WO2024007747A1

WO2024007747A1 - Brightness compensation method and apparatus, electronic device, and storage medium

Info

Publication number: WO2024007747A1
Application number: PCT/CN2023/095091
Authority: WO
Inventors: 吴安平; 王硕晟
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-07-06
Filing date: 2023-05-18
Publication date: 2024-01-11
Also published as: CN115116390A

Abstract

A brightness compensation method and apparatus (400), an electronic device (100), and a storage medium (800). The brightness compensation method is used for the electronic device (100), and the method comprises: on the basis of a brightness measurement module (140), measuring brightness values when a first display area (131) and a second display area (132) display the same content under at least one backlight level (S110); on the basis of the brightness values, which are measured for the first display area (131) and the second display area (132), adjusting a display parameter for the first display area (131) or the second display area (132) to display the content under the backlight level until the brightness values, which are measured by means of the brightness measurement module (140) when the first display area (131) and the second display area (132) display the same content under the backlight level, match each other (S120); and updating a brightness compensation parameter of a screen (130) on the basis of the adjusted display parameter (S130). The brightness compensation method can sufficiently compensate for the brightness of a screen (130) according to the aging of the screen (130).

Description

Brightness compensation method, device, electronic equipment and storage medium

Cross-references to related applications

This application claims priority from Chinese application No. 202210799370.0 filed on July 6, 2022, the entire content of which is hereby incorporated by reference for all purposes.

Technical field

The present application relates to the field of display technology, and more specifically, to a brightness compensation method, device, electronic equipment and storage medium.

Background technique

Electronic devices, such as mobile phones, tablets, etc., have become one of the most commonly used consumer electronic products in people's daily lives. The display screen is the part of the electronic device used to display the user interface. With the rapid advancement of display technology, the semiconductor element technology as the core of the display device has also made rapid progress. Therefore, organic light-emitting devices with better display effects have emerged. Diode (Organic Light Emitting Diode, OLED) screen. However, during use of the OLED screen, the pixels will age, causing the display effect of the screen to be affected.

Contents of the invention

This application proposes a brightness compensation method, device, electronic equipment and storage medium, which can better compensate for the brightness of the screen.

In a first aspect, embodiments of the present application provide a brightness compensation method applied to an electronic device. The electronic device includes a screen and a brightness detection module for detecting the display brightness of the screen. The screen includes a first display area. and a second display area, the first display area and the second display area are selectively displayed simultaneously or non-simultaneously, and the method includes: detecting the first display area based on the brightness detection module; The brightness value of the second display area when displaying the same content under at least one backlight level; based on the brightness values detected for the first display area and the second display area, the first display area or the The display parameters of the content displayed in the second display area under the backlight level are adjusted until the first display area and the second display area detected by the brightness detection module display the same content under the backlight level. The brightness value at the time matches; based on the adjusted display parameters, the brightness compensation parameters of the screen are updated.

In a second aspect, embodiments of the present application provide a brightness compensation device for use in electronic equipment. The electronic equipment includes a screen and a brightness detection module for detecting the display brightness of the screen. The screen includes a first display area. and a second display area. The first display area and the second display area are selectively displayed simultaneously or non-simultaneously. The device includes: a brightness detection module, a display adjustment module and a parameter update module, wherein, The brightness detection module is used to detect the brightness value of the first display area and the second display area when the same content is displayed under at least one backlight level based on the brightness detection module; the display adjustment module is used to detect the brightness value based on the brightness detection module. The brightness values detected in the first display area and the second display area are used to adjust the display parameters of the content displayed in the first display area or the second display area under the backlight level until the The brightness values of the first display area and the second display area detected by the brightness detection module match when displaying the same content under the backlight level; the parameter update module is used to update the adjusted display parameters based on the adjusted display parameters. The brightness compensation parameters of the above screen are updated.

In a third aspect, embodiments of the present application provide an electronic device, including: one or more processors; a memory; and one or more application programs, wherein the one or more application programs are stored in the memory and Configured to be executed by the one or more processors, the one or more application programs are configured to execute the brightness compensation method provided by the above-mentioned first aspect.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium. Program code is stored in the computer-readable storage medium. The program code can be called by a processor to execute the brightness provided in the first aspect. Compensation methods.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

FIG. 1 shows a schematic structural diagram of an electronic device provided by an embodiment of the present application.

FIG. 2 shows another schematic structural diagram of an electronic device provided by an embodiment of the present application.

FIG. 3 shows another structural schematic diagram of an electronic device provided by an embodiment of the present application.

FIG. 4 shows yet another schematic structural diagram of an electronic device provided by an embodiment of the present application.

Figure 5 shows a flow chart of a brightness compensation method according to an embodiment of the present application.

Figure 6 shows a flow chart of a brightness compensation method according to another embodiment of the present application.

Figure 7 shows a flow chart of a brightness compensation method according to yet another embodiment of the present application.

Figure 8 shows a flow chart of a brightness compensation method according to yet another embodiment of the present application.

Figure 9 shows a flow chart of a brightness compensation method according to yet another embodiment of the present application.

Figure 10 shows a block diagram of a brightness compensation device according to an embodiment of the present application.

FIG. 11 is a block diagram of an electronic device used to perform a brightness compensation method according to an embodiment of the present application.

Figure 12 is a storage unit used to save or carry the program code for implementing the brightness compensation method according to the embodiment of the present application.

Detailed ways

In order to enable those in the technical field to better understand the solution of the present application, the technical solution in the embodiment of the present application will be clearly and completely described below in conjunction with the drawings in the embodiment of the present application.

Currently, more and more electronic devices use organic light emitting diode (OLED) screens based on the self-luminous principle. OLED display technology is different from traditional LCD display methods. It does not require a backlight and uses very thin organic material coatings and glass substrates (or flexible organic substrates). When current passes through, these organic materials will emit light. The principle of OLED screens and light bulbs is the same. The filament becomes thinner and black after being turned on for a long time. When current stimulates the organic materials of OLED screens to emit light, it will also cause the organic materials to age. The result of aging is that under the same driving current, the brightness produced by the luminescent materials is low. In the original state before aging, and the larger the current, the faster the luminescent material ages.

Moreover, in the daily use of the user, the displayed content has different colors (gray scales) and brightness. These are reflected on the bottom layer of the hardware and are controlled by the size of the current. The greater the current, the brighter the screen; the smaller the current, the smaller the screen. The darker. So on the same screen, with long-term use, the brightness accumulation of the display content in different areas is different. For example, if the same application is used frequently, the average brightness of some areas will be higher than that of other parts. In this way, the screen area with high cumulative brightness will have a large average current and the faster the luminescent material will age. Because the screen display content is converted from the Rawdata (original data) transmitted by the whole machine. When the screen is displayed uniformly, the Rawdata of each pixel area is consistent. The final effect is that the brightness ratio of the area with rapid aging is when the uniform screen is displayed. Other areas are low; if the aging degree of the luminescent materials between areas is sufficiently different, brightness differences will also occur in some uneven images. This situation is called screen burn-in.

In related technologies, the display content compensation method is usually used to target the aging of the luminescent material of the OLED screen, that is, the aging curve of the luminescent material (the relationship between the degree of aging and time) is known, and the display content of different areas of the screen is collected in real time to accumulate the brightness value. To substitute the aging curve, we can get the aging degree (attenuation percentage) in different areas. When the screen displays different brightnesses, a certain brightness compensation is given to the content in the area so that the brightness is the same as before attenuation; or the brightness of the surrounding displayed content is lowered to be consistent with the attenuation. In this method, the overall compensation effect is to reduce the residual images caused by aging differences. This method is usually called Deburnin technology.

Since Deburnin technology is a very refined technical measure, it is necessary to obtain an accurate aging model (luminescent material aging curve), and the luminescent material aging curve will change with different screen batches. The above-mentioned technology can be used to display content on the screen. In a relatively uniform situation, the difference is not big and small and fine adjustments can be made. Even if the compensation is over- or under-compensated, it will not affect the display effect. However, for many new screen forms, such as folding, scrolling, etc., the display content and time of the hidden and expanded screen parts are very different. For example, the areas that are often hidden on the sliding screen are not displayed. In this way, the pixel light-emitting materials in the two parts age at different speeds. After long-term use, the brightness of the two parts of the area will be different. If this type of screen is still compensated through Deburnin, its compensation capability may not be enough to support large-scale and large-scale adjustments, and it is prone to partial over-compensation and under-compensation; and Deburnin technology needs to continuously store the aging data in the process, so it is not suitable for The storage space of the panel display driver chip (Display Driver Integrated Circuit, DDIC) puts forward great demands. Once the storage space of the DDIC is full, the brightness compensation capability reaches the limit.

In response to the above problems, the inventor proposed the brightness compensation method, device, electronic device and storage medium provided by the embodiments of the present application, which can achieve at least one backlight level according to the first display area or the second display area detected by the brightness detection module. The brightness when displaying the content is determined to determine the brightness compensation parameters, and then the brightness compensation can be carried out in a targeted manner according to the brightness compensation parameters for the first display area and the second display area that have a large difference in the above-mentioned display content and display duration, so as to improve the first display The brightness difference between the display area and the second display area improves the display effect of the screen. The specific brightness compensation method will be described in detail in subsequent embodiments.

The following first introduces the electronic equipment involved in the brightness compensation method provided by the embodiment of the present application.

As shown in Figure 1, Figure 1 shows a push-pull electronic device 100. The electronic device 100 includes a screen 130 and a screen for detecting The brightness detection module 140 measures the display brightness of the screen. The screen 130 includes a first display area 131 and a second display area 132. The second display area 132 is selectively hidden or expanded relative to the first display area 131. Therefore, the first display area 131 and the second display area 132 are separated from each other. The display area 132 selectively performs simultaneous display or non-simultaneous display. As shown in Figure 1, when the screen 130 is expanded, the second display area 132 is expanded relative to the first display area 131. At this time, the first display area 131 and the second display area 132 are displayed at the same time; as shown in Figure 2 , when the screen 130 is retracted, the second display area 132 is hidden relative to the first display area 131. At this time, the first display area 131 and the second display area 132 are not displayed simultaneously. The screen 130 may be a flexible display screen, and the brightness detection module 130 may be a brightness sensor or the like.

In some embodiments, a brightness detection module 130 may be provided below the first display area 131 and below the second display area 132 , whereby the brightness detection module 130 may be used to detect the display when the first display area 131 displays content. brightness and the display brightness when the second display area 132 displays content.

Of course, the brightness compensation method provided by the embodiment of the present application can also be applied to foldable electronic devices. Please refer to Figure 3. When the screen 130 is unfolded, the second display area is selectively expanded relative to the first display area 131. This When the screen 130 is folded, the first display area 131 and the second display area 132 are displayed simultaneously; please refer to FIG. 4 , when the screen 130 is folded, the second display area 132 is selectively folded relative to the first display area 131. At this time, the The first display area 131 and the second display area 132 are not displayed simultaneously.

The brightness compensation method provided by the embodiment of the present application will be introduced in detail below with reference to the accompanying drawings.

Please refer to FIG. 5 , which shows a schematic flowchart of a brightness compensation method provided by an embodiment of the present application. In a specific embodiment, the brightness compensation method is applied to the above-mentioned electronic device. The electronic device includes a screen and a brightness detection module for detecting the display brightness of the screen. The screen includes a first display area and a second display area, The first display area and the second display area are selectively displayed simultaneously or non-simultaneously. The process shown in Figure 5 will be described in detail below. The brightness compensation method may specifically include the following steps:

Step S110: Detect the brightness value of the first display area and the second display area when the same content is displayed under at least one backlight level based on the brightness detection module.

When both the first display area and the second display area are in the display state, at this time, the brightness values when the first display area and the second display area display the same content can be detected, so as to display the screen according to the detection results. The display parameters of the content are adjusted to obtain the brightness compensation parameters. Wherein, the electronic device can use a brightness detection module corresponding to the first display area and a brightness detection module corresponding to the second display area to respectively detect when the first display area and the second display area display the same content under at least one backlight level. brightness value.

In the embodiment of this application, the backlight level refers to the physical backlight level supported by the screen. The backlight level of the screen usually includes multiple levels, for example, levels 0 to 2047 (a total of 2048 backlight levels), levels 0 to 4095 (a total of 4096 backlight levels). backlight level), wherein the backlight brightness increases as the backlight level increases. For example, the brightness at the 200th backlight level is greater than the brightness at the 100th backlight level. Detecting the brightness value when the first display area and the second display area display the same content under at least one backlight level may be detecting the brightness value when the same content is displayed under some backlight levels among the physical backlight levels supported by the screen, that is, for For each backlight level in partial backlight levels, detect the brightness value of the first display area and the second display area when displaying the same content at the same backlight level; it can also detect all backlight levels among the physical backlight levels supported by the screen. The brightness value when the same content is displayed, that is, for each backlight level among all backlight levels, the brightness value of the first display area and the second display area when the same content is displayed at the same backlight level is detected. It can be understood that if the brightness values of the first display area and the second display area when displaying the same content under the same backlight level are detected for part of the backlight level, then the brightness of the part of the backlight level when the content is displayed can be compensated through subsequent steps. The parameters are updated; if the brightness values of the first display area and the second display area when the same content is displayed under the same backlight level are detected for all backlight levels, the brightness compensation parameters when the content is displayed under all backlight levels can be calculated through subsequent steps. Make an update.

In some embodiments, the electronic device may control the screen to display the test image under at least one backlight level, and when the test image is displayed under each backlight level in the at least one backlight level, the first display area and the first display area are detected based on the brightness detection module. The display brightness of the two display areas, and then obtain the brightness value of the first display area and the second display area when displaying the same content under each backlight level, so that according to the first display area and the second display area under each of the above backlight levels The brightness value when the same content is displayed, determines whether the two brightness values match, and then determines whether to adjust the display parameters, and determines the brightness compensation parameters when displaying content under each of the above backlight levels. The test image may be an image with the same content in each area, for example, it may be a solid color image.

In a possible implementation, when the electronic device controls the screen to display the test image at each backlight level of at least one backlight level, the electronic device can control the screen to display multiple grayscale images at each of the above backlight levels, as follows: Therefore, the brightness values of the first display area and the second display area when displaying multiple grayscale content at each of the above backlight levels can be detected based on the brightness detection module, so that multiple grayscales can be displayed according to each of the above backlight levels. The brightness value detected when the content is displayed determines the brightness compensation parameters when the screen displays content of each gray level under each of the above backlight levels.

In this embodiment of the present application, the electronic device can detect the screen status, and perform the brightness compensation method provided by the embodiment of this application when the first display area and the second display area display content at the same time. For example, when the screen is a folding or pull-out screen, when the second display area is folded or hidden relative to the first display area, the first display area is in a display and use state. In this state, the user can view the second display area. One display area to operate. Of course, the second display area can also be expanded relative to the first display area, so that the first display area and the second display area can form an entire flat display area, presenting a larger display area. The user can fold or hide the second display area of the screen relative to the first display area according to actual needs. For example, in a pull-out electronic device, the second display area is stored in the casing, or the second display area of the screen is folded or hidden. The display area is expanded relative to the first display area. For example, in a pull-out electronic device, the second display area is pulled out from the housing and expanded relative to the first display area.

The electronic device can detect the expanded state of the screen, that is, detect whether the second display area is expanded relative to the first display area. In some embodiments, the electronic device can detect the angle between the first display area and the second display area to determine whether the second display area is in a state of expansion relative to the first display area; after detecting that the first display area is After detecting the angle between the area and the second display area, it can be determined based on the above detected angle whether the second display area is in a state of being expanded relative to the first display area. Wherein, when the angle between the first display area and the second display area is less than the set value, it can be determined that the second display area is hidden relative to the first display area; it can be between the first display area and the second display area. When the angle is greater than or equal to the set value, it is determined that the second display area is expanded relative to the first display area. The above setting value may be an angle value when the first display area and the second display area are nearly parallel. For example, the setting value may be 0, 3, 5, etc.

As a method, the electronic device can use the above-mentioned angle detection module to detect the angle between the first display area and the second display area. As another way, the electronic device can detect the repulsive force between the magnets disposed in the first display area and the magnet disposed in the second display area, so that the electronic device can detect the repulsive force between the magnets between the first display area and the second display area. , determine the angle between the first display area and the second display area. It can be understood that the closer the magnet provided to the first display area and the magnet provided to the second display area are, the electronic device detects The greater the repulsive force between the magnets and the closer the magnets are to each other, the smaller the angle between the first display area and the second display area. When the first display area and the second display area are relatively unfolded, the above-mentioned The magnets are the farthest apart, so the angle between the first display area and the second display area can be determined based on the above-mentioned detected repulsive force, and whether the second display area is expanded relative to the first display area can be determined. Of course, the specific method of detecting the angle between the first display area and the second display area may not be limited in the embodiments of the present application.

Step S120: Based on the brightness values detected for the first display area and the second display area, perform display parameters for displaying content in the first display area or the second display area under the backlight level. Adjust until the brightness values of the first display area and the second display area detected by the brightness detection module match when the same content is displayed under the backlight level.

In this embodiment of the present application, based on the above-detected brightness value, the electronic device can determine whether the display needs to be modified when the first display area and the second display area display the same content under each backlight level of at least one backlight level. The parameters are adjusted so that the brightness detected by the brightness detection module (that is, the actual display brightness) when the first display area and the second display area display content under the same backlight level match. Wherein, the brightness value of the first display area detected by the brightness detection module matches the brightness value of the second display area. The brightness value of the first display area and the brightness value of the second display area may be the same, or the brightness value of the first display area may be the same. The absolute value of the difference between the brightness value of the area and the brightness value of the second display area is less than the preset threshold. The specific value of the preset threshold can be that the user cannot feel the difference in brightness between the first display area and the second display area. threshold.

In some embodiments, the electronic device adjusts the display parameters of the content displayed in the first display area or the second display area at each of the above backlight levels based on the brightness values detected for the first display area and the second display area. , the detected brightness when the same content is displayed under each of the above backlight levels can be compared. If the brightness value of the first display area does not match the brightness value of the second display area when the same content is displayed under any backlight level, then it can be When the same content is displayed under the backlight level, the display parameters of the first display area or the second display area are adjusted so that the brightness values of the first display area and the second display area when the same content is displayed under the backlight level match. Thus, for each of the above backlight levels, it can be determined that when the first display area and the second display area display the same content, the brightness value of the first display area does not match the brightness value of the second display area, and for this In this case, the display parameters of the first display area or the second display area are adjusted to obtain the adjusted display parameters of the first display area or the second display area under the backlight level corresponding to the above-mentioned brightness value mismatch.

In some embodiments, when the brightness values of the first display area and the second display area when displaying the same content under any backlight level do not match, the display content of the display area that needs to be adjusted can be displayed at that backlight level. The grayscale or backlight level is adjusted so that the brightness values of the first display area and the second display area match when the same content is displayed under the backlight level. It can be understood that when the brightness values of the first display area and the second display area when displaying the same content under any backlight level do not match, the display parameters of the first display area or the second display area can be adjusted, so that the adjustment Display of display parameters The brightness value of the area can match the brightness value of another display area; and by adjusting the display gray scale or backlight level of the display content, the display brightness of the display area that needs to be adjusted can be changed, and then adjusted to match that of another display area. The brightness value of the area matches.

Wherein, adjusting the display grayscale of the display content means that when the first display area and the second display area display the same content, one of the first display area and the second display area displays the original display content. On the basis of the gray scale, adjust the gray scale value of the displayed content. For example, the original gray scale value of the displayed content is 255. If you need to reduce the brightness value of the display area that needs to be adjusted, you can reduce the display area of the display area. The content is displayed in grayscale until the detected brightness of the display area matches the brightness of another display area.

Adjusting the backlight level means that when the first display area and the second display area display the same content, one of the first display area and the second display area adjusts its backlight level based on the current backlight level. , for example, both the first display area and the second display area display the same content under the first backlight level. If it is necessary to reduce the brightness value of the display area that needs to be adjusted, the backlight level of the display area can be reduced until the detected The brightness of this display area matches the brightness of another display area.

Step S130: Update the brightness compensation parameters of the screen based on the adjusted display parameters.

In the embodiment of the present application, based on the brightness values of the first display area and the second display area when displaying the same content under at least one backlight level, the first display area or the second display area displays content under at least one backlight level. The display parameters are adjusted until the brightness values of the first display area and the second display area detected by the brightness detection module match when displaying the same content under each backlight level in at least one, then the first display area and the second display area can be obtained. 2. Adjusted display parameters when the display area displays content under each of the above backlight levels. Since the above adjustments to the display parameters can make the brightness values of the first display area and the second display area match when displaying the same content under each of the above backlight levels, the adjusted display parameters can be considered as the display area under the corresponding backlight. The display parameters that are required when displaying content under the level, and the display parameters can ensure that there will be no difference in brightness when the first display area and the second display area display the same content. Therefore, the screen can be adjusted at least according to the adjusted display parameters. A brightness compensation parameter is updated when displaying content under each backlight level, thereby obtaining an updated brightness compensation parameter.

In some embodiments, the electronic device can determine the display area (ie, the first display area or the second display area) that needs to be adjusted at each of the above backlight levels, and compare the adjusted display parameters at each of the above backlight levels with those before adjustment. Compare the display parameters to determine the display parameters that need to be adjusted. For example, the display grayscale before adjustment is 240 and the display grayscale after adjustment is 255. Then the display grayscale needs to be increased by 10. From this, each of the above backlights can be obtained The display area that needs to be adjusted and the display parameters that need to be adjusted under the level, and then the brightness compensation parameters under each of the above backlight levels are obtained, and the obtained brightness compensation parameters under each of the above backlight levels are used as the latest brightness compensation parameters, for the current The stored brightness compensation parameters are updated to obtain updated brightness compensation parameters. It should be noted that there may be no difference in brightness between the first display area and the second display area when the same content is displayed under some backlight levels. In the above step S120, the first display area and the second display area will not be modified under these backlight levels. The display parameters are adjusted when the area displays the same content, so there will be no brightness compensation parameter under these backlight levels, or the brightness compensation parameter is 0; and, since step S120 is to adjust the display parameters of the first display area or the second display area , under a backlight level with brightness compensation parameters, it may be that the first display area has brightness compensation parameters, or it may be that the second display area has brightness compensation parameters.

In some embodiments, after the electronic device obtains the updated brightness compensation parameters, it can use the current backlight level and the above-mentioned updated brightness when both the first display area and the second display area need to display content. The compensation parameter adjusts the display parameters of the first display area or the second display area, so that there will be no difference in brightness when the first display area and the second display area display the same content, thereby improving the display effect of the screen.

In some embodiments, the first display area and the second display area can also be divided into multiple sub-areas, and each sub-area in the first display area is provided with at least one brightness detection module. Each sub-region is provided with at least one brightness detection module; based on this, the brightness value when the same content is displayed under at least one backlight level can be detected for each sub-region, and based on the brightness value detected for each sub-region, at least part of the The display parameters of the sub-regions displaying content under each backlight level of at least one backlight level are adjusted until the brightness values of each detected sub-region when displaying the same content under each backlight level match, and then based on the adjusted display parameters, determine the brightness compensation parameters of the screen, and update the brightness compensation parameters of the screen. As a result, the brightness compensation of the screen can be realized more accurately, and the brightness difference when the same content is displayed in various areas of the screen can be improved.

In addition, in the embodiment of the present application, it can be understood that the electronic device can control the first display area and the second display area to display the same content under a backlight level, and then detect the first display area and the second display area through the brightness detection module. The brightness value of the area is adjusted, and based on the detected brightness value, the display parameters of the first display area or the second display area are adjusted to obtain the display area and the adjusted display parameters that need to be adjusted under the backlight level; and then the third display area is controlled. A display area and a second display The area displays the same content under another backlight level. The brightness detection module detects the brightness values of the first display area and the second display area, and based on the detected brightness values, the display parameters of the first display area or the second display area are adjusted. Adjust, and then obtain the display area that needs to be adjusted and the display parameters that need to be adjusted under the backlight level; repeat this until the display area that needs to be adjusted and the display parameters that need to be adjusted under each backlight level in at least one backlight level are determined, and then according to the determination The display area and display parameters that need to be adjusted under each backlight level are displayed, and the brightness compensation parameters are updated.

The brightness compensation method provided by the embodiments of the present application uses the actually detected brightness values of the first display area and the second display area when the same content is displayed under at least one backlight level to correct the display of the first display area or the second display area. The parameters are adjusted so that the brightness values of the first display area and the second display area match when displaying the same content under each backlight level of at least one backlight level, so that the brightness compensation parameters of the screen can be determined based on the adjusted display parameters. , and furthermore, brightness compensation can be performed on the first display area and the second display area where the above-mentioned display content and display duration are significantly different according to the brightness compensation parameter, so as to improve the brightness difference between the first display area and the second display area when displaying content. , improve the display effect of the screen; and because there is no need to store aging data of pixels, it can save DDIC storage space.

Please refer to FIG. 6 , which shows a schematic flowchart of a brightness compensation method provided by another embodiment of the present application. This brightness compensation method is applied to the above-mentioned electronic device. The electronic device includes a screen and a brightness detection module for detecting the display brightness of the screen. The screen includes a first display area and a second display area. The first display area The area and the second display area are selectively displayed simultaneously or non-simultaneously. The process shown in Figure 6 will be described in detail below. The brightness compensation method may specifically include the following steps:

Step S210: Detect the brightness values of the first display area and the second display area when displaying multiple grayscale content under at least one backlight level based on the brightness detection module.

In the embodiment of the present application, the electronic device may control the screen to display multiple grayscale images in each backlight level of at least one backlight level when detecting that the second display area is expanded relative to the first display area, Therefore, the brightness values of the first display area and the second display area when displaying multiple grayscale contents at each of the above backlight levels can be detected based on the brightness detection module. That is to say, the first display area and the second display area are controlled multiple times to display the same grayscale test image under each backlight level, and the grayscale of the test image displayed each time is different, so that the brightness detection module can detect The brightness values of the first display area and the second display area each time the content of the same gray level is displayed under each of the above backlight levels are obtained, and the brightness values detected when multiple gray levels of content are displayed under each of the above backlight levels are obtained, thus Subsequently, the brightness compensation parameters when the screen displays content of each gray scale under each of the above backlight levels can be determined based on the brightness values detected when displaying content of multiple gray scales at each of the above backlight levels.

Step S220: Determine a target gray level and a target backlight level based on the brightness values of the first display area and the second display area when displaying content of multiple gray levels under the backlight level, wherein the first The brightness values of the display area and the second display area when displaying the target grayscale content under the target backlight level do not match.

In this embodiment of the present application, the electronic device can determine the first display area based on the detected brightness values of the first display area and the second display area when displaying multiple grayscale content under each of the above backlight levels. The brightness values of the display area and the second display area do not match, that is, when the same content is displayed at which gray levels under which backlight levels, the brightness values of the first display area and the second display area do not match, resulting in the need to adjust the display parameters. The backlight level and gray scale are obtained, and then the target gray scale and target backlight level are obtained.

In some embodiments, the electronic device can obtain a first brightness curve in which the brightness changes with the backlight level when the first display area displays multiple grayscale content, and obtain multiple first brightness curves of the first display area, Multiple first brightness curves correspond to multiple gray levels one-to-one; obtain a second brightness curve in which the brightness changes with the backlight level when the second display area displays content of multiple gray levels, and obtain multiple second brightness curves, and the plurality of second brightness curves correspond to multiple gray levels one-to-one; compare the first brightness curve corresponding to each gray level and the second brightness curve to obtain the corresponding According to the curve comparison result corresponding to each gray level, the target gray level and the target backlight level are determined.

In this embodiment, the electronic device can determine multiple brightness curves in which the brightness value changes with the backlight level based on the brightness values of the first display area when displaying multiple grayscale content under different backlight levels, and each brightness curve Corresponds to one gray level among multiple gray levels; similarly, for the second display area, multiple brightness curves can be obtained. Then, for the first brightness curve and the second brightness curve corresponding to the same gray scale, compare the brightness values under each backlight level in the first brightness curve and the second brightness curve. If the brightness values under any backlight level do not match , then the same gray level is used as the target gray level, and the backlight level is used as the target backlight level, that is to say, the brightness of the first display area and the second display area when displaying the same target gray level content under the target backlight level Values do not match.

In other embodiments, it is also possible to obtain a third brightness curve in which the brightness changes with gray levels when the first display area displays multiple gray levels of content under each of the above backlight levels, to obtain multiple third brightness curves, and multiple third brightness curves. The third brightness curve corresponds to multiple backlight levels one-to-one; similarly, it can be obtained that the brightness of the second display area changes with the gray level when displaying multiple grayscale content under each backlight level. The fourth brightness curve of step changes is obtained to obtain multiple fourth brightness curves, and the multiple fourth brightness curves correspond to multiple backlight levels one-to-one; then the third brightness curve and the fourth brightness curve corresponding to each backlight level are processed For comparison, if the brightness values corresponding to any gray level do not match, then the gray level is used as the target gray level, and the backlight level is used as the target backlight level. That is to say, the first display area and the second display area are at the target backlight level. The brightness values do not match when displaying content with the same target grayscale.

Step S230: Adjust the display parameters of the first display area or the second display area when displaying the target grayscale content under the target backlight level until the brightness detection module detects the The brightness values of the first display area and the second display area match when displaying the target grayscale content under the target backlight level.

In the embodiment of the present application, after the electronic device determines the target backlight level and the target grayscale, the electronic device can perform display parameters for the first display area or the second display area when displaying the target grayscale content under the target backlight level. Adjust so that the brightness values of the first display area and the second display area detected by the brightness detection module match when the target grayscale content is displayed under the target backlight level, so that when the display parameters need to be adjusted, the need to adjust is obtained. Display area adjusted display parameters.

In some embodiments, when the electronic device adjusts the display parameters of the first display area or the second display area when displaying the target grayscale content under the target backlight level, it can be determined from the first display area or the second display area. Select the display area that needs to be adjusted as the target display area. Wherein, the first brightness attenuation ratio of the first display area may be determined based on the detected first brightness value of the first display area when displaying the target grayscale content under the target backlight level; based on The detected second brightness value of the second display area when displaying the target grayscale content under the target backlight level is determined to determine a second brightness attenuation ratio of the second display area; based on the first The brightness attenuation ratio and the second brightness attenuation ratio determine the display area to be adjusted in the first display area or the second display area as the target display area; for the target display area under the target backlight level The display parameters when displaying the content of the target grayscale are adjusted until the first display area and the second display area detected by the brightness detection module display the target grayscale under the target backlight level. The brightness value of the content matches.

In this implementation, the electronic device can determine the brightness attenuation ratio of the first display area and the second display area when displaying target grayscale content under the target backlight level, and determine the display area to be adjusted based on the brightness attenuation ratio. Among them, it can be understood that when the degree of aging of the light-emitting pixels in the first display area and the second display area is relatively large, the brightness attenuation ratio when displaying the target grayscale content under the target backlight level is also greater. If the brightness of the first display area or the second display area is reduced, the display effect will be affected; based on this, the first brightness attenuation ratio of the first display area and the second brightness attenuation ratio of the second display area can be determined Proportion, in order to determine the need to increase the display brightness of one of the display areas, or to reduce the display brightness of one of the display areas, and then determine the display area to be adjusted, thereby prompting the brightness compensation through the brightness compensation parameters Screen display effect.

In a possible implementation, the electronic device may store the initial brightness values of the first display area and the second display area when the content of each gray scale is displayed at each backlight level, which are detected when the electronic device leaves the factory. Since the initial brightness value is the brightness value detected when leaving the factory, the initial brightness value can be considered as the brightness value detected when the light-emitting pixels in the first display area and the second display area are not aged. Based on this, the electronic device is based on the first brightness value when the first display area displays the content of the target grayscale under the target backlight level, and the pre-stored first brightness value when the first display area displays the content of the target grayscale under the target backlight level. An initial brightness value can determine the first brightness attenuation ratio corresponding to the first display area. For example, the difference between the first initial brightness value and the first brightness value can be obtained, and the difference between the difference and the first initial brightness value can be obtained. Ratio, the first brightness attenuation ratio is obtained. In the same way, the electronic device is based on the second brightness value when the second display area displays the content of the target grayscale under the target backlight level, and the pre-stored second brightness value when the second display area displays the content of the target grayscale under the target backlight level. Using the two initial brightness values, the second brightness attenuation ratio corresponding to the second display area can be determined.

Step S240: Update the brightness compensation parameters of the screen based on the adjusted display parameters.

In the embodiment of this application, the contents of step S240 may be referred to other embodiments, and will not be described again here.

The brightness compensation method provided by the embodiment of the present application detects the brightness values of the first display area and the second display area when each backlight level displays multiple grayscales in at least one backlight level, and adjusts the first display area or the second display area. The display parameters of the area are adjusted so that the brightness values of the first display area and the second display area when displaying each of the multiple gray levels under each of the above backlight levels match, and the screen is determined based on the adjusted display parameters. The determined brightness compensation parameters can ensure that the brightness values of the first display area and the second display area can match when displaying any grayscale content under each backlight level, further improving the display effect of the screen. .

Please refer to FIG. 7 , which shows a schematic flow chart of a brightness compensation method provided by yet another embodiment of the present application. This brightness compensation method is applied to the above-mentioned electronic device. The electronic device includes a screen and a brightness detection module for detecting the display brightness of the screen. The screen includes a first display area and a second display area. The first display area The area and the second display area are selectively displayed simultaneously or non-simultaneously. The process shown in Figure 7 will be described in detail below. The brightness compensation method may specifically include the following steps:

Step S310: Detect the brightness values of the first display area and the second display area when displaying multiple grayscale content under at least one backlight level based on the brightness detection module.

Step S320: Determine a target gray level and a target backlight level based on the brightness values of the first display area and the second display area when displaying content of multiple gray levels under the backlight level, wherein the first The brightness values of the display area and the second display area when displaying the target grayscale content under the target backlight level do not match.

Step S330: Determine a first brightness attenuation ratio of the first display area based on the detected first brightness value of the first display area when displaying the target grayscale content under the target backlight level.

Step S340: Determine a second brightness attenuation ratio of the second display area based on the detected second brightness value of the second display area when displaying the target grayscale content under the target backlight level.

In this embodiment of the present application, for steps S310 to S340, reference may be made to the contents of the previous embodiments, and details will not be described again here.

Step S350: If both the first brightness attenuation ratio and the second brightness attenuation ratio are less than the preset attenuation ratio, obtain the minimum attenuation ratio among the first brightness attenuation ratio and the second brightness attenuation ratio, and The display area corresponding to the minimum attenuation ratio is used as the first target display area.

After the electronic device determines the first brightness attenuation ratio corresponding to the first display area and the second brightness attenuation ratio corresponding to the second display area, the first brightness attenuation ratio and the second brightness attenuation ratio can be compared with the preset attenuation ratio. Compare, so as to determine the display area to be adjusted from the first display area and the second display area according to the comparison result. The preset attenuation ratio can be determined in advance based on the brightness attenuation ratio that the user can perceive. For example, when the brightness attenuation ratio is less than 20%, the brightness attenuation that the user can perceive is not obvious, and when the brightness attenuation ratio is greater than or equal to 20% , the user can clearly perceive the brightness attenuation, so 20% can be used as the preset attenuation ratio.

In the embodiment of the present application, when both the first brightness attenuation ratio and the second brightness attenuation ratio are less than the preset attenuation ratio, it means that the user cannot clearly perceive the brightness attenuation of the screen in this case. Therefore, in this case, The display area corresponding to the smallest attenuation ratio among the first brightness attenuation ratio and the second brightness attenuation ratio can be determined as the display area to be adjusted and used as the first target display area. That is to say, in this case, The display brightness of a display area with relatively small attenuation is reduced so that its display brightness matches that of another display area.

Step S360: Adjust the display parameters of the first target display area when the target grayscale content is displayed under the target backlight level, so that the first target display area is displayed under the target backlight level. The brightness value of the target grayscale content decreases until the first display area and the second display area detected by the brightness detection module display the target grayscale content under the target backlight level. The brightness value of the content matches.

In this embodiment of the present application, since both the first brightness attenuation ratio and the second brightness attenuation ratio are smaller than the preset attenuation ratio, and the determined display area to be adjusted is the first target display area with a relatively small brightness attenuation ratio, therefore The display parameters of the first target display area when displaying the target grayscale content under the target backlight level can be adjusted, so that the brightness value of the first target display area when displaying the target grayscale content under the target backlight level is reduced, Until the brightness values of the first display area and the second display area detected by the brightness detection module match when displaying the content of the target grayscale under the target backlight level, it is obtained that the first target display area displays the target grayscale under the target backlight level. The content needs to be adjusted to the display parameters (that is, the adjusted display parameters), and when the first display area and another display area in the second display area display the target grayscale content under the target backlight level, there is no need to perform Adjustment.

Step S370: If both the first brightness attenuation ratio and the second brightness attenuation ratio are greater than or equal to the preset attenuation ratio, obtain the maximum attenuation ratio among the first brightness attenuation ratio and the second brightness attenuation ratio. , using the display area corresponding to the maximum attenuation ratio as the second target display area.

In the embodiment of the present application, when both the first brightness attenuation ratio and the second brightness attenuation ratio are greater than or equal to the preset attenuation ratio, it means that the user will obviously perceive the brightness attenuation of the screen in this situation. Therefore, in this situation, , the display area corresponding to the largest attenuation ratio among the first brightness attenuation ratio and the second brightness attenuation ratio can be determined as the display area to be adjusted. That is to say, in this case, if the display area of one of the display areas is further reduced, Brightness will make the user more obviously aware of the brightness attenuation. At this time, the display brightness of the display area with relatively large attenuation can be increased to match the display brightness of another display area.

Step S380: Adjust the display parameters when the second target display area displays the target grayscale content under the target backlight level, so that the second target display area displays under the target backlight level. The brightness value of the target grayscale content increases until the first display area and the second display area detected by the brightness detection module display the target grayscale content under the target backlight level. The brightness value of the content matches.

In the embodiment of the present application, since both the first brightness attenuation ratio and the second brightness attenuation ratio are greater than or equal to the preset attenuation ratio, and the determined display area to be adjusted is the second target display area with a relatively large brightness attenuation ratio. , therefore the display parameters of the second target display area when displaying the target grayscale content under the target backlight level can be adjusted, so that the first target The brightness value of the display area increases when the target grayscale content is displayed under the target backlight level, until the first display area and the second display area detected by the brightness detection module display the target grayscale content under the target backlight level. The brightness values match to obtain the display parameters that need to be adjusted when the second target display area displays the target grayscale content under the target backlight level (that is, the adjusted display parameters), and the first display area and the second display area When another display area displays the target grayscale content under the target backlight level, no adjustment is required.

Step S390: Update the brightness compensation parameters of the screen based on the adjusted display parameters.

In the embodiment of the present application, reference may be made to the content of the previous embodiment for step S390, which will not be described again here.

The brightness compensation method provided by the embodiment of the present application detects the brightness values of the first display area and the second display area displaying multiple grayscales under each backlight level of at least one backlight level. According to the first display area and the second display area, The display area displays multiple grayscale brightness values at each of the above backlight levels, determines the target backlight level and target grayscale, and determines the display area to be adjusted based on the brightness attenuation ratio of the first display area and the second display area. , and then adjust the display parameters of the display area to be adjusted when displaying the target grayscale content under the target backlight level, so that the brightness values of the first display area and the second display area when displaying the target grayscale content under the target backlight level are Matching, so that the brightness compensation parameters of the screen can be determined based on the adjusted display parameters, and the determined brightness compensation parameters can ensure that the first display area and the second display area display any grayscale content under each backlight level. The brightness values can be matched, further improving the display effect of the screen.

Please refer to FIG. 8 , which shows a schematic flow chart of a brightness compensation method provided by yet another embodiment of the present application. This brightness compensation method is applied to the above-mentioned electronic device. The electronic device includes a screen and a brightness detection module for detecting the display brightness of the screen. The screen includes a first display area and a second display area. The first display area The area and the second display area are selectively displayed simultaneously or non-simultaneously. The process shown in Figure 8 will be described in detail below. The brightness compensation method may specifically include the following steps:

Step S410: Detect ambient light brightness.

In the embodiment of the present application, the electronic device uses the brightness detection module to detect the actual brightness value when the first display area and the second display area display content, and adjusts the display parameters of the display area and updates the brightness compensation parameters accordingly. , because when the brightness detection module detects the brightness values of the first display area and the second display area, the ambient light may be detected by the brightness detection module through the screen. Therefore, in order to avoid the influence of ambient light, the ambient light brightness can be detected. Optionally, electronic devices are usually provided with a sensor for detecting ambient light brightness, and the electronic device can use the sensor to detect ambient light brightness.

In some embodiments, the electronic device detects the actual brightness values of the first display area and the second display area when displaying content through the brightness detection module, and updates the brightness compensation parameters by adjusting the display parameters of the display area accordingly, which can be When the update instruction of the brightness compensation parameter is detected, the brightness detection module starts to detect the actual brightness values when the first display area and the second display area display content. In the embodiment of the present application, when an update instruction of the brightness compensation parameter is detected, the ambient light brightness can be detected, and whether to perform subsequent steps is determined based on the ambient light brightness. The update instruction may be input by the user or generated when the electronic device meets preset conditions, which is not limited here.

Step S420: Determine whether the ambient light brightness is less than a preset brightness.

In this embodiment of the present application, after the electronic device detects the brightness of the ambient light, it can compare the brightness of the ambient light with the preset brightness. Based on the comparison result, it can be determined whether the brightness of the ambient light is less than the preset brightness. The preset brightness may be a brightness threshold of ambient light obtained through pre-testing that can have a greater impact on the display brightness of the screen detected by the brightness detection module. That is to say, when the brightness of the ambient light reaches the preset brightness, the ambient light Light will have a greater impact on the display brightness of the screen detected by the brightness detection module. On the contrary, when the ambient light brightness is less than the preset brightness, the ambient light will not have any impact or have a small impact on the display brightness of the screen detected by the brightness detection module.

If yes, perform step S430: detect the brightness value of the first display area and the second display area when the same content is displayed under at least one backlight level based on the brightness detection module.

In the embodiment of the present application, if the detected ambient light brightness is less than the preset brightness, it means that the ambient light will not have an impact on the display brightness of the screen detected by the brightness detection module at this time, or the impact will be small. Therefore, in this case, , the actual brightness value when displaying content in the first display area and the second display area can be detected through the brightness detection module, and accordingly the display parameters of the display area are adjusted and the brightness compensation parameters are updated, that is, step S430 and subsequent steps are performed. .

If not, perform step S440: output first prompt information, where the first prompt information is used to prompt the electronic device to be placed in a dark light environment.

In the embodiment of the present application, if the detected ambient light brightness is less than the preset brightness, it means that the ambient light will not have a great impact on the display brightness of the screen detected by the brightness detection module. At this time, if the brightness detection module detects the third The actual brightness values when displaying content in the first display area and the second display area, and adjusting the display parameters of the display area and updating the brightness compensation parameters accordingly will affect the accuracy of the brightness compensation parameters. Therefore, in this case, the electronic device can output the first prompt information to prompt the user to place the electronic device in a dark light environment. Optionally, the electronic device can output prompt sounds or pop-up windows. The first prompt information is output in a prompt manner, and the specific manner of outputting the first prompt information is not limited.

When the re-detected ambient light brightness is less than the preset brightness, perform step S430: detect the brightness of the first display area and the second display area when the same content is displayed under at least one backlight level based on the brightness detection module. value.

In the embodiment of the present application, after outputting the first prompt information, the electronic device can continue to detect the ambient light brightness. If the re-detected ambient light brightness is less than the preset brightness, the first display area can be detected through the brightness detection module at this time. and the actual brightness value when the second display area displays content, and accordingly adjusts the display parameters of the display area and updates the brightness compensation parameters, that is, performs step S430 and subsequent steps. It can be understood that after the electronic device outputs the first prompt information, if the user responds to the first prompt information and places the electronic device in a dark light environment, the ambient light brightness at this time will decrease. If the ambient light brightness is detected to be less than The preset brightness means that the ambient light will not have an impact on the display brightness of the screen detected by the brightness detection module at this time, or the impact will be small. Therefore, the brightness detection module can be used to detect the content of the first display area and the second display area. Actual brightness value, and accordingly adjust the display parameters of the display area and update the brightness compensation parameters.

Step S450: Based on the brightness values detected for the first display area and the second display area, perform display parameters for displaying content in the first display area or the second display area under the backlight level. Adjust until the brightness values of the first display area and the second display area detected by the brightness detection module match when the same content is displayed under the backlight level.

Step S460: Update the brightness compensation parameters of the screen based on the adjusted display parameters.

In the embodiment of the present application, the content of steps S450 and S460 can be referred to the previous embodiments, and will not be described again.

The brightness compensation method provided by the embodiment of the present application detects the ambient light brightness when the second display area is relatively expanded relative to the first display area. When the ambient light brightness is less than the preset brightness, the brightness detection module detects The actual brightness values when the first display area and the second display area display content, and accordingly the brightness compensation parameters are updated by adjusting the display parameters of the display area. Therefore, it is possible to avoid ambient light from detecting the first display area and the brightness detection module. The display brightness of the second display area is affected, thereby improving the accuracy of the final updated brightness compensation parameters and ensuring the screen display effect.

Please refer to FIG. 9 , which shows a schematic flowchart of a brightness compensation method provided by yet another embodiment of the present application. This brightness compensation method is applied to the above-mentioned electronic device. The electronic device includes a screen and a brightness detection module for detecting the display brightness of the screen. The screen includes a first display area and a second display area. The first display area The area and the second display area are selectively displayed simultaneously or non-simultaneously. The process shown in Figure 9 will be described in detail below. The brightness compensation method may specifically include the following steps:

Step S510: Detect the working status of the electronic device.

In the embodiment of the present application, because the electronic device uses the brightness detection module to detect the brightness values of the first display area and the second display area when displaying the same content under at least one backlight level, it is necessary to control the first display area and the second display area. The same content is displayed under each backlight level in at least one backlight level. Therefore, in order not to affect the normal use of the user, the working state of the electronic device can be detected, so that the second state is detected only when the working state of the electronic device is idle. The brightness values of the first display area and the second display area when displaying the same content under each of the above backlight levels.

Step S520: If the working state is an idle state, detect the brightness value of the first display area and the second display area when the same content is displayed under at least one backlight level based on the brightness detection module.

In the embodiment of the present application, after obtaining the working status of the electronic device, it can be determined whether the current working status of the electronic device is an idle state. If the working status of the electronic device is an idle state, it means that the user is not currently using the electronic device. When testing the first display area and the second display area, it will not affect the normal use of the user. Therefore, in this case, the first display area and the second display area can be detected based on the brightness detection module in each The brightness value when the same content is displayed under the backlight level, and subsequent steps are performed to update the brightness compensation parameters.

In the embodiment of the present application, when the first display area and the second display area are tested in the idle state to detect the brightness values of the first display area and the second display area when displaying the same content under each backlight level, Since the screen of the electronic device will turn on, in order to prevent the user from being uncomfortable if the screen turns on, the electronic device may also output a second prompt message to indicate that the brightness compensation parameters are currently being updated, thereby improving the user experience.

In the embodiment of the present application, since the luminescent pixels of the screen continue to age with use, the electronic device can perform steps S510 to S540 at preset intervals, and then periodically update the brightness compensation parameters to ensure The display effect of the screen.

Step S530: Based on the brightness values detected for the first display area and the second display area, perform display parameters for displaying content in the first display area or the second display area under the backlight level. Adjust until the brightness values of the first display area and the second display area detected by the brightness detection module match when the same content is displayed under the backlight level.

Step S540: Update the brightness compensation parameters of the screen based on the adjusted display parameters.

In the embodiment of the present application, the content of step S530 and step S540 can be referred to the previous embodiment, and will not be described again here.

The brightness compensation method provided by the embodiment of the present application uses the actually detected brightness values of the first display area and the second display area when the same content is displayed under at least one backlight level when the electronic device is in an idle state. The display parameters of the first display area or the second display area are adjusted so that the brightness values of the first display area and the second display area match when displaying the same content under each backlight level of at least one backlight level, so that the adjustment can be made according to The final display parameters determine the brightness compensation parameters of the screen, and then the brightness compensation can be performed on the first display area and the second display area where the above-mentioned display content and display duration are significantly different according to the brightness compensation parameters. Therefore, not only can the brightness difference between the first display area and the second display area when displaying content be improved, and the display effect of the screen be improved, but the normal use of the electronic device by the user can not be affected.

Please refer to FIG. 10 , which shows a structural block diagram of a brightness compensation device 400 provided by an embodiment of the present application. The brightness compensation device 400 applies the above-mentioned electronic equipment. The electronic equipment includes a screen and a brightness detection module for detecting the display brightness of the screen. The screen includes a first display area and a second display area. The first display area is The display area and the second display area are displayed simultaneously or non-simultaneously. The brightness compensation device 400 includes: a brightness detection module 410, a display adjustment module 420 and a parameter update module 430. Wherein, the brightness detection module 410 is used to detect the brightness value of the first display area and the second display area when the same content is displayed under at least one backlight level based on the brightness detection module; the display adjustment module 420 for adjusting display parameters of content displayed in the first display area or the second display area under the backlight level based on the brightness values detected for the first display area and the second display area. , until the brightness values of the first display area and the second display area detected by the brightness detection module when displaying the same content under the backlight level match; the parameter update module 430 is configured to based on the adjusted Display parameters update the brightness compensation parameters of the screen.

In some embodiments, the detected brightness value includes a brightness value when multiple grayscale content is displayed at each backlight level. The display adjustment module 420 may be specifically configured to: determine a target gray level and a target backlight level based on the brightness values of the first display area and the second display area when displaying multiple gray levels of content under the backlight level, Wherein, the brightness values of the first display area and the second display area when displaying the target grayscale content under the target backlight level do not match; for the first display area or the second display The display parameters of the area when displaying the target grayscale content under the target backlight level are adjusted until the brightness detection module detects that the first display area and the second display area are under the target backlight level. The brightness value matches when displaying the target grayscale content under the level.

In a possible implementation, the display adjustment module 420 is further configured to: based on the detected first brightness value of the first display area when displaying the target grayscale content under the target backlight level, determine A first brightness attenuation ratio of the first display area; determining the second brightness value based on the detected second brightness value of the second display area when displaying the target grayscale content under the target backlight level. a second brightness attenuation ratio of the display area; based on the first brightness attenuation ratio and the second brightness attenuation ratio, determine the display area to be adjusted in the first display area or the second display area as the target display area ; Adjust the display parameters of the target display area when displaying the target grayscale content under the target backlight level, until the first display area and the second display detected by the brightness detection module The brightness value of the region matches when displaying the content of the target grayscale under the target backlight level.

Optionally, the display adjustment module 420 is further configured to: if both the first brightness attenuation ratio and the second brightness attenuation ratio are less than a preset attenuation ratio, obtain the first brightness attenuation ratio and the second brightness attenuation ratio. For the minimum attenuation ratio in the attenuation ratio, the display area corresponding to the minimum attenuation ratio is used as the first target display area; if the first brightness attenuation ratio and the second brightness attenuation ratio are both greater than or equal to the preset attenuation ratio, Then, the maximum attenuation ratio among the first brightness attenuation ratio and the second brightness attenuation ratio is obtained, and the display area corresponding to the maximum attenuation ratio is used as the second target display area.

Optionally, the display adjustment module 420 is further configured to adjust the display parameters of the first target display area when the target grayscale content is displayed under the target backlight level, so that the first target display The brightness value of the area when displaying the target grayscale content under the target backlight level decreases until the brightness detection module detects that the first display area and the second display area are under the target backlight level. The brightness value matches when the content of the target grayscale is displayed under the level; or

Adjust the display parameters of the second target display area when displaying the target grayscale content under the target backlight level, so that the second target display area displays the target under the target backlight level. The brightness value of the gray-scale content increases until the brightness detection module detects that the first display area and the second display area display the target gray-scale content under the target backlight level. Brightness values match.

In a possible implementation, the display adjustment module 420 is further configured to: obtain a first brightness curve in which the brightness changes with the backlight level when the first display area displays content of multiple gray scales, to obtain the first display area. A plurality of first brightness curves, the plurality of first brightness curves correspond to a plurality of gray levels one-to-one; obtain a second brightness curve in which the brightness changes with the backlight level when the second display area displays content of multiple gray levels, and obtain The plurality of second brightness curves of the second display area correspond to the plurality of gray scales in a one-to-one manner; the first brightness curve and the second brightness curve corresponding to each gray scale are processed. Compare and get each Curve comparison results corresponding to each gray scale; determine the target gray scale and target backlight level according to the curve comparison result corresponding to each gray scale.

In some embodiments, the display parameters include: at least one of display gray scale and backlight level.

In some embodiments, the brightness detection module 410 may be specifically configured to: detect ambient light brightness; if the ambient light brightness is less than a preset brightness, detect the first display area and the second display based on the brightness detection module The brightness value of an area when it displays the same content under at least one backlight level.

In a possible implementation, the brightness compensation device 400 may further include a first prompt module. The first prompt module is configured to output first prompt information after detecting the ambient light brightness, if the ambient light brightness is greater than or equal to the preset brightness, and the first prompt information is used to prompt the electronic device to be Placed in a dark light environment; the brightness detection module 410 can also be used to detect the first display area and the second display area based on the brightness detection module when the re-detected ambient light brightness is less than the preset brightness. The brightness value when the same content is displayed in at least one backlight level.

In some embodiments, the brightness detection module 410 may be specifically configured to: detect the working state of the electronic device; if the working state is an idle state, detect the first display area and the third display area based on the brightness detection module. The brightness value of two display areas when displaying the same content under at least one backlight level.

In a possible implementation, the brightness compensation device 400 may further include a second prompt module. The second prompt module is configured to output second prompt information if the working state is a preset state, and the second prompt information is used to prompt that the brightness compensation parameter is currently being updated.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the above-described devices and modules can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

In several embodiments provided in this application, the coupling between modules may be electrical, mechanical or other forms of coupling.

In addition, each functional module in each embodiment of the present application can be integrated into one processing module, or each module can exist physically alone, or two or more modules can be integrated into one module. The above integrated modules can be implemented in the form of hardware or software function modules.

To sum up, in the solution provided by this application, since the first display area and the second display area of the screen are selectively displayed simultaneously or non-simultaneously, when the second display area is expanded relative to the first display area Next, for the first display area and the second display area that have a large difference in display content and display duration, use the brightness detection module to detect the brightness of the first display area or the second display area when displaying content under at least one backlight level. , adjust the display parameters of the first display area or the second display area so that the brightness values of the first display area and the second display area match when displaying the same content under the above backlight level, and compensate the brightness according to the adjusted display parameters. The parameters are updated, and then the brightness compensation can be performed on the first display area and the second display area that have a large difference in display content and display duration according to the brightness compensation parameters, so as to improve the display time of the first display area and the second display area. The difference in brightness improves the display effect of the screen.

Please refer to FIG. 11 , which shows a structural block diagram of an electronic device provided by an embodiment of the present application. The electronic device 100 may be a smartphone, a tablet computer, a smart watch, an e-book, or other electronic device capable of running applications. The electronic device 100 in the present application may include one or more of the following components: a processor 110, a memory 120, and one or more application programs, wherein one or more application programs may be stored in the memory 120 and configured by One or more processors 110 execute, and one or more application programs are configured to execute the method as described in the foregoing method embodiments.

Processor 110 may include one or more processing cores. The processor 110 uses various interfaces and lines to connect various parts of the entire electronic device 100, and executes by running or executing instructions, programs, code sets or instruction sets stored in the memory 120, and calling data stored in the memory 120. Various functions and processing data of the electronic device 100 . Optionally, the processor 110 may use at least one of digital signal processing (Digital Signal Processing, DSP), field-programmable gate array (Field-Programmable Gate Array, FPGA), and programmable logic array (Programmable Logic Array, PLA). implemented in hardware form. The processor 110 may integrate one or a combination of a central processing unit (Central Processing Unit, CPU), a graphics processor (Graphics Processing Unit, GPU), a modem, etc. Among them, the CPU mainly handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the display content; and the modem is used to handle wireless communications. It can be understood that the above-mentioned modem may not be integrated into the processor 110 and may be implemented solely through a communication chip.

The memory 120 may include random access memory (RAM) or read-only memory (Read-Only Memory). Memory 120 may be used to store instructions, programs, codes, sets of codes, or sets of instructions. The memory 120 may include a program storage area and a data storage area, where the program storage area may store instructions for implementing an operating system and instructions for implementing at least one function (such as a touch function, a sound playback function, an image playback function, etc.) , instructions for implementing each of the following method embodiments, etc. The storage data area can also store data created during use of the electronic device 100 (such as phone book, audio and video data, chat record data), etc.

Please refer to FIG. 12 , which shows a structural block diagram of a computer-readable storage medium provided by an embodiment of the present application. Program code is stored in the computer-readable medium 800, and the program code can be called by the processor to execute the method described in the above method embodiment.

Computer-readable storage medium 800 may be electronic memory such as flash memory, EEPROM (electrically erasable programmable read-only memory), EPROM, hard disk, or ROM. Optionally, the computer-readable storage medium 800 includes non-transitory computer-readable storage medium. The computer-readable storage medium 800 has storage space for program code 810 that performs any method steps in the above-described methods. These program codes can be read from or written into one or more computer program products. Program code 810 may, for example, be compressed in a suitable form.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: it can still Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent substitutions are made to some of the technical features; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions in the embodiments of the present application.

Claims

A brightness compensation method, characterized in that it is applied to an electronic device, the electronic device includes a screen and a brightness detection module for detecting the display brightness of the screen, the screen includes a first display area and a second display area, The first display area and the second display area are selectively displayed simultaneously or non-simultaneously, and the method includes:

Based on the brightness detection module, detect the brightness value of the first display area and the second display area when the same content is displayed under at least one backlight level;

Based on the brightness values detected for the first display area and the second display area, the display parameters of the content displayed in the first display area or the second display area under the backlight level are adjusted until The brightness values of the first display area and the second display area detected by the brightness detection module match when the same content is displayed under the backlight level;

Based on the adjusted display parameters, the brightness compensation parameters of the screen are updated.
The method of claim 1, wherein the detected brightness value includes a brightness value when displaying multiple grayscale content under each backlight level, and the method is based on the first display area and the The brightness value detected in the second display area is used to adjust the display parameters of the content displayed in the first display area or the second display area under the backlight level, including:

Based on the brightness values of the first display area and the second display area when displaying content of multiple gray levels under the backlight level, a target gray level and a target backlight level are determined, wherein the first display area and The brightness value of the second display area when displaying the target grayscale content under the target backlight level does not match;

Adjust the display parameters of the first display area or the second display area when displaying the target grayscale content under the target backlight level until the brightness detection module detects the first display The brightness values of the area and the second display area match when displaying the target grayscale content under the target backlight level.
The method according to claim 2, characterized in that the display parameters of the first display area or the second display area are adjusted when the content of the target gray scale is displayed under the target backlight level. ,include:

Determine a first brightness attenuation ratio of the first display area based on the detected first brightness value of the first display area when displaying the target grayscale content under the target backlight level;

Determine a second brightness attenuation ratio of the second display area based on the detected second brightness value of the second display area when displaying the target grayscale content under the target backlight level;

Based on the first brightness attenuation ratio and the second brightness attenuation ratio, determine the display area to be adjusted in the first display area or the second display area as the target display area;

Adjust the display parameters of the target display area when displaying the target grayscale content under the target backlight level until the brightness detection module detects the first display area and the second display area. Brightness value matching when displaying content of the target gray scale under the target backlight level.
The method according to claim 3, characterized in that, based on the first brightness attenuation ratio and the second brightness attenuation ratio, determining the value to be adjusted in the first display area or the second display area. The display area serves as the target display area, including:

If both the first brightness attenuation ratio and the second brightness attenuation ratio are less than the preset attenuation ratio, obtain the minimum attenuation ratio among the first brightness attenuation ratio and the second brightness attenuation ratio, and add the minimum attenuation ratio to The display area corresponding to the attenuation ratio is used as the first target display area;

If both the first brightness attenuation ratio and the second brightness attenuation ratio are greater than or equal to the preset attenuation ratio, obtain the maximum attenuation ratio among the first brightness attenuation ratio and the second brightness attenuation ratio, and The display area corresponding to the maximum attenuation ratio is used as the second target display area.
The method according to claim 4, characterized in that adjusting the display parameters of the target display area when displaying the target grayscale content under the target backlight level includes:

Adjust the display parameters when the first target display area displays the target grayscale content under the target backlight level, so that the first target display area displays the target under the target backlight level. The brightness value of the gray-scale content decreases until the brightness detection module detects that the first display area and the second display area display the target gray-scale content under the target backlight level. Brightness values match; or

Adjust the display parameters of the second target display area when displaying the target grayscale content under the target backlight level, so that the second target display area displays the target under the target backlight level. The brightness value of the grayscale content increases until the brightness detection module detects that the first display area and the second display area are in the target backlight, etc. The brightness value matches when the content of the target grayscale is displayed below the level.
The method according to any one of claims 2 to 5, characterized in that the brightness based on the first display area and the second display area when displaying multiple grayscale content under the backlight level is Value, determine the target gray level and target backlight level, including:

Obtain a first brightness curve in which the brightness changes with the backlight level when the first display area displays multiple grayscale content, and obtain multiple first brightness curves of the first display area, multiple first brightness curves and multiple first brightness curves. Grayscale one-to-one correspondence;

Obtain a second brightness curve in which the brightness changes with the backlight level when the second display area displays content of multiple gray levels, and obtain multiple second brightness curves of the second display area. The multiple second brightness curves and the multiple Grayscale one-to-one correspondence;

Compare the first brightness curve corresponding to each gray level and the second brightness curve to obtain a curve comparison result corresponding to each gray level;

According to the curve comparison result corresponding to each gray level, the target gray level and the target backlight level are determined.
The method according to any one of claims 2 to 5, characterized in that the brightness based on the first display area and the second display area when displaying multiple grayscale content under the backlight level is Value, determine the target gray level and target backlight level, including:

Obtain a third brightness curve in which the brightness changes with gray levels when the first display area displays content of multiple gray levels under each backlight level, and obtain a plurality of third brightness curves of the first display area, and the plurality of third brightness curves are obtained. A third brightness curve corresponds to multiple backlight levels one-to-one;

Obtain a fourth brightness curve in which the brightness changes with gray levels when the second display area displays multiple gray-scale content under each backlight level, and obtain multiple fourth brightness curves. The multiple fourth brightness curves are related to the multiple gray-scale content. Each backlight level corresponds one to one;

Compare the third brightness curve corresponding to each backlight level and the fourth brightness curve to obtain a curve comparison result corresponding to each backlight level;

According to the curve comparison result corresponding to each backlight level, the target gray level and the target backlight level are determined.
The method according to any one of claims 2 to 7, characterized in that the method is based on the detected first brightness of the first display area when displaying the target grayscale content under the target backlight level. value to determine the first brightness attenuation ratio of the first display area, including:

Based on the first initial brightness value of the first display area when the content of the target gray scale is displayed under the target backlight level and the first brightness value detected when the electronic device leaves the factory, the first brightness value is determined. The first brightness attenuation ratio of the display area.
The method according to any one of claims 2 to 7, characterized in that the method is based on the detected second brightness of the second display area when displaying the target grayscale content under the target backlight level. value to determine the second brightness attenuation ratio of the second display area, including:

Based on the second initial brightness value of the second display area when the content of the target grayscale is displayed under the target backlight level and the second brightness value detected when the electronic device leaves the factory, the second display area is determined. The second brightness attenuation ratio of the display area.
The method according to any one of claims 1 to 9, characterized in that the display parameters include: at least one of display gray scale and backlight level.
The method according to any one of claims 1 to 10, wherein the brightness detection module detects when the first display area and the second display area display the same content under at least one backlight level. brightness values, including:

Detect ambient light brightness;

If the ambient light brightness is less than the preset brightness, the brightness detection module detects the brightness value of the first display area and the second display area when the same content is displayed under at least one backlight level.
The method according to claim 11, characterized in that after detecting ambient light brightness, the method further includes:

If the ambient light brightness is greater than or equal to the preset brightness, output first prompt information, and the first prompt information is used to prompt the electronic device to be placed in a dark light environment;

When the re-detected ambient light brightness is less than the preset brightness, the brightness detection module detects the brightness value of the first display area and the second display area when the same content is displayed under at least one backlight level.
The method according to any one of claims 1 to 12, wherein the brightness detection module detects when the first display area and the second display area display the same content under at least one backlight level. brightness values, including:

Detect the working status of the electronic device;

If the working state is an idle state, the brightness detection module detects the brightness value of the first display area and the second display area when the same content is displayed under at least one backlight level.
The method according to claim 13, characterized in that if the working state is a preset state, the method further includes:

Second prompt information is output, and the second prompt information is used to prompt that the brightness compensation parameter is currently being updated.
The method according to any one of claims 1-14, characterized in that the first display area and the second display area Matching of brightness values when a region displays the same content at the stated backlight level, including:

The first display area and the second display area have the same brightness value when displaying the same content under the backlight level; or

The absolute value of the difference between the brightness values of the first display area and the second display area when the same content is displayed under the backlight level is less than a preset threshold.
The method according to any one of claims 1 to 15, wherein the brightness detection module detects when the first display area and the second display area display the same content under at least one backlight level. brightness values, including:

Control the screen to display a test image under at least one backlight level, and detect the display brightness of the first display area and the second display area based on the brightness detection module to obtain the first display area and the second display area. The brightness value of two display areas when displaying the same content under at least one backlight level.
The method according to any one of claims 1 to 16, characterized in that, after updating the brightness compensation parameters of the screen based on the adjusted display parameters, the method further includes:

In the case where both the first display area and the second display area display content under the backlight level, the first display area or the second display area is adjusted according to the updated brightness compensation parameter. Adjust the display parameters of the area.
A brightness compensation device, characterized in that it is applied to electronic equipment. The electronic equipment includes a screen and a brightness detection module for detecting the display brightness of the screen. The screen includes a first display area and a second display area, The first display area and the second display area are selectively displayed simultaneously or non-simultaneously, and the device includes: a brightness detection module, a display adjustment module and a parameter update module, wherein,

The brightness detection module is configured to detect the brightness value of the first display area and the second display area when the same content is displayed under at least one backlight level based on the brightness detection module;

The display adjustment module is configured to display content in the first display area or the second display area under the backlight level based on the brightness values detected for the first display area and the second display area. The display parameters are adjusted until the brightness values of the first display area and the second display area detected by the brightness detection module match when displaying the same content under the backlight level;

The parameter update module is used to update the brightness compensation parameters of the screen based on the adjusted display parameters.
An electronic device, characterized by including:

one or more processors;

memory;

one or more programs, wherein said one or more programs are stored in said memory and configured to be executed by said one or more processors, said one or more programs are configured to perform as claimed The method described in any one of 1-17.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores program code, and the program code can be called by a processor to execute the method according to any one of claims 1-17 .