CN113272887A - Brightness compensation method, display assembly and electronic device - Google Patents

Brightness compensation method, display assembly and electronic device Download PDF

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Publication number
CN113272887A
CN113272887A CN201980073513.6A CN201980073513A CN113272887A CN 113272887 A CN113272887 A CN 113272887A CN 201980073513 A CN201980073513 A CN 201980073513A CN 113272887 A CN113272887 A CN 113272887A
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China
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monochrome
picture
brightness
value
luminance
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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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    • 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

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  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

A brightness compensation method, a display module (100) and an electronic device (1000). A brightness compensation method is used for a display assembly (100). The brightness compensation method includes (step S23) acquiring a color picture and calculating an average gray scale of the color picture; (step S24) the voltage adjustment value of each pixel is searched for in the preset voltage adjustment data according to the average gray scale, and the voltage adjustment value is output to each pixel.

Description

Brightness compensation method, display assembly and electronic device Technical Field
The present disclosure relates to display technologies, and in particular, to a brightness compensation method, a display module and an electronic device.
Background
The related art display may be driven by a Thin Film Transistor (TFT), and the light emission intensity of the display is affected by a voltage difference of a positive voltage input from a drain of the TFT and a data voltage input from a gate of the TFT. However, the impedance of the power supply line may cause the positive voltage input from the drain of the TFT to drop, thereby causing the brightness of the display to drop.
Disclosure of Invention
The embodiment of the application provides a brightness compensation method, a display assembly and an electronic device.
The brightness compensation method of the embodiment of the application is used for a display assembly, the display assembly comprises a plurality of pixels arranged in an array, and the brightness compensation method comprises the following steps:
acquiring a color picture, and calculating the average gray scale of the color picture;
and searching a voltage adjustment value of each pixel in preset voltage adjustment data according to the average gray scale, and outputting the voltage adjustment value to each pixel.
The display component comprises a brightness compensation device and a plurality of pixels, wherein the pixels are arranged in an array mode, the brightness compensation device comprises a picture counting module and a dynamic compensation module, and the picture counting module is used for acquiring a color picture and calculating the average gray scale of the color picture; the dynamic compensation module is used for searching a voltage adjustment value of each pixel in preset voltage adjustment data according to the average gray scale and outputting the voltage adjustment value to each pixel.
The electronic device of the embodiment of the application comprises a main board and the display assembly of the embodiment, wherein the main board is connected with the display assembly.
According to the brightness compensation method, the display component and the electronic device, the voltage of the pixel is adjusted according to the average gray scale of the color picture, the brightness compensation is carried out in real time according to the color picture, the phenomenon that the brightness of each gray scale of the picture drifts with the ideal brightness when the color picture is displayed is overcome, and the brightness of each gray scale of the display component can display the ideal brightness which accords with the optical characteristics of human eyes when the color picture is displayed, so that the gray scale brightness transition is uniform, and the optical quality of the display component is improved.
Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a block diagram of an electronic device according to an embodiment of the present application.
Fig. 2 is a block diagram of a luminance compensation apparatus according to an embodiment of the present application.
Fig. 3 is a schematic plan view of a pixel array of a display module according to an embodiment of the present application.
Fig. 4 is a flowchart illustrating a luminance compensation method according to an embodiment of the present application.
Fig. 5 is a flowchart illustrating a luminance compensation method according to another embodiment of the present application.
Fig. 6 is a block diagram of a luminance compensation apparatus according to another embodiment of the present application.
Fig. 7 is a comparison diagram of a luminance adjustment value and a measured value in the luminance compensation method according to the embodiment of the present application.
Fig. 8 is a flowchart illustrating a luminance compensation method according to another embodiment of the present application.
Fig. 9 is a schematic data flow diagram of the brightness compensation method according to the embodiment of the present application.
Fig. 10 is a flowchart illustrating a luminance compensation method according to still another embodiment of the present application.
Fig. 11 is a block diagram of a luminance compensation apparatus according to still another embodiment of the present application.
Fig. 12 is a flowchart illustrating a luminance compensation method according to another embodiment of the present application.
Fig. 13 is a schematic diagram of a monochrome luminance adjustment curve according to the embodiment of the present application.
Fig. 14 is a schematic data flow diagram of an illumination compensation method according to another embodiment of the present application.
The main reference numbers:
the display device comprises an electronic device 1000, a display assembly 100, a display screen 10, a brightness compensation device 20, a first determination module 21, a search calculation unit 212, a second determination module 22, a picture statistics module 23, a dynamic compensation module 24, a first gamma control unit 242, a second gamma control unit 244, a voltage adjustment value storage unit 30, a random access memory 32 and a brightness adjustment curve storage unit 40.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1, an electronic device 1000 according to an embodiment of the present disclosure includes a main board 200 and a display module 100, where the main board 200 is connected to the display module 100.
The main board 200 may input a corresponding image data signal to the display module 100. The display assembly 100 may process and display an input image signal. The electronic device 1000 according to the embodiment of the present disclosure includes, but is not limited to, a display, a mobile phone, a tablet computer, a notebook computer, an electronic book, a television, and a wearable smart device.
Referring to fig. 2 and 3, a display assembly 100 is provided according to an embodiment of the present disclosure. The display assembly 100 includes a luminance compensation device 20 and a plurality of pixels, the plurality of pixels are arranged in an array to form a pixel array 201, the luminance compensation device 20 includes a picture statistics module 23 and a dynamic compensation module 24, the picture statistics module 23 is used for obtaining a color picture and calculating an average gray scale of the color picture; the dynamic compensation module 24 is configured to search a 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. It should be noted that the array arrangement is not limited to the illustrated manner, and the array arrangement may mean that a plurality of pixels are arranged in rows and columns.
Specifically, the display assembly 100 may include a display screen 10, the display screen 10 including a plurality of pixels arranged in an array.
Referring to fig. 4, the brightness compensation method according to the embodiment of the present application is applied to a display device 100, the display device 100 includes a plurality of pixels arranged in an array, and the brightness compensation method includes:
step S23: acquiring a color picture and calculating the average gray scale of the color picture;
step S24: and searching the voltage adjustment value of each pixel in preset voltage adjustment data according to the average gray scale, and outputting the voltage adjustment value to each pixel.
The brightness compensation method, the display module 100 and the electronic device 1000 according to the embodiment of the application adjust the voltage of the pixel according to the average gray scale of the color picture, thereby realizing the brightness compensation according to the color picture in real time, overcoming the phenomenon that the brightness of each gray scale of the picture drifts from the ideal brightness when the color picture is displayed, and enabling the brightness of each gray scale of the display module 100 to display the ideal brightness which accords with the optical characteristics of human eyes when the color picture is displayed, thereby ensuring the transition uniformity of the gray scale brightness and improving the optical quality of the display module 100.
It is understood that, generally speaking, when the user uses the display assembly 100, the display assembly 100 displays a color picture, and the color picture can be understood as more than one kind of color. If the voltage adjustment is performed on each pixel of the display device 100 only when the display device 100 displays a single gray scale, it is easy to cause the phenomenon that the brightness of the pixel below the average gray scale value is darker and the brightness of the pixel above the average gray scale value is brighter when displaying a color picture, i.e. the brightness of each gray scale of the picture drifts from the ideal brightness when displaying the color picture. In the brightness compensation method of the embodiment of the application, when the color picture is displayed, the color picture is obtained and the average gray scale of the color picture is calculated, so that the pixel is adjusted in real time according to the average gray scale of the color picture, and the problem that the brightness of each gray scale of the color picture and the ideal brightness drift can be alleviated or even avoided, thereby improving the display effect of the display assembly 100.
Specifically, in the embodiments of the present application, one or more pixels may constitute a pixel unit, for example, two pixels constitute one pixel unit, and in such a pixel unit, the two pixels may be a red pixel and a green pixel. Alternatively, three pixels constitute one pixel unit, and among such pixel units, the three pixels may be a red pixel, a green pixel, and a blue pixel.
In step S23, the average gray scale of each color pixel when displaying a color screen is calculated. Specifically, in the present embodiment, the average gray scale of the red pixel, the average gray scale of the green pixel, and the average gray scale of the blue pixel are calculated, respectively.
In step S24, the voltage adjustment value is searched for from the preset voltage adjustment data of each color pixel according to the average gray scale of each color pixel, and the voltage adjustment value is output to the color pixel.
Specifically, in the embodiment of the present application, a voltage adjustment value corresponding to a blue pixel is searched in preset voltage adjustment data of the blue pixel, and the voltage adjustment value is output to the blue pixel; searching a voltage adjustment value corresponding to the green pixel in preset voltage adjustment data of the green pixel, and outputting the voltage adjustment value to the green pixel; and searching a voltage adjustment value corresponding to the red pixel in the preset voltage adjustment data of the red pixel, and outputting the voltage adjustment value to the red pixel.
In some embodiments, the monochrome pictures include red pictures, green pictures, and blue pictures.
Referring to fig. 5, in some embodiments, the preset voltage adjustment data includes monochrome voltage adjustment values of different gray scales, and the monochrome voltage adjustment values are obtained by the following steps:
step S11: processing the monochrome picture and the white picture to respectively obtain a brightness debugging value of the monochrome picture and a monochrome measured value in the white picture;
step S12: and acquiring monochrome voltage adjusting values of different gray scales according to the brightness debugging value of the monochrome picture and the monochrome brightness measuring value in the white picture.
Referring to fig. 6, in some embodiments, the preset voltage adjustment data includes monochrome voltage adjustment values with different gray scales, and the brightness compensation apparatus 20 includes a first determining module 21, where the first determining module 21 is configured to process the monochrome picture and the white picture to obtain a brightness debugging value of the monochrome picture and a monochrome measurement value in the white picture, respectively, and to obtain the monochrome voltage adjustment values with different gray scales according to the brightness debugging value of the monochrome picture and the monochrome measurement value in the white picture.
Thus, the determination of the adjustment values of the monochromatic voltages of different gray scales is realized. Specifically, first, the display screens 10 are adjusted individuallyRed pixel, green pixel and blue pixel, so that the display assembly 100 meets the requirement of Gamma 2.2, and respectively records the brightness debugging value Lv of the red picturerBrightness debugging value Lv of green picturegAnd a brightness adjustment value Lv of a blue pictureb. Then, the display displays a white screen, and measures a measured value Lv of white luminance at each gray levelw. Referring to fig. 7, it can be understood that the white luminance is a mixture of red, green and blue luminances, and the luminances of the red, green and blue pixels contribute to the white luminance in a certain ratio (e.g., R: G: B ═ 0.3:0.6:0.1), so that the measured value Lv of the white luminance can be used as a function of the measured value Lv of the white luminancewThe measured values of the red pixels, the measured values of the green pixels, and the measured values of the blue pixels are separated. Thus, the determination of the brightness debugging value of each gray-scale monochrome picture and the monochrome measurement value in the white picture is realized.
Referring to fig. 8, in some embodiments, the luminance compensation method includes:
step S13: calculating a monochrome brightness difference according to the brightness debugging value of the monochrome picture and the monochrome brightness measuring value in the white picture;
step S14: calculating a monochromatic current difference according to the monochromatic brightness difference;
step S15: and calculating a monochromatic voltage adjustment value according to the monochromatic current difference.
In some embodiments, the first determining module 21 is configured to calculate a monochrome luminance difference from the luminance debugging value of the monochrome picture and the monochrome luminance measurement value in the white picture, and to calculate a monochrome current difference from the monochrome luminance difference, and to calculate a monochrome voltage adjusting value from the monochrome current difference.
Therefore, the monochrome voltage adjusting values of different gray scales can be obtained according to the brightness debugging value of the monochrome picture and the monochrome brightness measuring value in the white picture. Specifically, the difference between the brightness adjustment value Lvr of each gray-scale red picture and the red brightness measurement value in the white picture is used as the red brightness difference Δ Lvr, and the corresponding relation L between the brightness and the current is used as the corresponding relation LVCalculating the red current difference of each gray scale; according to ID＝K n(V gs-V T) 2And calculating the corresponding gray scale red voltage difference, wherein the gray scale red voltage difference is the adjustment value of each gray scale red voltage. The calculation process of the green voltage adjustment value and the blue voltage adjustment value of each gray scale is similar to that of the red voltage adjustment value of each gray scale, and is not described herein again to avoid redundancy.
In addition, it can be understood that the register values control the correspondence between the gray scale and the output drive voltage. Thus, it is possible to use the monochrome voltage difference and the voltage versus register value relationship: the register compensation value for each gray level of each color is calculated by (VGMAH-VGMAL)/1023, and the register value by (Vgs/Vstep). In addition, in step S11, when the red pixel, the green pixel, and the blue pixel are respectively adjusted so that the Gamma of the display device 100 satisfies the requirement of 2.2, the initial register value of each gray level of each color may be determined and stored. After the register compensation value of each gray scale of each color is calculated, the initial register value and the register compensation value of each gray scale of each color can be added to generate a new register value of each gray scale of each color, so that the corresponding relationship between the gray scale and the register value is updated.
Referring to fig. 9, the display device 100 may include a recordable voltage adjustment value storage unit 30 and a Random Access Memory (RAM)32, the first determining module 21 includes a search calculating unit 212, and the dynamic compensation module 24 includes a first gamma control (DGC) unit 242. After monochrome voltage adjustment values of different gray scales are determined through step S15, they may be stored in the voltage adjustment value storage unit 30. The data of the color picture can be stored in a Random Access Memory (RAM)32, and the picture statistic module 23 can obtain the color picture from the Random Access Memory (RAM)32 and count it to obtain an average gray scale. The searching and calculating unit 212 may search the corresponding monochrome voltage adjustment value according to the average gray scale and calculate the corresponding register compensation value, and add the initial register value and the register compensation value of each gray scale of each color, respectively, to generate a new register value of each gray scale of each color, 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 of the color picture. Specifically, after the control data is subjected to digital-to-analog conversion, a control voltage value is formed, where the control voltage value is a sum of a voltage initial value and a voltage adjustment value, where the voltage initial value is a debug voltage value when the display module 100 respectively adjusts each color pixel so as to satisfy the requirement of Gamma 2.2 in step S11.
In summary, the brightness compensation method, the display module 100 and the electronic device 1000 according to the embodiment of the present invention add the search unit 212 and the first gamma control unit 242 on the basis of the existing circuit driving architecture, generate the monochrome voltage adjustment value in real time according to the average gray scale of the color picture, and compensate the influence of the voltage drop on the display effect. Therefore, the brightness compensation is carried out in real time according to the color picture, the phenomenon that the brightness of each gray scale of the picture drifts from the ideal brightness when the color picture is displayed is overcome, the brightness of each gray scale of the display component 100 can display the ideal brightness which accords with the optical characteristics of human eyes when the color picture is displayed, the transition uniformity of the gray scale brightness is favorably ensured, and the optical quality of the display component 100 is improved.
Referring to fig. 10, in some embodiments, 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 picture and the white picture to respectively obtain a brightness debugging value of the monochrome picture and a monochrome measured value in the white picture;
step S17: and acquiring monochrome brightness adjustment curves of different gray scales according to the brightness debugging value of the monochrome picture and the monochrome brightness measured value in the white picture.
Referring to fig. 11, in some embodiments, the preset voltage adjustment data includes monochrome brightness adjustment curves with different gray scales, and the brightness compensation apparatus 20 includes a second determining module 22, where the second determining module 22 is configured to process the monochrome picture and the white picture to obtain a brightness debugging value of the monochrome picture and a monochrome measurement value in the white picture, respectively, and to obtain the monochrome brightness adjustment curves with different gray scales according to the brightness debugging value of the monochrome picture and the monochrome measurement value in the white picture.
Therefore, the monochrome brightness adjustment curves of different gray scales are obtained. Step S16 is similar to step S11, and the red pixel, the green pixel and the blue pixel are respectively adjusted to make the display device 100 satisfy the requirement of Gamma 2.2, which is not repeated herein for avoiding redundancy.
Referring to fig. 12, in some embodiments, the luminance compensation method includes:
step S18: calculating a monochrome brightness difference according to the brightness debugging value of the monochrome picture and the monochrome brightness measuring value in the white picture;
step S19: calculating a monochromatic current difference according to the monochromatic brightness difference;
step S20: calculating a monochromatic voltage difference according to the monochromatic current difference;
step S21: calculating a monochromatic curve adjustment value according to the monochromatic voltage difference;
step S22: and determining a monochromatic brightness adjustment curve according to the monochromatic curve adjustment value.
In some embodiments, the second determining module 22 is configured to calculate a monochrome luminance difference according to the luminance debugging value of the monochrome picture and a monochrome luminance measurement value in the white picture, and to calculate a monochrome current difference according to the monochrome luminance difference, and to calculate a monochrome voltage difference according to the monochrome current difference; and is used for calculating the adjustment value of the monochromatic curve according to the monochromatic voltage difference; and determining a monochrome brightness adjustment curve according to the monochrome curve adjustment value.
Thus, determination of a monochrome luminance adjustment curve is achieved. Step S18, step S19, and step S20 are similar to step S13, step S14, and step S15, and are not described herein again to avoid redundancy. In addition, the register compensation value of each gray scale of each color can be calculated according to the monochrome voltage difference and used as the monochrome curve adjustment value. In addition, in step S16, when the red pixel, the green pixel, and the blue pixel are respectively adjusted so that the display element 100 satisfies the Gamma 2.2 requirement, a monochrome luminance original curve may be determined and stored as Gamma 0. After the monochrome curve adjustment value is calculated, the corresponding monochrome curve adjustment value can be added on the basis of the monochrome brightness original curve, so as to determine the monochrome brightness adjustment curve of each gray scale. It can be understood that, since the 0 gray scale is not modified, 255 monochrome curve adjustment values are provided for 1 gray scale to 255 gray scales, and therefore 255 monochrome luminance adjustment curves corresponding to the 255 gray scales, i.e. Gamma curves, are generated for each color: gamma1, Gamma2 … … Gamma254, and Gamma255, as shown in fig. 13.
Referring to fig. 14, the display device 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. After the monochrome luminance adjustment curve for each gray level is determined through step S22, it may be stored in the luminance adjustment curve storage unit 40. The data of the color picture can be stored in a Random Access Memory (RAM)32, and the picture statistic module 23 can obtain the color picture from the Random Access Memory (RAM)32 and count it to obtain an average gray scale. The second gamma control unit 244 switches to a corresponding monochrome brightness adjustment curve according to the average gray scale to output control data, and the control data forms a control voltage after digital-to-analog conversion to complete compensation of the color picture.
In summary, the brightness compensation method, the display module 100, and the electronic device 1000 according to the embodiments of the present application debug different monochrome brightness adjustment curves for different voltage drops in an earlier stage, accurately compensate the influence of the voltage drop on the color image display effect, and only add the brightness adjustment curve storage unit 40 and the second gamma control unit 244 on the basis of the current circuit architecture, so that the implementation process is simple, consumes less time, has extremely strong real-time performance, and has a good compensation effect. Therefore, the brightness compensation is carried out in real time according to the color picture, the phenomenon that the brightness of each gray scale of the picture drifts from the ideal brightness when the color picture is displayed is overcome, the brightness of each gray scale of the display component 100 can display the ideal brightness which accords with the optical characteristics of human eyes when the color picture is displayed, the transition uniformity of the gray scale brightness is favorably ensured, and the optical quality of the display component 100 is improved.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, various steps or methods may be performed by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for performing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried out in the above method may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be executed in the form of hardware or in the form of a software functional module. The integrated module, if executed in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (13)

  1. A brightness compensation method for a display module, wherein the display module includes a plurality of pixels arranged in an array, the brightness compensation method comprising:
    acquiring a color picture, and calculating the average gray scale of the color picture;
    and searching a voltage adjustment value of each pixel in preset voltage adjustment data according to the average gray scale, and outputting the voltage adjustment value to each pixel.
  2. The luminance compensation method as claimed in claim 1, wherein the preset voltage adjustment data includes monochrome voltage adjustment values of different gray scales, the monochrome voltage adjustment values being obtained by:
    processing a monochrome picture and a white picture to respectively obtain a brightness debugging value of the monochrome picture and a monochrome measured value in the white picture;
    and acquiring the monochrome voltage adjusting values of different gray scales according to the brightness debugging value of the monochrome picture and the monochrome brightness measuring value in the white picture.
  3. The luminance compensation method as claimed in claim 2, wherein the luminance compensation method comprises:
    calculating a monochrome brightness difference according to the brightness debugging value of the monochrome picture and the monochrome brightness measuring value in the white picture;
    calculating a monochromatic current difference according to the monochromatic brightness difference;
    and calculating the monochromatic voltage adjustment value according to the monochromatic current difference.
  4. The luminance compensation method as claimed in claim 1, wherein the preset voltage adjustment data includes monochrome luminance adjustment curves of different gray scales, the monochrome luminance adjustment curves of different gray scales are obtained by the steps of:
    processing a monochrome picture and a white picture to respectively obtain a brightness debugging value of the monochrome picture and a monochrome measured value in the white picture;
    and acquiring the monochrome brightness adjusting curves of different gray scales according to the brightness debugging value of the monochrome picture and the monochrome brightness measuring value in the white picture.
  5. The luminance compensation method as claimed in claim 4, wherein the luminance compensation method comprises:
    calculating a monochrome brightness difference according to the brightness debugging value of the monochrome picture and the monochrome brightness measuring value in the white picture;
    calculating a monochromatic current difference according to the monochromatic brightness difference;
    calculating a monochromatic voltage difference according to the monochromatic current difference;
    calculating a monochromatic curve adjustment value according to the monochromatic voltage difference;
    and determining the monochrome brightness adjustment curve according to the monochrome curve adjustment value.
  6. The luminance compensation method according to any one of claims 2 to 5, wherein the monochrome picture includes a red picture, a green picture, and a blue picture.
  7. A display component is characterized by comprising a brightness compensation device and a plurality of pixels, wherein the pixels are arranged in an array mode, the brightness compensation device comprises a picture statistic module and a dynamic compensation module, and the picture statistic module is used for obtaining a color picture and calculating the average gray scale of the color picture; the dynamic compensation module is used for searching a voltage adjustment value of each pixel in preset voltage adjustment data according to the average gray scale and outputting the voltage adjustment value to each pixel.
  8. The display assembly according to claim 7, wherein the preset voltage adjustment data comprises monochrome voltage adjustment values of different gray scales, and the brightness compensation apparatus comprises a first determining module, the first determining module is configured to process a monochrome picture and a white picture to obtain a brightness adjustment value of the monochrome picture and a monochrome measurement value in the white picture, respectively, and to obtain the monochrome voltage adjustment values of different gray scales according to the brightness adjustment value of the monochrome picture and the monochrome measurement value in the white picture.
  9. The display assembly of claim 8, wherein the first determining module is configured to calculate a monochrome luminance difference based on the luminance debugging value for the monochrome picture and the monochrome luminance measurement value in the white picture, and to calculate a monochrome current difference based on the monochrome luminance difference, and to calculate the monochrome voltage adjusting value based on the monochrome current difference.
  10. The display assembly according to claim 7, wherein the preset voltage adjustment data comprises monochrome brightness adjustment curves of different gray scales, and the brightness compensation apparatus comprises a second determining module, the second determining module is configured to process a monochrome picture and a white picture to obtain a brightness debugging value of the monochrome picture and a monochrome measurement value in the white picture, respectively, and to obtain the monochrome brightness adjustment curves of different gray scales according to the brightness debugging value of the monochrome picture and the monochrome measurement value in the white picture.
  11. The display assembly of claim 10, wherein the second determining module is configured to calculate a monochrome luminance difference based on the luminance debugging value for the monochrome picture and the monochrome luminance measurement value in the white picture, and to calculate a monochrome current difference based on the monochrome luminance difference, and to calculate a monochrome voltage difference based on the monochrome current difference; and is used for calculating the adjustment value of the monochromatic curve according to the monochromatic voltage difference; and is used for determining the monochrome brightness adjustment curve according to the monochrome curve adjustment value.
  12. The display assembly of any one of claims 8-11, wherein the monochrome picture comprises a red picture, a green picture, and a blue picture.
  13. An electronic device comprising a main board and the display module according to any one of claims 7 to 12, wherein the main board is connected to the display module.
CN201980073513.6A 2019-01-23 2019-01-23 Brightness compensation method, display assembly and electronic device Pending CN113272887A (en)

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Application publication date: 20210817