Array substrate and liquid crystal display panel

Abstract

The present invention provides an array substrate, including a glass substrate, on which a source electrode and a drain electrode are arranged on the same layer, a flat layer is arranged on the source electrode and the drain electrode, and a third layer is arranged on the flat layer. A common electrode, the first common electrode is covered with an insulating layer, a pixel electrode and a second common electrode are respectively arranged on the insulating layer, and the pixel electrode is connected to the drain electrode through a via hole in the insulating layer. The invention also discloses a liquid crystal display panel, which includes a color filter substrate, the color filter substrate includes a black matrix, and the array substrate, and the second common electrode is arranged at a position opposite to the position of the black matrix. corresponding place. Compared with the prior art, by arranging the second common electrode around the pixel electrode outside the pixel electrode, the light transmittance of the surrounding edge position of the pixel electrode is improved, and its position corresponds to the position of the black matrix, thereby Does not affect the aperture ratio.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an array substrate and a liquid crystal display panel. Background technique [0002] Low Temperature Poly-Silicon (LTPS for short) thin film transistor liquid crystal display (LTPS-TFT LCD) compared with the traditional amorphous silicon thin film transistor liquid crystal display, has high resolution, fast response, high brightness and high aperture ratio. Advantages, therefore, LTPS-TFT LCD has been more and more widely used. [0003] In the dot inversion or column inversion driving mode of the array substrate of the existing LTPS-TFT LCD, the polarity of the data signal between adjacent sub-pixels and another sub-pixel is often accompanied by serious IPS (In -Plane Switching) lateral electric field effect, which in turn produces the PUSH MURA phenomenon. After the panel is impacted by an external force, irreversible color spots are generated. A current solution is to increas...

AI Technical Summary

Problems solved by technology

[0003] In the dot inversion or column inversion driving mode of the array substrate of the existing LTPS-TFT LCD, the polarity of the data signal between adjacent sub-pixels and another sub-pixel is often accompanied by serious IPS (In -Plane Switching) lateral electric field effect, which in turn produces the PUSH MURA phenomenon. After the panel is impacted by an external force, irreversible color spots are generated. A current solution is to increase the pixel electrode spacing between adjacent sub-pixels, so that They will not be too close to each other, but this will cause the problem that the light transmittance at the edge of adjacent sub-pixels is lower than that at other positions. Due to the large space ratio of the edge area of ​​​​the high-resolution pixel, the overall liquid crystal display panel Reduced light transmittance

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