Array substrate and driving method thereof

Abstract

The invention discloses an array substrate and a driving method thereof. The array substrate comprises a plurality of scanning lines arranged along a row direction, a plurality of data lines arranged along a column direction and a plurality of sub-pixels which are defined by the scanning lines and the data lines and are arranged in an array mode. The plurality of sub-pixels are divided into a plurality of sub-pixel columns with different colors, wherein the plurality of sub-pixel columns are arranged periodically along the row direction. At least one sub-pixel column is a compensation light sub-pixel column. In a same picture frame, driving voltage polarities on adjacent data lines of two sides of the compensation light sub-pixel column are opposite. Through the above mode, picture brightness changes can be reduced and picture quality is increased.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to an array substrate and a driving method thereof. Background technique [0002] Compared with the traditional RGB pixel structure liquid crystal display panel, the RGBW pixel structure liquid crystal display panel has a higher transmittance due to the addition of W sub-pixels (white pixels) as compensation photon sub-pixels, which can reduce backlight power consumption , so as to reduce costs and have better development prospects. [0003] Such as figure 1 As shown, in the existing liquid crystal display panel with RGBW pixel structure, each pixel unit includes R sub-pixel, G sub-pixel, B sub-pixel and W sub-pixel, R sub-pixel, G sub-pixel, B sub-pixel and W sub-pixel The pixels are arranged sequentially along the row direction. A plurality of scanning lines G1-Gn are arranged in sequence along the column direction, and a plurality of data lines D1-Dn are arrange...

AI Technical Summary

Problems solved by technology

However, in the driving of the liquid crystal display panel with the above-mentioned RGBW pixel structure, the voltage polarity of the W sub-pixel and the R sub-pixel will be the same, that is, the polarities of D4 and D5 of the adjacent data lines on both sides of the W sub-pixel are the same, The capacitive coupling effect of the data line to the pixel electrode of the W sub-pixel is strengthened, thereby changing the voltage of the pixel electrode of the W sub-pixel, that is, vertical crosstalk is generated, resulting in a change in the brightness of the W sub-pixel

The W sub-pixel usually displays white to compensate for the brightness of the screen and has high brightness. Therefore, a slight change in the gray scale of the W sub-pixel will lead to a large change in brightness, making it easier for the human eye to perceive the change in brightness, resulting in The viewing experience of poor picture quality

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