TFT-LCD (Thin Film Transistor Liquid Crystal Display) array substrate and manufacture method thereof

Abstract

The invention relates to a TFT-LCD (Thin Film Transistor Liquid Crystal Display) array substrate and a manufacture method thereof. The array substrate comprises a grid line and data line which are formed on the substrate, a pixel region limited by the grid line and the data line is internally provided with a pixel electrode and a thin film transistor, and a shading pattern is arranged below the thin film transistor. The manufacture method comprises the steps of: depositing a shading film and a grid metal film, forming a pattern comprising the shading pattern, the grid line and the a grid electrode by using a composition process; depositing a grid insulation layer, a semiconductor film, a doped semiconductor film and a source / drain metal film, and forming a pattern comprising the data line, a drain electrode, a source electrode and a TFT channel through the composition process; depositing a passivation layer, and forming a passivation layer through hole pattern by using the compositionprocess; and depositing a transparent conductive film, and forming a pattern comprising the pixel electrode by using the composition process. By forming the shading pattern on the substrate and arranging the shading pattern below the thin film transistor, the invention effectively solves the technical defects generated by intensive residual images in the prior art.

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) 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. The main structure of TFT-LCD is to inject liquid crystal between the array substrate and the color filter substrate. The array substrate is composed of grid lines, data lines, thin film transistors arranged in a matrix and pixel electrodes. Color Filter) is composed of black matrix, color resin and common electrode. [0003] With the rapid development of liquid crystal display technology, the process of preparing array substrates has developed from the original seven-step patterning ...

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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 technical defects of existing TFT-LCD array substrates such as exacerbating afterimage generation.

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