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Color filter for liquid crystal display device

A color filter and liquid crystal display technology, applied in the field of color filters, can solve the problems of reducing the flatness of the substrate film layer, the inability to ensure the uniformity of the thickness of the display area, and abnormal liquid crystal alignment, so as to improve the flatness and avoid liquid crystal Alignment abnormality, the effect of improving the light leakage problem of the frame

Inactive Publication Date: 2011-04-06
INNOLUX CORP
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Problems solved by technology

However, if the thickness of the resin black matrix is ​​directly increased to increase the optical density, it will form obvious protrusions where the black matrix overlaps with the color photoresist, thereby reducing the flatness of the entire substrate film layer.
At the same time, because the uniformity of the thickness of the display area cannot be ensured, it may even lead to abnormal liquid crystal alignment.

Method used

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  • Color filter for liquid crystal display device
  • Color filter for liquid crystal display device
  • Color filter for liquid crystal display device

Examples

Experimental program
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Embodiment Construction

[0025] The color filter (Color Filter; CF) of the liquid crystal display of the present invention mainly laminates a light-shielding layer on the black resin film of the CF frame to increase the optical density of the CF frame to form a frame with at least two layers of resin film.

[0026] Please refer to figure 1 , shows a schematic diagram of a color filter substrate. The color filter substrate 100 includes a border region 110 and an array region 120 . The frame area 110 surrounds the display area 120 .

[0027] When manufacturing color filters, the black matrix process is carried out first, followed by the RGB color photoresist process. Please refer to figure 2 , plotted along the figure 1 An enlarged view of the section line 2-2. The black matrix process is to form a black matrix (Black Matrix; BM) on the substrate 100 of the color filter. Such as figure 2 As shown, the first black resin film 210 is disposed on the frame area 110 , and the second black resin film...

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Abstract

A colored optical filter of liquid-crystal display, including: the base board, the first black resin film, the second black resin film and the shadow layer. The frame area of the base board surrounds the display area. The first black resin film and the second black resin film configures at the frame area and the display area respectively. The display area is with the colored photoresisting image,the two neighboring colored image covers the second black resin film by the part overlapping mode. The shadow layer configures at the first black resin film and nearly covers it. The invention can improve the frame leak light problem effectively, enhances the plainness of the whole base board film layer.

Description

technical field [0001] The present invention relates to a color filter of a display, and in particular to a color filter of a liquid crystal display with a resin black matrix (Black Matrix; BM). Background technique [0002] The reason why the liquid crystal display panel can produce color changes is mainly through the red (R), green (G) and blue (B) color photoresist patterns of the color filter (ColorFilter; hereinafter referred to as CF) to provide hue, forming Color display screen. At present, the mainstream production method of color filters is the pigment dispersion method, and the manufacturing process of color filters mainly includes black matrix (Black Matrix; BM) engineering and RGB (red-green-blue) color photoresist engineering. The traditional black matrix engineering is to first form a metal layer of chromium (Cr) or chromium oxide on the glass substrate by sputtering, and then form a black matrix through processes such as exposure, development and etching. Af...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/23G02F1/1335
Inventor 高为智
Owner INNOLUX CORP
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