Display device and overdriving method thereof

Abstract

A display device and an overdriving method thereof. The overdriving method includes: within a frame, when a data signal on a data line needs to be switched from the grayscale of the previous row to the target grayscale of the current row, according to a preset feedback lookup table , the target gray scale of the current line and the input gray scale of the previous line are searched to obtain the feedback gray scale; the gain gray scale is obtained according to the preset gain lookup table and the feedback gray scale search, and the gain gray scale is stored in the line buffer In the device, when the data line switches the gray scale next time, the gain gray scale is used as the input gray scale of the previous line. By newly adding a feedback lookup table and a gain lookup table, the row overdrive technology has a feedback function, so that the actual driving voltage data of the data line is stored in the row buffer, thereby preventing the row overdrive technology from overcharging the subpixels of the next row , which in turn makes panel charging more accurate.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a display device and an overdriving method thereof. Background technique [0002] As the resolution of display devices is getting higher and higher, the panel size is getting bigger and bigger, the charging time of various models is short, and the resistance capacitance (RC) of the panel is large, which leads to the problem of charging rate becoming more and more prominent. The prior art proposes an overdrive technology (over driver, OD) to enable the liquid crystal to reach the expected deflection target in a short period of time. When switching to the target gray level of the current line, if only the driving voltage of the target gray level of the current line is given, due to the slow response speed of the liquid crystal flipping, the actual target gray level of the current line cannot be reached. However, if the OD technology is used, then The drive voltage corre...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a display device and its overdriving method to solve the overdriving method of the existing display device, because when the data line undergoes a grayscale jump, there is a grayscale jump in the current row, and the next row There is no jump in the gray scale, which leads to overcharging of the sub-pixels in the next row, which in turn affects the technical problems of the display

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