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 a data line which are formed on the substrate, wherein pixel electrodes and thin film transistors are formed in pixel regions limited by the grid line and the data line; and memory electrodes and connecting electrodes are also formed in the pixel regions, wherein the memory electrodes is made of transparent materials and form memory capacitors with the pixel electrodes, and the connecting electrodes ensure that the memory electrodes in adjacent pixel regions are mutually connected. Through forming the memory electrodes formed by transparent conductive thin films in the pixel regions, the invention can design proper memory capacitors according to actual demands through changing the areas of the memory electrodes, thereby guaranteeing the sufficient allowance of the memory capacitors, effectively reducing the leaping voltage deltaVp and improving the display quality. Furthermore, by adopting the transparent memory electrodes, the aperture ratio and the display brightness can also be effectively improved, thereby the display quality is improved on the whole.

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, and occupies a dominant position in the current flat panel display market. [0003] TFT-LCD is mainly composed of an array substrate and a color filter substrate in a box, wherein thin-film transistors and pixel electrodes arranged in a matrix are formed on the array substrate, and each pixel electrode is controlled by a thin-film transistor. When the thin film transistor is turned on, the pixel electrode is charged during the turn-on time, and after the charging is completed, the voltage of the pixel electrode will be maintained until recharging in the next scan. Generally speaking, the ...

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Problems solved by technology

[0005] (1) For the structure type of the storage capacitor on the gate line, the jump voltage ΔV is reduced due to the small value of the storage capacitor p The effect is not ideal;

[0006] (2) For the structure type of the storage capacitor on the common electrode line, although the storage capacitor has a large value, it can effectively reduce the jump voltage ΔV p , but because the common electrode line blocks part of the pixel area, the aperture ratio is reduced and the display brightness is reduced;

[0007](3) For the type of combined structure, although the above problems are alleviated, it leads to a complex structure of the TFT-LCD array substrate and an increase in the difficulty of the manufacturing process, and to a certain extent It affects the product quality of TFT-LCD

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