WO2020147195A1 - 显示面板亮度的控制方法及装置、存储介质、处理器 - Google Patents

显示面板亮度的控制方法及装置、存储介质、处理器 Download PDF

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Publication number
WO2020147195A1
WO2020147195A1 PCT/CN2019/079548 CN2019079548W WO2020147195A1 WO 2020147195 A1 WO2020147195 A1 WO 2020147195A1 CN 2019079548 W CN2019079548 W CN 2019079548W WO 2020147195 A1 WO2020147195 A1 WO 2020147195A1
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Prior art keywords
bit width
preset bit
display panel
pixel values
pixel
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PCT/CN2019/079548
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English (en)
French (fr)
Inventor
焦歆
朱宁
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硅谷数模半导体（北京）有限公司
硅谷数模国际有限公司
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Priority to US17/294,115 priority Critical patent/US11501689B2/en
Publication of WO2020147195A1 publication Critical patent/WO2020147195A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve

Definitions

  • the invention relates to the field of display panel control, and in particular to a method and device for controlling the brightness of a display panel, a storage medium, and a processor.
  • the display panel often has uneven brightness, which causes various display traces, that is, the Mura phenomenon.
  • the input signal attenuation is inconsistent, which leads to differences in display brightness.
  • the current way is to adjust the display brightness by adjusting the displayed grayscale value to achieve the effect of uniform display brightness of the display panel, but this When adjusting the gray-scale compensation voltage in this way, the calculation of the gray-scale value is often inaccurate, and the large amount of value causes the value of the compensation voltage to be wrong, which leads to uneven brightness of the display, and also makes the brightness compensation accuracy insufficient.
  • users tend to experience increased fatigue when viewing the displayed content on the display panel, and the user's interest in using the display panel is also reduced.
  • the embodiment of the present invention provides a method and device for controlling the brightness of a display panel, a storage medium, and a processor, so as to at least solve the problem of eliminating uneven brightness of the display panel by adjusting the gray-scale compensation voltage in the related art.
  • the accuracy is not enough, which reduces the technical problems that users are interested in using the display panel.
  • a method for controlling the brightness of a display panel including: acquiring a plurality of pixel values processed by an image processor, wherein the bit width of each pixel value is a first preset Bit width; data type conversion is performed on each of the pixel values to obtain a plurality of pixel values of a second preset bit width, wherein the second preset bit width is higher than the first preset bit width; The pixel value of the second preset bit width is sent to the digital-analog conversion module to determine the voltage output value of each sub-pixel of the display panel, wherein the voltage output value and the screen brightness of the display panel are in the first Linear relationship; adjusting the voltage output value to control the screen brightness of the display panel.
  • the first preset bit width is greater than or equal to 8 bits, and the second preset bit width is greater than or equal to 11 bits.
  • the method further includes: presetting a reserved conversion range for brightness adjustment, wherein the preset The left conversion range is set to adjust the maximum brightness of the display panel.
  • the method further includes: determining the multiple pixel values of the second preset bit width and the The second linear relationship between the voltage output values.
  • a method for controlling the brightness of a display panel which includes: receiving a plurality of pixel values, wherein the bit width of each pixel value is a first preset bit width Data type conversion is performed on each of the pixel values to obtain a plurality of pixel values of a second preset bit width, wherein the second preset bit width is higher than the first preset bit width; according to the The second preset bit width pixel value adjusts the voltage output value to control the screen brightness of the display panel.
  • an apparatus for controlling the brightness of a display panel includes: an image processor that outputs a plurality of pixel values of the display panel, wherein the bit width of each pixel value is Is the first preset bit width; the digital gamma corrector is configured to perform data type conversion on the multiple pixel values to obtain multiple pixel values of the second preset bit width, wherein the second preset bit The width is higher than the first preset bit width; the Demura module is configured to correct the pixel value of the second preset bit width to determine the voltage output value of each sub-pixel in the display panel; a digital-to-analog conversion module, It is set to adjust the voltage output value to control the screen brightness of the display panel.
  • the first preset bit width is greater than or equal to 8 bits, and the second preset bit width is greater than or equal to 11 bits.
  • the digital gamma corrector includes: a conversion module configured to perform data type conversion on each pixel value by a preset formula to obtain multiple pixel values of the second preset bit width,
  • the device for controlling the brightness of the display panel further includes: a reservation module configured to perform data type conversion on each of the pixel values to obtain multiple pixel values with a second preset bit width in advance.
  • the brightness adjustment sets a reserved conversion range, wherein the reserved conversion range is set to adjust the maximum brightness of the display panel.
  • the device for controlling the brightness of the display panel further includes: a determining module configured to determine the pixel values of the second preset bit width by performing data type conversion on each of the pixel values A second linear relationship between a plurality of pixel values of a second preset bit width and the voltage output value.
  • a determining module configured to determine the pixel values of the second preset bit width by performing data type conversion on each of the pixel values A second linear relationship between a plurality of pixel values of a second preset bit width and the voltage output value.
  • a storage medium is also provided, the storage medium is configured to store a program, wherein when the program is executed by a processor, the device where the storage medium is located controls any one of the above The control method of the brightness of the display panel.
  • a processor is also provided, the processor is configured to run a program, wherein the method for controlling the brightness of the display panel described in any one of the above is executed when the program is running.
  • multiple pixel values processed by the image processor are acquired, where the bit width of each pixel value is the first preset bit width, and the data type conversion is performed on each pixel value to obtain the second preset bit width.
  • the voltage output value is the first linear relationship between the voltage output value and the screen brightness of the display panel, and the voltage output value is adjusted to control the screen brightness of the display panel.
  • the bit width of the pixel value can be adjusted to achieve the purpose of accurately determining the voltage output value, thereby adjusting the screen brightness of the display panel, achieving the effect of improving the compensation accuracy of the screen brightness of the display panel, and solving related problems.
  • the grayscale compensation voltage is adjusted to eliminate the uneven brightness of the display panel, due to insufficient compensation accuracy, the technical problem of users' interest in using the display panel is reduced.
  • FIG. 1 is a flowchart of a method for controlling brightness of a display panel according to an embodiment of the present invention
  • Fig. 2 is a schematic diagram of another optional device for controlling the brightness of a display panel according to an embodiment of the present invention.
  • an embodiment of a method for controlling the brightness of a display panel is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and Although the logical sequence is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than here.
  • Mura indicating that the display brightness is uneven, causing various traces.
  • Demura eliminate the display Mura, make the screen brightness uniform, in the implementation, you can first let the panel display the grayscale image, use various capacitive coupling devices to shoot the screen, obtain the brightness value of each pixel in the panel, and adjust the pixels in the Mura area The grayscale value or voltage of the point.
  • GPU Graphics Processing Unit
  • graphics processor is a microprocessor that specializes in image operations on the terminal.
  • Pixel, pixel Pixel, pixel.
  • DAC Digital Analog Converter
  • the following embodiments of the present invention can be set in various display panels.
  • the type and model of the display panel are not specifically limited.
  • the display panels can include, but are not limited to: LED display, PC display, flat panel display
  • various defects and traces due to uneven brightness of the display panel can be eliminated.
  • the adjusted voltage accuracy is insufficient
  • the screen brightness of the display panel can be adjusted by the voltage control current. Since the adjusted voltage and the screen brightness have a linear relationship, the screen brightness of the display panel can be directly adjusted, thereby improving the accuracy of compensation and achieving brightness Uniformity adjustment.
  • Fig. 1 is a flowchart of a method for controlling the brightness of a display panel according to an embodiment of the present invention. As shown in Fig. 1, the method includes the following steps:
  • Step S102 Obtain multiple pixel values processed by the image processor, where the bit width of each pixel value is a first preset bit width;
  • Step S104 Perform data type conversion on each pixel value to obtain multiple pixel values of a second preset bit width, where the second preset bit width is higher than the first preset bit width;
  • Step S106 the pixel value of the second preset bit width is sent to the digital-analog conversion module to determine the voltage output value of each sub-pixel of the display panel, wherein the voltage output value has a first linear relationship with the screen brightness of the display panel ;
  • Step S108 adjusting the voltage output value to control the screen brightness of the display panel.
  • multiple pixel values processed by the image processor can be obtained, wherein the bit width of each pixel value is the first preset bit width, and the data type conversion is performed on each pixel value to obtain the second preset bit Wide multiple pixel values, where the second preset bit width is higher than the first preset bit width, and the pixel value of the second preset bit width is sent to the digital-analog conversion module to determine the voltage of each sub-pixel of the display panel Output value, where the voltage output value and the screen brightness of the display panel are in a first linear relationship, and the voltage output value is adjusted to control the screen brightness of the display panel.
  • the bit width of the pixel value can be adjusted to achieve the purpose of accurately determining the voltage output value, so as to adjust the screen brightness of the display panel, and achieve the effect of improving the compensation accuracy of the screen brightness of the display panel, thereby solving related problems.
  • the grayscale compensation voltage is adjusted to eliminate the uneven brightness of the display panel, due to insufficient compensation accuracy, the technical problem of users' interest in using the display panel is reduced.
  • Step S102 Obtain a plurality of pixel values processed by the image processor, wherein the bit width of each pixel value is a first preset bit width.
  • the pixels obtained from the display panel can be processed by a graphics processing unit (GPU) or an application processor (AP), and each pixel on the display panel can be output by the graphics processing unit (GPU) or application processor (AP).
  • the pixel value corresponding to the pixel can also output the grayscale value corresponding to each pixel on the display panel.
  • the first preset bit width is greater than or equal to 8 bits.
  • Step S104 Perform data type conversion on each pixel value to obtain multiple pixel values with a second preset bit width, where the second preset bit width is higher than the first preset bit width.
  • the second preset bit width is greater than or equal to 11 bits.
  • the first preset bit width is 8 bits
  • the second preset bit width is 11 bits to describe the embodiments of the present invention in detail, including the preset formulas involved in the following embodiments and the content involved in Table 1.
  • the invention can also be described in detail with other bit widths.
  • performing data type conversion on each pixel value to obtain multiple pixel values with a second preset bit width includes: performing data type conversion on each pixel value through a preset formula to obtain the first 2.
  • Multiple pixel values with preset bit widths, where the preset formula is: DGC out (pixel in/255) ⁇ gamma *2047, where pixel in is the pixel value processed by the image processor, and DGC out is The pixel value obtained by data type conversion, gamma is the parameter.
  • the gamma in the foregoing preset formula may be 2.2.
  • the method of compressing first and decompressing in real time may be adopted to obtain the corresponding value.
  • the bit width of the pixel value can be increased, and the corresponding voltage output value can be determined by using the linear relationship between the second preset bit width and the voltage output value.
  • Table 1 shows the mapping relationship between the pixel value calculated by the preset formula and the screen brightness value of the corresponding display panel.
  • the specific Table 1 is as follows:
  • the method when the data type conversion is performed on each pixel value to obtain multiple pixel values of the second preset bit width, the method further includes: setting a reserved conversion range for brightness adjustment in advance, where the reserved The conversion range is set to adjust the maximum brightness of the display panel.
  • the reserved conversion range can be defined as margin, and the maximum brightness adjustment is facilitated by the reserved conversion range.
  • the adjustment of the brightness of the display panel can be expanded through the reserved conversion range, that is, it is not limited to the screen display brightness corresponding to 2047.
  • the method further includes: determining multiple pixel values of the second preset bit width and voltage output The second linear relationship between the values.
  • Step S106 the pixel value of the second preset bit width is sent to the digital-analog conversion module to determine the voltage output value of each sub-pixel of the display panel, wherein the voltage output value has a first linear relationship with the screen brightness of the display panel .
  • Step S108 adjusting the voltage output value to control the screen brightness of the display panel.
  • the analog current when adjusting the voltage output value, may be directly adjusted to directly adjust the brightness of each sub-pixel of the display panel.
  • the bit width of the pixel value can be increased, and the correlation between the increased pixel bit width and the voltage output value, and the screen brightness of the display panel , Adjust the screen brightness of the display panel to improve the accuracy of the screen brightness.
  • Fig. 2 is a schematic diagram of another optional display panel brightness control device according to an embodiment of the present invention. As shown in Fig. 2, the device includes: an image processor 21, a digital gamma corrector 23, a Demura module 25, and a digital Analog conversion module 27, of which,
  • the image processor 21 outputs multiple pixel values of the display panel, where the bit width of each pixel value is the first preset bit width;
  • the digital gamma corrector 23 is configured to perform data type conversion on multiple pixel values to obtain multiple pixel values with a second preset bit width, where the second preset bit width is higher than the first preset bit width;
  • the Demura module 25 is configured to correct the pixel value of the second preset bit width to determine the voltage output value of each sub-pixel in the display panel;
  • the digital-to-analog conversion module 27 is configured to adjust the voltage output value to control the screen brightness of the display panel.
  • the above-mentioned control device for the brightness of the display panel outputs multiple pixel values of the display panel through the image processor 21, wherein the bit width of each pixel value is the first preset bit width, and the digital gamma corrector 23 is used to Data type conversion is performed on the pixel value to obtain a plurality of pixel values with a second preset bit width, where the second preset bit width is higher than the first preset bit width, and the Demura module 25 performs the processing on the pixels with the second preset bit width.
  • the value is corrected to determine the voltage output value of each sub-pixel in the display panel, and the digital-to-analog conversion module 27 adjusts the voltage output value to control the screen brightness of the display panel.
  • the bit width of the pixel value can be adjusted to achieve the purpose of accurately determining the voltage output value, so as to adjust the screen brightness of the display panel, and achieve the effect of improving the compensation accuracy of the screen brightness of the display panel, thereby solving related problems.
  • the grayscale compensation voltage is adjusted to eliminate the uneven brightness of the display panel, due to insufficient compensation accuracy, the technical problem of users' interest in using the display panel is reduced.
  • the first preset bit width is greater than or equal to 8 bits, and the second preset bit width is greater than or equal to 11 bits.
  • the device for controlling the brightness of the display panel further includes: a reserve module configured to perform a data type conversion on each pixel value to obtain multiple pixel values of the second preset bit width, and set one brightness adjustment in advance The reserved conversion range, where the reserved conversion range is set to adjust the maximum brightness of the display panel.
  • a reserve module configured to perform a data type conversion on each pixel value to obtain multiple pixel values of the second preset bit width, and set one brightness adjustment in advance The reserved conversion range, where the reserved conversion range is set to adjust the maximum brightness of the display panel.
  • the device for controlling the brightness of the display panel further includes: a determining module configured to determine the second preset bit width when the data type conversion is performed on each pixel value to obtain multiple pixel values of the second preset bit width The second linear relationship between the pixel values and the voltage output value.
  • a storage medium is also provided, the storage medium is configured to store a program, wherein the program, when executed by the processor, controls the device where the storage medium is located to perform any one of the above-mentioned display panel brightness control method.
  • a processor is also provided, the processor is configured to run a program, wherein any one of the foregoing method for controlling the brightness of the display panel is executed when the program is running.
  • the device for controlling the brightness of the display panel may also include a processor and a memory.
  • the image processor 21, the digital gamma corrector 23, the Demura module 25, the digital-to-analog conversion module 27, etc. are all stored in the memory as a program unit, and are processed by The processor executes the above program units stored in the memory to realize the corresponding functions.
  • the above-mentioned processor contains a kernel, and the kernel calls the corresponding program unit from the memory.
  • the kernel can be set to one or more, and the voltage output value can be adjusted by adjusting the kernel parameters to control the screen brightness of the display panel.
  • the aforementioned memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM), and the memory includes at least A memory chip.
  • RAM random access memory
  • ROM read-only memory
  • flash RAM flash memory
  • the embodiment of the present invention provides a device.
  • the device includes a processor, a memory, and a program stored on the memory and running on the processor.
  • the processor executes the program, the following steps are implemented: Obtain a plurality of pixels processed by an image processor Value, where the bit width of each pixel value is the first preset bit width; data type conversion is performed on each pixel value to obtain multiple pixel values of the second preset bit width, where the second preset bit width Higher than the first preset bit width; the pixel value of the second preset bit width is sent to the digital-to-analog conversion module to determine the voltage output value of each sub-pixel of the display panel, where the voltage output value is compared with the screen brightness of the display panel The first linear relationship is present; the voltage output value is adjusted to control the screen brightness of the display panel.
  • the first preset bit width is greater than or equal to 8 bits, and the second preset bit width is greater than or equal to 11 bits.
  • the following steps may also be implemented: when the data type conversion is performed on each pixel value to obtain multiple pixel values of the second preset bit width, a reserved set for brightness adjustment is set in advance. Conversion range, where the reserved conversion range is set to adjust the maximum brightness of the display panel.
  • the following steps may also be implemented: when the data type conversion is performed on each pixel value to obtain multiple pixel values of the second preset bit width, determining the second preset bit width A second linear relationship between the pixel values and the voltage output value.
  • This application also provides a computer program product, which when executed on a data processing device, is suitable for executing a program that initializes the following method steps: acquiring multiple pixel values processed by an image processor, wherein the value of each pixel The bit width is a first preset bit width; data type conversion is performed on each pixel value to obtain a plurality of pixel values of a second preset bit width, where the second preset bit width is higher than the first preset bit width; The pixel value of the second preset bit width is sent to the digital-analog conversion module to determine the voltage output value of each sub-pixel of the display panel, where the voltage output value has a first linear relationship with the screen brightness of the display panel; adjust the voltage Output the value to control the screen brightness of the display panel.
  • the disclosed technical content may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit may be a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may Integration into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, units or modules, and may be in electrical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or software function unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the technical solution of the present invention essentially or part of the contribution to the existing technology or all or part of the technical solution can be embodied in the form of a software product, the computer software product is stored in a storage medium , Including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the aforementioned storage media include: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program code .
  • the solutions provided in the embodiments of this application can be used to adjust the screen brightness of the display panel in real time.
  • the technical solutions provided in the embodiments of this application can be applied to touch display devices such as display panels (such as OLEDs) and touch screens.
  • touch display devices such as display panels (such as OLEDs) and touch screens.
  • the screen brightness of the display panel can be adjusted in real time.
  • the bit width of the pixel value By adjusting the bit width of the pixel value, the purpose of accurately determining the voltage output value is achieved, so as to adjust the screen brightness of the display panel and achieve the compensation of increasing the screen brightness of the display panel.
  • the type conversion of each pixel value can be directly performed, and then the pixel value of high bit width is output, and then the voltage output value of each module of each display panel is determined.

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  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
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Abstract

一种显示面板亮度的控制方法及装置、存储介质、处理器。该方法包括：获取经过图像处理器处理的多个像素值，其中，每个像素值的位宽为第一预设位宽（S102）；对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，第二预设位宽高于第一预设位宽（S104）；将第二预设位宽的像素值送入数字模拟转换模块，以确定显示面板各子像素的电压输出数值，其中，电压输出数值与显示面板的屏幕亮度之间呈第一线性关系（S106）；调整电压输出数值，以控制显示面板的屏幕亮度（S108）。

Description

显示面板亮度的控制方法及装置、存储介质、处理器
本申请要求于2019年01月17日提交中国专利局、申请号为201910044576.0、申请名称“显示面板亮度的控制方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及显示面板控制领域，具体而言，涉及一种显示面板亮度的控制方法及装置、存储介质、处理器。
背景技术
在相关技术中，显示面板常常会出现亮度不均匀、造成各种显示痕迹的现象，即Mura现象，这种现象出现的原因有多种，其中一种是由于显示面板中的电路布局线路过程，导致输入信号衰减不一致，从而导致显示亮度出现差异，而如果要消除Mura，当前的方式，一般是通过调整显示的灰阶值来调整显示的亮度，达到显示面板的显示亮度均匀的效果，但是这种方式在调整灰阶补偿电压时，往往会出现由于灰阶值计算不准确，数值量大导致补偿电压的数值错误，进而导致显示的亮度不均匀的情况发生，也会使得亮度补偿精度不够，导致用户在观看显示面板上的显示内容时，往往会出现疲劳度加重，也降低了用户使用显示面板时的兴趣。
针对上述的问题，目前尚未提出有效的解决方案。
发明内容
本发明实施例提供了一种显示面板亮度的控制方法及装置、存储介质、处理器，以至少解决相关技术中通过调整灰阶补偿电压来消除显示面板的亮度不均匀的现象时，会由于补偿精度不够，降低了用户使用显示面板兴趣的技术问题。
根据本发明实施例的一个方面，提供了一种显示面板亮度的控制方法，包括：获取经过图像处理器处理的多个像素值，其中，每个所述像素值的位宽为第一预设位宽；对每个所述像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，所述第二预设位宽高于所述第一预设位宽；将所述第二预设位宽的像素值送入数字模拟转换模块，以确定显示面板各子像素的电压输出数值，其中，所述电压输出数值与所述 显示面板的屏幕亮度之间呈第一线性关系；调整所述电压输出数值，以控制显示面板的屏幕亮度。
可选地，所述第一预设位宽大于等于8bit，所述第二预设位宽大于等于11bit。
可选地，对每个所述像素值进行数据类型转换，得到第二预设位宽的多个像素值包括：通过预设公式对每个所述像素值进行数据类型转换，以得到所述第二预设位宽的多个像素值，其中，所述预设公式为：DGC out＝(pixel in/255)^ gamma*2047，其中，pixel in为经过图像处理器处理的像素值，DGC out为经过数据类型转换得到的像素值，gamma为参数。
可选地，在对每个所述像素值进行数据类型转换，得到第二预设位宽的多个像素值时，还包括：预先对亮度调整设置一个预留转换范围，其中，所述预留转换范围设置为对所述显示面板的最大亮度进行调整。
可选地，在对每个所述像素值进行数据类型转换，得到第二预设位宽的多个像素值时，还包括：确定所述第二预设位宽的多个像素值与所述电压输出数值之间的第二线性关系。
根据本发明实施例的另一方面，还提供了一种显示面板亮度的控制方法，其中，包括：接收多个像素值，其中，每个所述像素值的位宽为第一预设位宽；对每个所述像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，所述第二预设位宽高于所述第一预设位宽；根据所述第二预设位宽的像素值，调整电压输出数值，以控制显示面板的屏幕亮度。
根据本发明实施例的另一方面，还提供了一种显示面板亮度的控制装置，该装置包括：图像处理器，输出显示面板的多个像素值，其中，每个所述像素值的位宽为第一预设位宽；数字伽马校正器，设置为对所述多个像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，所述第二预设位宽高于所述第一预设位宽；Demura模块，设置为对所述第二预设位宽的像素值进行校正，以确定显示面板中各子像素的电压输出数值；数字模拟转换模块，设置为调整所述电压输出数值，以控制显示面板的屏幕亮度。
可选地，所述第一预设位宽大于等于8bit，所述第二预设位宽大于等于11bit。
可选地，所述数字伽马校正器包括：转换模块，设置为通过预设公式对每个所述像素值进行数据类型转换，以得到所述第二预设位宽的多个像素值，其中，所述预设 公式为：DGC out＝(pixel in/255)^ gamma*2047，其中，pixel in为经过图像处理器处理的像素值，DGC out为经过数据类型转换得到的像素值，gamma为参数。
可选地，所述显示面板亮度的控制装置还包括：预留模块，设置为在对每个所述像素值进行数据类型转换，得到第二预设位宽的多个像素值时，预先对亮度调整设置一个预留转换范围，其中，所述预留转换范围设置为对所述显示面板的最大亮度进行调整。
可选地，所述显示面板亮度的控制装置还包括：确定模块，设置为在对每个所述像素值进行数据类型转换，得到第二预设位宽的多个像素值时，确定所述第二预设位宽的多个像素值与所述电压输出数值之间的第二线性关系。
根据本发明实施例的另一方面，还提供了一种存储介质，所述存储介质设置为存储程序，其中，所述程序在被处理器执行时控制所述存储介质所在设备执行上述任意一项所述的显示面板亮度的控制方法。
根据本发明实施例的另一方面，还提供了一种处理器，所述处理器设置为运行程序，其中，所述程序运行时执行上述任意一项所述的显示面板亮度的控制方法。
在本发明实施例中，获取经过图像处理器处理的多个像素值，其中，每个像素值的位宽为第一预设位宽，对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，第二预设位宽高于第一预设位宽，将第二预设位宽的像素值送入数字模拟转换模块，以确定显示面板各子像素的电压输出数值，其中，电压输出数值与显示面板的屏幕亮度之间呈第一线性关系，调整电压输出数值，以控制显示面板的屏幕亮度。在该实施例中，可以通过调整像素值的位宽，来达到精确确定电压输出数值的目的，从而调整显示面板的屏幕亮度，达到了提高显示面板的屏幕亮度的补偿精度的效果，进而解决相关技术中通过调整灰阶补偿电压来消除显示面板的亮度不均匀的现象时，会由于补偿精度不够，降低了用户使用显示面板兴趣的技术问题。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明设置为解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的显示面板亮度的控制方法的流程图；
图2根据本发明实施例的另一种可选的显示面板亮度的控制装置的示意图。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是设置为区别类似的对象，而不必设置为描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
根据本发明实施例，提供了一种显示面板亮度的控制方法实施例，需要说明的是，在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行，并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
为便于用户理解本发明，下面对本发明各实施例中涉及的部分术语或名词做出解释：
Mura，指示显示器亮度不均匀，造成各种痕迹的现象。
Demura，消除显示器Mura，使得画面亮度均匀，在实现时，可以先让面板显示灰阶画面，用各种电容耦合器件拍摄屏幕，获取面板中各像素点的亮度值，并调整在Mura区域的像素点的灰阶值或电压。
GPU，Graphics Processing Unit，图形处理器，是一种专门在终端上进行图像运算工作的微处理器。
AP，Application Processor，应用处理器。
Analog，模拟信号。
Pixel，像素。
DAC，Digital Analog Convertor，数字模拟转换器，设置为将数字信号转化为模拟信号，以电流、电压或电荷的方式输出。
Panel，显示面板。
DGC，Digital Gamma Correction，数字gamma校正器。
本发明下述各项实施例可以应设置为各种显示面板中，对于显示面板的类型和型号不做具体限定，显示面板可以包括但不限于：LED显示屏、PC机显示屏、平板显示屏等，本发明各项实施例中可以对由于显示面板的亮度不均匀，出现各种缺陷和痕迹的现象进行消除，相对于传统的通过调整灰阶值来补偿电压的方式，调整的电压精度不足的情况，本发明中可以通过电压控制电流调控显示面板的屏幕亮度，由于调整的电压与屏幕亮度之间呈线性关系，则可以显示面板的屏幕亮度直接进行调整，从而提升补偿的精度，实现亮度均匀性调整。下面对各个实施例进行详细描述。
实施例一
图1是根据本发明实施例的显示面板亮度的控制方法的流程图，如图1所示，该方法包括如下步骤：
步骤S102，获取经过图像处理器处理的多个像素值，其中，每个像素值的位宽为第一预设位宽；
步骤S104，对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，第二预设位宽高于第一预设位宽；
步骤S106，将第二预设位宽的像素值送入数字模拟转换模块，以确定显示面板各子像素的电压输出数值，其中，电压输出数值与显示面板的屏幕亮度之间呈第一线性关系；
步骤S108，调整电压输出数值，以控制显示面板的屏幕亮度。
通过上述步骤，可以获取经过图像处理器处理的多个像素值，其中，每个像素值的位宽为第一预设位宽，对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，第二预设位宽高于第一预设位宽，将第二预设位宽的像素值送入数字模拟转换模块，以确定显示面板各子像素的电压输出数值，其中，电压输出数值与显示面板的屏幕亮度之间呈第一线性关系，调整电压输出数值，以控制显示面板的屏幕亮度。在该实施例中，可以通过调整像素值的位宽，来达到精确确定电压输出数值的目的，以调整显示面板的屏幕亮度，达到了提高显示面板的屏幕亮度的补偿精度的效果，进而解决相关技术中通过调整灰阶补偿电压来消除显示面板的亮度不均匀的现象时，会由于补偿精度不够，降低了用户使用显示面板兴趣的技术问题。
下面对上述各个步骤进行说明。
步骤S102，获取经过图像处理器处理的多个像素值，其中，每个像素值的位宽为第一预设位宽。
作为本发明一可选的示例，可以通过图形处理器(GPU)或应用处理器(AP)处理显示面板得到的像素，通过图形处理器(GPU)或应用处理器(AP)输出显示面板上各个像素对应的像素值，当然，本发明中图形处理器(GPU)或应用处理器(AP)还可以输出显示面板上各个像素对应的灰阶值。
可选的，第一预设位宽大于等于8bit。
步骤S104，对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，第二预设位宽高于第一预设位宽。
第二预设位宽大于等于11bit。
下述实施方式中，以第一预设位宽为8bit，第二预设位宽为11bit对本发明实施例进行详细说明，包括下述实施方式中涉及的预设公式和表1涉及的内容。当然，本发明中还可以以其它的位宽对本发明进行详细说明。
作为本发明一可选的示例，对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值包括：通过预设公式对每个像素值进行数据类型转换，以得到第二预设位宽的多个像素值，其中，预设公式为：DGC out＝(pixel in/255)^ gamma*2047，其中，pixel in为经过图像处理器处理的像素值，DGC out为经过数据类型转换得到的像素值，gamma为参数。
可选的，上述预设公式中的gamma可以为2.2。在本发明实施例中，由于gamma数据量较大，可以采用先压缩，并实时解压缩的方式，来得到相应的数值。
通过上述预设公式的处理，可以将像素值的位宽提高，进而利用该第二预设位宽与电压输出数值之间的线性关系，确定出相应的电压输出数值。
下述表1中示出了通过预设公式计算的像素值以及对应的显示面板的屏幕亮度值之间的映射关系，具体表1如下：
表1
Figure PCTCN2019079548-appb-000001
Figure PCTCN2019079548-appb-000002
在本发明实施例中，在对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值时，还包括：预先对亮度调整设置一个预留转换范围，其中，预留转换范围设置为对显示面板的最大亮度进行调整。
在本申请中，预留转换范围可以定义为margin，通过预留转换范围便于对最大亮度调整，Reference亮度(logL)计算公式为ref_logL＝gamma_r*log(2047/2047),log(2047/2047)＝0；若没有预留转换范围存在则无法对最大亮度进行调整。通过该预留转换范围可以扩大显示面板的亮度的调整，即不限于2047所对应的屏幕显示亮度。
另一种可选的，在对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值时，还包括：确定第二预设位宽的多个像素值与电压输出数值之间的第二线性关系。
即第二预设位宽的像素值、电压输出数值和显示面板的屏幕亮度之间会有相对应的线性关系，通过该线性关系可以直接对显示面板的屏幕亮度进行调整。
步骤S106，将第二预设位宽的像素值送入数字模拟转换模块，以确定显示面板各子像素的电压输出数值，其中，电压输出数值与显示面板的屏幕亮度之间呈第一线性关系。
步骤S108，调整电压输出数值，以控制显示面板的屏幕亮度。
可选的，在调整电压输出数值时，可以是直接调整模拟电流，直接对显示面板的各个子像素的亮度进行调整。
通过上述实施例，可以在图像处理器处理得到显示面板的像素值后，提高该像素值的位宽，并通过提高后的像素位宽与电压输出数值、显示面板的屏幕亮度之间的关联关系，对显示面板的屏幕亮度进行调整，提高了屏幕亮度的精度。
下面通过另一种实施例来说明本发明，下述显示面板亮度的控制装置可以实现上述的各个步骤。
实施例二
图2根据本发明实施例的另一种可选的显示面板亮度的控制装置的示意图，如图2所示，该装置包括：图像处理器21，数字伽马校正器23，Demura模块25，数字模拟转换模块27，其中，
图像处理器21，输出显示面板的多个像素值，其中，每个像素值的位宽为第一预设位宽；
数字伽马校正器23，设置为对多个像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，第二预设位宽高于第一预设位宽；
Demura模块25，设置为对第二预设位宽的像素值进行校正，以确定显示面板中各子像素的电压输出数值；
数字模拟转换模块27，设置为调整电压输出数值，以控制显示面板的屏幕亮度。
上述显示面板亮度的控制装置，通过图像处理器21，输出显示面板的多个像素值，其中，每个像素值的位宽为第一预设位宽，通过数字伽马校正器23对多个像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，第二预设位宽高于第一预设位宽，通过Demura模块25对第二预设位宽的像素值进行校正，以确定显示面板中各子像素的电压输出数值，通过数字模拟转换模块27调整电压输出数值，以控制显示面板的屏幕亮度。在该实施例中，可以通过调整像素值的位宽，来达到精确确定电压输出数值的目的，以调整显示面板的屏幕亮度，达到了提高显示面板的屏幕亮度的补偿精度的效果，进而解决相关技术中通过调整灰阶补偿电压来消除显示面板的亮度不均匀的现象时，会由于补偿精度不够，降低了用户使用显示面板兴趣的技术问题。
可选地，第一预设位宽大于等于8bit，第二预设位宽大于等于11bit。
可选地，数字伽马校正器包括：转换模块，设置为通过预设公式对每个像素值进行数据类型转换，以得到第二预设位宽的多个像素值，其中，预设公式为： DGC out＝(pixel in/255)^ gamma*2047，其中，pixel in为经过图像处理器处理的像素值，DGC out为经过数据类型转换得到的像素值，gamma为参数。
可选地，显示面板亮度的控制装置还包括：预留模块，设置为在对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值时，预先对亮度调整设置一个预留转换范围，其中，预留转换范围设置为对显示面板的最大亮度进行调整。
可选地，显示面板亮度的控制装置还包括：确定模块，设置为在对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值时，确定第二预设位宽的多个像素值与电压输出数值之间的第二线性关系。
根据本发明实施例的另一方面，还提供了一种存储介质，存储介质设置为存储程序，其中，程序在被处理器执行时控制存储介质所在设备执行上述任意一项的显示面板亮度的控制方法。
根据本发明实施例的另一方面，还提供了一种处理器，处理器设置为运行程序，其中，程序运行时执行上述任意一项的显示面板亮度的控制方法。
述的显示面板亮度的控制装置还可以包括处理器和存储器，上述图像处理器21，数字伽马校正器23，Demura模块25，数字模拟转换模块27等均作为程序单元存储在存储器中，由处理器执行存储在存储器中的上述程序单元来实现相应的功能。
上述处理器中包含内核，由内核去存储器中调取相应的程序单元。内核可以设置一个或以上，通过调整内核参数来调整电压输出数值，以控制显示面板的屏幕亮度。
上述存储器可能包括计算机可读介质中的非永久性存储器，随机存取存储器(RAM)和/或非易失性内存等形式，如只读存储器(ROM)或闪存(flash RAM)，存储器包括至少一个存储芯片。
本发明实施例提供了一种设备，设备包括处理器、存储器及存储在存储器上并可在处理器上运行的程序，处理器执行程序时实现以下步骤：获取经过图像处理器处理的多个像素值，其中，每个像素值的位宽为第一预设位宽；对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，第二预设位宽高于第一预设位宽；将第二预设位宽的像素值送入数字模拟转换模块，以确定显示面板各子像素的电压输出数值，其中，电压输出数值与显示面板的屏幕亮度之间呈第一线性关系；调整电压输出数值，以控制显示面板的屏幕亮度。
可选地，第一预设位宽大于等于8bit，第二预设位宽大于等于11bit。
可选地，上述处理器执行程序时，还可以实现以下步骤：通过预设公式对每个像素值进行数据类型转换，以得到第二预设位宽的多个像素值，其中，预设公式为：DGCout＝(pixel in/255)^ gamma*2047，其中，pixel in为经过图像处理器处理的像素值，DGC out为经过数据类型转换得到的像素值，gamma为参数。
可选地，上述处理器执行程序时，还可以实现以下步骤：在对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值时，预先对亮度调整设置一个预留转换范围，其中，预留转换范围设置为对显示面板的最大亮度进行调整。
可选地，上述处理器执行程序时，还可以实现以下步骤：在对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值时，确定第二预设位宽的多个像素值与电压输出数值之间的第二线性关系。
本申请还提供了一种计算机程序产品，当在数据处理设备上执行时，适于执行初始化有如下方法步骤的程序：获取经过图像处理器处理的多个像素值，其中，每个像素值的位宽为第一预设位宽；对每个像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，第二预设位宽高于第一预设位宽；将第二预设位宽的像素值送入数字模拟转换模块，以确定显示面板各子像素的电压输出数值，其中，电压输出数值与显示面板的屏幕亮度之间呈第一线性关系；调整电压输出数值，以控制显示面板的屏幕亮度。
上述本发明实施例序号仅仅为了描述，不代表实施例的优劣。
在本发明的上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中，应该理解到，所揭露的技术内容，可通过其它的方式实现。其中，以上所描述的装置实施例仅仅是示意性的，例如所述单元的划分，可以为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，单元或模块的间接耦合或通信连接，可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。
工业实用性
本申请实施例提供的方案可以用于实时调整显示面板的屏幕亮度，在本申请实施例提供的技术方案中，可以应用于显示面板(如OLED等)、触摸屏等触控显示设备中，在显示面板实际运行时，能够实时调整显示面板的屏幕亮度，通过调整像素值的位宽，来达到精确确定电压输出数值的目的，从而调整显示面板的屏幕亮度，达到了提高显示面板的屏幕亮度的补偿精度的效果，，进而解决相关技术中通过调整灰阶补偿电压来消除显示面板的亮度不均匀的现象时，会由于补偿精度不够，降低了用户使用显示面板兴趣的技术问题。本申请实施例可以直接对每个像素值的进行类型转换，然后输出高位宽的像素值，进而确定出每个显示面板各个模块的电压输出数值。

Claims (13)

  1. 一种显示面板亮度的控制方法，其中，包括：
    获取经过图像处理器处理的多个像素值，其中，每个所述像素值的位宽为第一预设位宽；
    对每个所述像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，所述第二预设位宽高于所述第一预设位宽；
    将所述第二预设位宽的像素值送入数字模拟转换模块，以确定显示面板各子像素的电压输出数值，其中，所述电压输出数值与所述显示面板的屏幕亮度之间呈第一线性关系；
    调整所述电压输出数值，以控制显示面板的屏幕亮度。
  2. 根据权利要求1所述的控制方法，其中，所述第一预设位宽大于等于8bit，所述第二预设位宽大于等于11bit。
  3. 根据权利要求1所述的控制方法，其中，对每个所述像素值进行数据类型转换，得到第二预设位宽的多个像素值包括：
    通过预设公式对每个所述像素值进行数据类型转换，以得到所述第二预设位宽的多个像素值，其中，所述预设公式为：
    Figure PCTCN2019079548-appb-100001
    其中，pixel in为经过图像处理器处理的像素值，DGC out为经过数据类型转换得到的像素值，gamma为参数。
  4. 根据权利要求1所述的控制方法，其中，在对每个所述像素值进行数据类型转换，得到第二预设位宽的多个像素值时，还包括：
    预先对亮度调整设置一个预留转换范围，其中，所述预留转换范围设置为对所述显示面板的最大亮度进行调整。
  5. 根据权利要求1所述的控制方法，其中，在对每个所述像素值进行数据类型转换，得到第二预设位宽的多个像素值时，还包括：
    确定所述第二预设位宽的多个像素值与所述电压输出数值之间的第二线性关系。
  6. 一种显示面板亮度的控制方法，其中，包括：
    接收多个像素值，其中，每个所述像素值的位宽为第一预设位宽；
    对每个所述像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，所述第二预设位宽高于所述第一预设位宽；
    根据所述第二预设位宽的像素值，调整电压输出数值，以控制显示面板的屏幕亮度。
  7. 一种显示面板亮度的控制装置，其中，该装置包括：
    图像处理器，输出显示面板的多个像素值，其中，每个所述像素值的位宽为第一预设位宽；
    数字伽马校正器，设置为对所述多个像素值进行数据类型转换，得到第二预设位宽的多个像素值，其中，所述第二预设位宽高于所述第一预设位宽；
    Demura模块，设置为对所述第二预设位宽的像素值进行校正，以确定显示面板中各子像素的电压输出数值；
    数字模拟转换模块，设置为调整所述电压输出数值，以控制显示面板的屏幕亮度。
  8. 根据权利要求7所述的控制装置，其中，所述第一预设位宽大于等于8bit，所述第二预设位宽大于等于11bit。
  9. 根据权利要求7所述的控制装置，其中，所述数字伽马校正器包括：
    转换模块，设置为通过预设公式对每个所述像素值进行数据类型转换，以得到所述第二预设位宽的多个像素值，其中，所述预设公式为：
    Figure PCTCN2019079548-appb-100002
    其中，pixel in为经过图像处理器处理的像素值，DGC out为经过数据类型转换得到的像素值，gamma为参数。
  10. 根据权利要求7所述的控制装置，其中，控制装置还包括：
    预留模块，设置为在对每个所述像素值进行数据类型转换，得到第二预设位宽的多个像素值时，预先对亮度调整设置一个预留转换范围，其中，所述预留转换范围设置为对所述显示面板的最大亮度进行调整。
  11. 根据权利要求7所述的控制装置，其中，控制装置还包括：
    确定模块，设置为在对每个所述像素值进行数据类型转换，得到第二预设位 宽的多个像素值时，确定所述第二预设位宽的多个像素值与所述电压输出数值之间的第二线性关系。
  12. 一种存储介质，其中，所述存储介质设置为存储程序，其中，所述程序在被处理器执行时控制所述存储介质所在设备执行权利要求1至5中任意一项所述的显示面板亮度的控制方法。
  13. 一种处理器，其中，所述处理器设置为运行程序，其中，所述程序运行时执行权利要求1至5中任意一项所述的显示面板亮度的控制方法。
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