Liquid crystal display screen color supplementing and correcting method

A liquid crystal display and calibration method technology, applied to static indicators, instruments, etc., can solve problems such as inconvenient use of liquid crystal displays, achieve the effect of solving the problem of color cast and improving quality

Inactive Publication Date: 2020-04-10
山水电子(中国)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a liquid crystal display color supplementary correction method, which has the advantages of easy-to-use liquid crystal display and solves the problem of inconvenient use of liquid crystal display

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036]A liquid crystal display color supplementary correction method, comprising the following steps: Step A: collecting the data of each pixel point of the liquid crystal display, and obtaining the actual color value of each pixel of the liquid crystal display, including the following steps: a) determining the liquid crystal display System parameters required for color correction, and divide the LCD screen into partitions that match the resolution of the camera according to the resolution of the LCD screen, perform pixel positioning and camera calibration on the partitions, and select a partition to perform the required correction parameters b) Sampling the luminance and chromaticity of red, green and blue of each pixel of the liquid crystal display through an optical tester, and selecting the subregion with the lowest brightness as the sampling subregion for determining the correction index; c) passing The camera frames and focuses on the selected partition, marks the pixel p...

Embodiment 2

[0038] In embodiment 1, add following steps again:

[0039] In step B, if there is an intersection point between the actual color gamut rectangle and the original color gamut rectangle in the target color gamut, the intersection point is taken as the vertex of the common interval.

[0040] A liquid crystal display color supplementary correction method, comprising the following steps: Step A: collecting the data of each pixel point of the liquid crystal display, and obtaining the actual color value of each pixel of the liquid crystal display, including the following steps: a) determining the liquid crystal display System parameters required for color correction, and divide the LCD screen into partitions that match the resolution of the camera according to the resolution of the LCD screen, perform pixel positioning and camera calibration on the partitions, and select a partition to perform the required correction parameters b) Sampling the luminance and chromaticity of red, gree...

Embodiment 3

[0042] In embodiment 2, add following steps again:

[0043] The color correction parameters of the LCD screen include: full screen resolution, module resolution, pixel pitch, and the offset of the red, green and blue pixels from the center point.

[0044] A liquid crystal display color supplementary correction method, comprising the following steps: Step A: collecting the data of each pixel point of the liquid crystal display, and obtaining the actual color value of each pixel of the liquid crystal display, including the following steps: a) determining the liquid crystal display System parameters required for color correction, and divide the LCD screen into partitions that match the resolution of the camera according to the resolution of the LCD screen, perform pixel positioning and camera calibration on the partitions, and select a partition to perform the required correction parameters b) Sampling the luminance and chromaticity of red, green and blue of each pixel of the liq...

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PUM

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Abstract

The invention discloses a liquid crystal display screen color supplementing and correcting method, which comprises the step A of collecting data of all pixel points of the liquid crystal display screen and acquiring an actual color value of each pixel point of the liquid crystal display screen. The step comprises substeps of: determining system parameters required by color correction of the liquidcrystal display screen, dividing the liquid crystal display screen into partitions matched with the resolution of a camera according to the resolution of the liquid crystal display screen, carrying out pixel positioning and camera adjustment on the partitions, and selecting one partition to carry out original sampling of the required correction parameters. The actual color value of each three-primary-color image displayed by the liquid crystal display screen is obtained, the color correction coefficient of the liquid crystal display screen is determined according to the actual color value andthe original color value of each three-primary-color image, and the driving voltage of the liquid crystal display screen is corrected based on the color correction coefficient, so that the problem ofcolor cast of a color graphic card of the liquid crystal display screen is solved, and the quality of the liquid crystal display screen is improved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display screens, in particular to a method for color supplementation and correction of liquid crystal display screens. Background technique [0002] Liquid crystal display A type of display used in digital clocks and many portable computers. The LCD display uses two sheets of polarized material with a liquid crystal solution between them. Passing an electric current through the liquid causes the crystals to rearrange so that the Light cannot pass through them. Therefore, each crystal is like a shutter, which can not only allow light to pass through but also block light. At present, LCD display technology and information products are all developing towards light, thin, short and small goals. Display products with a long history are certainly no exception. On the premise of being easy to carry and carry, traditional display methods such as CRT image tube displays and LED display panels, etc.,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3607G09G3/3696G09G2320/0276G09G2320/0666
Inventor 冯桂玉孟振霆徐成都
Owner 山水电子(中国)有限公司
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