A voltage regulation method, device and display device

Abstract

The invention provides a voltage regulation method, device and display device, and relates to the field of display technology. The present invention detects whether the absolute value of the difference between the first grayscale data of the first subpixel and the second grayscale data of the second subpixel in the static picture area of ​​the image to be displayed is greater than the set grayscale threshold, When greater than, the first grayscale data is obtained, and according to the first grayscale data, the driving module is controlled to input the target data voltage to the data line connected to the first subpixel, so as to adjust the original pixel voltage originally charged to the first subpixel is the target pixel voltage, so that the absolute value of the difference between the first voltage difference of the first sub-pixel of the positive frame and the second voltage difference of the first sub-pixel of the negative frame is smaller than the set voltage difference threshold. By correcting the data voltage input to the data line connected to the first sub-pixel, so that during positive frame driving and negative frame driving, the deviation between the target pixel voltage on the pixel electrode and the common voltage on the common electrode is reduced, avoiding Afterimage is bad.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a voltage regulation method, device and display device. Background technique [0002] With the continuous development of liquid crystal display technology, large-size, high-resolution, high-refresh-rate liquid crystal display devices have drawn widespread attention. [0003] In a liquid crystal display panel, in order to prevent liquid crystal polarization, the pixel voltage input to the pixel electrode needs to be switched between positive and negative frames. For example, for two adjacent frames, the pixel voltage input to the pixel electrode in one frame is a positive frame. Pixel voltage, the pixel voltage input to the pixel electrode in another frame is the negative frame pixel voltage, so that the polarity of the voltage applied to the liquid crystal molecules during positive frame driving and negative frame driving is opposite. [0004] However, during positive frame dri...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a voltage regulation method, device and display device to solve the problem of the relatively large voltage difference between the pixel voltage on the pixel electrode and the common voltage on the common electrode when the existing liquid crystal display panel is driven by the positive frame and the negative frame. A large deviation can easily cause the problem of poor afterimage of the LCD panel

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