Thin-film transistor liquid crystal display (TFT-LCD) and method for driving a common electrode thereof

Abstract

The invention relates to a thin-film transistor liquid crystal display (TFT-LCD) and a method for driving a common electrode thereof. The TFT-LCD comprises a color film substrate and an array substratThe invention relates to a thin-film transistor liquid crystal display (TFT-LCD) and a method for driving a common electrode thereof. The TFT-LCD comprises a color film substrate and an array substrattively forms a first pixel opening area which serves as a normal display area and a second pixel opening area which serves as an assistant display area in each pixel area. The invention reduces the shtively forms a first pixel opening area which serves as a normal display area and a second pixel opening area which serves as an assistant display area in each pixel area. The invention reduces the shaded area of the black matrix and increases the aperture opening ratio of each pixel.aded area of the black matrix and increases the aperture opening ratio of each pixel.e which are arranged correspondingly. A plurality of parallel grid lines and a plurality of data lines which are isolated from, perpendicular to and intersect with the grid lines are formed on the arre which are arranged correspondingly. A plurality of parallel grid lines and a plurality of data lines which are isolated from, perpendicular to and intersect with the grid lines are formed on the array substrate. The grid lines and the data lines encircle a plurality of pixel areas and each pixel area is provided with a pixel electrode. The color film substrate comprises a colorized resin, a blacay substrate. The grid lines and the data lines encircle a plurality of pixel areas and each pixel area is provided with a pixel electrode. The color film substrate comprises a colorized resin, a black matrix and a common electrode; the common electrode includes a plurality of first rod-shaped electrodes and second rod-shaped electrodes; the position of each second rod-shaped electrode on the colok matrix and a common electrode; the common electrode includes a plurality of first rod-shaped electrodes and second rod-shaped electrodes; the position of each second rod-shaped electrode on the color film substrate corresponds to the area of each grid line of the array substrate; each first rod-shaped electrode is positioned between every two second rod-shaped electrodes; the black matrix respecr film substrate corresponds to the area of each grid line of the array substrate; each first rod-shaped electrode is positioned between every two second rod-shaped electrodes; the black matrix respec

Description

technical field [0001] The invention relates to a liquid crystal display and its driving method, in particular to a thin film transistor liquid crystal display and its common electrode driving method. Background technique [0002] Thin Film Transistor Liquid Crystal Display (TFT-LCD for short) has two substrates: a color filter panel (Color Filter Panel, also known as a color filter) and an array substrate (Array Panel), and the liquid crystal material is filled between the two substrates. , by applying a common voltage to the common electrode on the color filter substrate and applying a data voltage to the pixel electrodes on the array substrate, an electric field is generated between the two substrates, and the liquid crystal is rotated under the action of the electric field, and the twist angle of the liquid crystal is adjusted by the data voltage , so as to control the amount of light transmitted in this area, and finally display the image. [0003] The array substrate ...

AI Technical Summary

Problems solved by technology

[0011] Under the guidance of the black matrix design concept of the prior art, the black matrix of the prior art blocks all the areas where the second vertical electric field, the third vertical electric field, the first horizontal electric field, and the second horizontal electric field are located, so that the pixel aperture ratio cannot be further improved , the brightness and contrast of TFT-LCD are low

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