CN109410839B - Correction optimization method and device for display screen, electronic equipment and storage medium - Google Patents

Correction optimization method and device for display screen, electronic equipment and storage medium Download PDF

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CN109410839B
CN109410839B CN201811305939.3A CN201811305939A CN109410839B CN 109410839 B CN109410839 B CN 109410839B CN 201811305939 A CN201811305939 A CN 201811305939A CN 109410839 B CN109410839 B CN 109410839B
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display screen
correction
reference mode
correction value
mode
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CN109410839A (en
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丁仁杰
田雪松
徐文
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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 using controlled light sources
    • G09G3/30Control 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 using controlled light sources using electroluminescent panels
    • G09G3/32Control 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208Control 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225Control 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0673Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve

Abstract

The application provides a correction optimization method and device for a display screen, electronic equipment and a storage medium, and belongs to the technical field of electronics. Wherein, the method comprises the following steps: controlling the display screen to enter a reference mode; correcting the display screen in a reference mode to generate a reference correction value; acquiring an offset correction value corresponding to a display screen reference mode; and acquiring a correction value corresponding to the reference mode according to the reference correction value and the offset correction value corresponding to the reference mode. Therefore, the correction optimization method of the display screen not only reduces the correction times and improves the correction efficiency and the productivity, but also ensures the display image quality and the optical effect of the display screen and improves the user experience.

Description

Correction optimization method and device for display screen, electronic equipment and storage medium
Technical Field
The present application relates to the field of electronic technologies, and in particular, to a method and an apparatus for correcting and optimizing a display screen, an electronic device, and a storage medium.
Background
An Active-matrix organic light-emitting diode (AMOLED) is a display technology applied to televisions and mobile devices. The AMOLED has the advantages of low power consumption, high response speed, wide viewing angle, capability of realizing high-resolution display, wide temperature characteristic, low cost, high brightness, high contrast, light weight, easiness in realizing full-color and flexible display and the like, and is widely applied to the technical field of display. Meanwhile, the Liquid Crystal Display device has attracted wide attention in the field of flat panel Display technology, and is considered to be a Display device most likely to replace a Liquid Crystal Display (LCD).
As a new generation of display technology, the conventional AMOLED preparation technology is not mature enough and is diversified. In order to ensure the display effect of the AMOLED display screen at low brightness and low gray scale, the gamma value of the AMOLED display screen needs to be corrected. The applicant finds that, at present, there are two main gamma correction methods, one is to correct only the gamma value of the display screen in the normal display mode, and the other display modes directly use the correction result in the normal display mode, and this correction method may cause the color coordinate and brightness of the picture to exceed the preset range, i.e. the picture quality is abnormal. The other method is to perform gamma correction in multiple display modes of the display screen, so as to improve the image display effect of the display screen in the various display modes.
Disclosure of Invention
The application provides a correction optimization method and device for a display screen, an electronic device and a storage medium, which are used for solving the problems that in the related art, the gamma correction algorithm of the existing AMOLED display screen cannot ensure the display image quality and the optical effect of the screen, the single-piece working time of gamma correction is reduced, and the correction efficiency is improved.
An embodiment of an aspect of the present application provides a correction optimization method for a display screen, including: controlling the display screen to enter a reference mode; correcting the display screen in the reference mode to generate a reference correction value; acquiring an offset correction value corresponding to the display screen reference mode; and acquiring a correction value corresponding to the reference mode according to the reference correction value and the offset correction value corresponding to the reference mode.
The correction optimization device of display screen that this application another aspect embodiment provided includes: the control module is used for controlling the display screen to enter a reference mode; the correction module is used for correcting the display screen in the reference mode to generate a reference correction value; the first acquisition module is used for acquiring an offset correction value corresponding to the display screen reference mode; and the second acquisition module is used for acquiring a correction value corresponding to the reference mode according to the reference correction value and the offset correction value corresponding to the reference mode.
An embodiment of another aspect of the present application provides an electronic device, which includes: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor implements the method for correction optimization of a display screen as described above when executing the program.
In another aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the method for optimizing the correction of a display screen.
In another aspect, the present application provides a computer program, which is executed by a processor to implement the method for correcting and optimizing a display screen according to the embodiment of the present application.
According to the correction optimization method, the correction optimization device, the electronic device, the computer-readable storage medium and the computer program for the display screen, the display screen can be controlled to enter the reference mode, the display screen is corrected in the reference mode to generate the reference correction value, then the offset correction value corresponding to the reference mode of the display screen is obtained, and then the correction value corresponding to the reference mode is obtained according to the reference correction value and the offset correction value corresponding to the reference mode. Therefore, the calibration value corresponding to the reference mode can be obtained according to the generated reference calibration value and the preset offset calibration value corresponding to the reference mode by once correcting the display screen in the reference mode, so that the times of correction are reduced, the correction efficiency and the production capacity are improved, the display image quality and the optical effect of the display screen are ensured, and the user experience is improved.
Additional aspects and advantages 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 the present application.
Drawings
The foregoing 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 schematic flowchart of a correction optimization method for a display screen according to an embodiment of the present disclosure;
FIG. 2(a) is a schematic diagram of a CIE1931 color space provided by an embodiment of the present application;
FIG. 2(b) is a schematic color gamut diagram of a display screen provided in an embodiment of the present application;
FIG. 2(c) is a schematic diagram of a gray scale image in a human eye according to an embodiment of the present disclosure;
fig. 3 is a schematic flowchart of another correction optimization method for a display screen according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a correction optimization apparatus for a display screen according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the like or similar elements throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
The embodiment of the application aims at the problems that the gamma correction algorithm of the existing AMOLED display screen cannot ensure the display image quality and the optical effect of the screen, the single working hour of gamma correction is reduced, and the correction efficiency is improved, and provides a correction optimization method of the display screen.
According to the correction optimization method for the display screen, the display screen can be controlled to enter the reference mode, the display screen is corrected in the reference mode to generate the reference correction value, then the offset correction value corresponding to the reference mode of the display screen is obtained, and then the correction value corresponding to the reference mode is obtained according to the reference correction value and the offset correction value corresponding to the reference mode. Therefore, the calibration value corresponding to the reference mode can be obtained according to the generated reference calibration value and the preset offset calibration value corresponding to the reference mode by once correcting the display screen in the reference mode, so that the times of correction are reduced, the correction efficiency and the production capacity are improved, the display image quality and the optical effect of the display screen are ensured, and the user experience is improved.
The following describes in detail a correction optimization method, an apparatus, an electronic device, a storage medium, and a computer program for a display screen provided in the present application with reference to the drawings.
Fig. 1 is a schematic flowchart of a correction optimization method for a display screen according to an embodiment of the present disclosure.
As shown in fig. 1, the correction optimization method for the display screen includes the following steps:
step 101, controlling a display screen to enter a reference mode.
The reference mode refers to a normal display mode of the display screen. In practical use of the electronic device, the normal display mode is the display screen brightness display mode most commonly used by users, and therefore, in one possible implementation form of the embodiment of the present application, the normal display mode of the display screen may be used as a reference mode.
It should be noted that, in a possible implementation form of the embodiment of the present application, the brightness display mode of the display screen may be modified through a setting menu in the electronic device where the display screen is located, so as to control the display screen to enter the reference mode.
In the embodiment of the present application, the display screen may be an AMOLED display screen. AMOLED is a new display technology and is paid more and more attention by manufacturers of electronic equipment. Compared with the traditional liquid crystal display screen, the AMOLED display screen has the self-luminous characteristic, can be made into a flexible, transparent and display in any shape, has the advantages of wider viewing angle, higher refresh rate, thinner size, clear image quality and energy conservation, and is the novel plane display technology with the most potential in the next generation. Therefore, the mobile device is increasingly used in a smart phone, a tablet computer and the like.
And 102, correcting the display screen in the reference mode to generate a reference correction value.
The correction refers to gamma correction, namely, gamma parameters of the display screen are corrected, so that the brightness change of the display screen accords with the perception rule of human eyes on brightness, and the display effect of the display screen is improved.
Correspondingly, when the gamma correction is performed on the display screen in the benchmark mode, the benchmark calibration value refers to a gamma parameter of the display screen, which enables the display effect of the display screen to conform to the characteristics of human eyes after the display screen is corrected.
It should be noted that the parameters of the display screen include resolution, brightness, contrast, gamma, etc., which determine the quality of the displayed content of the display, wherein the brightness, contrast, color gamut, gamma are particularly important.
Brightness is the brightness of the display screenThe brightness is given in candela per square meter (cd/m)2) I.e. the light intensity per unit area. The brightness setting of the display screen is related to the light intensity in the use environment. For example, in a television set for indoor use, the display screen brightness is set at 70-300cd/m2To (c) to (d); the brightness of a display screen of the existing smart phone can be automatically adjusted according to ambient light, and the setting range of the brightness of the display screen of the smart phone is wider and is about 40-800cd/m2
Contrast ratio refers to the ratio of the maximum brightness to the minimum brightness of the display screen. Under a reasonable brightness value, the higher the contrast is, the richer the color gradation that can be displayed by the display device is, and the contrast is generally improved by reducing the brightness of a black picture.
The display screen color gamut is a representation of the vividness of the color of the display. The color gamut of the display screen is a color gamut of the display screen, which is obtained by taking a triangle area of three primary colors of the display screen on a CIE chromaticity diagram as a numerator, and taking a triangle area of three primary colors specified by the National Television Standards Committee (NTSC) on the CIE chromaticity diagram as a denominator, as shown in fig. 2(b), as a percentage.
As shown in fig. 2(a), which is a schematic diagram of the CIE1931 color space, colors visible to human constitute a horseshoe shape in the CIE1931 color space, and three colors of red, green and blue (RGB) are respectively located at three end positions in the horseshoe shape. In CIE1931, colors are represented by color coordinates in the horizontal direction x and the vertical direction y, for example, the color coordinates of a standard white color are (x0.31, y0.33), the color coordinates of three colors of red, green and blue are (x0.67, y0.33), (x0.21, y0.71), (x0.14, y0.08), and the color gamut NTSC is a triangular color region formed by connecting the three color coordinates.
The color gamut of the display screen is the most important parameter for evaluating the display effect of the display screen, and is the proportion of the total color of the display screen in the NTSC color gamut. The larger the color gamut of the display screen is, the richer the colors which can be displayed by the display screen are; the smaller the color gamut of the display screen, the less colors the display screen can display. The color gamut of the liquid crystal display screen, which is subject to the color gamut of the backlight of the liquid crystal display screen, and the color gamut of the AMOLED display screen, depends on the luminescent material. No matter the liquid crystal display screen or the AMOLED display screen is manufactured, the color gamut of the display screen is uniquely determined after the display screen is manufactured.
The color gamut of the display screen lays a foundation for the display screen to display rich colors, and the color expression of the display screen under different brightness is determined by the gamma of the display screen. The display screen needs to be matched with a proper gamma to display the best display effect under the condition that the display screen displays different brightness and different pictures. Therefore, in the embodiment of the present application, the gamma parameter of the display screen needs to be corrected to ensure the display effect of the display screen in various brightness display modes.
It should be noted that, in the human evolution process, the human eye forms a characteristic: in a low-brightness environment, the LED display is sensitive to brightness change and can sense small brightness difference; in a high-brightness environment, the LED display is insensitive to brightness change, and human eyes can distinguish when the brightness change is large. This property is called the gamma property of the human eye. For a display screen, the output brightness and the input gamma voltage are basically in a linear relationship. From the brightest white picture to the darkest black picture, the brightness is evenly divided into n equal parts, and then n-level gray scale pictures are formed. Due to the above-mentioned characteristics of human eyes, the gray scale of the uniform n equal divisions appears to human eyes as an image shown in fig. 2(c), and the division is smaller in the high-luminance part, and vice versa in the low-luminance part.
It can be understood that due to the non-linear perception of brightness by human eyes, if a uniformly changing brightness perception is to be obtained, the brightness displayed on the display screen needs to be non-uniformly changed to adapt to the gamma characteristic of human eyes, the non-linear relation parameter of the brightness and the gray scale degree is the gamma parameter, and the curve drawn according to the gamma parameter is called a gamma curve. The gamma parameter describes a nonlinear relationship between brightness and gray scale, i.e., a nonlinear relationship between brightness and gamma voltage, and can simplify the brightness and gamma input voltage of the display screen into the following formula:
Output=k×InputGamma
wherein k is a constant and is fixed for each display screen, Input is the Gamma voltage Input to the display screen, Output is the Output brightness of the display screen, and Gamma is the Gamma parameter of the display screen. The display corrected by the Gamma parameter can accurately display the brightness of gray scales with different grades.
The gamma parameter that enables the display panel to correctly display the gray scale image is referred to as an optimal gamma parameter of the display panel. In the embodiment of the present application, the reference correction value refers to an optimal gamma parameter obtained by performing gamma correction in the display screen reference mode.
In the embodiment of the present application, when performing gamma correction on a display screen, a measurement principle needs to be followed, that is, under the condition that the maximum brightness value of the display screen is fixed, the maximum brightness range is divided into n gray scales, and it is ensured that color coordinates of different gray scale pictures are kept stable and unchanged or are stable within a preset error range. For example, when the display screen is corrected in the normal display mode of the display screen, firstly, the maximum brightness value of the display screen in the normal display mode is determined, a brightness range between 0 value and the maximum brightness value is divided into n gray scales, brightness values and color coordinates corresponding to the gray scales are preset, then gamma voltages corresponding to different gamma values are input into the display screen to debug the display screen, and then the gamma values which enable the brightness of the n gray scales to be in a preset gamma curve and enable the color coordinates of the gray scales to be in the preset range are determined as the reference correction value.
For example, the maximum brightness value corresponding to the normal display mode of the display screen is 500cd/m2Then 0-500cd/m can be used2The brightness range of the display is divided into 255 gray scales, and the brightness values corresponding to the 255 gray scales and the brightness values of various colors in the range of 0-500cd/m are preset2The color coordinate range in the luminance range, for example, the color coordinate range of white is preset such that x is between 0.28 and 0.32 and y is between 0.29 and 0.33. Then inputting different gamma voltages to correct the display screen, when the gamma voltage corresponding to a certain gamma value makes the brightness gamma curve of 255 gray scales the same as the gamma curve corresponding to the gamma value, and simultaneously the color coordinates of various colors displayed in each gray scale are in a preset range, namely, the picture is displayedThe gamma value may be determined as the reference correction value if the color display is normal.
It should be noted that the above examples are only illustrative and should not be construed as limiting the present application. In correcting the display screen, the error range of the color coordinates should be determined to be a small value so that the obtained reference correction value is more accurate. In practical use, the error range of the color coordinate can be preset according to actual needs, which is not limited in the embodiment of the present application.
And 103, acquiring an offset correction value corresponding to the display screen reference mode.
The display screen reference mode refers to other luminance display modes of the display screen, and there may be a plurality of reference modes, such as a normally bright mode (AOD), a High Bright Mode (HBM), and the like, and in the normally bright mode of the display screen, the maximum luminance value is generally 40-50cd/m2In the high brightness mode of the display screen, the maximum brightness value can reach 800cd/m2
The offset correction value corresponding to the reference pattern refers to an offset between the correction value in the reference pattern and the reference correction value. When gamma correction is performed on the display screen, the offset correction value refers to the offset of the optimal gamma parameter corresponding to the reference mode and the optimal gamma parameter corresponding to the reference mode.
It should be noted that, when the electronic device where the display screen is located receives a display screen brightness display mode modification instruction input by a user, the electronic device may automatically obtain an offset correction value corresponding to a reference mode to which the user needs to adjust, perform automatic correction on the display screen, and further change the correction value corresponding to the display screen into a correction value corresponding to the reference mode, so as to ensure a display effect of the display screen in different brightness display modes.
In this embodiment of the application, the offset correction value corresponding to the reference mode of the display screen may be obtained through a large amount of experimental data and preset in the electronic device where the display screen is located, so as to be directly obtained from the storage component of the electronic device when the reference mode of the display screen is corrected. That is, in a possible implementation form of the embodiment of the present application, the step 103 may include:
and acquiring the offset correction value corresponding to the reference mode by inquiring a preset comparison table.
It should be noted that the preset lookup table includes the reference pattern and the offset correction value corresponding thereto. For example, the reference mode includes a normal bright mode and a bright mode, and the preset comparison table may include that the offset correction value corresponding to the normal bright mode is 0.2, and the offset correction value corresponding to the bright mode is 0.1.
Further, the display screen may be corrected in the reference mode and the reference mode of the display screen respectively in the experimental stage, and the offset correction value corresponding to the reference mode may be determined according to the obtained reference correction value and the correction value corresponding to the reference mode. That is, in a possible implementation form of the embodiment of the present application, the preset comparison table may be obtained through the following steps:
correcting the display screen in the reference mode to obtain a reference sample correction value in the reference mode;
correcting the display screen in the reference mode to obtain a reference sample correction value in the reference mode;
generating the offset correction value from the reference sample correction value and the reference sample correction value.
In a possible implementation form of the embodiment, in the reference mode and each reference mode of the display screen, the display screen may be corrected respectively to obtain a reference correction value corresponding to the reference mode and a reference sample correction value corresponding to each reference mode, and a difference value between each reference sample correction value and the reference correction value is determined as an offset correction value corresponding to each reference mode of the display screen, and is preset in the comparison table.
For example, the reference mode of the display screen is a normal display mode, the reference mode is a normal bright mode and a highlight mode, and the correction mode is gamma correction, and it is determined through experiments that the reference correction value corresponding to the reference mode of the display screen is 2.2, the correction value corresponding to the normal bright mode is 2.4, and the correction value corresponding to the highlight mode is 2.3, then the offset correction value corresponding to the normal bright mode of the display screen is 0.2, and the offset correction value corresponding to the highlight mode of the display screen is 0.1.
And 104, acquiring a correction value corresponding to the reference mode according to the reference correction value and the offset correction value corresponding to the reference mode.
In the embodiment of the application, after the reference correction value corresponding to the reference mode and the offset correction value corresponding to the reference mode of the display screen are determined, the offset correction value corresponding to the reference mode can be determined according to the offset correction value corresponding to the reference mode and the reference correction value.
For example, the offset correction value corresponding to the reference pattern is a difference between the correction value corresponding to the reference pattern and the reference correction value, the reference correction value is 2.2, the offset correction value corresponding to the reference pattern is 0.1, and the correction value corresponding to the reference pattern is 2.3.
According to the correction optimization method for the display screen, the display screen can be controlled to enter the reference mode, the display screen is corrected in the reference mode to generate the reference correction value, then the offset correction value corresponding to the reference mode of the display screen is obtained, and then the correction value corresponding to the reference mode is obtained according to the reference correction value and the offset correction value corresponding to the reference mode. Therefore, the calibration value corresponding to the reference mode can be obtained according to the generated reference calibration value and the preset offset calibration value corresponding to the reference mode by once correcting the display screen in the reference mode, so that the times of correction are reduced, the correction efficiency and the production capacity are improved, the display image quality and the optical effect of the display screen are ensured, and the user experience is improved.
In a possible implementation form of the present application, a large number of display screen samples may be corrected in the reference mode and the reference mode respectively in an experimental stage, and an offset correction value corresponding to the reference mode is determined according to the obtained large number of reference correction values and the correction value corresponding to the reference mode, so as to improve accuracy of correction of the display screen and further improve a display effect of the display screen.
The method for correcting and optimizing the display screen provided in the embodiment of the present application is further described below with reference to fig. 3.
Fig. 3 is a flowchart illustrating another correction optimization method for a display screen according to an embodiment of the present disclosure.
As shown in fig. 3, the correction optimization method for the display screen includes the following steps:
step 301, correcting the N display screens in a reference mode respectively to obtain N reference sample correction values in the reference mode, where N is a positive integer greater than 1.
In a possible implementation form of the embodiment of the application, a large amount of experimental data may be obtained by correcting a large amount of display screen samples in various luminance display modes, and mathematical processing may be performed according to the obtained large amount of experimental data to obtain a more accurate difference between a calibration value corresponding to a display screen reference mode and a reference correction value corresponding to a reference mode, that is, an offset correction value corresponding to the reference mode. Therefore, N may be a larger value, such as 100, in the embodiment of the present application.
It should be noted that, in order to ensure the accuracy of the correction value corresponding to the reference mode of the display screen, a correct reference correction value must be obtained. Since the normal display mode of the display screen is the primary detection item of the display quality of the display screen, in the embodiment of the present application, the reference mode may be the normal display mode, and in the normal display mode, the correction is performed on each display screen to obtain the reference sample correction value of each display screen.
Step 302, correcting the N display screens in the reference mode respectively to obtain N reference sample correction values in the reference mode.
It should be noted that, in order to make the display screen perform correction only once in the reference mode during the automatic correction process, and obtain correction values of other reference modes of the display screen, so as to improve the correction efficiency, a large number of display screen samples may be corrected in the reference mode in the experimental stage, so as to obtain a difference between each reference mode and the reference sample correction value corresponding to the display screen reference mode corresponding thereto. Therefore, in the embodiment of the present application, each display screen may be corrected to obtain a reference sample correction value corresponding to each display screen in each reference mode.
For example, the number of the display screen samples is 100, and the reference modes of the display screen include a normally bright mode and a highlight mode, and then the 100 display screens need to be corrected in the normally bright mode and the highlight mode, respectively, so as to obtain the reference sample correction values respectively corresponding to each display screen in the normally bright mode and the highlight mode.
Step 303, generating the offset correction value according to the N reference sample correction values and the N reference sample correction values.
In this embodiment of the application, after the N display screen samples are respectively corrected in the reference mode and the reference modes, a difference between the reference sample correction value corresponding to each reference mode of each display screen and the reference sample correction value corresponding thereto may be determined according to the obtained reference sample correction value and the reference sample correction value, so as to determine an average value of the differences between the reference sample correction value corresponding to each reference mode of the N display screens and the reference sample correction value corresponding thereto, and determine the average value as the offset correction value corresponding to the reference mode.
For example, the number N of the display screen samples is 3, the reference mode of the display screen is a normal display mode, the reference mode is a normal bright mode and a bright mode, the reference correction values of the display screens a, B and c in the normal display mode are N1, N2 and N3, the reference sample correction values in the normal bright mode are a1, a2 and A3, the reference sample correction values in the bright mode are B1, B2 and B3, respectively, and the offset correction value corresponding to the normal bright mode is Δ N1 ═ [ (a1-N1) + (a2-N2) + (A3-N3) ]/3, and the offset correction value corresponding to the bright mode is Δ N2 ═ [ (B1-N1) + (B2-N2) + (B3-N67 3) ]/3.
In another possible implementation form of the embodiment of the present application, a mathematical expectation of a difference between the N reference sample correction values and the N reference sample correction values may be determined as the offset correction value corresponding to the reference pattern, so as to improve accuracy of the correction value corresponding to the reference pattern determined according to the offset correction value.
And 304, controlling the display screen to enter a reference mode, and correcting the display screen in the reference mode to generate a reference correction value.
And 305, acquiring a correction value corresponding to the reference mode according to the reference correction value and the offset correction value corresponding to the reference mode.
The detailed implementation process and principle of the steps 304-305 can refer to the detailed description of the above embodiments, and are not described herein again.
According to the correction optimization method for the display screen, provided by the embodiment of the application, N display screens can be respectively corrected in the reference mode to obtain N reference sample correction values in the reference mode, then the offset correction values are generated according to the N reference sample correction values and the N reference sample correction values to generate a preset comparison table, and further, when the display screens are automatically corrected, the correction values corresponding to the reference mode are determined according to the reference correction values corresponding to the reference mode and the offset correction values corresponding to the reference mode. Therefore, a large number of display screen samples are corrected in the reference mode and the reference mode respectively, and the obtained reference sample correction value are subjected to mathematical processing to determine the offset correction value corresponding to the reference mode, so that the correction times during automatic correction of the display screen are reduced, the correction efficiency and the productivity are improved, the accuracy of the correction values in various brightness display modes is further improved, the display image quality and the optical effect of the display screen are ensured, and the user experience is improved.
In order to implement the above embodiments, the present application further provides a correction optimization device for a display screen.
Fig. 4 is a schematic structural diagram of a correction optimization device for a display screen according to an embodiment of the present application.
As shown in fig. 4, the correction optimizing apparatus 40 for a display screen includes:
the control module 41 is used for controlling the display screen to enter a reference mode;
a correction module 42, configured to correct the display screen in the reference mode to generate a reference correction value;
a first obtaining module 43, configured to obtain an offset correction value corresponding to the display screen reference mode;
and a second obtaining module 44, configured to obtain a correction value corresponding to the reference pattern according to the reference correction value and the offset correction value corresponding to the reference pattern.
In practical use, the correction optimization device for a display screen provided by the embodiment of the present application may be configured in an electronic device to execute the aforementioned correction optimization method for a display screen.
The correction optimization device for the display screen, provided by the embodiment of the application, can control the display screen to enter the reference mode, correct the display screen in the reference mode to generate the reference correction value, then obtain the offset correction value corresponding to the reference mode of the display screen, and further obtain the correction value corresponding to the reference mode according to the reference correction value and the offset correction value corresponding to the reference mode. Therefore, the calibration value corresponding to the reference mode can be obtained according to the generated reference calibration value and the preset offset calibration value corresponding to the reference mode by once correcting the display screen in the reference mode, so that the times of correction are reduced, the correction efficiency and the production capacity are improved, the display image quality and the optical effect of the display screen are ensured, and the user experience is improved.
In one possible implementation form of the present application, the correction is gamma correction, and the reference mode is a normal display mode.
In a possible implementation form of the present application, the first obtaining module 43 includes:
and the acquisition unit is used for acquiring the offset correction value corresponding to the reference mode by inquiring a preset comparison table.
In a possible implementation form of the present application, the correction optimizing apparatus 40 for a display screen further includes:
the third acquisition module is used for correcting the display screen in the reference mode to obtain a reference sample correction value in the reference mode;
the fourth acquisition module is used for correcting the display screen in the reference mode to obtain a reference sample correction value in the reference mode;
a generating module to generate the offset correction value from the reference sample correction value and the reference sample correction value.
Further, in another possible implementation form of the present application, there are N display screens, where N is a positive integer greater than 1, and the third obtaining module is further configured to:
correcting the N display screens in the reference mode respectively to obtain N reference sample correction values in the reference mode;
correspondingly, the fourth obtaining module is further configured to:
correcting the N display screens in the reference mode respectively to obtain N reference sample correction values in the reference mode;
correspondingly, the generating module is further configured to:
generating the offset correction value from the N reference sample correction values and the N reference sample correction values.
Further, in yet another possible implementation form of the present application, there are a plurality of the reference modes.
It should be noted that the foregoing explanation of the embodiment of the display screen correction optimization method shown in fig. 1 and fig. 3 is also applicable to the display screen correction optimization apparatus 40 of this embodiment, and is not repeated here.
The correction optimization device for the display screen, provided by the embodiment of the application, can respectively correct N display screens in the reference mode to obtain N reference sample correction values in the reference mode, and then generate the offset correction value according to the N reference sample correction values and generate a preset comparison table, and further determine a correction value corresponding to the reference mode according to the reference correction value corresponding to the reference mode and the offset correction value corresponding to the reference mode when the display screen is automatically corrected. Therefore, a large number of display screen samples are corrected in the reference mode and the reference mode respectively, and the obtained reference sample correction value are subjected to mathematical processing to determine the offset correction value corresponding to the reference mode, so that the correction times during automatic correction of the display screen are reduced, the correction efficiency and the productivity are improved, the accuracy of the correction values in various brightness display modes is further improved, the display image quality and the optical effect of the display screen are ensured, and the user experience is improved.
In order to implement the above embodiments, the present application further provides an electronic device.
Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
As shown in fig. 5, the electronic device 200 includes:
a memory 210 and a processor 220, a bus 230 connecting different components (including the memory 210 and the processor 220), wherein the memory 210 stores a computer program, and when the processor 220 executes the program, the method for correcting and optimizing the display screen according to the embodiment of the present application is implemented.
Bus 230 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, micro-channel architecture (MAC) bus, enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.
Electronic device 200 typically includes a variety of electronic device readable media. Such media may be any available media that is accessible by electronic device 200 and includes both volatile and nonvolatile media, removable and non-removable media.
Memory 210 may also include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)240 and/or cache memory 250. The electronic device 200 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 260 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, commonly referred to as a "hard drive"). Although not shown in FIG. 5, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 230 by one or more data media interfaces. Memory 210 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the application.
A program/utility 280 having a set (at least one) of program modules 270, including but not limited to an operating system, one or more application programs, other program modules, and program data, each of which or some combination thereof may comprise an implementation of a network environment, may be stored in, for example, the memory 210. The program modules 270 generally perform the functions and/or methodologies of the embodiments described herein.
Electronic device 200 may also communicate with one or more external devices 290 (e.g., keyboard, pointing device, display 291, etc.), with one or more devices that enable a user to interact with electronic device 200, and/or with any devices (e.g., network card, modem, etc.) that enable electronic device 200 to communicate with one or more other computing devices. Such communication may occur via input/output (I/O) interfaces 292. Also, the electronic device 200 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the Internet) via the network adapter 293. As shown, the network adapter 293 communicates with the other modules of the electronic device 200 via the bus 230. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 200, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
The processor 220 executes various functional applications and data processing by executing programs stored in the memory 210.
It should be noted that, for the implementation process and the technical principle of the electronic device of this embodiment, reference is made to the foregoing explanation of the method for correcting and optimizing the display screen of the embodiment of this application, and details are not described here again.
The electronic device provided by the embodiment of the application can execute the correction optimization method for the display screen as described above, control the display screen to enter the reference mode, correct the display screen in the reference mode to generate the reference correction value, then acquire the offset correction value corresponding to the reference mode of the display screen, and further acquire the correction value corresponding to the reference mode according to the reference correction value and the offset correction value corresponding to the reference mode. Therefore, the calibration value corresponding to the reference mode can be obtained according to the generated reference calibration value and the preset offset calibration value corresponding to the reference mode by once correcting the display screen in the reference mode, so that the times of correction are reduced, the correction efficiency and the production capacity are improved, the display image quality and the optical effect of the display screen are ensured, and the user experience is improved.
In order to implement the above embodiments, the present application also proposes a computer-readable storage medium.
The computer readable storage medium stores thereon a computer program, and the computer program is executed by a processor to implement the method for correcting and optimizing the display screen according to the embodiment of the present application.
In order to implement the foregoing embodiments, a further embodiment of the present application provides a computer program, which when executed by a processor, implements the method for correcting and optimizing a display screen according to the embodiments of the present application.
In an alternative implementation, the embodiments may be implemented in any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the consumer electronic device, partly on the consumer electronic device, as a stand-alone software package, partly on the consumer electronic device and partly on a remote electronic device, or entirely on the remote electronic device or server. In the case of remote electronic devices, the remote electronic devices may be connected to the consumer electronic device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external electronic device (e.g., through the internet using an internet service provider).
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (7)

1. A correction optimization method for a display screen is characterized by comprising the following steps:
controlling the display screen to enter a reference mode;
correcting the display screen in the reference mode to generate a reference correction value;
acquiring an offset correction value corresponding to the display screen reference mode; the acquiring offset correction values corresponding to the display screen reference mode comprises: acquiring offset correction values corresponding to the reference modes by inquiring a preset comparison table, wherein the number of the display screens is N, N is a positive integer greater than 1, and the preset comparison table is acquired by the following steps: correcting the N display screens in the reference mode respectively to obtain N reference sample correction values in the reference mode; correcting the N display screens in the reference mode respectively to obtain N reference sample correction values in the reference mode; generating the offset correction value from the N reference sample correction values and the N reference sample correction values; and
and acquiring a correction value corresponding to the reference mode according to the reference correction value and the offset correction value corresponding to the reference mode.
2. The correction optimization method for a display screen according to claim 1, wherein the correction is gamma correction and the reference mode is a normal display mode.
3. The correction optimization method for display screen according to any one of claims 1-2, characterized in that there are a plurality of reference patterns.
4. A device for correcting and optimizing a display screen, comprising:
the control module is used for controlling the display screen to enter a reference mode;
the correction module is used for correcting the display screen in the reference mode to generate a reference correction value;
the first acquisition module is used for acquiring an offset correction value corresponding to the display screen reference mode; the first obtaining module includes: the device comprises an acquisition unit, a comparison unit and a processing unit, wherein the acquisition unit is used for acquiring offset correction values corresponding to a reference mode by inquiring a preset comparison table, N display screens are provided, N is a positive integer greater than 1, and the preset comparison table is obtained by the following steps: correcting the N display screens in the reference mode respectively to obtain N reference sample correction values in the reference mode; correcting the N display screens in the reference mode respectively to obtain N reference sample correction values in the reference mode; generating the offset correction value from the N reference sample correction values and the N reference sample correction values; and
and the second acquisition module is used for acquiring a correction value corresponding to the reference mode according to the reference correction value and the offset correction value corresponding to the reference mode.
5. The correction optimizing apparatus for a display screen according to claim 4, wherein the correction is gamma correction, and the reference mode is a normal display mode.
6. An electronic device, comprising: memory, processor and program stored on the memory and executable on the processor, which when executed by the processor implements a method of correction optimization for a display screen according to any one of claims 1 to 3.
7. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method for correction optimization of a display screen according to any one of claims 1 to 3.
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