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Glass substrate having black matrix, preparation method thereof, and liquid crystal panel

A technology of black matrix and glass substrate, which is applied in the field of glass substrate with black matrix and its preparation, can solve the problems of lower aperture ratio of liquid crystal panel, which is not conducive to reducing product cost and product quality, and achieve the effect of reducing dark lines

Inactive Publication Date: 2015-08-26
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method adds a process of preparing a flat layer, and after the flat layer is set, the aperture ratio of the liquid crystal panel will decrease, which is not conducive to reducing the cost of the product and improving the quality of the product.

Method used

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  • Glass substrate having black matrix, preparation method thereof, and liquid crystal panel
  • Glass substrate having black matrix, preparation method thereof, and liquid crystal panel
  • Glass substrate having black matrix, preparation method thereof, and liquid crystal panel

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Embodiment Construction

[0029] As mentioned above, the present invention provides a glass substrate with a black matrix for the defects of dark lines on the edge of the pixel due to the sharp corners of the edge of the black matrix in the COA liquid crystal panel of the prior art, which has a black matrix The glass substrate includes a glass substrate and a black matrix array formed on the glass substrate, wherein the thickness of the black matrix gradually decreases from the middle to both ends. By improving the shape of the black matrix, the edge of the black matrix is ​​no longer in the shape of a taper angle, and the arrangement of the liquid crystal molecules in the liquid crystal layer close to the black matrix area is not much different from that of the liquid crystal molecules outside the area. Fixed an issue where pixel edges had dark lines due to black matrix edges having sharp corners.

[0030] The technical solutions in the embodiments of the present invention will be described in detail ...

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Abstract

The invention discloses a glass substrate having a black matrix. The glass substrate having the black matrix comprises a glass substrate and a black matrix array formed thereon, wherein the thickness of the black matrix gradually reduces from the middle to its two ends. The preparation method of the glass substrate comprises the following steps: S101, providing a glass substrate and forming a black matrix film layer thereon; S102, applying an exposure process and a development process to the black matrix film layer to obtain the black matrix array, wherein the exposure photomask is corresponding to the exposure area of each black matrix during the exposure process, and the exposure quantity gradually reduces from the middle to the two ends. The invention also discloses a liquid crystal panel containing the glass substrate and integrating a color filter on a thin film transistor array substrate (Color filter on array, COA).

Description

technical field [0001] The invention belongs to the technical field of liquid crystal displays, and in particular relates to a liquid crystal panel in which a color filter is integrated on a thin film transistor array substrate (Color filter on array, COA), in particular to a glass substrate with a black matrix in the liquid crystal panel and its preparation method. Background technique [0002] Liquid Crystal Display (LCD) is a flat and ultra-thin display device, which consists of a certain number of color or black and white pixels, and is placed in front of a light source or a reflective surface. Liquid crystal displays have low power consumption, high image quality, small size, and light weight, so they are favored by everyone and become the mainstream of displays. Currently, liquid crystal displays are mainly thin film transistor (Thin Film Transistor, TFT) liquid crystal displays. [0003] The reason why TFT-LCD can develop rapidly is that it is more based on amorphou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G03F7/20
CPCG02F1/133512G03F7/2047G02F2201/40G02F2201/50G02F2203/30G02F1/133345G02F1/13439G02F1/1368G02F2201/121G02F2201/123G02F2203/01G02F1/133302G02F1/136222H01L27/1218H01L27/124H01L27/1262
Inventor 刘桓
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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