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Circuit and method for compensating color shift of color sequence method

A color shift and color sequence technology, which is applied in the field of circuits for compensating color shift and color shift, and can solve problems such as uneven color gradation.

Inactive Publication Date: 2011-11-30
CPT DISPLAY TECH FUJIAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the method used in the prior art to improve the unevenness of the color gradation is not a good choice for the designers of the display panel.

Method used

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  • Circuit and method for compensating color shift of color sequence method
  • Circuit and method for compensating color shift of color sequence method
  • Circuit and method for compensating color shift of color sequence method

Examples

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Embodiment Construction

[0046] Please refer to Figure 4 , Figure 4 It is a schematic diagram illustrating a circuit 400 for compensating the color shift of the color sequence method according to an embodiment of the present invention. The circuit 400 includes an image processing unit 402 and a timing control circuit 404, wherein the image processing unit 402 includes a gray scale value generating unit 4022, a preprocessing unit 4024 and a color scale compensation unit 4026, wherein the color scale compensation unit 4026 is coupled to In the preprocessing unit 4024 and the gray scale value generation unit 4022 . The image processing unit 402 is used to compensate the grayscale values ​​R, G, and B of the red, green, and blue sub-pixels of a pixel P, so as to generate the grayscale values ​​R', G', B'. The timing control circuit 404 is coupled to the image processing unit 402, and is used to sort the grayscale values ​​R', G', and B' of the red, green, and blue sub-pixels of the compensation pixel...

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Abstract

The invention discloses a circuit for compensating the color deviation of a color sequential method, which comprises an image processing unit and a time sequence control circuit, wherein the image processing unit comprises a gray scale value generating unit, a preprocessing unit and a color gradation compensating unit. The gray scale value generating unit is used for generating a first gray scalevalue of sub-pixels of red, green and blue lights; the preprocessing unit is used for generating the uniformity degree of a pure color and a color gradation compensating base number of a display panel; the color gradation compensating unit is used for generating a color saturation level of a pixel, a compensating difference of the pixel and generating a gray scale value compensating the sub-pixels of red, green and blue lights of a compensating pixel. The time sequence control unit is used for compensating the gray scale value of the sub-pixels of red, green and blue lights according to the color sequential method and outputting the gray scale value to the display panel.

Description

technical field [0001] The present invention relates to a compensation circuit and its method, especially to a circuit and its method for compensating the color shift of the color sequence method. Background technique [0002] The display panel that uses the color sequence method to display red, green, and blue light does not need color filters to display red, green, and blue light. The color mixing principle is to use the characteristics of time to quickly switch the red, green, and blue backlight to synthesize desired color. Therefore, there will be red, green, and blue sub-pixels in one frame time. Please refer to figure 1 , figure 1 It is a schematic diagram illustrating that one pixel in one screen displays red, green, blue, and white lights. Such as figure 1 As shown in a, when the pixel wants to display red light, as long as the liquid crystal LCR corresponding to the red sub-pixel in the screen is turned on (the liquid crystal LCG and LCB corresponding to the gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G5/02
Inventor 蔡继中戴文智
Owner CPT DISPLAY TECH FUJIAN
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