CN115798402B - Pixel multiplexing-based brightness compensation method - Google Patents
Pixel multiplexing-based brightness compensation method Download PDFInfo
- Publication number
- CN115798402B CN115798402B CN202310101674.XA CN202310101674A CN115798402B CN 115798402 B CN115798402 B CN 115798402B CN 202310101674 A CN202310101674 A CN 202310101674A CN 115798402 B CN115798402 B CN 115798402B
- Authority
- CN
- China
- Prior art keywords
- brightness
- compensation
- display image
- image
- brightness compensation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
The invention discloses a brightness compensation method based on pixel multiplexing, and belongs to the technical field of LED virtual pixel display screen brightness compensation. The brightness compensation method based on pixel multiplexing comprises the following steps: s100, detecting whether a current display image is a grid or a straight line; s200, acquiring the initial brightness of the current image; s300, performing brightness compensation on the display image to obtain compensation brightness; s400, performing visual quality evaluation on the compensated image and generating compensated image output data. Compared with a virtual pixel multiplexing arrangement structure in a conventional LED display panel, the brightness compensation method based on pixel multiplexing can automatically adjust red, green and blue light emitting tube cores to the same brightness under the condition of screen display grids or straight lines, can effectively solve the problem of color lines in vision, improves the uniformity of the display screen grids and straight line images, and improves the display image effect.
Description
Technical Field
The invention relates to a brightness compensation method based on pixel multiplexing, and belongs to the technical field of LED virtual pixel display screen brightness compensation.
Background
Factors affecting the image clarity of a high-density LED display screen mainly include image spatial resolution, image display gradation resolution, pixel optical crosstalk, pixel edge fusion, etc., where the image spatial resolution is equivalent to the arrangement density of LED pixels in LED display. On the premise of three-fold multiplexing arrangement of pixels, when a white grid or a white straight line is displayed, as the multiplexing times of the light emitting tube cores are inconsistent, for example, in the case of displaying single-primary-color green, green of each column is multiplexed twice, the brightness is 50%, red Lan Fu adjacent to the green is used four times, the brightness is 25%, and the brightness of three colors of red, green and blue is inconsistent, so that color lines can be visually displayed. The human eye is sensitive to edge or bar objects, and when the displayed image is at different positions, the color lines appear in different colors due to the change of multiplexing times of the light emitting tube cores. The invention aims to design a brightness compensation method which meets the visual requirement of linear display.
Disclosure of Invention
The invention provides a brightness compensation method based on pixel multiplexing, which adopts an automatic calibration mode to solve the problem of visual color lines.
A pixel multiplexing-based brightness compensation method, the pixel multiplexing-based brightness compensation method comprising the steps of:
s100, detecting whether the current display image is a grid or a straight line, if so, executing S200;
s200, acquiring initial brightness of a current display image;
s300, performing brightness compensation on the display image to obtain compensated brightness data;
s400, performing visual quality evaluation on the compensated display image, judging whether the display image passes or not, and if the display image passes, completing brightness compensation; otherwise, returning to S300 to acquire compensation brightness data again, and performing secondary compensation.
Further, in S200, specifically, a camera and a luminance meter are used to collect luminance values of a grid or a line image of the current display image.
Further, in S300, specifically, adjacent die brightness compensation is performed on the display pixels, and the overall brightness is averagely distributed to the R, G, B brightness of three single colors based on the brightness information of the mixed colors collected by the camera, so as to obtain the compensated brightness.
Further, in S400, specifically, images before and after compensation are output, quality evaluation is performed on the images, and the actual effect of the compensation method is determined.
The invention has the beneficial effects that: compared with a virtual pixel multiplexing arrangement structure in a conventional LED display panel, the brightness compensation method based on pixel multiplexing can automatically adjust red, green and blue light emitting tube cores to the same brightness under the condition of screen display grids or straight lines, can effectively solve the problem of color lines in vision, improves the uniformity of the display screen grids and straight line images, and improves the display image effect.
Drawings
FIG. 1 is a flow chart of a brightness compensation method based on pixel multiplexing according to the present invention;
fig. 2 is a schematic diagram of an original pixel RGB three-primary color arrangement, wherein fig. 2 (a) is a pixel arrangement diagram of a pixel multiplexing RGB three-primary color, and fig. 2 (b) is a schematic diagram of a linear image display.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, a brightness compensation method based on pixel multiplexing includes the steps of:
s100, detecting whether a current display image is a grid or a straight line;
s200, acquiring the initial brightness of the current image;
s300, performing brightness compensation on the display image to obtain compensation brightness, wherein the brightness correction process of the three primary colors of red, green and blue is performed, and the problem of visual color lines is eliminated through brightness compensation;
s400, performing visual quality evaluation on the compensated image and generating compensated image output data.
Specifically, the brightness compensation method of the invention can carry out brightness correction and verification contrast and quality effect evaluation on color lines caused by different multiplexing times of the luminous tube cores when grid or linear images with pixel multiplexing arrangement are displayed, thereby improving the image display effect.
Further, in S200, specifically, the camera and the luminance meter are used to collect the luminance values of the grid or the straight line image, so as to obtain the initial luminance of the current image.
Specifically, the luminance value includes the effect of luminance on human eye vision, which is visually subjective luminance proportional to the logarithm of the intensity of the light stimulus. The brightness meter can be used for measuring accurate real brightness data, and the camera can be used for simply judging whether brightness difference exists before and after compensation.
Further, in S300, specifically, adjacent die brightness compensation is performed on the display pixels, and the overall brightness is averagely distributed to the R, G, B brightness of three single colors based on the brightness information of the mixed colors collected by the camera, so as to obtain the compensated brightness.
Further, in S400, specifically, images before and after compensation are output, quality evaluation is performed on the images, and the actual effect of the compensation method is determined.
Compared with a virtual pixel multiplexing arrangement structure in a conventional LED display panel, the brightness compensation method provided by the invention adopts an automatic calibration mode, and when a screen is displayed on a grid or in a straight line, the system automatically adjusts the red, green and blue light emitting tube cores to the same brightness, so that the problem of color lines in vision can be effectively solved, the uniformity of the screen grid and the straight line image is improved, and meanwhile, the image display effect is improved.
The invention solves the problems of inconsistent brightness of red, green and blue colors and visual color line occurrence caused by inconsistent multiplexing times of the luminous tube cores in algorithm when displaying a white grid or a white straight line on the premise of three-fold multiplexing arrangement of pixels in the prior art, and is a method for compensating the brightness of adjacent single-color tube cores of display pixels. The invention uses average brightness to replace R, G, B different brightness generated by original pixel multiplexing algorithm, and performs verification comparison with initial brightness corresponding to original pixel, performs visual quality evaluation on compensated display image, and generates compensated image output data.
Claims (3)
1. A brightness compensation method based on pixel multiplexing, characterized in that the brightness compensation method based on pixel multiplexing comprises the following steps:
s100, detecting whether the current display image is a grid or a straight line, if so, executing S200;
s200, acquiring initial brightness of a current display image;
s300, performing brightness compensation on the display image to obtain compensated brightness data;
s400, performing visual quality evaluation on the compensated display image, judging whether the display image passes or not, and if the display image passes, completing brightness compensation; otherwise, returning to S300 to acquire compensation brightness data again, performing secondary compensation,
in S300, specifically, adjacent die brightness compensation is performed on the display pixels, and the overall brightness is averagely distributed to R, G, B brightness of three single colors based on the brightness information of the mixed colors collected by the camera, so as to obtain compensated brightness.
2. The method according to claim 1, wherein in S200, specifically, a camera and a luminance meter are used to collect luminance values of a grid or a line image of the current display image.
3. The method according to claim 2, wherein in S400, specifically, the images before and after compensation are output, quality evaluation is performed on the images, and the actual effect of the compensation method is determined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310101674.XA CN115798402B (en) | 2023-02-13 | 2023-02-13 | Pixel multiplexing-based brightness compensation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310101674.XA CN115798402B (en) | 2023-02-13 | 2023-02-13 | Pixel multiplexing-based brightness compensation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115798402A CN115798402A (en) | 2023-03-14 |
| CN115798402B true CN115798402B (en) | 2023-06-16 |
Family
ID=85430908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310101674.XA Active CN115798402B (en) | 2023-02-13 | 2023-02-13 | Pixel multiplexing-based brightness compensation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115798402B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116935788B (en) * | 2023-09-15 | 2023-12-29 | 长春希达电子技术有限公司 | Color compensation method, storage medium and system based on pixel multiplexing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731194A (en) * | 2017-11-21 | 2018-02-23 | 深圳市华星光电半导体显示技术有限公司 | A kind of mura compensation methodes and device |
| CN107742496A (en) * | 2017-10-31 | 2018-02-27 | 武汉华星光电技术有限公司 | The ameliorative way and improvement system of the speckle phenomena of display picture |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060080945A (en) * | 2005-01-06 | 2006-07-12 | (주)이프러스 | Signal compensation method for image sensor |
| TWI307075B (en) * | 2005-01-06 | 2009-03-01 | Novatek Microelectronics Corp | Method and device for the compensation of gray level luminance |
| CN105261321A (en) * | 2015-09-18 | 2016-01-20 | 深圳市华星光电技术有限公司 | Pixel rendering method, pixel rendering device and display |
| CN106782315A (en) * | 2016-12-30 | 2017-05-31 | 上海天马有机发光显示技术有限公司 | A kind of rendering intent of pixel, apparatus and system |
| CN115294927B (en) * | 2022-09-28 | 2022-12-27 | 长春希达电子技术有限公司 | Color compensation method based on pixel multiplexing, storage medium and system |
| CN115482776B (en) * | 2022-10-31 | 2023-02-10 | 长春希达电子技术有限公司 | Method, system and device for correcting bright and dark lines of virtual pixel display screen and display system |
-
2023
- 2023-02-13 CN CN202310101674.XA patent/CN115798402B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742496A (en) * | 2017-10-31 | 2018-02-27 | 武汉华星光电技术有限公司 | The ameliorative way and improvement system of the speckle phenomena of display picture |
| CN107731194A (en) * | 2017-11-21 | 2018-02-23 | 深圳市华星光电半导体显示技术有限公司 | A kind of mura compensation methodes and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115798402A (en) | 2023-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100448280C (en) | Self adaptive image display method for environment light | |
| CN106373523B (en) | Spliced bright and dark line compensation method | |
| CN109147712B (en) | Method and system for improving visual angle color cast of display panel | |
| US9534957B2 (en) | Unevenness inspection apparatus and unevenness inspection method | |
| CN101118729A (en) | Image display method and image display device | |
| CN115798402B (en) | Pixel multiplexing-based brightness compensation method | |
| CN110660352B (en) | Point-to-point correction method, device and system for LED display screen and storage medium | |
| CN103383830B (en) | Method for viewing virtual display outputs | |
| US11030971B2 (en) | Display device and image processing method for color correction based on image type | |
| CN110277054A (en) | A kind of LED display multi-grey level bearing calibration | |
| WO2016131216A1 (en) | Method for correcting imaging grey levels of sub-pixels of liquid crystal panel | |
| CN102376292A (en) | Display unit brightness correcting method | |
| CN107342054A (en) | Display device, display control method and display control unit | |
| JP2001508889A (en) | Method and apparatus for performing color conversion and displaying colors to improve perception of people with color vision impairment | |
| CN111798807A (en) | Display driving method and display driving device | |
| JP2008129162A (en) | Video conversion processing method and video conversion system | |
| WO2022120799A1 (en) | Image processing method and apparatus, electronic device, and storage medium | |
| CN114613315A (en) | Gamma curve learning method and LED display controller | |
| CN103986852B (en) | Method for estimating gray-scale curve of liquid crystal display with human vision | |
| CN103021367B (en) | Adaptive adjustment method of color chrominance of display device | |
| CN115346464A (en) | Display compensation data setting method, display compensation method and driving chip | |
| CN114046880A (en) | Color difference correction method for LED spliced display screen | |
| CN109326245A (en) | Detect the method and device of the image high frequency components of display device | |
| JP7313287B2 (en) | Method and apparatus for displaying images on dual display panel | |
| CN110047421A (en) | A kind of classification method of display panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |