TFT (Thin Film Transistor)-LCD (Liquid Crystal Display) array baseplate and manufacturing method thereof

Abstract

The invention relates to a TFT-LCD array baseplate and a manufacturing method thereof. The array baseplate comprises a baseplate and a multi-thin film layer, wherein the multi-thin film layer comprise a grid wire, a grid insulating layer, a data wire, a thin film transistor, a pixel electrode and a black matrix, wherein the black matrix is formed between the baseplate and the multi-thin film layer. The manufacturing method comprises the following steps of: forming a pattern comprising the black matrix, the grid wire and a grid electrode on the baseplate by adopting the same mask plate through a graph constructing process; depositing the grid insulating layer, a semiconductor thin film, a doped semiconductor thin film and a source-drain metal thin film and forming a graph including an active layer, the data wire, a source electrode, a drain electrode and a TFT channel region; depositing a passivation layer and forming a pattern comprising a passivation layer through hole; and depositing a transparent conductive thin film and forming a graph including the pixel electrode. In the invention, the black matrix is formed on the TFT-LCD array baseplate, thereby furthest reducing the width of the black matrix to the largest degree and effectively improving the aperture opening ratio and the display luminance of a TFT-LCD.

Description

technical field [0001] The invention relates to a thin film transistor liquid crystal display structure and a manufacturing method thereof, in particular to a TFT-LCD array substrate and a manufacturing method thereof. Background technique [0002] Thin Film Transistor Liquid Crystal Display (TFT-LCD for short) 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, covering almost the main electronic products in today's information society, such as LCD TV, high-definition digital TV, computer (desktop and notebook), mobile phone, PDA, GPS, car display, projection display, video camera, digital camera, electronic watch, calculator, electronic instrument, meter, public display and virtual display, etc. [0003] TFT-LCD is composed of a liquid crystal panel (LC...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a TFT-LCD array substrate and its manufacturing method, which can effectively solve the defects of low aperture ratio and low display brightness in existing TFT-LCDs.

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