Display substrate and display device

Abstract

The invention relates to the technical field of display and discloses a display substrate and a display device. A display area for arranging the display substrate is composed of a plurality of same pixel repeating units and each pixel repeating unit comprises integer rows of pixel sub-regions, so that the problem of the display quality influenced by the luminance difference between the pixel regions resulted from the removal of a half of data lines from a double-grating structure can be solved, the consistent luminance distribution of all the pixel repeating units can be guaranteed, the luminance difference between the pixel repeating units can be reduced and the display quality can be promoted. The contradiction between the aperture opening ratio of the double-grating structure and the luminance distribution difference of the pixels can be solved without sacrificing the aperture opening ratio.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display substrate and a display device. Background technique [0002] In the field of flat panel display technology, Thin Film Transistor Liquid Crystal Display (TFT-LCD) has the advantages of small size, low power consumption, and relatively low manufacturing cost, and gradually occupies a dominant position in today's flat panel display market. The main structure of TFT-LCD is the array substrate and the color filter substrate of the box. The array substrate includes a plurality of gate lines and a plurality of data lines intersecting to define a plurality of sub-pixel regions, and each pixel region is composed of a plurality of adjacent sub-pixel regions. Each sub-pixel area includes a pixel electrode and a thin film transistor. The gate electrode of the thin film transistor is electrically connected to the gate line, the source electrode is electrically connected t...

AI Technical Summary

Problems solved by technology

BM difference is an important parameter in the design. If the black matrix with a width of AA' corresponds to the position of the data line, its width is designed according to the width of the data line, and the black matrix with a width of BB' does not correspond to the position of the data line. If the BB' design is small and the BM difference is too large, the area of ​​the sub-pixel area increases, which improves the aperture ratio, but it will lead to an increase in the brightness difference between the pixel areas, causing the difference in brightness and darkness displayed by the pixel at low gray levels. This is called for dim mura

The current solution is to increase BB' (reduce the difference of BM), but it will sacrifice the area of ​​the sub-pixel area, which is not conducive to improving the aperture ratio

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