Color film substrate, and manufacturing method and display device thereof

Abstract

An embodiment of the invention discloses a color film substrate, and a manufacturing method and a display device thereof, relates to the technical field of display, and aims at lowering manufacturing cost of the color film substrate, easily forming a main insulator and an auxiliary insulator which are different in height, approximate in size, uniform in appearance, better in supporting effect and higher in display quality. The manufacturing method of the color film substrate includes: manufacturing a black matrix pattern and a color photoresist pattern on the substrate, wherein the black matrix pattern parallel to the grid line direction comprises a main zone and an auxiliary zone, and the width of the main zone, perpendicular to the grid line direction is greater than the width of the auxiliary zone, perpendicular to the grid line direction; manufacturing a flat layer and an insulator layer, wherein the insulator layer comprises the main insulator and the auxiliary insulator, the main insulator is located on the main zone of the black matrix pattern, the auxiliary insulator is located on the auxiliary zone of the black matrix pattern, and the main insulator is higher than the auxiliary insulator.

Description

technical field [0001] The invention relates to the field of liquid crystal displays, in particular to a color filter substrate, a manufacturing method thereof, and a display device. Background technique [0002] The color filter substrate is an optical filter structure used to display colors in a thin film transistor-liquid crystal display. The spacer is located on the color filter substrate, and is used to determine the gap between the color filter substrate and the array substrate, so as to maintain an optimal thickness of the liquid crystal layer. In order to obtain a liquid crystal panel with high contrast, wide viewing angle, and fast response, spacers with similar sizes and uniform distribution should be selected. [0003] Spacers can be divided into spherical spacers, rod-shaped spacers, columnar spacers, etc. according to their appearance. Among them, columnar spacers have the advantages of easy size control, high contrast, good uniformity, high durability, and le...

AI Technical Summary

Problems solved by technology

Among them, when using a common mask, the columnar spacers are designed in different sizes, and the size of the secondary columnar spacers is smaller. By controlling the opening size of the mask, the exposure amount can be controlled, so that the primary columnar spacers The height difference between the columnar spacer and the secondary columnar spacer, but the height difference between the two can only be realized when the size difference between the primary columnar spacer and the secondary columnar spacer is large. Under such conditions, because the primary columnar spacer The size difference between the main spacer and the secondary spacer is quite large, which makes the top surface morphology of the main spacer and the secondary spacer also have a large difference. The surface morphology of the main spacer is relatively smooth, while the secondary spacer Due to the small size, the surface is relatively rough, and there are uneven phenomena. The unevenness of this shape will have a direct impact on the support effect of the spacer; Spacers and secondary column spacers can be very close in size, but at a higher cost

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