Color film substrate for display, method for manufacturing color film substrate and light mask thereof

Abstract

The invention discloses a color film substrate for a display, a method for manufacturing the color film substrate and a light mask thereof. The color film substrate comprises a substrate body and a plurality of color resistance patterns. The color resistance patterns are arranged on the substrate body, the adjacent color resistance patterns are partially overlapped on one another, and the thicknesses of the lower color resistance patterns in overlapped regions are gradually reduced in the directions of the edges of the lower color resistance patterns. Owing to the mode, the color film substrate, the method and the light mask have the advantages that horn segment difference of the overlapped regions of the adjacent RGB (red, green and blue) color resistance patterns of the color film substrate can be reduced, and accordingly the liquid crystal efficiency can be improved; extra OC (over-coat) flat layers on RGB color resistance layers of the color film substrate can be omitted, accordingly, the production cost of liquid crystal display panels can be reduced, and the production efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a color filter substrate for a display, a manufacturing method thereof, and a photomask of the color filter substrate. Background technique [0002] The TFT-LCD liquid crystal panel includes an array substrate, a color filter substrate, and a liquid crystal layer sandwiched between the array substrate and the color filter substrate. It uses a circuit to generate an electric field to drive the liquid crystal molecules, and produces different optical effects through the physical characteristics of the liquid crystal. The change of the three primary colors of RGB on the film substrate realizes full-color display images. [0003] The color filter substrate is a necessary material for the colorization of TFT-LCD panels. It usually includes a pixel filter film and a black matrix layer. The pixel filter film includes red, green and blue pixel filters arranged in a predete...

AI Technical Summary

Problems solved by technology

[0003] The color filter substrate is a necessary material for the colorization of TFT-LCD panels. It usually includes a pixel filter film and a black matrix layer. The pixel filter film includes red, green and blue pixel filters arranged in a predetermined structure on a transparent glass substrate. Optical film, because there is no special pattern treatment on the edge of the traditional RGB pixel mask, it is a fully transparent area, so after the R→G→B yellow light process, there is overlap between the different color resistances of the RGB three-color pixel filter film Areas, these overlapping areas will cause serious color-resistance stacking angle difference, serious color-resistance stacking angle difference will make the topography of the color filter substrate side close to the liquid crystal side fluctuate greatly, affect the inversion of the surrounding liquid crystal, and reduce the efficiency of the liquid crystal. Therefore, it is necessary to plate an OC (over-coat) flat layer on these RGB three-color pixel filter layers to enhance the flat surface, which increases the material cost, prolongs the process cycle, and reduces production efficiency.

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