Display control method and computer readable storage medium

Abstract

The invention relates to the technical field of display, and particularly discloses a display control method and a computer readable storage medium, and the method comprises the steps: carrying out the output control of a whole display screen according to a first refresh rate; adjusting the refresh rate corresponding to the target area in the display screen to be a second refresh rate; if a difference value between the brightness of the target area and the brightness of other areas is within a preset range when output control is performed on the target area according to a second refresh rate, establishing a refresh rate binding point which represents a mapping relationship between the first refresh rate and the second refresh rate; and when the number of the refresh rate binding points does not reach the preset number, adjusting the first refresh rate, and returning to execute the step of performing output control on the whole display screen according to the first refresh rate so as to establish the next refresh rate binding point. Therefore, the required number of refresh rate binding points can be established, that is, the mapping relation between the refresh rate corresponding to the whole screen and the refresh rate corresponding to the target area is determined, and the problem that the brightness of the display screen is not uniform is solved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display control method and a computer-readable storage medium. Background Art

[0002] Organic Light Emitting Diode (OLED), also known as organic electric laser display, organic light-emitting semiconductor, etc., can meet consumers' new demands for display technology due to its advantages such as light weight, high brightness, good flexibility, high contrast, and wide color gamut. More and more display manufacturers around the world have invested in research, and OLED has now occupied a place in the display field.

[0003] Currently, OLED is developing in the direction of low power consumption and large size. The display screen often has uneven brightness. For example, the brightness difference between the hole area and other areas is getting bigger and bigger, and the limitations of using algorithm compensation are becoming more and more prominent, and it is impossible to solve the problem of uneven brightness well. Summary of the invention

[0004] Based on this, it is necessary to provide a display control method and a computer-readable storage medium to address the above problems.

[0005] According to a first aspect of an embodiment of the present application, a display control method is provided, which is applied to a display screen, comprising:

[0006] Controlling the output of the entire display screen according to a first refresh rate;

[0007] Adjusting the refresh rate corresponding to the target area in the display screen to a second refresh rate, where the second refresh rate is different from the first refresh rate;

[0008] If, when the target area is output-controlled according to the second refresh rate, the difference between the brightness of the target area and the brightness of other areas is within a preset range, a refresh rate binding point is established, where the refresh rate binding point represents a mapping relationship between the first refresh rate and the second refresh rate;

[0009] When the number of the refresh rate binding points does not reach the preset number, the first refresh rate is adjusted, and the step of performing output control on the entire display screen according to the first refresh rate is returned to establish the next refresh rate binding point.

[0010] In one embodiment, before the step of adjusting the refresh rate corresponding to the target area in the display screen to the second refresh rate, the display control method further includes: obtaining the position information of the target area in the display screen. In one embodiment, the target area is located between the Mth row and the Nth row of the display screen; the step of adjusting the refresh rate corresponding to the target area in the display screen to the second refresh rate includes: adjusting the refresh rate corresponding to the Mth row to the Nth row of the display screen to the second refresh rate.

[0011] In one embodiment, the step of adjusting the refresh rate corresponding to the Mth to Nth rows of the display screen to the second refresh rate includes: outputting the TE signal corresponding to the Mth to Nth rows of the display screen to adjust the refresh rate corresponding to the Mth to Nth rows to the second refresh rate.

[0012] In one embodiment, the target area includes a hole area, a bangs area, or a fingerprint area in the display screen.

[0013] In one of the embodiments, the display control method also includes: if the difference between the brightness of the target area and the brightness of other areas exceeds the preset range when the output of the target area is controlled according to the second refresh rate, then the second refresh rate is adjusted until the difference between the brightness of the target area and the brightness of other areas falls within the preset range.

[0014] In one of the embodiments, the display control method further includes: when the number of the refresh rate binding points reaches the preset number, determining the second refresh rates corresponding to other first refresh rates according to the distribution pattern of each refresh rate binding point.

[0015] In one of the embodiments, in the step of determining the second refresh rate corresponding to other first refresh rates according to the distribution pattern of each refresh rate binding point, a linear interpolation method is used to determine the second refresh rate corresponding to other first refresh rates according to the distribution pattern of each refresh rate binding point.

[0016] In one embodiment, the first refresh rate is greater than the second refresh rate.

[0017] According to a second aspect of an embodiment of the present application, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the display control method as described above is implemented.

[0018] The display control method provided in the embodiment of the present application adjusts the refresh rate corresponding to the target area in the display screen to a second refresh rate different from the first refresh rate when the output of the entire display screen is controlled according to the first refresh rate, and then determines whether the difference between the brightness of the target area and the brightness of other areas is within a preset range when the target area is controlled according to the second refresh rate. If so, it is determined that when the entire display screen is controlled at the first refresh rate, the target area in the display screen is controlled at the second refresh rate, and a refresh rate binding point is established, that is, a mapping relationship between the first refresh rate and the second refresh rate is formed. If the number of refresh rate binding points is insufficient, the first refresh rate is adjusted, and the step of performing output control on the entire display screen according to the first refresh rate is returned, that is, a new refresh rate binding point is established.

[0019] In this way, the required number of refresh rate binding points can be established, that is, the mapping relationship between the refresh rate corresponding to the entire screen and the refresh rate corresponding to the target area can be determined. When the entire screen is controlled at a first refresh rate, the refresh rate of the target area can be adjusted to a second refresh rate corresponding to the first refresh rate, thereby reducing the brightness difference between the target area and other areas and solving the problem of uneven brightness of the display screen. Compared with the traditional algorithm compensation brightness method, the above method reduces power consumption and increases the brightness compensation range while ensuring the brightness compensation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a display screen;

[0021] Figure 2 A flowchart of a display control method provided in an embodiment of the present application;

[0022] Figure 3 A flowchart of a display control method provided in an embodiment of the present application;

[0023] Figure 4 A flowchart of a display control method provided in accordance with an embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to understand the disclosure of the present application more thoroughly and comprehensively.

[0025] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0028] Organic Light Emitting Diode (OLED), also known as organic electric laser display, organic light-emitting semiconductor, etc., can meet consumers' new demands for display technology due to its advantages such as light weight, high brightness, good flexibility, high contrast, and wide color gamut. More and more display manufacturers around the world have invested in research, and OLED has now occupied a place in the display field.

[0029] Currently, OLED is developing in the direction of low power consumption and large size. The display screen often has uneven brightness. For example, the brightness difference between the hole area and other areas is getting bigger and bigger, and the limitations of using algorithm compensation are becoming more and more prominent, and it is impossible to solve the problem of uneven brightness well.

[0030] Specifically, refer to Figure 1Due to the uneven GIP driving, the brightness of the display screen 100 in the vertical direction will be uneven. For the hole-punch screen, there are fewer driven pixels in the horizontal area where the hole-punch area 200 is located, and there are more driven pixels in other horizontal areas, which leads to different driving capabilities in different areas. Under the same data, there are differences in the gate charging capabilities of the DTFT, which in turn leads to differences in brightness. In addition, for the hole-punch screen with a centered hole, the scan line will be directly disconnected in the hole area or the bangs area, that is, it becomes a single-sided drive, which will also cause differences in driving capabilities. The difference in driving capabilities in different areas of the display screen will lead to uneven display brightness in different areas.

[0031] The main solution to the above-mentioned uneven brightness problem is to use a compensation algorithm to compensate and output the Data value of the hole area or bangs area, and then actively control the pixel brightness. However, the compensation algorithm has the following limitations: power consumption increases through algorithm operation; the value of the compensation of the Data value is limited by the gamma voltage. If it is 255 grayscale compensation, gamma remapping is also required, which is more cumbersome. In addition, the current development trend of OLED is to reduce power consumption and increase size. The difference in brightness between different areas on the screen will become larger and larger, and the limitations of using algorithms for brightness compensation will become more and more prominent.

[0032] In response to the above problems, embodiments of the present application provide a display control method and a computer-readable storage medium.

[0033] Reference Figure 2 In one embodiment, a display control method is provided, which can be applied to a display screen.

[0034] The display control method provided in this embodiment includes the following steps:

[0035] Step S200: controlling the output of the entire display screen according to the first refresh rate.

[0036] First, the entire display screen can be output controlled according to the first refresh rate, wherein the first refresh rate can be a commonly used refresh rate of the entire screen in actual applications. When the entire screen is controlled at the first refresh rate, since the driving capability of local areas such as the hole-punch area is worse than that of other areas, the brightness of local areas such as the hole-punch area is darker than that of other areas, that is, there is a brightness difference.

[0037] Step S400: adjusting the refresh rate corresponding to the target area in the display screen to a second refresh rate, where the second refresh rate is different from the first refresh rate.

[0038] After the entire display screen is lit up at the first refresh rate, the refresh rate corresponding to the target area in the display screen is adjusted to the second refresh rate, wherein the second refresh rate is different from the first refresh rate, and the area outside the target area in the display screen still maintains the first refresh rate. The target area may include areas with dim brightness such as the hole area, bangs area, or fingerprint area in the display screen, wherein the bangs area refers to an elongated groove or cutout set on the display screen, and its shape is similar to the front end of the bangs hairstyle. The bangs area of ​​the display screen can accommodate electronic components such as the front camera, earpiece, and facial recognition sensor. That is, for the dim areas in the display screen, the refresh rate of this area can be adjusted to be different from the refresh rate of other areas. When the refresh rate changes, the screen brightness will also change, that is, when the refresh rate of the target area changes, the brightness of the target area will also change, thereby compensating for the brightness deviation from other areas.

[0039] Step S600: If the difference between the brightness of the target area and the brightness of other areas is within a preset range when the output of the target area is controlled according to the second refresh rate, a refresh rate binding point is established, and the refresh rate binding point represents the mapping relationship between the first refresh rate and the second refresh rate.

[0040] It should be further explained that, in the solution proposed by the present invention, a refresh rate binding point represents a first refresh rate and a corresponding second refresh rate, and the first refresh rate and the second refresh rate are bound together to form a mapping relationship. When the first refresh rate and the second refresh rate are used, the difference between the brightness of the target area and the brightness of other areas is maintained within a preset range.

[0041] In order to ensure that the brightness difference between the target area after the refresh rate adjustment and other areas of the display screen remains within a preset range, when the target area is controlled at the second refresh rate, the brightness of the target area and the brightness of other areas can be detected. If the difference between the brightness of the two is within the preset range, it is determined that when the entire screen is controlled at the first refresh rate, the target area can be controlled at the second refresh rate. In this way, a refresh rate binding point can be established, that is, a mapping relationship between the first refresh rate and the second refresh rate is established, so that the mapping relationship can be directly called in subsequent practical applications.

[0042] In this embodiment, a refresh rate binding point can represent a group of first refresh rates and second refresh rates bound together. When the entire screen is controlled according to the first refresh rate in the group and the target area is controlled according to the second refresh rate in the group, the brightness difference between the target area and other areas is within a preset range.

[0043] In one embodiment, the first refresh rate may be greater than the second refresh rate.

[0044] In one embodiment, the preset range may be 0 nits to 5 nits.

[0045] Step S800: When the number of the refresh rate binding points does not reach the preset number, the first refresh rate is adjusted, and the step of outputting the entire display screen according to the first refresh rate is returned to establish the next refresh rate binding point.

[0046] In this embodiment, multiple refresh rate binding points need to be set, and the number of refresh rate binding points can be set according to actual needs, such as 2, 3, or 4. Therefore, after each refresh rate binding point is established, the number of existing refresh rate binding points can be judged. If the number of refresh rate binding points is less than the preset number, a new refresh rate binding point can be established, that is, the first refresh rate is adjusted, and the execution returns to step S200.

[0047] For example, the preset number of refresh rate binding points is 3. The first refresh rate binding point is currently established. The first refresh rate corresponding to the first refresh rate binding point is 120HZ, and the corresponding second refresh rate is 100HZ. At this time, the number of refresh rate binding points does not meet the preset number, so the first refresh rate is adjusted to 90HZ, and the output of the entire screen is controlled according to 90HZ, and then the refresh rate of the target area is adjusted to 80HZ. If the difference between the brightness of the target area and the brightness of the entire screen is within the preset range at this time, the second refresh rate binding point is established, and the first refresh rate corresponding to the second refresh rate binding point is 90HZ, and the corresponding second refresh rate is 80HZ, and so on, until the number of refresh rates meets the preset number, and then the subsequent steps can be performed.

[0048] The display control method provided by the embodiment of the present application, when the entire display screen is output controlled according to the first refresh rate, the refresh rate corresponding to the target area in the display screen is adjusted to a second refresh rate different from the first refresh rate, and then it is determined whether the difference between the brightness of the target area and the brightness of other areas is within a preset range when the target area is controlled according to the second refresh rate. If so, it is determined that when the entire display screen is controlled at the first refresh rate, the target area in the display screen is controlled at the second refresh rate, and a refresh rate binding point is established, that is, a mapping relationship between the first refresh rate and the second refresh rate is formed. If the number of refresh rate binding points is insufficient, the first refresh rate is adjusted, and the step of output controlling the entire display screen according to the first refresh rate is returned to, that is, a new refresh rate binding point is established. Thus, the required number of refresh rate binding points can be established, that is, the mapping relationship between the refresh rate corresponding to the entire screen and the refresh rate corresponding to the target area is determined. When the entire screen is controlled at a certain first refresh rate, the refresh rate of the target area can be adjusted to the second refresh rate corresponding to the first refresh rate, thereby reducing the brightness difference between the target area and other areas, solving the problem of uneven brightness of the display screen, and compared with the traditional algorithm compensation brightness method, the above method reduces power consumption and increases the brightness compensation range on the basis of ensuring the brightness compensation effect.

[0049] Reference Figure 3 In one embodiment, before step S400, i.e., the step of adjusting the refresh rate corresponding to the target area in the display screen to the second refresh rate, the display control method provided by this embodiment further includes:

[0050] Step S300: Acquire the position information of the target area in the display screen.

[0051] In this embodiment, before adjusting the refresh rate corresponding to the target area, it is necessary to know the position information of the target area in the display screen. Therefore, the position information of the target area in the display screen is first obtained, and then the refresh rate of the target area is adjusted.

[0052] Specifically, the display screen may be an array structure of m rows and n columns, and the position information of the target area may be the row information of the target area in the display screen, wherein m and n are both positive integers. For example, the row information of the target area in the display screen is the Mth row to the Nth row of the display screen, wherein M and N are both positive integers, and M<N.

[0053] In one embodiment, assuming that the target area is located between the Mth and Nth rows of the display screen, step S400, i.e., the step of adjusting the refresh rate corresponding to the target area in the display screen to the second refresh rate, includes: adjusting the refresh rate corresponding to the Mth and Nth rows in the display screen to the second refresh rate. That is, in this step, the refresh rate of the row where the local area such as the hole area, the fringe area, or the fingerprint area is located in the display screen is adjusted.

[0054] In addition, the step of adjusting the refresh rate corresponding to the Mth to Nth rows of the display screen to the second refresh rate includes: outputting the TE (Tearing Effect) signal corresponding to the Mth to Nth rows of the display screen to adjust the refresh rate corresponding to the Mth to Nth rows to the second refresh rate. The display screen in this embodiment can support LTPO3.0, that is, the refresh rate of some areas can be independently controlled according to the TE signal, thereby outputting the TE signal corresponding to the Mth to Nth rows of the display screen, and then adjusting the refresh rate corresponding to the Mth to Nth rows.

[0055] Among them, the TE signal is a tearing effect signal, which is an important signal in the display screen and is used to prevent the display screen from tearing during the display process.

[0056] In one embodiment, referring to Figure 4 The display control method provided in this embodiment also includes: if the difference between the brightness of the target area and the brightness of other areas exceeds a preset range when the output of the target area is controlled according to the second refresh rate, the second refresh rate is adjusted until the difference between the brightness of the target area and the brightness of other areas is within the preset range.

[0057] That is, the current second refresh rate may not be able to adjust the brightness of the target area to keep the difference with the brightness of other areas within the preset range. Therefore, when it is determined that the output of the target area is controlled according to the current second refresh rate, and the difference between the brightness of the target area and the brightness of other areas exceeds the preset range, the second refresh rate can be further adjusted until it is detected that the difference between the brightness of the target area and the brightness of other areas is reduced to within the preset range.

[0058] For example, when the first refresh rate is 120HZ, the second refresh rate is set to 110HZ. When the entire screen is controlled at a refresh rate of 120HZ, the target area is controlled at a refresh rate of 110HZ. If it is detected that the difference between the brightness of the target area and the brightness of the area outside the target area exceeds the preset range, the second refresh rate is adjusted. For example, the second refresh rate is set to 100HZ, and then the target area is controlled at a refresh rate of 100HZ. If it is detected that the difference between the brightness of the target area and the brightness of the area outside the target area is reduced to within the preset range, a mapping relationship between the first refresh rate of 120HZ and the second refresh rate of 100HZ is established, that is, the refresh rate binding point.

[0059] In one embodiment, referring to Figure 4 The display control method provided in this embodiment also includes: when the number of the refresh rate binding points reaches a preset number, determining the second refresh rate corresponding to other first refresh rates according to the distribution rule of each refresh rate binding point.

[0060] When the number of refresh rate binding points meets the preset number, the second refresh rates corresponding to the remaining first refresh rates between the binding points can be determined. For example, it is known that there are three refresh rate binding points, namely A, B, and C. See the following table for details:

[0061] Point A Point B Point C First refresh rate 120HZ 90HZ 60HZ Second refresh rate 100HZ 80HZ 50HZ

[0062] When the three refresh rate binding points A, B, and C are established, the second refresh rates corresponding to other first refresh rates can be determined according to the distribution law of each refresh rate binding point, that is, the mapping law between the first refresh rate and the second refresh rate can be determined according to the three refresh rate binding points A, B, and C, thereby determining the second refresh rates corresponding to other first refresh rates. Specifically, a linear interpolation method can be used to determine the second refresh rates corresponding to other first refresh rates according to the distribution law of each refresh rate binding point. For example, the second refresh rates corresponding to the first refresh rates of 100HZ, 110HZ, and 80HZ can be determined according to the linear interpolation method.

[0063] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0064] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0065] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent. It should be noted that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A display control method, characterized in that: include: Controlling the output of the entire display screen according to a first refresh rate; Adjusting the refresh rate corresponding to the target area in the display screen to a second refresh rate, where the second refresh rate is different from the first refresh rate; If, when the target area is output-controlled according to the second refresh rate, the difference between the brightness of the target area and the brightness of other areas is within a preset range, a refresh rate binding point is established, where the refresh rate binding point represents a mapping relationship between the first refresh rate and the second refresh rate; When the number of the refresh rate binding points does not reach the preset number, the first refresh rate is adjusted, and the step of performing output control on the entire display screen according to the first refresh rate is returned to establish the next refresh rate binding point.

2. The display control method according to claim 1, characterized in that: Before the step of adjusting the refresh rate corresponding to the target area in the display screen to a second refresh rate, the display control method further includes: acquiring position information of the target area in the display screen.

3. The display control method according to claim 2, characterized in that: The target area is located between the Mth and Nth rows of the display screen; and the step of adjusting the refresh rate corresponding to the target area in the display screen to the second refresh rate includes: adjusting the refresh rate corresponding to the Mth and Nth rows in the display screen to the second refresh rate.

4. The display control method according to claim 3, characterized in that: The step of adjusting the refresh rate corresponding to the Mth to Nth rows of the display screen to the second refresh rate includes: outputting the TE signal corresponding to the Mth to Nth rows of the display screen to adjust the refresh rate corresponding to the Mth to Nth rows to the second refresh rate.

5. The display control method according to claim 1, characterized in that: The target area includes a hole area, a bangs area or a fingerprint area in the display screen.

6. The display control method according to claim 1, characterized in that: The display control method also includes: if the difference between the brightness of the target area and the brightness of other areas exceeds the preset range when the output of the target area is controlled according to the second refresh rate, the second refresh rate is adjusted until the difference between the brightness of the target area and the brightness of other areas falls within the preset range.

7. The display control method according to claim 1, characterized in that: The display control method further includes: when the number of the refresh rate binding points reaches the preset number, determining the second refresh rates corresponding to the other first refresh rates according to the distribution rule of each refresh rate binding point.

8. The display control method according to claim 7, characterized in that: In the step of determining the second refresh rate corresponding to other first refresh rates according to the distribution law of each refresh rate binding point, a linear interpolation method is used to determine the second refresh rate corresponding to other first refresh rates according to the distribution law of each refresh rate binding point.

9. The display control method according to claim 1, characterized in that: The first refresh rate is greater than the second refresh rate.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the display control method according to any one of claims 1 to 9 is implemented.

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