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LCD

A liquid crystal display and data line technology, applied to static indicators, instruments, electric solid devices, etc., can solve the problems of compensation mechanism failure, poor coincidence accuracy, etc.

Inactive Publication Date: 2008-09-03
上海广电光电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, for the same reason, this compensation mechanism is also to change the overlapping area between the two plates of the storage capacitor, so there is a high requirement for the coincidence accuracy between the two plates. If the coincidence accuracy is poor, it will cause the expected The compensation mechanism in the

Method used

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Effect test

Embodiment 1

[0033] Such as Figure 7 As shown, a liquid crystal display is composed of a thin film transistor array substrate (TFT substrate), a color filter film substrate (CF substrate) and a liquid crystal layer arranged between them, with a resolution of 1024*768. The pixel array of its array substrate includes scan line 1 and drive circuit 100 connected to the scan line, data line 2 and drive circuit 200 connected to the data line, and several pixels defined by scan line 1 and data line 2, and its pixel array There are 3072 pixels in the same horizontal direction, and each pixel includes a thin film transistor 4 and a corresponding liquid crystal display unit, and the drain of the thin film transistor 4 is connected to the data line 2, and its source is connected to the pixel of the liquid crystal unit. The electrode 5 is connected, and its gate is connected to the scanning line 1, and each pixel also includes a storage capacitor 31, which is formed by the overlapping part of the pix...

Embodiment 2

[0038] Other structures are basically the same as in Embodiment 1, except that in the pixel array of the array substrate, the area difference of the data line metal layer compensation block 6 in every two adjacent pixels of 3072 pixels in the same horizontal direction is a predetermined value, and The area becomes smaller as the distance from the scanning line 1 input end of the array substrate is farther away. Therefore, the feed through voltage of each pixel can be substantially the same more precisely.

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Abstract

The invention discloses a liquid crystal display, each pixel of an array substrate comprising a storage capacitance. A data line metal layer compensation block is inserted between a pixel electrode of the storage capacitance and a common electrode and connected with the pixel electrode by a contact hole and fully covered by the pixel electrode. The area of the data line metal layer compensation block is smaller along with the distance to the scanning line of the array substrate is farther. The liquid crystal display effectively increases the storage capacitance by reducing the distance between the two metal electrodes without increasing the overlap area. Because the data line metal layer compensation block is fully covered by the pixel electrode layer, there is no problem of contraposition accuracy between the two layers, namely the difference of delta Vp of two sides of the panel is finely compensated to realize the low flash of the display panel.

Description

technical field [0001] The invention relates to a semiconductor element, in particular to a thin film transistor liquid crystal display. Background technique [0002] A liquid crystal display (liquid crystal display, LCD) is currently the most widely used type of flat panel display, and has the characteristics of low power consumption, thin appearance, light weight, and low driving voltage. The liquid crystal display module is mainly composed of a liquid crystal display panel and a backlight module. Wherein, the liquid crystal display panel is generally composed of a thin film transistor array substrate (TFT substrate), a color filter film substrate (CF substrate), and a liquid crystal layer disposed between them. The backlight module is used to provide the surface light source required by the liquid crystal display panel, so that the liquid crystal display module can achieve the display effect. The TFT substrate can be divided into a display area (display area) and a peri...

Claims

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Application Information

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IPC IPC(8): G02F1/1362H01L27/12G09G3/36
Inventor 徐华伟
Owner 上海广电光电子有限公司
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