Color filter and method for manufacturing same

Abstract

The invention discloses a color filter and a method for manufacturing the same. The method includes forming black matrixes on a substrate; filling pigment materials, which are photosensitive materials, among the black matrixes, and forming color resistance units; exposing the color resistance units and leading exposure energy received by various portions of each color resistance unit to be different; and developing the color resistance units to form color resistors. Cross connection areas of the color resistors and the black matrixes are flatter than cross connection areas of the color resistance units and the black matrixes, accordingly, the surface of a transparent electrode layer covering the cross connection areas of the color resistors and the black matrixes is flat, liquid crystal molecules are consistently arrayed on the transparent electrode layer, and the contrast ratio of the color filter is increased.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a color filter and a manufacturing method thereof. Background technique [0002] The liquid crystal display uses color filters to present colorful images: when the backlight of the liquid crystal display emits light, the color filter is provided with red, green, and blue primary color filter layers, and the light passes through the color filter to form red and green colors. , blue three primary colors, and finally mixed to form a color image. Therefore, color filters are key components of LCDs. [0003] refer to figure 1 , in the manufacturing process of current liquid crystal display panels, the manufacturing method of the color filter is usually: form a black matrix 50 on a transparent substrate 10, after the black matrix 50 is manufactured, directly use the nozzle to spray red ink, green ink, The three pigment materials of blue ink are filled into the gaps of the black...

AI Technical Summary

Problems solved by technology

Because the material of the black matrix 50 has repellency with the three pigment materials of red ink, green ink and blue ink, that is, the pigment material and the black matrix 50 repel each other, resulting in black matrix 50 and red color resistance 20 and green color resistance 30 1. The junction area of ​​the blue light color resist 40 is not flat, resulting in poor alignment of liquid crystal molecules, resulting in increased brightness in the dark state, resulting in an abnormal contrast value between the bright picture and the dark picture of the liquid crystal panel

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