Method and system for local brightness and chroma compensation of display device
A technology of display equipment and compensation method, which is applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of many adjustment factors, complicated and complicated correction operations, and the uniformity of brightness and chromaticity affecting the user's display effect, etc.
Active Publication Date: 2017-04-05
GUANGDONG VTRON TECH CO LTD
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The display effect of the display device is the part that people are most concerned about in actual use, and the brightness and chromaticity uniformity of the display device greatly affect the display effect of the user, so one of the current development trends of the display device is to improve the uniformity of the display At present, there are many uniformity adjustment methods, but the uniformity correction operation requires the use of instruments, and because there are many factors that need to be adjusted, the correction operation is cumbersome and complicated
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] The specific implementations of the method and system for compensating local brightness and chromaticity of a display device according to the present invention will be described in detail below with reference to the accompanying drawings.
[0022] see figure 1 , figure 1 It is a flow chart of a method for compensating local brightness and chroma of a display device according to an embodiment.
[0023] A method for compensating local brightness and chromaticity of a display device, comprising the following steps:
[0024] Step S101: select several pixel points of the display device as specified points, adjust the brightness reference value Z of the four-color RGBW of each specified point, and obtain the adjusted brightness reference value Z R1 , brightness reference value Z G1 , brightness reference value Z B1 , brightness reference value Z W1 ; Wherein, the brightness reference value Z includes the brightness reference value Z R , brightness reference value Z G ,...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention provides a method and system for compensating local brightness and chroma of a display device. The method includes the following steps: selecting several pixel points of the display device as designated points, adjusting the brightness reference value Z of the four-color RGBW of each designated point, and obtaining according to the adjustment The brightness reference value ZR1, brightness reference value ZG1, brightness reference value ZB1, and brightness reference value ZW1 are calculated to obtain target brightness reference values of each color; according to the target brightness reference values of RGB colors, the highest and lowest values of the signal quantities of each color , and the maximum and minimum values of the target luminance reference values of each color, and calculate the signal quantities corresponding to the RGB colors of the specified point; calculate the signal corresponding to each pixel point of the display device according to the RGB signal quantities of the specified point through an interpolation algorithm quantity. In the above method, when performing local brightness and chromaticity compensation, that is, adjusting uniformity, only the brightness reference value Z of a pixel needs to be adjusted, so it is relatively simple to correct the uniformity of the display device.
Description
technical field [0001] The present invention relates to the field of display device display technologies, in particular to a method for compensating local brightness and chroma of a display device and a system for compensating local brightness and chroma of a display device. Background technique [0002] At present, display devices are widely used, including handheld terminals, personal use terminals, etc. At the same time, display devices of different sizes and types can also be used in a wide range of occasions such as public exhibitions and performances. The display effect of the display device is the part that people are most concerned about in actual use, and the brightness and chromaticity uniformity of the display device greatly affect the display effect of the user, so one of the current development trends of the display device is to improve the uniformity of the display At present, there are many uniformity adjustment methods, but the uniformity correction operation...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/10
Inventor 王鑫汪金波
Owner GUANGDONG VTRON TECH CO LTD