Manufacturing method of color membrane substrate

Abstract

The invention provides a manufacturing method of a color membrane substrate. A halftone photomask is adopted for exposing and developing a black shading layer, and a black matrix and black photoresistance gap substances on the black matrix are manufactured at the same time, so that the problems such as color mixing and color differences generated when adjacent color blocking blocks on a color photoresistance layer are stacked or are not equal in height are effectively solved, and the angle of view of a product and the display quality of the product can be effectively improved; meanwhile, the manufacturing process can be shortened, materials can be saved, and the yield can be increased.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for manufacturing a color filter substrate. Background technique [0002] With the development of display technology, liquid crystal displays (Liquid Crystal Display, LCD) and other flat display devices are widely used in mobile phones, TVs, personal digital assistants due to their advantages of high image quality, power saving, thin body and wide application range. , digital cameras, notebook computers, desktop computers and other consumer electronics products have become the mainstream of display devices. [0003] Most of the liquid crystal display devices currently on the market are backlight liquid crystal displays, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to place liquid crystal molecules between two parallel glass substrates. There are many vertical and horizontal small wires...

AI Technical Summary

Problems solved by technology

[0005] Color filter substrate is an important part of liquid crystal display, such as Figure 1-2 As shown, the manufacturing process of the existing color filter substrate is as follows: on the substrate 100, a black matrix 200, a color photoresist layer 300, a flat layer or a common electrode layer 400, and a photoresist spacer 500 are sequentially fabricated; the current liquid crystal display device , when the human eye observes from different angles, the light emitted by the color photoresist layer 300 at the overlapping (Overlay) position of the adjacent color-resisting blocks 310, or at the position where the height of the adjacent color-resisting blocks 310 is uneven, will appear Overlapping will cause color mixing, resulting in impure picture and affecting the display effect of the picture

[0006] The current smart mobile and wearable devices such as mobile phones require higher precision in the color film, so the black matrix 200 and the color photoresist layer 300 will require thinner line widths. During the production process of the color photoresist layer 300, it is easier The superimposition of adjacent color-resisting blocks 310 causes color mixing, resulting in a decline in product quality

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