Color film substrate, manufacturing method thereof and display device

Abstract

The invention discloses a color film substrate, a manufacturing method thereof and a display device, and belongs to the technical field of display. The method comprises the following steps: forming ablack matrix pattern and a first alignment pattern on a first surface of a transparent substrate; using a shading plate to shade the black matrix pattern, and forming a second alignment pattern on a second surface of the transparent substrate, so that the orthographic projection of the second alignment pattern on the transparent substrate and the orthographic projection of the first alignment pattern on the transparent substrate are staggered; and forming a grating structure on the second surface of the transparent substrate based on the second alignment pattern. The second alignment pattern and the grating structure to be formed subsequently are positioned in the same side of the transparent substrate; therefore, based on the second alignment pattern, the alignment precision between the mask plate for forming the grating structure and the transparent substrate can be improved, the precision of the grating structure formed on the second surface of the transparent substrate is further improved, and the peep-proof effect of the display device manufactured through the color film substrate is better.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a color filter substrate, a manufacturing method thereof, and a display device. Background technique [0002] In order to prevent peeping of content displayed on display devices such as mobile phones or tablet computers, some display devices with anti-peeping functions appear on the market. [0003] At present, a grating structure can be formed on the light-emitting side of the display device, and the viewing angle range of the display device can be reduced through the grating structure, so as to realize the anti-peeping function. A display device generally includes: an opposite display substrate and a color filter substrate, and the grating structure is located on a side of the color filter substrate away from the display substrate. Usually, the grating structure can be directly formed on the surface of the color filter substrate away from the display substrate. In the process...

AI Technical Summary

Problems solved by technology

[0004]However, due to the large thickness of the transparent substrate in the color filter substrate, based on the alignment pattern on the side of the color filter substrate close to the display substrate, the mask plate and the The alignment accuracy of the color filter substrate alignment is low, resulting in low accuracy of the final formed grating structure, which affects the anti-peeping effect of the display device

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