FFS type TFT-LCD array substrate structure and manufacture method thereof

Abstract

The invention relates to an FFS type TFT-LCD array substrate structure and a manufacture method thereof. The array substrate structure comprises a substrate, a public electrode, a grid line, a grid electrode, a grid insulating layer, an active layer, a data wire, a source electrode, a drain electrode and a passivation layer, wherein the public electrode, the grid line, the grid electrode, the grid insulating layer, the data wire, the source electrode, the drain electrode and the passivation layer are formed on the substrate; and the active layer is formed on the grid insulating layer and positioned on the grid electrode. Passivation layer grooves which are in strip shapes and are sequentially arranged are formed in a pixel area; a passivation layer through hole is formed at the position of the drain electrode; pixel electrodes are formed on the passivation layer, positioned in the passivation layer grooves and connected with the drain electrode through the passivation layer through hole. The invention farthest eliminates the terminal temperature difference (TTD) of the pixel electrodes in the pixel area, and flat surfaces of the pixel electrodes ensure that the subsequent friction orientation process of orientation films can obtain uniform orientation angles, thereby the quality of pictures is improved, and the degree of freedom for designing the pixel electrodes is greatly improved.

Description

technical field [0001] The invention relates to a thin film transistor liquid crystal display and a manufacturing method thereof, in particular to an FFS type TFT-LCD array substrate structure and a manufacturing method thereof. Background technique [0002] In recent years, with the popularization of digital TV, the traditional CRT display has been gradually replaced by a new generation of display devices, including PDP, OLED, LCD, etc., among which Thin Film Transistor Liquid Crystal Display (TFT-LCD for short) ) has the characteristics of small size, low power consumption, no radiation, and high display resolution, and has begun to be widely popularized and become a mainstream product. Fringe Field Switching (FFS for short) is one of the technologies that have appeared in recent years to improve the image quality of LCDs, and can simultaneously meet the requirements of high penetration and large viewing angles. The so-called FFS technology uses the fringe electric field ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an FFS type TFT-LCD array substrate structure and its manufacturing method, which can effectively solve the technical defects of the array substrate structure in the prior art, such as disordered liquid crystal orientation caused by uneven pixel electrodes.

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