Pixel charging method and circuit

Abstract

The invention discloses a pixel charging method and a circuit, belonging to the field of display technology. The pixel charging method includes: obtaining the grayscale value of each row of subpixels in any frame of the image to be displayed; determining the charging time of each row of subpixels according to the grayscale value of each row of subpixels, in each row of subpixels, The charging duration of sub-pixels in n rows is positively correlated with the absolute value of the preset difference. The preset difference is the difference between the gray value of the sub-pixels in the n-th row and the gray-scale value of the sub-pixels in the n-1 row, and n is An integer greater than 1; when the display panel displays any frame of image, each row of subpixels is charged according to the charging duration of each row of subpixels. The present invention determines the charging time of each row of sub-pixels according to the gray value of each row of sub-pixels, and reduces the difference in charging rates between two rows of sub-pixels whose gray values ​​differ greatly. The problem in the related art that the charging rates of the sub-pixels in each row may not be uniform is solved. The effect of improving the charging rate uniformity of the sub-pixels in each row of the display panel is achieved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a pixel charging method and circuit. Background technique [0002] When the display panel is displaying, a control integrated circuit (English: integrated circuit; IC for short) in the display panel will write a data voltage into each sub-pixel, and the data voltage is used to control each sub-pixel to display. [0003] There is a pixel charging method in the related art. In this method, the control IC writes data voltage to each row of subpixels in the display panel to charge each row of subpixels. The charging time is determined by the size and refresh rate of the display panel. And when the size and refresh rate of the display panel are fixed, the charging time of each row of sub-pixels in the display panel is the same. [0004] In the process of realizing the present invention, the inventors have found that the prior art has at least the following problem: After the sub-pix...

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Problems solved by technology

[0005] In order to solve the problem in the prior art that after each row of subpixels is charged, the charging rate of each row of subpixels may not be uniform, an embodiment of the present invention provides a pixel charging method and circuit

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