WO2020150922A1 - 亮度补偿方法、显示组件和电子装置 - Google Patents

亮度补偿方法、显示组件和电子装置 Download PDF

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Publication number
WO2020150922A1
WO2020150922A1 PCT/CN2019/072836 CN2019072836W WO2020150922A1 WO 2020150922 A1 WO2020150922 A1 WO 2020150922A1 CN 2019072836 W CN2019072836 W CN 2019072836W WO 2020150922 A1 WO2020150922 A1 WO 2020150922A1
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Prior art keywords
brightness
monochrome
picture
monochromatic
adjustment value
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PCT/CN2019/072836
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English (en)
French (fr)
Inventor
郭星灵
张肖
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Shenzhen Royole Technologies Co Ltd
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Shenzhen Royole Technologies Co Ltd
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Priority to PCT/CN2019/072836 priority Critical patent/WO2020150922A1/zh
Priority to CN201980073513.6A priority patent/CN113272887A/zh
Publication of WO2020150922A1 publication Critical patent/WO2020150922A1/zh
Anticipated expiration legal-status Critical
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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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals

Definitions

  • This application relates to the field of display technology, and in particular to a brightness compensation method, a display assembly and an electronic device.
  • the related art display can be driven by a thin film transistor (TFT), and the luminous intensity of the display is affected by the voltage difference between the positive voltage input from the drain of the TFT and the data voltage input from the gate of the TFT.
  • TFT thin film transistor
  • the positive voltage input from the drain of the TFT will drop, resulting in a decrease in the brightness of the display.
  • the embodiments of the present application provide a brightness compensation method, a display assembly and an electronic device.
  • the brightness compensation method of the embodiment of the present application is used for a display component, the display component includes a plurality of pixels arranged in an array, and the brightness compensation method includes:
  • the display component of the embodiment of the present application includes a brightness compensation device and a plurality of pixels, the pixels are arranged in an array, the brightness compensation device includes a picture statistics module and a dynamic compensation module, and the picture statistics module is used to obtain color images and calculate The average gray level of the color picture; the dynamic compensation module is used to find the voltage adjustment value of each pixel in preset voltage adjustment data according to the average gray level, and output the voltage adjustment value to Each of said pixels.
  • the electronic device of the embodiment of the present application includes a main board and the display assembly of the above embodiment, and the main board is connected to the display assembly.
  • the brightness compensation method, display component and electronic device of the embodiments of the present application adjust the voltage of the pixel according to the average gray scale of the color screen, realize real-time brightness compensation according to the color screen, and overcome the brightness and brightness of each gray scale of the screen when the color screen is displayed.
  • the phenomenon of ideal brightness drifting makes each gray-scale brightness of the display component display ideal brightness that conforms to the optical characteristics of the human eye when displaying color images, thereby ensuring uniform gray-scale brightness transition and improving the optical quality of the display component.
  • FIG. 1 is a schematic diagram of modules of an electronic device according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of modules of a brightness compensation device according to an embodiment of the present application.
  • FIG. 3 is a schematic plan view of a pixel array of a display device according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a brightness compensation method according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a brightness compensation method according to another embodiment of the present application.
  • FIG. 6 is a schematic diagram of modules of a brightness compensation device according to another embodiment of the present application.
  • FIG. 7 is a schematic diagram of comparing the brightness adjustment value and the measured value of the brightness compensation method of the embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a brightness compensation method according to another embodiment of the present application.
  • FIG. 9 is a schematic diagram of the data flow of the brightness compensation method of the embodiment of the present application.
  • FIG. 10 is a schematic flowchart of a brightness compensation method according to still another embodiment of the present application.
  • FIG. 11 is a schematic diagram of modules of a brightness compensation device according to still another embodiment of the present application.
  • FIG. 12 is a schematic flowchart of a brightness compensation method according to another embodiment of the present application.
  • FIG. 13 is a schematic diagram of a monochrome brightness adjustment curve according to an embodiment of the present application.
  • FIG. 14 is a schematic diagram of data flow of a brightness compensation method according to another embodiment of the present application.
  • Electronic device 1000 display assembly 100, display screen 10, brightness compensation device 20, first determination module 21, search calculation unit 212, second determination module 22, picture statistics module 23, dynamic compensation module 24, first gamma control unit 242.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be mechanically connected, or electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction of two components relationship.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be mechanically connected, or electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction of two components relationship.
  • an embodiment of the present application provides an electronic device 1000.
  • the electronic device 1000 includes a main board 200 and a display assembly 100, and the main board 200 is connected to the display assembly 100.
  • the main board 200 can input corresponding image data signals to the display assembly 100.
  • the display component 100 can process and display the input image signal.
  • the electronic device 1000 of the embodiment of the present application includes, but is not limited to, electronic devices such as displays, mobile phones, tablet computers, notebook computers, e-books, televisions, and wearable smart devices.
  • the display assembly 100 includes a brightness compensation device 20 and a plurality of pixels.
  • the plurality of pixels are arranged in an array to form a pixel array 201.
  • the brightness compensation device 20 includes a picture statistics module 23 and a dynamic compensation module 24.
  • the picture statistics module 23 is used to obtain colors.
  • the dynamic compensation module 24 is used to find the voltage adjustment value of each pixel in the preset voltage adjustment data according to the average gray scale, and output the voltage adjustment value to each pixel.
  • the aforementioned array arrangement is not limited to the manner shown in the figure, and the array arrangement may mean that multiple pixels are arranged in rows and columns.
  • the display assembly 100 may include a display screen 10, which includes a plurality of pixels arranged in an array.
  • the brightness compensation method of the embodiment of the present application is used for the display component 100, the display component 100 includes a plurality of pixels arranged in an array, and the brightness compensation method includes:
  • Step S23 Obtain the color picture and calculate the average gray level of the color picture
  • Step S24 Find the voltage adjustment value of each pixel in the preset voltage adjustment data according to the average gray scale, and output the voltage adjustment value to each pixel.
  • the brightness compensation method, the display assembly 100 and the electronic device 1000 of the embodiments of the present application adjust the voltage of the pixels according to the average gray scale of the color screen, realize real-time brightness compensation according to the color screen, and overcome the gray scale of the screen when the color screen is displayed.
  • the phenomenon of the drift between the brightness and the ideal brightness enables the brightness of each gray scale of the display device 100 to display an ideal brightness that conforms to the optical characteristics of the human eye when displaying a color image, thereby ensuring uniform gray scale brightness transition and improving the optical quality of the display device 100.
  • the display assembly 100 displays a color picture
  • the color picture can be understood as more than one type of color. If the voltage of each pixel of the display component 100 is adjusted only when the display component 100 displays a single gray scale, it is easy to cause the brightness of the pixels below the average gray scale to be darker and higher than the average gray scale when displaying a color screen. The phenomenon that the brightness of the pixel is brighter, that is, the brightness of each gray scale of the screen and the ideal brightness drift when a color screen is displayed.
  • the color image when the color image is displayed, the color image is obtained and the average gray level of the color image is calculated, so as to realize the real-time adjustment of pixels according to the average gray level of the color image, which can slow down or even avoid the color image.
  • the gray-scale brightness and the ideal brightness drift thereby improving the display effect of the display assembly 100.
  • one or more pixels may constitute a pixel unit, for example, two pixels constitute a pixel unit.
  • the two pixels may be a red pixel and a green pixel.
  • three pixels constitute one pixel unit, and in such a pixel unit, the three pixels may be red pixels, green pixels, and blue pixels.
  • step S23 the average gray level of each color pixel when displaying a color screen is calculated. Specifically, in the embodiments of the present application, the average gray level of red pixels, the average gray level of green pixels, and the average gray level of blue pixels are calculated respectively.
  • step S24 according to the average gray scale of each color pixel, the corresponding voltage adjustment value is searched in the preset voltage adjustment data of each color pixel, and the voltage adjustment value is output to the pixel of that color.
  • the voltage adjustment value corresponding to the blue pixel is searched in the preset voltage adjustment data of the blue pixel, and the voltage adjustment value is output to the blue pixel; Find the voltage adjustment value corresponding to the green pixel in the voltage adjustment data, and output the voltage adjustment value to the green pixel; find the voltage adjustment value corresponding to the red pixel in the preset voltage adjustment data of the red pixel, and output the voltage adjustment value to Red pixels.
  • the monochrome picture includes a red picture, a green picture, and a blue picture.
  • the preset voltage adjustment data includes monochromatic voltage adjustment values of different gray levels, and the monochromatic voltage adjustment values are obtained by the following steps:
  • Step S11 processing the monochrome image and the white image to obtain the brightness adjustment value of the monochrome image and the monochrome measurement value of the white image respectively;
  • Step S12 Obtain the monochrome voltage adjustment values of different gray levels according to the brightness adjustment value of the monochrome picture and the monochrome brightness measurement value of the white picture.
  • the preset voltage adjustment data includes monochromatic voltage adjustment values of different gray levels
  • the brightness compensation device 20 includes a first determining module 21, which is used to process monochromatic colors. Screen and white screen to obtain the brightness adjustment value of the monochrome screen and the monochrome measurement value in the white screen respectively, and to obtain different gray levels according to the brightness adjustment value of the monochrome screen and the monochrome brightness measurement value in the white screen Monochrome voltage adjustment value.
  • the monochromatic voltage adjustment value of different gray levels can be determined.
  • white brightness is a mixture of red, green, and blue brightness
  • R:G: B 0.3: 0.6: 0.1
  • Lv w white luminance value
  • the measured value and the measured value of the green pixel is a blue pixel the red pixel.
  • the brightness adjustment value of each gray-scale monochrome picture and the determination of the monochrome measurement value in the white picture are realized.
  • the brightness compensation method includes:
  • Step S13 Calculate the monochrome brightness difference according to the brightness adjustment value of the monochrome picture and the monochrome brightness measurement value in the white picture;
  • Step S14 Calculate the monochromatic current difference according to the monochromatic brightness difference
  • Step S15 Calculate the monochromatic voltage adjustment value according to the monochromatic current difference.
  • the first determining module 21 is configured to calculate the monochrome brightness difference according to the brightness adjustment value of the monochrome picture and the monochrome brightness measurement value in the white picture, and to calculate the monochrome current according to the monochrome brightness difference. Difference, and used to calculate the monochromatic voltage adjustment value based on the monochromatic current difference.
  • the monochrome voltage adjustment values of different gray levels according to the brightness adjustment value of the monochrome picture and the monochrome brightness measurement value in the white picture.
  • the calculation process of the green voltage adjustment value of each gray level and the blue voltage adjustment value of each gray level is similar to the calculation process of the red voltage adjustment value of each gray level, and will not be repeated here to avoid redundancy.
  • the display assembly 100 may include a burnable voltage adjustment value storage unit 30 and a random access memory (RAM) 32, the first determination module 21 includes a search calculation unit 212, and the dynamic compensation module 24 includes a first gamma A control (Digital gamma control, DGC) unit 242.
  • the monochromatic voltage adjustment values of different gray scales are determined through step S15, they can be stored in the voltage adjustment value storage unit 30.
  • the data of the color picture may be stored in a random access memory (RAM) 32, and the picture statistics module 23 may obtain the color picture from the random access memory (RAM) 32 and perform statistics on it to obtain an average gray scale.
  • the search and calculation unit 212 can find the corresponding monochrome voltage adjustment value according to the average gray level and calculate the corresponding register compensation value, and respectively add the initial register value and the register compensation value of each color and each gray level to generate each color and each gray level. And then output the new register value to the first gamma control unit 242, so that the first gamma control unit 242 outputs control data according to the new register value to complete the compensation for the color image.
  • a control voltage value is formed.
  • the control voltage value is the sum of the initial voltage value and the voltage adjustment value.
  • the brightness compensation method, the display assembly 100 and the electronic device 1000 of the embodiments of the present application are based on the existing circuit drive architecture, and add the search calculation unit 212 and the first gamma control unit 242, according to the average color image Grayscale, real-time generation of monochromatic voltage adjustment value to compensate for the influence of voltage drop on the display effect.
  • This realizes real-time brightness compensation according to the color screen overcomes the phenomenon of the brightness of each gray scale of the screen and the ideal brightness when the color screen is displayed, and makes the brightness of each gray scale of the display module 100 display ideally in line with human eyes when displaying a color screen.
  • the brightness of the academic characteristics helps to ensure uniform gray-scale brightness transition and improve the optical quality of the display assembly 100.
  • the preset voltage adjustment data includes monochrome brightness adjustment curves of different gray levels, and the monochrome brightness adjustment curves of different gray levels are obtained by the following steps:
  • Step S16 processing the monochrome image and the white image to obtain the brightness adjustment value of the monochrome image and the monochrome measurement value of the white image respectively;
  • Step S17 Obtain the monochrome brightness adjustment curves of different gray levels according to the brightness adjustment value of the monochrome picture and the monochrome brightness measurement value in the white picture.
  • the preset voltage adjustment data includes monochrome brightness adjustment curves of different gray levels
  • the brightness compensation device 20 includes a second determining module 22, which is used to process monochrome Screen and white screen to obtain the brightness adjustment value of the monochrome screen and the monochrome measurement value in the white screen respectively, and to obtain different gray levels according to the brightness adjustment value of the monochrome screen and the monochrome brightness measurement value in the white screen Monochromatic brightness adjustment curve.
  • the brightness compensation method includes:
  • Step S18 Calculate the monochrome brightness difference according to the brightness adjustment value of the monochrome picture and the monochrome brightness measurement value in the white picture;
  • Step S19 Calculate the monochromatic current difference according to the monochromatic brightness difference
  • Step S20 Calculate the monochromatic voltage difference according to the monochromatic current difference
  • Step S21 Calculate the monochromatic curve adjustment value according to the monochromatic voltage difference
  • Step S22 Determine the monochromatic brightness adjustment curve according to the monochromatic curve adjustment value.
  • the second determining module 22 is used to calculate the monochrome brightness difference according to the brightness adjustment value of the monochrome picture and the monochrome brightness measurement value in the white picture, and to calculate the monochrome current according to the monochrome brightness difference.
  • the difference is used to calculate the monochrome voltage difference based on the monochrome current difference; and used to calculate the monochrome curve adjustment value based on the monochrome voltage difference; and used to determine the monochrome brightness adjustment curve based on the monochrome curve adjustment value.
  • Step S18, step S19, and step S20 are similar to step S13, step S14, and step S15. To avoid redundancy, they will not be repeated here.
  • the register compensation value of each gray scale of each color can also be calculated based on the monochrome voltage difference and used as the monochrome curve adjustment value.
  • the corresponding monochromatic curve adjustment value can be added to the original monochromatic brightness curve to determine the monochromatic brightness adjustment curve of each gray scale. It can be understood that since there is generally no correction for gray level 0, there are a total of 255 monochrome curve adjustment values for gray level 1 to 255 gray levels, so each color generates 255 monochrome brightness adjustment curves corresponding to 255 gray levels. That is, Gamma curve: Gamma1, Gamma2...Gamma254 and Gamma255, as shown in Figure 13.
  • the display assembly 100 may include a brightness adjustment curve storage unit 40, a random access memory (RAM) 32, and the dynamic compensation module 24 includes a second gamma control unit 244.
  • the monochrome brightness adjustment curve of each gray scale is determined through step S22, it can be stored in the brightness adjustment curve storage unit 40.
  • the data of the color picture may be stored in a random access memory (RAM) 32, and the picture statistics module 23 may obtain the color picture from the random access memory (RAM) 32 and perform statistics on it to obtain an average gray scale.
  • the second gamma control unit 244 switches to the corresponding monochrome brightness adjustment curve according to the average gray scale, thereby outputting control data, which forms a control voltage after digital-to-analog conversion, thereby completing compensation for the color image.
  • the brightness compensation method, the display assembly 100 and the electronic device 1000 of the embodiment of the present application have adjusted different monochrome brightness adjustment curves for different voltage drops in the early stage, which accurately compensates the influence of the voltage drop on the color image display effect.
  • the implementation process is simple, time-consuming, extremely real-time, and the compensation effect is good.
  • This realizes real-time brightness compensation according to the color screen overcomes the phenomenon of the brightness of each gray scale of the screen and the ideal brightness when the color screen is displayed, and makes the brightness of each gray scale of the display module 100 display ideally in line with human eyes when displaying a color screen.
  • the brightness of the academic characteristics helps to ensure uniform gray-scale brightness transition and improve the optical quality of the display assembly 100.
  • each part of this application can be executed by hardware, software, firmware or a combination thereof.
  • multiple steps or methods can be executed by software or firmware stored in a memory and executed by a suitable instruction execution system.
  • a logic gate circuit for performing logic functions on data signals
  • Discrete logic circuits Discrete logic circuits
  • application-specific integrated circuits with suitable combinational logic gates
  • FPGA field programmable gate array
  • the functional units in the various embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units may be integrated into one module.
  • the above-mentioned integrated modules can be executed in the form of hardware or software function modules. If the integrated module is executed in the form of a software function module and sold or used as an independent product, it can also be stored in a computer readable storage medium.
  • the storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc.

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Abstract

一种亮度补偿方法、显示组件(100)和电子装置(1000)。亮度补偿方法用于显示组件(100)。亮度补偿方法包括(步骤S23)获取彩色画面并计算彩色画面的平均灰阶；(步骤S24)根据平均灰阶在预设的电压调整数据中查找每个像素的电压调整值，并将电压调整值输出至每个像素。

Description

亮度补偿方法、显示组件和电子装置 技术领域
本申请涉及显示技术领域，特别涉及一种亮度补偿方法、显示组件和电子装置。
背景技术
相关技术的显示器可通过薄膜晶体管(Thin Film Transistor，TFT)驱动，且显示器的发光强度受到从TFT漏极输入的正电压和从TFT栅极输入的数据电压的电压差的影响。然而，由于电源走线存在阻抗，会造成从TFT漏极输入的正电压下降，从而导致显示器的亮度下降。
发明内容
本申请的实施方式提供一种亮度补偿方法、显示组件和电子装置。
本申请实施方式的亮度补偿方法用于显示组件，所述显示组件包括阵列排布的多个像素，所述亮度补偿方法包括：
获取彩色画面，并计算所述彩色画面的平均灰阶；
根据所述平均灰阶在预设的电压调整数据中查找每个所述像素的电压调整值，并将所述电压调整值输出至每个所述像素。
本申请实施方式的显示组件包括亮度补偿装置和多个像素，所述像素呈阵列排布，所述亮度补偿装置包括画面统计模块和动态补偿模块，所述画面统计模块用于获取彩色画面并计算所述彩色画面的平均灰阶；所述动态补偿模块用于根据所述平均灰阶在预设的电压调整数据中查找每个所述像素的电压调整值，并将所述电压调整值输出至每个所述像素。
本申请实施方式的电子装置，包括主板和上述实施方式的显示组件，所述主板连接所述显示组件。
本申请实施方式的亮度补偿方法、显示组件和电子装置，根据彩色画面的平均灰阶对像素进行电压调整，实现了根据彩色画面实时进行亮度补偿，克服了显示彩色画面时画面各灰阶亮度与理想亮度发生漂移的现象，使显示组件各灰阶亮度在显示彩色画面时能显示理想的符合人眼光学特性的亮度，从而保证灰阶亮度过渡均匀，提升显示组件的光学品质。
本申请的实施方式的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实施方式的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是本申请实施方式的电子装置的模块示意图。
图2是本申请实施方式的亮度补偿装置的模块示意图。
图3是本申请实施方式的显示组件的像素阵列的平面示意图。
图4是本申请实施方式的亮度补偿方法的流程示意图。
图5是本申请另一实施方式的亮度补偿方法的流程示意图。
图6是本申请另一实施方式的亮度补偿装置的模块示意图。
图7是本申请实施方式的亮度补偿方法的亮度调试值和测量值的比较示意图。
图8是本申请又一实施方式的亮度补偿方法的流程示意图。
图9是本申请实施方式的亮度补偿方法的数据流向示意图。
图10是本申请再一实施方式的亮度补偿方法的流程示意图。
图11是本申请再一实施方式的亮度补偿装置的模块示意图。
图12是本申请另一实施方式的亮度补偿方法的流程示意图。
图13是本申请实施方式的单色亮度调整曲线的示意图。
图14是本申请另一实施方式的亮度补偿方法的数据流向示意图。
主要附图标号：
电子装置1000、显示组件100、显示屏10、亮度补偿装置20、第一确定模块21、查找计算单元212、第二确定模块22、画面统计模块23、动态补偿模块24、第一伽马控制单元242、第二伽马控制单元244、电压调整值存储单元30、随机存取存储器32、亮度调整曲线存储单元40。
具体实施方式
下面详细描述本申请的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
在本申请的描述中，需要理解的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多 个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通信；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请参阅图1，本申请实施方式提供一种电子装置1000，电子装置1000包括主板200和显示组件100，主板200连接显示组件100。
主板200可以给显示组件100输入相应的图像数据信号。显示组件100可以对输入的图像信号进行处理并进行显示。需要说明的是，本申请实施方式的电子装置1000包括但不限于显示器、手机、平板电脑、笔记型电脑、电子书、电视机和可穿戴智能设备等电子装置。
请参阅图2和图3，本申请的实施方式提供一种显示组件100。显示组件100包括亮度补偿装置20和多个像素，多个像素呈阵列排布，从而形成像素阵列201，亮度补偿装置20包括画面统计模块23和动态补偿模块24，画面统计模块23用于获取彩色画面并计算彩色画面的平均灰阶；动态补偿模块24用于根据平均灰阶在预设的电压调整数据中查找每个像素的电压调整值，并将电压调整值输出至每个像素。需要指出的是，所说的阵列排布并不限于图示的方式，阵列排布可以是指多个像素按行列的方式来排布。
具体地，显示组件100可以包括显示屏10，显示屏10包括呈阵列排布的多个像素。
请参阅图4，本申请实施方式的亮度补偿方法用于显示组件100，显示组件100包括阵列排布的多个像素，亮度补偿方法包括：
步骤S23：获取彩色画面并计算彩色画面的平均灰阶；
步骤S24：根据平均灰阶在预设的电压调整数据中查找每个像素的电压调整值，并将电压调整值输出至每个像素。
本申请实施方式的亮度补偿方法、显示组件100和电子装置1000，根据彩色画面的平均灰阶对像素进行电压调整，实现了根据彩色画面实时进行亮度补偿，克服了显 示彩色画面时画面各灰阶亮度与理想亮度发生漂移的现象，使显示组件100各灰阶亮度在显示彩色画面时能显示理想的符合人眼光学特性的亮度，从而保证灰阶亮度过渡均匀，提升显示组件100的光学品质。
可以理解，一般而言，用户使用显示组件100时，显示组件100显示的是彩色画面，彩色画面可以理解为颜色的种类多于一种。如果仅在显示组件100显示单一灰阶的情况下对显示组件100的各像素进行电压调整，容易导致在显示彩色画面时，低于灰阶均值的像素的亮度更暗且高于灰阶均值的像素的亮度更亮的现象，也即是显示彩色画面时画面各灰阶亮度与理想亮度发生漂移。本申请实施方式的亮度补偿方法，在显示彩色画面时，获取彩色画面并计算彩色画面的平均灰阶，以实现根据彩色画面的平均灰阶实时地对像素进行调整，可以减缓甚至避免彩色画面各灰阶亮度与理想亮度发生漂移的问题，从而提高显示组件100的显示效果。
具体地，在本申请实施方式中，一个或多个像素可构成像素单元，例如，两个像素构成一个像素单元，这样的像素单元中，两个像素可为红色像素和绿色像素。或者，三个像素构成一个像素单元，这样的像素单元中，三个像素可以为红色像素、绿色像素和蓝色像素。
在步骤S23中，分别计算显示彩色画面时每种颜色的像素的平均灰阶。具体地，在本申请实施方式中，分别计算红色像素的平均灰阶、绿色像素的平均灰阶和蓝色像素的平均灰阶。
在步骤S24中，分别根据每种颜色像素的平均灰阶，在预设的每种颜色像素的电压调整数据中查找对应的电压调整值，并将电压调整值输出至该种颜色的像素。
具体地，在本申请实施方式中，在预设的蓝色像素的电压调整数据中查找蓝色像素对应的电压调整值，并将电压调整值输出至蓝色像素；在预设的绿色像素的电压调整数据中查找绿色像素对应的电压调整值，并将电压调整值输出至绿色像素；在预设的红色像素的电压调整数据中查找红色像素对应的电压调整值，并将电压调整值输出至红色像素。
在某些实施方式中，单色画面包括红色画面、绿色画面和蓝色画面。
请参阅图5，在某些实施方式中，预设的电压调整数据包括不同灰阶的单色电压调整值，单色电压调整值由以下步骤获取：
步骤S11：处理单色画面和白色画面以分别得到单色画面的亮度调试值和白色画面中的单色测量值；
步骤S12：根据单色画面的亮度调试值和白色画面中的单色亮度测量值获取不同灰阶的单色电压调整值。
请参阅图6，在某些实施方式中，预设的电压调整数据包括不同灰阶的单色电压调整值，亮度补偿装置20包括第一确定模块21，第一确定模块21用于处理单色画面和白色画面以分别得到单色画面的亮度调试值和白色画面中的单色测量值，及用于根据单色画面的亮度调试值和白色画面中的单色亮度测量值获取不同灰阶的单色电压调整值。
如此，实现不同灰阶的单色电压调整值的确定。具体地，首先，显示屏10分别调整红色像素、绿色像素和蓝色像素，以使显示组件100满足Gamma＝2.2要求，并分别记录红色画面的亮度调试值Lv r、绿色画面的亮度调试值Lv g和蓝色画面的亮度调试值Lv b。然后，显示器显示白色画面，测量各灰阶下白色亮度的测量值Lv w。请参阅图7，可以理解，白色亮度由红色亮度、绿色亮度和蓝色亮度混合而成，且红色像素、绿色像素和蓝色像素的亮度对白色亮度的贡献遵循一定比例(例如R:G:B＝0.3:0.6:0.1)，因此，可以根据白色亮度的测量值Lv w，分离出红色像素的测量值、绿色像素的测量值和蓝色像素的测量值。这样，实现各灰阶单色画面的亮度调试值和白色画面中的单色测量值的确定。
请参阅图8，在某些实施方式中，亮度补偿方法包括：
步骤S13：根据单色画面的亮度调试值和白色画面中的单色亮度测量值计算单色亮度差；
步骤S14：根据单色亮度差计算单色电流差；
步骤S15：根据单色电流差计算单色电压调整值。
在某些实施方式中，第一确定模块21用于根据单色画面的亮度调试值和白色画面中的单色亮度测量值计算单色亮度差，及用于根据单色亮度差计算单色电流差，以及用于根据单色电流差计算单色电压调整值。
如此，实现根据单色画面的亮度调试值和白色画面中的单色亮度测量值获取不同灰阶的单色电压调整值。具体地，将各灰阶红色画面的亮度调试值Lvr和白色画面中的红色亮度测量值的差值作为红色亮度差ΔLvr，根据亮度与电流的对应关系L V＝K×I，计算各灰阶红色电流差；根据I D＝K n(V gs-V T) 2计算对应的各灰阶红色电压差，各灰阶红色电压差即为各灰阶红色电压调整值。各灰阶绿色电压调整值和各灰阶蓝色电压调整值与各灰阶红色电压调整值的计算过程类似，为避免冗余在此不再赘述。
此外，可以理解，寄存器值控制灰阶与输出驱动电压之间的对应关系。因此，可以根据单色电压差和电压与寄存器值的关系：Vstep＝(VGMAH-VGMAL)/1023、寄存器值＝Vgs/Vstep，计算出各颜色各灰阶的寄存器补偿值。另外，在步骤S11中，分别调整红色像素、绿色像素和蓝色像素以使显示组件100满足Gamma＝2.2要求时，可以确 定并存储各颜色各灰阶的初始寄存器值。在计算出了各颜色各灰阶的寄存器补偿值之后，可以分别将各颜色各灰阶的初始寄存器值和寄存器补偿值相加，生成各颜色各灰阶的新的寄存器值，从而更新灰阶与寄存器值的对应关系。
请参阅图9，显示组件100可以包括可烧录的电压调整值存储单元30和随机存取存储器(RAM)32，第一确定模块21包括查找计算单元212，动态补偿模块24包括第一伽马控制(Digital gamma control，DGC)单元242。在经过步骤S15确定了不同灰阶的单色电压调整值之后，可以将其存储到电压调整值存储单元30。彩色画面的数据可以存入随机存取存储器(RAM)32，画面统计模块23可以从随机存取存储器(RAM)32获取彩色画面并对其进行统计以得到平均灰阶。查找计算单元212可以根据平均灰阶查找到对应的单色电压调整值并计算对应的寄存器补偿值，并分别将各颜色各灰阶的初始寄存器值和寄存器补偿值相加，生成各颜色各灰阶的新的寄存器值，然后将新的寄存器值输出至第一伽马控制单元242，以使第一伽马控制单元242根据新的寄存器值输出控制数据以完成对该彩色画面的补偿。具体地，控制数据经过数模转换之后，形成控制电压值，控制电压值是电压初始值和电压调整值之和，其中，电压初始值是在步骤S11中，分别调整各颜色像素以使显示组件100满足Gamma＝2.2要求时的调试电压值。
综合以上，本申请实施方式的亮度补偿方法、显示组件100和电子装置1000，在现有电路驱动架构的基础上，添加了查找计算单元212和第一伽马控制单元242，根据彩色画面的平均灰阶，实时生成单色电压调整值，补偿压降对显示效果的影响。这样实现了根据彩色画面实时进行亮度补偿，克服了显示彩色画面时画面各灰阶亮度与理想亮度发生漂移的现象，使显示组件100各灰阶亮度在显示彩色画面时能显示理想的符合人眼光学特性的亮度，有利于保证灰阶亮度过渡均匀，提升显示组件100的光学品质。
请参阅图10，在某些实施方式中，预设的电压调整数据包括不同灰阶的单色亮度调整曲线，不同灰阶的单色亮度调整曲线由以下步骤获取：
步骤S16：处理单色画面和白色画面以分别得到单色画面的亮度调试值和白色画面中的单色测量值；
步骤S17：根据单色画面的亮度调试值和白色画面中的单色亮度测量值获取不同灰阶的单色亮度调整曲线。
请参阅图11，在某些实施方式中，预设的电压调整数据包括不同灰阶的单色亮度调整曲线，亮度补偿装置20包括第二确定模块22，第二确定模块22用于处理单色画面和白色画面以分别得到单色画面的亮度调试值和白色画面中的单色测量值，以及用于根据单色画面的亮度调试值和白色画面中的单色亮度测量值获取不同灰阶的单色亮 度调整曲线。
如此，实现获取不同灰阶的单色亮度调整曲线。步骤S16与步骤S11类似，也是分别调整红色像素、绿色像素和蓝色像素，以使显示组件100满足Gamma＝2.2要求，为避免冗余，在此不再赘述。
请参阅图12，在某些实施方式中，亮度补偿方法包括：
步骤S18：根据单色画面的亮度调试值和白色画面中的单色亮度测量值计算单色亮度差；
步骤S19：根据单色亮度差计算单色电流差；
步骤S20：根据单色电流差计算单色电压差；
步骤S21：根据单色电压差计算单色曲线调整值；
步骤S22：根据单色曲线调整值确定单色亮度调整曲线。
在某些实施方式中，第二确定模块22用于根据单色画面的亮度调试值和白色画面中的单色亮度测量值计算单色亮度差，及用于根据单色亮度差计算单色电流差，及用于根据单色电流差计算单色电压差；及用于根据单色电压差计算单色曲线调整值；以及用于根据单色曲线调整值确定单色亮度调整曲线。
如此，实现确定单色亮度调整曲线。步骤S18、步骤S19和步骤S20与步骤S13、步骤S14和步骤S15类似，为避免冗余，在此不再赘述。另外，也可以根据单色电压差计算出各颜色各灰阶的寄存器补偿值，并将其作为单色曲线调整值。另外，在步骤S16中，分别调整红色像素、绿色像素和蓝色像素以使显示组件100满足Gamma＝2.2要求时，可以确定并存储单色亮度原始曲线，作为Gamma0。在计算出了单色曲线调整值之后，可以在单色亮度原始曲线的基础上加上对应的单色曲线调整值，从而确定各灰阶的单色亮度调整曲线。可以理解，由于一般0灰阶不用修正，因此对于1灰阶-255灰阶，共有255个单色曲线调整值，所以各颜色分别生成255条与255个灰阶对应的单色亮度调整曲线，即Gamma曲线：Gamma1、Gamma2……Gamma254和Gamma255，如图13所示。
请参阅图14，显示组件100可以包括亮度调整曲线存储单元40，随机存取存储器(RAM)32，动态补偿模块24包括第二伽马控制单元244。在经过步骤S22确定了各灰阶的单色亮度调整曲线之后，可以将其存储到亮度调整曲线存储单元40。彩色画面的数据可以存入随机存取存储器(RAM)32，画面统计模块23可以从随机存取存储器(RAM)32获取彩色画面并对其进行统计以得到平均灰阶。第二伽马控制单元244根据平均灰阶切换到对应的单色亮度调整曲线，从而输出控制数据，控制数据经过数模转换之后形成控制电压，从而完成对该彩色画面的补偿。
综合以上，本申请实施方式的亮度补偿方法、显示组件100和电子装置1000，通过前期针对不同的压降调试出不同的单色亮度调整曲线，精准的补偿了压降对彩色画面显示效果的影响，并且只需要在当前电路架构的基础上添加亮度调整曲线存储单元40及第二伽马控制单元244，实现过程简单，耗时短，具有极强的实时性，补偿效果好。这样实现了根据彩色画面实时进行亮度补偿，克服了显示彩色画面时画面各灰阶亮度与理想亮度发生漂移的现象，使显示组件100各灰阶亮度在显示彩色画面时能显示理想的符合人眼光学特性的亮度，有利于保证灰阶亮度过渡均匀，提升显示组件100的光学品质。
本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合所述实施方式或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
应当理解，本申请的各部分可以用硬件、软件、固件或它们的组合来执行。在上述实施方式中，多个步骤或方法可以用存储在存储器中且由合适的指令执行系统执行的软件或固件来执行。例如，如果用硬件来执行，和在另一实施方式中一样，可用本领域公知的下列技术中的任一项或他们的组合来执行：具有用于对数据信号执行逻辑功能的逻辑门电路的离散逻辑电路，具有合适的组合逻辑门电路的专用集成电路，可编程门阵列(PGA)，现场可编程门阵列(FPGA)等。
本技术领域的普通技术人员可以理解执行上述实施方法携带的全部或部分步骤是可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，该程序在执行时，包括方法实施例的步骤之一或其组合。
此外，在本申请各个实施例中的各功能单元可以集成在一个处理模块中，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模块中。上述集成的模块既可以采用硬件的形式执行，也可以采用软件功能模块的形式执行。所述集成的模块如果以软件功能模块的形式执行并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。
上述提到的存储介质可以是只读存储器，磁盘或光盘等。尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (13)

  1. 一种亮度补偿方法，用于显示组件，其特征在于，所述显示组件包括阵列排布的多个像素，所述亮度补偿方法包括：
    获取彩色画面，并计算所述彩色画面的平均灰阶；
    根据所述平均灰阶在预设的电压调整数据中查找每个所述像素的电压调整值，并将所述电压调整值输出至每个所述像素。
  2. 如权利要求1所述的亮度补偿方法，其特征在于，所述预设的电压调整数据包括不同灰阶的单色电压调整值，所述单色电压调整值由以下步骤获取：
    处理单色画面和白色画面以分别得到所述单色画面的亮度调试值和所述白色画面中的单色测量值；
    根据所述单色画面的亮度调试值和所述白色画面中的单色亮度测量值获取所述不同灰阶的单色电压调整值。
  3. 如权利要求2所述的亮度补偿方法，其特征在于，所述亮度补偿方法包括：
    根据所述单色画面的亮度调试值和所述白色画面中的单色亮度测量值计算单色亮度差；
    根据所述单色亮度差计算单色电流差；
    根据所述单色电流差计算所述单色电压调整值。
  4. 如权利要求1所述的亮度补偿方法，其特征在于，所述预设的电压调整数据包括不同灰阶的单色亮度调整曲线，所述不同灰阶的单色亮度调整曲线由以下步骤获取：
    处理单色画面和白色画面以分别得到所述单色画面的亮度调试值和所述白色画面中的单色测量值；
    根据所述单色画面的亮度调试值和所述白色画面中的单色亮度测量值获取所述不同灰阶的单色亮度调整曲线。
  5. 如权利要求4所述的亮度补偿方法，其特征在于，所述亮度补偿方法包括：
    根据所述单色画面的亮度调试值和所述白色画面中的单色亮度测量值计算单色亮度差；
    根据所述单色亮度差计算单色电流差；
    根据所述单色电流差计算单色电压差；
    根据所述单色电压差计算单色曲线调整值；
    根据所述单色曲线调整值确定所述单色亮度调整曲线。
  6. 如权利要求2-5任一项所述的亮度补偿方法，其特征在于，所述单色画面包括红色画面、绿色画面和蓝色画面。
  7. 一种显示组件，其特征在于，包括亮度补偿装置和多个像素，所述多个像素呈阵列排布，所述亮度补偿装置包括画面统计模块和动态补偿模块，所述画面统计模块用于获取彩色画面并计算所述彩色画面的平均灰阶；所述动态补偿模块用于根据所述平均灰阶在预设的电压调整数据中查找每个所述像素的电压调整值，并将所述电压调整值输出至每个所述像素。
  8. 如权利要求7所述的显示组件，其特征在于，所述预设的电压调整数据包括不同灰阶的单色电压调整值，所述亮度补偿装置包括第一确定模块，所述第一确定模块用于处理单色画面和白色画面以分别得到所述单色画面的亮度调试值和所述白色画面中的单色测量值，及用于根据所述单色画面的亮度调试值和所述白色画面中的单色亮度测量值获取不同灰阶的单色电压调整值。
  9. 如权利要求8所述的显示组件，其特征在于，所述第一确定模块用于根据所述单色画面的亮度调试值和所述白色画面中的单色亮度测量值计算单色亮度差，及用于根据所述单色亮度差计算单色电流差，以及用于根据所述单色电流差计算所述单色电压调整值。
  10. 如权利要求7所述的显示组件，其特征在于，所述预设的电压调整数据包括不同灰阶的单色亮度调整曲线，所述亮度补偿装置包括第二确定模块，所述第二确定模块用于处理单色画面和白色画面以分别得到所述单色画面的亮度调试值和所述白色画面中的单色测量值，以及用于根据所述单色画面的亮度调试值和所述白色画面中的单色亮度测量值获取不同灰阶的单色亮度调整曲线。
  11. 如权利要求10所述的显示组件，其特征在于，所述第二确定模块用于根据所述单色画面的亮度调试值和所述白色画面中的单色亮度测量值计算单色亮度差，及用 于根据所述单色亮度差计算单色电流差，及用于根据所述单色电流差计算单色电压差；及用于根据所述单色电压差计算单色曲线调整值；以及用于根据所述单色曲线调整值确定所述单色亮度调整曲线。
  12. 如权利要求8-11任一项所述的显示组件，其特征在于，所述单色画面包括红色画面、绿色画面和蓝色画面。
  13. 一种电子装置，其特征在于，包括主板和权利要求7-12任意一项所述的显示组件，所述主板连接所述显示组件。
PCT/CN2019/072836 2019-01-23 2019-01-23 亮度补偿方法、显示组件和电子装置 Ceased WO2020150922A1 (zh)

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