes: determining the voltage drop compensation value of the target display panel after each aging stage at other gray scales according to the voltage drop compensation value of the target display panel after each aging stage at at least one gray scale, so as to perform voltage drop compensation on the target display panel after each aging stage at each gray scale respectively.

[0011] In some optional examples, determining the voltage drop compensation value of the target display panel after each aging stage at other grayscales according to the voltage drop compensation value of the target display panel after each aging stage at at least one grayscale includes: substituting the voltage drop compensation value of the target display panel after any aging stage at one grayscale into the following formula: bx =offset by *(x / y), determine the voltage drop compensation value of the target display panel after the aging stage at any other grayscale; or substitute the voltage drop compensation value of the target display panel after any aging stage at two grayscales into the following formula: bx =offset by +(offset bz -offset by )*(xy) / (zy), determine the voltage drop compensation value of the target display panel after the aging stage at any other grayscale; wherein, offset bxrepresents the voltage drop compensation value of the target display panel after the aging stage at any other grayscale, offset by represents the voltage drop compensation value of the target display panel after any aging stage at a grayscale, offset bz represents the voltage drop compensation value of the target display panel after any aging stage at another gray scale, x represents any other gray scale, y represents one gray scale, and z represents another gray scale.

[0012] In a second aspect, the present invention discloses a computer device, comprising: a memory for storing at least one set of instructions; and a processor for executing the at least one set of instructions to execute the voltage drop compensation method as described in any one of the above items.

[0013] In a third aspect, the present invention discloses a storage medium, wherein the storage medium stores at least one set of instructions, and the at least one set of instructions is used to enable a processor to execute the voltage drop compensation method as described in any one of the above items.

[0014] The voltage drop compensation method, computer device and storage medium provided by the present invention obtain the brightness of the target display panel in the un-aging stage, and then determine the brightness of the target display panel after each aging stage according to the brightness of the target display panel in the un-aging stage, the brightness of the reference display panel corresponding to the target display panel in the un-aging stage and the brightness of the reference display panel after each aging stage. According to the brightness of the target display panel in the un-aging stage and after each aging stage, the voltage drop compensation value of the target display panel in the un-aging stage and after each aging stage is determined, so that according to the voltage drop compensation value of the target display panel in the un-aging stage and after each aging stage, the voltage drop compensation can be performed on the target display panel in the un-aging stage and after each aging stage, respectively, so as to reduce the brightness non-uniformity of the target display panel in the un-aging stage and after each aging stage, and improve the display effect of the target display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the background technology, the drawings required for use in the embodiments of the present invention or the background technology will be described below.

[0016] Figure 1 A flowchart of a voltage drop compensation method disclosed in one embodiment of the present invention;

[0017] Figure 2 A schematic diagram of a curve showing a change in brightness of a display panel versus aging time disclosed in an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of an arrangement of multiple display areas disclosed in an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of an arrangement of multiple display areas disclosed in another embodiment of the present invention;

[0020] Figure 5 A schematic diagram of a target gamma curve disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] With the development of OLED display technology, OLED display panels are widely used in terminal products such as mobile phones and computers. In OLED display panels, all sub-pixels are powered by the power supply voltage (VDD) output by the power supply terminal of the driver chip. However, due to the different physical distances between different sub-pixels and the driver chip, the wiring lengths and resistances between different sub-pixels and the driver chip are different, resulting in different voltage drops after the same power supply voltage signal is transmitted through wirings of different lengths or resistances, resulting in different brightness of sub-pixels receiving power supply voltages with different voltage drops, which in turn causes uneven brightness of the display panel, affecting the display effect of the display panel.

[0023] At present, the compensation methods for display panel voltage drop mainly include internal compensation and external compensation. Internal compensation mainly relies on the optimization of display panel circuit design, while external compensation mainly uses a brightness meter to capture the brightness of the display panel, and after determining the voltage drop based on the brightness, removes the voltage drop through voltage compensation or current compensation. Among them, external compensation has become the main compensation method for voltage drop due to its obvious compensation effect and simple implementation.

[0024] However, current external compensation solutions all obtain compensation values ​​by testing the display panel at the production stage, i.e., before it leaves the factory. That is, they all compensate for the voltage drop of the display panel before it leaves the factory. However, after the display panel has been used for a period of time outside the factory, loads such as the display panel circuit will age, causing the brightness of the display panel to decay. If the compensation value before leaving the factory is still used for compensation, there is a risk of insufficient compensation or failure of the display panel.

[0025] Based on this, the present invention discloses a voltage drop compensation scheme, which takes the measured brightness change of the reference display panel after each aging stage as a benchmark, calculates the brightness change of the target display panel after each aging stage, and calculates the voltage drop compensation of the target display panel after each aging stage based on the brightness of the target display panel after each aging stage, thereby improving the brightness uniformity of the display panel after each aging stage.

[0026] As an optional implementation of the content disclosed in the present invention, an embodiment of the present invention discloses a voltage drop compensation method for performing brightness compensation on a display panel after each aging stage to improve the brightness uniformity of the display panel after each aging stage. Figure 1 As shown, Figure 1 The present invention discloses a flow chart of a voltage drop compensation method according to an embodiment of the present invention. The voltage drop compensation method includes:

[0027] S101: Obtaining the brightness of a target display panel in a non-aging stage;

[0028] In the embodiment of the present invention, the non-aging stage includes the test stage before the display panel leaves the factory. Of course, in some embodiments, the non-aging stage may also include the use stage of the display panel just leaving the factory. The target display panel is any display panel that needs to be compensated for brightness uniformity. The display panel may be an OLED display panel or an AMOLED display panel, etc.

[0029] S102: determining the brightness of the target display panel after each aging stage according to the brightness of the target display panel in the non-aging stage, the brightness of the reference display panel in the non-aging stage, and the brightness of the reference display panel after each aging stage;

[0030] In the embodiment of the present invention, the reference display panel corresponding to the target display panel is a display panel with the same specifications as the target display panel. For example, the reference display panel and the target display panel have the same size, resolution, and sub-pixel arrangement. The inventors have found that Figure 2 As shown, the curve of the change of the brightness of the display panel with the aging time is a linear curve or an approximately linear curve, and the curves of the display panels with the same specifications are the same or similar. Based on this, the brightness of the reference display panel after each aging stage can be obtained in advance, and the brightness of the target display panel after each aging stage can be calculated based on this. It can be understood that each aging stage refers to dividing the aging time of the display panel into multiple time periods, and each time period corresponds to an aging stage.

[0031] In some embodiments of the present invention, an optical measuring device such as a brightness meter can be used to measure the brightness of a reference display panel in a pre-aging stage and the brightness after each aging stage, and an optical measuring device such as a brightness meter can be used to measure the brightness of a target display panel in a pre-aging stage. Then, based on the brightness of the target display panel in the pre-aging stage, the brightness of a reference display panel corresponding to the target display panel in the pre-aging stage, and the brightness of the reference display panel after each aging stage, the brightness of the target display panel after each aging stage is calculated.

[0032] S103: Determine voltage drop compensation values ​​of the target display panel before aging and after each aging stage according to the brightness of the target display panel before aging and after each aging stage, so as to perform voltage drop compensation on the target display panel before aging and after each aging stage respectively.

[0033] In an embodiment of the present invention, after determining the brightness of the target display panel in the un-aging stage and after each aging stage, the voltage drop compensation value of the target display panel in the un-aging stage and after each aging stage can be calculated, and the voltage drop compensation value of the target display panel in the un-aging stage and after each aging stage is written into the hardware storage module of the target display panel, so as to call the corresponding voltage drop compensation value in the corresponding stage to perform voltage drop compensation on the target display panel, thereby reducing the brightness non-uniformity of the target display panel in the un-aging stage and after each aging stage, and improving the display effect of the target display panel.

[0034] In some embodiments of the present invention, determining the brightness of the target display panel after each aging stage according to the brightness of the target display panel in the un-aging stage, the brightness of the reference display panel corresponding to the target display panel in the un-aging stage, and the brightness of the reference display panel after each aging stage includes: determining the proportional relationship between the brightness of the target display panel and the brightness of the reference display panel according to the brightness of the target display panel in the un-aging stage and the brightness of the reference display panel in the un-aging stage; determining the brightness of the target display panel after each aging stage according to the proportional relationship between the brightness of the target display panel and the brightness of the reference display panel and the brightness of the reference display panel after each aging stage.

[0035] On this basis, in some embodiments of the present invention, according to the proportional relationship between the brightness of the target display panel and the brightness of the reference display panel and the brightness of the reference display panel after each aging stage, determining the brightness of the target display panel after each aging stage includes: substituting the proportional relationship between the brightness of the target display panel and the brightness of the reference display panel and the brightness of the reference display panel after any aging stage into the following formula L bn =L an *(L b0 / L a0 ), determine the brightness of the target display panel after the aging stage.

[0036] Among them, L b0 / L a0 Indicates the ratio of the brightness of the target display panel to the brightness of the reference display panel, L b0 Indicates the brightness of the target display panel before aging, L a0 Indicates the brightness of the reference display panel in the unaged stage, L bn Indicates the brightness of the target display panel after the aging stage, L an Represents the brightness of a reference display panel after a burn-in period.

[0037] Of course, the present invention is not limited to this. In other embodiments, the proportional relationship between the brightness of the target display panel and the brightness of the reference display panel can be determined based on the brightness of the target display panel after any aging stage and the brightness of the reference display panel after the same aging stage, and the brightness of the target display panel after each other aging stage can be determined based on the proportional relationship and the brightness of the reference display panel after each other aging stage.

[0038] In some embodiments of the present invention, the target display panel and the reference display panel may include only one display area. Of course, the present invention is not limited thereto. In other embodiments, the target display panel and the reference display panel may also include multiple display areas.

[0039] In some embodiments, Figure 3 As shown, Figure 3 A schematic diagram of an arrangement of multiple display areas disclosed in an embodiment of the present invention, wherein the multiple display areas of the reference display panel include the first display area to the fifth display area, such as Pa1 to Pa5, and the multiple display areas of the target display panel also include the first display area to the fifth display area, such as Pb1 to Pb5, and Pa1 to Pa5 or Pb1 to Pb5 are arranged sequentially in a direction away from the driving chip.

[0040] In other embodiments, Figure 4 As shown, Figure 4 A schematic diagram of an arrangement of multiple display areas disclosed in another embodiment of the present invention, wherein the multiple display areas of the reference display panel include the first display area to the ninth display area, such as Pa1 to Pa9, and the multiple display areas of the target display panel also include the first display area to the ninth display area, such as Pb1 to Pb9, and Pa1 to Pa9 or Pb1 to Pb9 are arranged in an array.

[0041] Of course, the embodiments of the present invention are described by taking 5 or 9 display areas as examples, and are not limited thereto. It is understandable that each display area may include multiple sub-pixels. For example, each display area may include multiple red sub-pixels, multiple blue sub-pixels, and multiple green sub-pixels.

[0042] On this basis, in some embodiments of the present invention, determining the brightness of the target display panel after each aging stage according to the brightness of the target display panel in the non-aging stage, the brightness of the reference display panel in the non-aging stage, and the brightness of the reference display panel after each aging stage includes: determining the brightness of multiple display areas of the target display panel after each aging stage according to the brightness of multiple display areas of the target display panel in the non-aging stage, the brightness of multiple display areas of the reference display panel in the non-aging stage, and the brightness of multiple display areas of the reference display panel after each aging stage.

[0043] Determining the voltage drop compensation value of the target display panel in the un-aging stage and after each aging stage according to the brightness of the target display panel in the un-aging stage and after each aging stage includes: determining the voltage drop compensation values ​​of the multiple display areas of the target display panel in the un-aging stage and after each aging stage according to the brightness of the multiple display areas of the target display panel in the un-aging stage and after each aging stage, so as to perform voltage drop compensation on the multiple display areas of the target display panel in the un-aging stage and after each aging stage, respectively.

[0044] For example, the brightness of the first display area (such as Pb1) of the target display panel after each aging stage can be determined according to the brightness of the first display area (such as Pb1) of the target display panel in the unaging stage, the brightness of the first display area (such as Pa1) of the reference display panel in the unaging stage, and the brightness of the first display area (such as Pa1) of the reference display panel after each aging stage. The voltage drop compensation value of the first display area (such as Pb1) of the target display panel in the unaging stage and after each aging stage can be determined according to the brightness of the first display area (such as Pb1) of the target display panel in the unaging stage and after each aging stage, so as to perform voltage drop compensation on the first display area (such as Pb1) of the target display panel in the unaging stage and after each aging stage according to the voltage drop compensation value of the first display area (such as Pb1) of the target display panel in the unaging stage and after each aging stage.

[0045] In some embodiments of the present invention, determining the voltage drop compensation value of the target display panel in the un-aging stage and after each aging stage according to the brightness of the target display panel in the un-aging stage and after each aging stage includes: determining the voltage drop compensation value of the target display panel in the un-aging stage or after the aging stage according to the brightness of the target display panel in the un-aging stage or after any aging stage and a reference brightness, wherein the reference brightness includes an average value of the brightness of multiple display areas of the target display panel after the aging stage or the brightness of the middle display area of ​​the target display panel after the aging stage.

[0046] In some embodiments, the voltage drop compensation value is calculated according to the target gamma curve of the target display panel. Figure 5 As shown, Figure 5 A schematic diagram of a target gamma curve disclosed in an embodiment of the present invention, Gray' = j*(L b ' / L b ) G According to the calculation principle of voltage drop compensation value, offset b =j-Gray'. From this we can see that offset b =jj*(L b ' / L b ) G , where offset b represents the voltage drop compensation value of the target display panel in the un-aging stage or after the aging stage at the jth grayscale, L b represents the brightness of the target display panel in the jth grayscale before or after aging. b ' represents the reference brightness of the target display panel at the jth grayscale, and G represents the target gamma value of the target gamma curve of the target display panel. It can be understood that the target gamma curve is a gamma curve for gamma correction of the target display panel before the target display panel leaves the factory.

[0047] Based on this, according to the brightness of the target display panel in the un-aging stage or after any aging stage and the reference brightness, determining the voltage drop compensation value of the target display panel in the un-aging stage or after the aging stage includes: substituting the brightness of the target display panel in the un-aging stage or after any aging stage and the reference brightness into the following formula: b =jj*(L b ' / L b ) G , determine the voltage drop compensation value of the target display panel in the un-aging stage or after the corresponding aging stage.

[0048] Taking j equal to 255 and G equal to 2.2 as an example, the voltage drop compensation value offset of the target display panel in the un-aging stage or the corresponding aging stage at the 255th gray scale isb =255-255*(L b ' / L b ) 2 . 2 , where L b Indicates the brightness of the target display panel at the 255th grayscale in the unaged stage or after the corresponding aged stage, L b ' represents the reference brightness of the target display panel at the 255th gray scale, L b ' may be equal to the average brightness of multiple display areas of the target display panel after the corresponding aging stage at the 255th grayscale, or may be equal to the brightness of the middle display area (such as Pb3) of the target display panel after the corresponding aging stage at the 255th grayscale.

[0049] In some embodiments of the present invention, the voltage drop compensation value is a voltage drop compensation value at any gray scale, such as a voltage drop compensation value at gray scale 255. The voltage drop compensation method further includes: determining the voltage drop compensation value of the target display panel after each aging stage at other gray scales according to the voltage drop compensation value of the target display panel after each aging stage at at least one gray scale, so as to perform voltage drop compensation on the target display panel after each aging stage at each gray scale respectively.

[0050] The voltage drop compensation values ​​of the target display panel after each aging stage at at least one gray scale may be interpolated to obtain the voltage drop compensation values ​​of the target display panel after each aging stage at other gray scales.

[0051] In some embodiments, according to the voltage drop compensation value of the target display panel after each aging stage at at least one gray scale, determining the voltage drop compensation value of the target display panel after each aging stage at other gray scales includes: substituting the voltage drop compensation value of the target display panel after any aging stage at one gray scale into the following formula: bx =offset by *(x / y), determine the voltage drop compensation value of the target display panel after the aging stage at any other gray scale;

[0052] Of course, the present invention is not limited to this. In other embodiments, according to the voltage drop compensation value of the target display panel after each aging stage at at least one gray scale, determining the voltage drop compensation value of the target display panel after each aging stage at other gray scales includes: substituting the voltage drop compensation value of the target display panel after any aging stage at two gray scales into the following formula: bx =offset by +(offset bz -offset by)*(xy) / (zy), determine the voltage drop compensation value of the target display panel after the aging stage at any other grayscale; where, offset bx Indicates the voltage drop compensation value of the target display panel after the aging stage at any other grayscale, offset by Indicates the voltage drop compensation value of the target display panel after any aging stage at a grayscale, offset bz represents the voltage drop compensation value of the target display panel after any aging stage at another gray scale, x represents any other gray scale, y represents one gray scale, and z represents another gray scale.

[0053] For example, the voltage drop compensation value of any display area of ​​the target display panel at gray scale 255 is offset b255 Substitute into the formula offset b128 =offset b255 *(128 / 255), calculate the voltage drop compensation value offset of the same display area of ​​the target display panel at 128 grayscale b128 . Set the voltage drop compensation value of any display area of ​​the target display panel at 255 grayscale to offset b255 And the voltage drop compensation value offset at 128 grayscale b128 Substitute into the formula offset b192 =offset b128 +(offset b255 -offset b128 )*(192-128) / (255-128), calculate the voltage drop compensation value offset of the same display area of ​​the target display panel at 192 grayscale b192 .

[0054] As another optional implementation of the contents disclosed in the present invention, an embodiment of the present invention provides a computer device, which may be a chip or a server, etc. The computer device includes: a memory for storing at least one set of instructions; a processor for executing the at least one set of instructions to execute the voltage drop compensation method provided in any of the above embodiments.

[0055] As another optional implementation of the contents disclosed in the present invention, an embodiment of the present invention provides a storage medium, which includes a computer-readable storage medium, and the storage medium stores at least one set of instructions, and the at least one set of instructions is used to enable a processor to execute the voltage drop compensation method provided in any of the above embodiments.

[0056] The computer-readable storage media of the embodiments of the present invention include permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. The information can be host-readable instructions, data structures, modules of programs, or other data. Examples of host storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0057] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above embodiments only express several implementation methods of this specification, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of this specification, which all belong to the protection scope of this specification. Therefore, the protection scope of the patent of this specification shall be based on the attached claims.

Claims

1. A voltage drop compensation method, characterized in that: include: Obtain the brightness of the target display panel in the non-aging stage; Determining a proportional relationship between the brightness of the target display panel and the brightness of the reference display panel according to the brightness of the target display panel in the non-aging stage and the brightness of the reference display panel in the non-aging stage; Substitute the proportional relationship and the brightness of the reference display panel after any aging stage into the following formula L bn =L an *(L b0 / L a0 ), determine the brightness of the target display panel after the aging stage; wherein, L b0 / L a0 Indicates the proportional relationship, L b0 represents the brightness of the target display panel in the unaged stage, L a0 represents the brightness of the reference display panel in the unaged stage, L bn represents the brightness of the target display panel after the aging stage, L an represents the brightness of the reference display panel after the aging stage; According to the brightness of the target display panel in the unaged stage and after each aging stage, the voltage drop compensation value of the target display panel in the unaged stage and after each aging stage is determined to perform voltage drop compensation on the target display panel in the unaged stage and after each aging stage respectively.

2. The voltage drop compensation method according to claim 1, characterized in that: The target display panel and the reference display panel both include multiple display areas, and determining the brightness of the target display panel after each aging stage according to the brightness of the target display panel in the un-aging stage, the brightness of the reference display panel corresponding to the target display panel in the un-aging stage, and the brightness of the reference display panel after each aging stage includes: Determine the brightness of the multiple display areas of the target display panel after each aging stage according to the brightness of the multiple display areas of the target display panel in the unaging stage, the brightness of the multiple display areas of the reference display panel in the unaging stage, and the brightness of the multiple display areas of the reference display panel after each aging stage; The step of determining the voltage drop compensation value of the target display panel in the un-aging stage and after each aging stage according to the brightness of the target display panel in the un-aging stage and after each aging stage includes: determining the voltage drop compensation values ​​of the multiple display areas of the target display panel in the un-aging stage and after each aging stage according to the brightness of the multiple display areas of the target display panel in the un-aging stage and after each aging stage, so as to perform voltage drop compensation on the multiple display areas of the target display panel in the un-aging stage and after each aging stage, respectively.

3. The voltage drop compensation method according to claim 1, characterized in that: The step of determining the voltage drop compensation value of the target display panel in the un-aging stage and after each aging stage according to the brightness of the target display panel in the un-aging stage and after each aging stage comprises: The voltage drop compensation value of the target display panel in the un-aging stage or after the aging stage is determined according to the brightness of the target display panel in the un-aging stage or after any aging stage and the reference brightness, wherein the reference brightness includes the average brightness of multiple display areas of the target display panel after the aging stage or the brightness of the middle display area of ​​the target display panel after the aging stage.

4. The voltage drop compensation method according to claim 3, characterized in that: The step of determining the voltage drop compensation value of the target display panel in the un-aging stage or after any aging stage according to the brightness of the target display panel in the un-aging stage or after any aging stage and the reference brightness comprises: Substitute the brightness of the target display panel before aging or after any aging stage and the reference brightness into the following formula: b =jj*(L b ' / L b ) G , determine the voltage drop compensation value of the target display panel in the un-aging stage or after the aging stage; wherein, offset b represents the voltage drop compensation value of the target display panel at the jth grayscale in the un-aging stage or after the aging stage, L b represents the brightness of the target display panel at the jth grayscale in the un-aging stage or after the aging stage, L b ' represents the reference brightness of the target display panel at the jth grayscale, and G represents the target gamma value of the target display panel.

5. The voltage drop compensation method according to claim 1, characterized in that: The voltage drop compensation value is a voltage drop compensation value at any gray scale, and further includes: According to the voltage drop compensation value of the target display panel after each aging stage at at least one gray scale, the voltage drop compensation value of the target display panel after each aging stage at other gray scales is determined, so as to perform voltage drop compensation on the target display panel after each aging stage at each gray scale respectively.

6. The voltage drop compensation method according to claim 5, characterized in that: Determining the voltage drop compensation value of the target display panel after each aging stage at other gray scales according to the voltage drop compensation value of the target display panel after each aging stage at at least one gray scale comprises: Substitute the voltage drop compensation value of the target display panel after any aging stage at a gray scale into the following formula: bx =offset by *(x / y), determining the voltage drop compensation value of the target display panel after the aging stage at any other gray scale; Alternatively, the voltage drop compensation value of the target display panel after any aging stage under two grayscales is substituted into the following formula: bx =offset by +(offset bz -offset by )*(xy) / (zy), determining the voltage drop compensation value of the target display panel after the aging stage at any other gray scale; Among them, offset bx represents the voltage drop compensation value of the target display panel after the aging stage at any other grayscale, offset by represents the voltage drop compensation value of the target display panel after any aging stage at a grayscale, offset bz represents the voltage drop compensation value of the target display panel after any aging stage at another gray scale, x represents any other gray scale, y represents one gray scale, and z represents another gray scale.

7. A computer device, characterized in that: include: A memory for storing at least one set of instructions; A processor, configured to execute the at least one set of instructions to execute the voltage drop compensation method according to any one of claims 1 to 6.

8. A storage medium, characterized in that: The storage medium stores at least one set of instructions, and the at least one set of instructions is used to enable a processor to execute the voltage drop compensation method according to any one of claims 1 to 6.

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