CN110706648B - Image display adjustment method and system and display panel - Google Patents
Image display adjustment method and system and display panel Download PDFInfo
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- CN110706648B CN110706648B CN201910899040.7A CN201910899040A CN110706648B CN 110706648 B CN110706648 B CN 110706648B CN 201910899040 A CN201910899040 A CN 201910899040A CN 110706648 B CN110706648 B CN 110706648B
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
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Abstract
The embodiment of the invention relates to the technical field of image display, and discloses an image display adjusting method, an image display adjusting system and a display panel, wherein the image display adjusting method comprises the following steps: carrying out at least one brightness adjustment on the display device, wherein the brightness adjustment comprises the following steps: carrying out pixel acquisition on a white picture displayed by the display device to obtain actual optical data of all sub-pixels in the white picture, wherein each color of sub-pixel corresponds to one actual optical data; obtaining compensated optical data of the sub-pixels according to the actual optical data, wherein each color sub-pixel corresponds to one compensated optical data; and performing brightness compensation on the white picture according to the compensation optical data. The image display adjusting method, the image display adjusting system and the display panel can avoid color cast of white pictures and realize uniformity of image picture display.
Description
Technical Field
The embodiment of the invention relates to the technical field of image display, in particular to an image display adjusting method, an image display adjusting system and a display panel.
Background
An OLED (Organic Light-Emitting Diode) is called an Organic electroluminescent Diode. The OLED display technology has many advantages, such as full solid state, active light emission, high contrast, ultra-thin, low power consumption, fast effect speed, wide working range, and easy implementation of flexible display and 3D display, and is currently applied to many display devices, for example, televisions and mobile devices. The current OLED display device also has a problem of display non-uniformity in luminance, which is mainly caused by non-uniformity of electrical properties of Thin Film Transistors (TFTs) in the back plate and power supply voltage Drop (IR Drop) generated when image driving is implemented.
The method for improving the non-uniformity of the display brightness of the OLED display device in the prior art needs to be improved, and therefore, a new method for adjusting the image display is needed to solve the above problems.
Disclosure of Invention
An object of embodiments of the present invention is to provide an image display adjustment method, system and display panel, which can avoid color cast of a white screen and achieve uniformity of image screen display.
In order to solve the above technical problem, an embodiment of the present invention provides an image display adjustment method, including:
carrying out at least one brightness adjustment on the display device, wherein the brightness adjustment comprises the following steps: carrying out pixel acquisition on a white picture displayed by the display device to obtain actual optical data of all sub-pixels in the white picture, wherein each color of sub-pixel corresponds to one actual optical data; obtaining compensated optical data of the sub-pixels according to the actual optical data, wherein each color sub-pixel corresponds to one compensated optical data; and performing brightness compensation on the white picture according to the compensation optical data.
In addition, the pixel acquisition of the white picture displayed by the display device specifically includes: carrying out pixel acquisition on a plurality of white pictures with different gray scales displayed by the display device; the obtaining of the actual optical data of all the sub-pixels in the white picture specifically includes: actual optical data of all sub-pixels in the white picture of each gray scale is obtained. The pixel acquisition is carried out on the white pictures with different gray scales displayed by the display device, so that the brightness of the different gray scales of each sub-pixel can be adjusted, the phenomenon of uneven brightness cannot occur on the white pictures with the gray scales of the display device, and the uniformity of image picture display is further realized.
In addition, the sub-pixels include a blue sub-pixel, a red sub-pixel, and a green sub-pixel; the obtaining of the actual optical data of all the sub-pixels in the white picture of each gray scale specifically includes: filtering the blue light emitted by the blue sub-pixel and the red light emitted by the red sub-pixel to obtain the actual optical data of the green sub-pixel in the white picture; filtering the blue light emitted by the blue sub-pixel and the green light emitted by the green sub-pixel to obtain the actual optical data of the red sub-pixel in the white picture; and filtering the blue light emitted by the green sub-pixel and the red light emitted by the red sub-pixel to obtain the actual optical data of the blue sub-pixel in the white picture. By the method, the actual optical data of the single-color sub-pixel under the white picture can be quickly and simply obtained.
In addition, the pixel acquisition of the white pictures with different gray scales displayed by the display device specifically includes: and carrying out pixel acquisition on the white picture with the equal gray scale interval displayed by the display device. By the method, pixel acquisition is not required to be carried out on the white picture of each gray scale, and the workload of pixel acquisition and subsequent calculation compensation of optical data is reduced under the condition of ensuring the uniformity of image picture display, so that the image display adjusting method provided by the embodiment is simpler.
In addition, the pixel acquisition of the white picture with the equal gray scale interval displayed by the display device specifically comprises: and carrying out pixel acquisition on the white picture of the 32 th, 64 th, 96 th, 128 th, 160 th, 192 th and 224 th gray levels in the 256 gray levels. By the method, the workload of pixel acquisition and subsequent calculation compensation of optical data is further reduced, and the image display adjustment method provided by the embodiment is simpler.
In addition, after the adjusting the brightness of the white picture according to the compensated optical data, the method further includes: judging whether the display effect of the white picture after brightness adjustment meets the preset requirement or not; and when the preset requirement is judged not to be met, executing the step of brightness adjustment until the display effect of the white picture after the brightness adjustment meets the preset requirement. By the method, the color cast of the white picture can be further avoided, and the white picture displayed by the display device is ensured to be free from abnormity.
In addition, the determining whether the display effect of the white picture after the brightness adjustment meets the preset requirement specifically includes: and judging whether the uniformity of the white picture after brightness adjustment is equal to a preset uniformity. Because the mura characteristics of the red, green and blue sub-pixels are different, after the white picture is subjected to brightness compensation (i.e., compensation data is written in the display device) according to the compensation optical data, the relationship among the red, green and blue sub-pixels may change, and the white light is composed of red light, green light and blue light with a specific brightness ratio, so that the compensation effect is affected after the relationship among the red, green and blue sub-pixels changes.
In addition, the determining whether the display effect of the white picture after the brightness adjustment meets the preset requirement specifically includes: judging whether the uniformity of the white picture after brightness adjustment is equal to a preset uniformity and whether the display brightness is equal to a preset brightness; judging that the display effect of the white picture after brightness adjustment does not meet the preset requirement, specifically comprising: and judging whether the uniformity of the white picture after brightness adjustment is not equal to the preset uniformity or the display brightness is not equal to the preset brightness. By the method, the accuracy of judging whether the display effect of the white picture meets the standard or not is improved, so that the display effect of the display device and the product yield are further improved.
An embodiment of the present invention also provides an image display adjustment system, including: a display device, a photographing device, and a filter device; the display device is used for displaying a white picture; the filtering device is arranged between the display device and the shooting device and is used for enabling the shooting device to shoot all single-color pictures under the white picture; the shooting device is used for carrying out pixel acquisition on a monochromatic picture to obtain actual optical data of sub-pixels in the monochromatic picture and obtain compensation optical data of the sub-pixels according to the actual optical data; the display device is further configured to perform brightness compensation according to the compensated optical data.
Embodiments of the present invention also provide a display panel including: the screen comprises a screen body and at least one processor arranged in the screen body; and a memory communicatively coupled to the at least one processor; the memory is used for storing compensation optical data, the compensation optical data is obtained according to actual optical data, and the actual optical data is obtained by carrying out pixel acquisition on a white picture displayed by the display device; the processor is used for performing brightness compensation on the white picture according to the compensation optical data stored by the memory.
Compared with the prior art, the embodiment of the invention acquires the actual optical data of all the sub-pixels in the white picture by acquiring the pixel brightness of the white picture displayed by the display device, so that the acquired actual optical data of the sub-pixels are the brightness data of the sub-pixels with various colors in the white picture (all the sub-pixels emit light), thereby ensuring the accuracy of data acquisition, and acquires the compensation optical data of the sub-pixels according to the actual optical data, because the compensation optical data is the brightness data of the sub-pixels in the white picture which need to be compensated, the brightness of the white picture is adjusted by the compensation optical data, the brightness data of the white picture which actually need to be compensated is compensated, so that the brightness of the white picture after brightness adjustment is uniform, the white picture is not biased, thereby realizing the uniformity of image picture display, the method avoids the situation that the single color is normal after the brightness compensation of the white picture and the white picture is color cast due to different power supply voltage drops of the white picture and the R/G/B single color picture when the brightness data corresponding to the luminous pixels of the display device is collected when the single color picture (the same color pixel emits light and other color pixels do not emit light) of the display device.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a flowchart of an image display adjustment method according to a first embodiment of the present invention;
fig. 2 is a flowchart of an image display adjustment method according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an image display adjustment system according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a display panel according to a fourth embodiment of the present invention.
Detailed Description
In order to solve the display non-uniformity problem of the OLED display device in terms of brightness, an image display control technique is generally adopted to improve image driving. The image display control method includes internal compensation and external compensation. The internal compensation refers to a method of compensating inside the sub-pixel using a sub-circuit constructed with TFTs. The external compensation is a method of extracting TFT and OLED signals to the outside of the backplane and then performing image display control through an external application integrated circuit (ASIC circuit). Generally, the structure and driving method of the internally compensated sub-pixel are complex, and in a display device with large size, high resolution and high refresh rate, the internally compensated method causes the problems of reduced aperture ratio and slow driving speed. The external compensation mode has the advantages of simple sub-pixel structure, high driving speed and good compensation effect, so that the external compensation is a better compensation scheme in large-size OLED display.
The external compensation is divided into optical extraction compensation and electrical extraction compensation. The optical extraction type is to extract the brightness signal by an optical CCD photographing method after the back plate is lightened, and the electrical extraction type is to extract the electrical signals of the TFT and the OLED by an induction circuit of a driving chip. The two methods extract different kinds of signals, and thus the data processing modes are different. The optical extraction method has the advantages of simple structure and flexible method, and is widely adopted at present.
The existing method for optically compensating the image brightness is to collect R/G/B monochromatic brightness data through a CCD camera and then optically extract through a software algorithm, so that the effect of eliminating uneven brightness of a display picture can be achieved, but because IR Drop of monochromatic and white pictures is different, when the difference between IR Drop of the monochromatic picture and IR Drop of the white picture of a module is large, the color of the white picture after compensation can be deviated by the existing algorithm, and the display effect of the module is influenced.
Therefore, an embodiment of the present invention provides an image display adjustment method, which includes performing pixel brightness acquisition on a white picture displayed by a display device to obtain actual optical data of all sub-pixels in the white picture, then obtaining compensated optical data of the sub-pixels according to the actual optical data, and finally performing brightness adjustment on the white picture according to the compensated optical data. The invention can avoid the color cast of the white picture and realize the uniformity of the image picture display.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present invention in its various embodiments. However, the technical solution claimed in the present invention can be implemented without these technical details and various changes and modifications based on the following embodiments.
A first embodiment of the present invention relates to an image display adjustment method, and a specific flow is shown in fig. 1, including:
s101: and carrying out pixel acquisition on the white picture displayed by the display device to obtain the actual optical data of all the sub-pixels in the white picture.
In step S101, the actual optical data may be luminance data of the sub-pixel, or may be a chrominance excitation value of the sub-pixel, and those skilled in the art can understand that the actual optical data only needs to be optical data capable of reflecting the brightness of the white screen, and no specific limitation is made on what kind of data the actual optical data is. Taking the actual optical data as the actual luminance data as an example, in this embodiment, the white picture displayed by the display device may be subjected to pixel acquisition in the following manner: the display picture of the display device is shot by using a high-resolution and high-precision CCD camera, pixel color distribution characteristics are analyzed according to data collected by the camera, and actual optical data of all sub-pixels in a white picture are identified according to a related algorithm.
It is worth mentioning that the pixel collection of the white picture displayed by the display device may be: carrying out pixel acquisition on a plurality of white pictures with different gray scales displayed by a display device; the obtaining of the actual optical data of all the sub-pixels in the white picture specifically includes: actual optical data of all sub-pixels in the white picture of each gray scale is obtained. Specifically, taking actual optical data as an example of actual luminance data, a point on an image displayed by a display device is generally seen to be composed of three sub-pixels of red, green and blue, a light source behind each sub-pixel can display different luminance levels, gray scales represent different levels of luminance from the lightest level to the darkest level, and the more levels, the more displayed image effect is thinner. For example, 256 luminance levels are referred to as 256 gray levels, and the color change of each dot on the image represents the change of gray levels of three sub-pixels constituting the dot. The pixel acquisition is carried out on the white pictures with different gray scales displayed by the display device, so that the brightness of the different gray scales of each sub-pixel can be adjusted, the phenomenon of uneven brightness cannot occur on the white pictures with the gray scales of the display device, and the uniformity of image picture display is further realized.
Preferably, in this embodiment, the pixel collection of the white pictures with different gray scales displayed by the display device may be: and carrying out pixel acquisition on the white picture with the equal gray scale interval displayed by the display device. By the method, pixel acquisition is not required to be carried out on the white picture of each gray scale, and the workload of pixel acquisition and subsequent calculation compensation of optical data is reduced under the condition of ensuring the uniformity of image picture display, so that the image display adjusting method provided by the embodiment is simpler. It is to be understood that the pixel collection method in the present embodiment is not limited to pixel collection for white pictures with equal gray scale intervals, and pixel collection for white pictures with unequal gray scale intervals (for example, pixel collection for white pictures with 2 nd, 40 th, 80 th, 150 th, and 224 th gray scales in 256 gray scales) may also be performed, so as to achieve the same technical effect.
Preferably, the pixel acquisition of the white picture with the equal gray scale interval displayed by the display device specifically includes: and acquiring white pictures of 32 th, 64 th, 96 th, 128 th, 160 th, 192 th and 224 th gray levels in the 256 gray levels. That is to say, the white frames of 32 th to 224 th gray levels in the 256 gray levels are subjected to pixel acquisition at equal gray level intervals, so that the workload of pixel acquisition and subsequent calculation of compensation optical data is further reduced, and the image display adjustment method provided by the embodiment is simpler. It is understood that the collection of the white frames with the 32 th to 224 th gray levels is only an exemplary manner, and the same technical effects can be achieved by collecting the white frames with the 30 th to 220 th gray levels, for example, and the present embodiment is not limited thereto.
Specifically, the sub-pixels include a blue sub-pixel, a red sub-pixel and a green sub-pixel; the obtaining of the actual optical data of all the sub-pixels in the white picture of each gray scale may be: filtering the blue light emitted by the blue sub-pixel and the red light emitted by the red sub-pixel to obtain the actual optical data of the green sub-pixel in the white picture; filtering the blue light emitted by the blue sub-pixel and the green light emitted by the green sub-pixel to obtain the actual optical data of the red sub-pixel in the white picture; and filtering the blue light emitted by the green sub-pixel and the red light emitted by the red sub-pixel to obtain the actual optical data of the blue sub-pixel in the white picture. In this embodiment, a rotating mechanism with a color filter may be disposed between the CCD camera and the display device, the CCD camera is a monochrome CCD camera, the color filter includes a blue filter, a red filter and a green filter, and when the rotating mechanism rotates the blue filter to a position between the CCD camera and the display device, the CCD camera only receives the blue light, thereby obtaining actual optical data of the blue sub-pixel; when the rotating mechanism rotates the green optical filter to a position between the CCD camera and the display device, the CCD camera only receives green light, and therefore actual optical data of the green sub-pixels are obtained; when the rotating mechanism rotates the red filter to a position between the CCD camera and the display device, the CCD camera only receives red light, and actual optical data of the red sub-pixel are obtained. It is worth mentioning that the monochrome CCD and the color filter are used, and a color CCD camera is not needed, so that the monochrome CCD camera with higher specification (high resolution and high precision) can be matched to support the module data acquisition with higher resolution.
S102: the compensated optical data for the sub-pixels is derived from the actual optical data.
Regarding step S102, specifically, taking the actual optical data as the actual luminance data and the compensated optical data as the compensated luminance data as an example, the embodiment may obtain the compensated luminance data of the sub-pixel according to the actual luminance data by the following manner: the schematic diagram of the original mura (large-area block-shaped brightness and darkness non-uniformity) and De-mura (internal compensation or external compensation) compensation data is preset, and when the input image is a single gray-scale picture (theoretically, the brightness of all pixels is the same), the compensation brightness data of the sub-pixels is obtained through the schematic diagram.
S103: and performing brightness compensation on the white picture according to the compensation optical data.
Regarding step S103, specifically, taking the compensated optical data as the compensated luminance data as an example, the embodiment can perform luminance compensation on the white picture according to the compensated optical data in the following manner: according to the brightness (theoretical brightness data of the sub-pixels) of the central area of the white picture, a certain gray-scale compensation value is added (brightness is improved) for the pixels in a darker area (actual brightness data of the sub-pixels is lower), and a certain gray-scale compensation value is reduced (brightness is reduced) for the pixels in a lighter area (actual brightness data of the sub-pixels is higher).
Compared with the prior art, the embodiment of the invention acquires the actual optical data of all the sub-pixels in the white picture by acquiring the pixel brightness of the white picture displayed by the display device, so that the acquired actual optical data of each sub-pixel is the brightness data of each sub-pixel in the white picture (all the sub-pixels emit light), the accuracy of data acquisition is ensured, the compensation optical data of the sub-pixels is acquired according to the actual optical data, because the compensation optical data is the brightness data of the sub-pixels in the white picture which need to be compensated, the brightness of the white picture is adjusted through the compensation optical data, and the brightness data of the white picture which need to be compensated is compensated, so that the brightness of the white picture after brightness adjustment is uniform, the white picture color cast cannot occur, and the uniformity of image picture display is realized, the method avoids the situation that the single color is normal after the brightness compensation of the white picture and the white picture is color cast due to different power supply voltage drops of the white picture and the R/G/B single color picture when the brightness data corresponding to the luminous pixels of the display device is collected when the single color picture (the same color pixel emits light and other color pixels do not emit light) of the display device.
A second embodiment of the present invention relates to an image display adjustment method, and is a further improvement on the first embodiment, and the specific improvement is that: in a second embodiment, after the adjusting the brightness of the white picture according to the compensated optical data, the method further includes: judging whether the display effect of the white picture after brightness adjustment meets the preset requirement or not; and when the preset requirement is judged not to be met, executing the step of brightness adjustment until the display effect of the white picture after the brightness adjustment meets the preset requirement. By the method, the color cast of the white picture can be further avoided, and the white picture displayed by the display device is ensured to be free from abnormity.
As shown in fig. 2, a specific flow of the present embodiment includes:
s201: and carrying out pixel acquisition on the white picture displayed by the display device to obtain the actual optical data of all the sub-pixels in the white picture.
S202: the compensated optical data for the sub-pixels is derived from the actual optical data.
S203: and performing brightness compensation on the white picture according to the compensation optical data.
Steps S201 to S203 in this embodiment are similar to steps S101 to S103 in the first embodiment, and are not described again to avoid repetition.
S204: judging whether the display brightness of the white picture after brightness adjustment meets a preset requirement, and if not, executing the step S201; and if the preset requirements are met, ending the process.
In step S204, specifically, in the present embodiment, the determining whether the display effect of the white frame after the brightness adjustment meets the preset requirement may be: and judging whether the uniformity of the white picture after brightness adjustment is equal to a preset uniformity. Because the mura characteristics of the red, green and blue sub-pixels are different, after the white picture is subjected to brightness compensation (i.e., compensation data is written in the display device) according to the compensation optical data, the relationship among the red, green and blue sub-pixels may change, and the white light is composed of red light, green light and blue light with a specific brightness ratio, so that the compensation effect is affected after the relationship among the red, green and blue sub-pixels changes.
It should be noted that, the judging whether the display effect of the white picture after the brightness adjustment meets the preset requirement may further include: judging whether the uniformity of the white picture after brightness adjustment is equal to a preset uniformity and whether the display brightness is equal to a preset brightness; judging that the display effect of the white picture after brightness adjustment does not meet the preset requirement, specifically comprising: and judging whether the uniformity of the white picture after brightness adjustment is not equal to the preset uniformity or the display brightness is not equal to the preset brightness. By the method, the accuracy of judging whether the display effect of the white picture meets the standard or not is improved, so that the display effect of the display device and the product yield are further improved.
For convenience of understanding, how to perform image display adjustment in the present embodiment will be specifically described below:
1. the display device sends a white picture of a certain set gray stage; 2. sequentially collecting brightness data of three pictures of the current gray scale R/G/B by rotating a rotating mechanism with a color filter; 3. repeating the step 1 and the step 2 to acquire all set gray scale R/G/B original data; 4. analyzing original data to calculate compensation data, writing the compensation data into a DDIC RAM, and starting a De-Mura function; 5. after the De-Mura function is started, white picture data are collected again, and whether the white picture has the problems of uneven brightness and color cast is analyzed; 6. and (5) if the problems of uneven brightness and color cast do not exist, directly writing compensation data into Flash (Flash means interactive vector diagram and network animation standard, and is creation software integrating animation creation and application program development), and if the problems of uneven brightness and color cast exist, starting the De-Mura function, and repeating the steps 1-5 until the white picture is free from the defects.
Compared with the prior art, the embodiment of the invention acquires the actual optical data of all the sub-pixels in the white picture by acquiring the pixel brightness of the white picture displayed by the display device, so that the acquired actual optical data of the sub-pixels are the brightness data of the sub-pixels with various colors in the white picture (all the sub-pixels emit light), thereby ensuring the accuracy of data acquisition, and acquires the compensation optical data of the sub-pixels according to the actual optical data, because the compensation optical data is the brightness data of the sub-pixels in the white picture which need to be compensated, the brightness of the white picture is adjusted by the compensation optical data, the brightness data of the white picture which actually need to be compensated is compensated, so that the brightness of the white picture after brightness adjustment is uniform, the white picture is not biased, thereby realizing the uniformity of image picture display, the method avoids the situation that the single color is normal after the brightness compensation of the white picture and the white picture is color cast due to different power supply voltage drops of the white picture and the R/G/B single color picture when the brightness data corresponding to the luminous pixels of the display device is collected when the single color picture (the same color pixel emits light and other color pixels do not emit light) of the display device.
A third embodiment of the present invention relates to an image display adjustment system 100, and fig. 3 shows a positional relationship among a display device 1, an imaging device 2, and a filter device 3. As shown in fig. 3, includes: a display device 1, an imaging device 2, and a filter device 3; the display device 1 is used for displaying a white picture; the filter device 3 is arranged between the display device 1 and the shooting device 2 and is used for enabling the shooting device 2 to shoot all single-color pictures under the white picture; the shooting device 2 is used for carrying out pixel acquisition on a monochromatic picture to obtain actual optical data of sub-pixels in the monochromatic picture, and the actual optical data is used for obtaining compensation optical data of the sub-pixels; the display device 1 is also used for brightness compensation based on the compensated optical data.
It can be understood that the photographing device 2 in this embodiment may be a monochrome CCD camera, the filtering device 3 may be a rotary table with a color filter, and the display device 1 may be a display device, and may be configured with a monochrome CCD camera of higher specification (high resolution and high precision) without a color CCD camera by using a monochrome CCD and a color filter, so as to support the module data acquisition of higher resolution.
A fourth embodiment of the present invention relates to a display panel 200, as shown in fig. 4, including: the screen body 11, at least one processor 12 arranged in the screen body 11; and a memory 13 communicatively coupled to the at least one processor 12; the memory 13 is configured to store compensated optical data, where the compensated optical data is obtained according to actual optical data obtained by performing pixel acquisition on a white picture displayed by the display device; the processor 12 is used for performing brightness compensation on the white picture according to the compensation optical data stored in the memory 13.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (8)
1. An image display adjustment method is characterized in that brightness adjustment is performed on a display device at least once, and the brightness adjustment steps are as follows:
carrying out pixel acquisition on a plurality of white pictures with different gray scales displayed by the display device, and filtering blue light emitted by a blue sub-pixel in the white pictures and red light emitted by a red sub-pixel in the white pictures to obtain actual optical data of a green sub-pixel in the white pictures; filtering the blue light emitted by the blue sub-pixel and the green light emitted by the green sub-pixel to obtain the actual optical data of the red sub-pixel in the white picture; filtering the blue light emitted by the green sub-pixel and the red light emitted by the red sub-pixel to obtain the actual optical data of the blue sub-pixel in the white picture;
obtaining the compensation optical data of the green sub-pixel according to the actual optical data of the green sub-pixel, obtaining the compensation optical data of the blue sub-pixel according to the actual optical data of the blue sub-pixel, and obtaining the compensation optical data of the red sub-pixel according to the actual optical data of the red sub-pixel;
and performing brightness compensation on the white picture according to the compensation optical data of the green sub-pixel, the compensation optical data of the blue sub-pixel and the compensation optical data of the red sub-pixel.
2. The image display adjustment method according to claim 1, wherein the pixel acquisition of the white pictures with different gray scales displayed by the display device specifically includes:
and carrying out pixel acquisition on the white picture with the equal gray scale interval displayed by the display device.
3. The image display adjustment method according to claim 2, wherein the pixel acquisition of the white picture with the equal gray scale interval displayed by the display device specifically includes:
and acquiring white pictures of 32 th, 64 th, 96 th, 128 th, 160 th, 192 th and 224 th gray levels in the 256 gray levels.
4. The image display adjustment method according to claim 1, further comprising, after the luminance compensation of the white picture based on the compensation optical data of the green sub-pixel, the compensation optical data of the blue sub-pixel, and the compensation optical data of the red sub-pixel:
judging whether the display effect of the white picture after brightness adjustment meets the preset requirement or not;
and when the preset requirement is judged not to be met, executing the step of brightness adjustment until the display effect of the white picture after the brightness adjustment meets the preset requirement.
5. The image display adjustment method according to claim 4, wherein the determining whether the display effect of the white picture after the brightness adjustment meets a preset requirement specifically comprises:
and judging whether the uniformity of the white picture after brightness adjustment is equal to a preset uniformity.
6. The image display adjustment method according to claim 4, wherein the determining whether the display effect of the white picture after the brightness adjustment meets a preset requirement specifically comprises:
judging whether the uniformity of the white picture after brightness adjustment is equal to a preset uniformity and whether the display brightness is equal to a preset brightness;
judging that the display effect of the white picture after brightness adjustment does not meet the preset requirement, specifically comprising:
and judging whether the uniformity of the white picture after brightness adjustment is not equal to the preset uniformity or the display brightness is not equal to the preset brightness.
7. An image display adjustment system, comprising: a display device, a photographing device, and a filter device;
the display device is used for displaying a white picture;
the filtering device is arranged between the display device and the shooting device and is used for enabling the shooting device to shoot all single-color pictures under the white picture;
the shooting device is used for carrying out pixel acquisition on the monochromatic picture, and filtering blue light emitted by a blue sub-pixel in the white picture and red light emitted by a red sub-pixel in the white picture to obtain actual optical data of the green sub-pixel in the monochromatic picture; filtering the blue light emitted by the blue sub-pixel and the green light emitted by the green sub-pixel to obtain the actual optical data of the red sub-pixel in the white picture; filtering the green light emitted by the green sub-pixel and the red light emitted by the red sub-pixel to obtain the actual optical data of the blue sub-pixel in the white picture, obtaining the compensation optical data of the green sub-pixel according to the actual optical data of the green sub-pixel, obtaining the compensation optical data of the blue sub-pixel according to the actual optical data of the blue sub-pixel, and obtaining the compensation optical data of the red sub-pixel according to the actual optical data of the red sub-pixel;
the display device is further used for performing brightness compensation on the white picture according to the compensation optical data of the green sub-pixel, the compensation optical data of the blue sub-pixel and the compensation optical data of the red sub-pixel.
8. A display panel, comprising: the screen comprises a screen body and at least one processor arranged in the screen body; and a memory communicatively coupled to the at least one processor;
the memory is configured to store compensated optical data, the compensated optical data being derived from actual optical data, the actual optical data being derived from the steps of: filtering blue light emitted by a blue sub-pixel in a white picture displayed by the display panel and red light emitted by a red sub-pixel in the white picture displayed by the display panel to obtain actual optical data of the green sub-pixel in the white picture displayed by the display panel; filtering the blue light emitted by the blue sub-pixel and the green light emitted by the green sub-pixel to obtain the actual optical data of the red sub-pixel in the white picture; filtering the green light emitted by the green sub-pixel and the red light emitted by the red sub-pixel to obtain the actual optical data of the blue sub-pixel in the white picture;
the processor is used for performing brightness compensation on the white picture according to the compensation optical data stored by the memory.
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| CN111462693B (en) * | 2020-04-17 | 2022-12-27 | 苏州佳智彩光电科技有限公司 | Method and system for performing external optical compensation on AMOLED curved screen |
| CN111968583A (en) * | 2020-07-23 | 2020-11-20 | 昆山国显光电有限公司 | Display panel brightness compensation control method and brightness compensation control system |
| CN113593479B (en) * | 2021-09-27 | 2022-01-07 | 华兴源创(成都)科技有限公司 | Sub-pixel level mura compensation method for display panel |
| CN114120906A (en) * | 2021-11-18 | 2022-03-01 | 广州国显科技有限公司 | Brightness compensation method and compensation device of display panel and electronic equipment |
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