Array substrate and preparation method thereof, and display device

Abstract

The application provides an array substrate and a preparation method thereof, and a display device. The array substrate comprises multiple pixel units and a public electrode layer, wherein the pixel units are divided into a transmitting region and a reflecting region; the array substrate of the reflecting region comprises a substrate, a thin-film transistor and a storage capacitor, wherein the thin-film transistor and the storage capacitor are arranged on the substrate, the storage capacitor comprises a metal layer, an interlayer dielectric layer and a reflecting layer laminated at one side ofthe substrate, and the metal layer is close to the substrate; and the public electrode layer is arranged at one side, far away from the substrate, of the storage capacitor, wherein the reflecting layer is connected with the public electrode layer, and the metal layer is connected with an active layer of the thin-film transistor. Since the ambient light can be reflected through the arrangement ofthe reflecting layer in the reflecting region, the power consumption of the backlight source is reduced; and meanwhile, the storage capacitor formed between the metal layer and the reflecting layer can store the liquid crystal pixel voltage, the voltage variation caused by leakage current is reduced, the liquid crystal pixel potential holding capacity can be effectively increased, and a display effect is improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an array substrate, a preparation method thereof, and a display device. Background technique [0002] Reflective or transflective display has always been an important technology for low-power liquid crystal display. Generally speaking, the power consumption of the backlight accounts for about 70% to 80% of the total power consumption. Reflective or transflective display devices can make full use of ambient light sources, thus saving the power consumption of the backlight. In addition, for liquid crystal display products, the existence of leakage current makes it impossible to maintain the voltage of the liquid crystal pixel electrodes, which affects the display effect. Contents of the invention [0003] The invention provides an array substrate, a preparation method thereof, and a display device, so as to reduce energy consumption and improve display effect. [0004]...

AI Technical Summary

Problems solved by technology

In addition, for liquid crystal display products, the existence of leakage current makes the voltage of the liquid crystal pixel electrode unable to maintain, which affects the display effect

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