Array substrate and preparation method and display device of array substrate

A technology of array substrate and substrate substrate, which is applied in semiconductor/solid-state device manufacturing, optics, instruments, etc., can solve the problems of reduced pixel aperture ratio, not very obvious, limited, etc., to improve aperture ratio, reduce resistance value, reduce The effect of voltage differences
CN103474432AActive Publication Date: 2013-12-25HEFEI BOE OPTOELECTRONICS TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI BOE OPTOELECTRONICS TECH
Publication Date
2013-12-25

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Abstract

The invention provides an array substrate and a preparation method and display device of the array substrate, which are used for reducing the voltage difference of common electrode layers among different pixel units, and increasing the pixel aperture ratio. The array substrate comprises a substrate, grid lines arranged on the substrate in an intersecting way, data lines, and pixel units which are formed by the division of the grid lines and the data lines and are in matrix arrangement, wherein thin film transistors, pixel electrodes and common electrode layers are arranged in the pixel units, and the thin film transistors comprise grid electrodes, first insulating layers, source electrodes, drain electrodes and active layers. The array substrate also comprises black matrixes with conductivity, which are arranged in non-display areas of the pixel units and electrically connected with the common electrode layers, and second insulating layers which are used for insulating the black matrixes and the common electrode layers from the thin film transistors, wherein the coverage areas of the second insulating layers are overlapped with the coverage areas of the black matrixes and the common electrode layers.
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Description

technical field

[0001] The invention relates to the technical field of liquid crystal display, in particular to an array substrate, a preparation method thereof, and a display device. Background technique

[0002] Thin Film Transistor Liquid Crystal Display (TFT-LCD) has the characteristics of small size, low power consumption, and no radiation. It has developed rapidly in recent years and occupies a dominant position in the current flat panel display market. TFT-LCD has been widely used in various large, medium and small size products, almost covering the main electronic products in today's information society, such as LCD TV, high-definition digital TV, computer, mobile phone, vehicle display, projection display, video camera , digital cameras, electronic watches, calculators, electronic instruments, meters, public displays and virtual displays, etc.

[0003] TFT-LCD is composed of liquid crystal display panel, driving circuit and backlight module, and liquid crystal disp...

Claims

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