Thin film transistor array substrate, display device and method

Abstract

The invention discloses a thin film transistor array substrate, a display device and a method in the field of thin film transistor liquid crystal display manufacture. The thin film transistor array substrate comprises a backing substrate, bump structures, and thin film transistors, a second insulation layer, first electrodes and second electrodes that are formed on the backing substrate, wherein the first electrodes and the second electrodes are used for forming an electric field; the second insulation layer is positioned among the first electrodes and the second electrodes; the second electrodes are comb-shaped electrodes, and positioned on one side of the second insulation layer far from the backing substrate; the bump structures are positioned on one side of each first electrode close to the backing substrate; and positions of the bump structures correspond to gaps among the comb-shaped electrodes. According to the thin film transistor array substrate, the display device and the method, a shape of a pixel electrode layer is changed by a resin block, so that sizes of horizontal electric field weakening areas among the public electrodes are reduced effectively; a longitudinal noise electric field is weakened; the orientation capability of the horizontal electric field to liquid crystals is improved; Trace Mura is avoided; and the quality of a display is improved.

Description

technical field [0001] The invention relates to the field of manufacturing thin film transistor liquid crystal displays, in particular to a thin film transistor array substrate, a display device and a method. Background technique [0002] TFT-LCD, Thin Film Transistor (TFT for short) Liquid Crystal Display (LCD for short) basic structure includes array substrate (Array Substrate) and color filter substrate (CF Substrate), and filled between the two substrates The liquid crystal layer (LC) between the array substrate and the color filter substrate has a polyimide film layer (alignment film layer) (Polyimide film, referred to as: PIfilm) that has an alignment effect on the liquid crystal. The array substrate includes a gate, a gate insulating layer, an active layer, a source and a drain. In the existing display substrate manufacturing technology, a gate electrode, a gate insulating layer, an active layer, a pixel electrode, a source-drain electrode, a second insulating layer,...

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Problems solved by technology

[0003] For existing display substrate manufacturing technologies, 1 st Transparent conductive film as pixel electrode, comb 2 nd Transparent conductive film as common electrode, comb 2 nd A gap is formed between each slit of the transparent conductive film. Under the joint action of the left and right strip electrodes, the above-mentioned horizontal electric field becomes very small in the middle area of ​​the gap, the vertical noise electric field becomes larger, and the orientation ability of the horizontal electric field to the liquid crystal becomes very large. Weak, pressing in the white state screen causes liquid crystal deflection to be chaotic, and the weak horizontal electric field in the middle area of ​​the gap cannot restore the deflection state of the liquid crystal before pressing, which causes Trace Mura (defects such as residual pressing traces) to occur; With increasing density, 2 nd The strip width of the transparent conductive film becomes smaller and smaller, and this problem becomes more and more serious when the gap width does not change significantly

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