Mask assembly, display substrate and manufacturing method, display panel, and display device

Abstract

The invention provides a mask plate assembly, a display substrate, a manufacturing method, a display panel, and a display device, belonging to the field of display technology. Wherein, the mask plate assembly is used to manufacture spacers on the display substrate, including: a first mask plate and a second mask plate arranged in layers, and the first mask plate includes a first light-transmitting light corresponding to the spacer pattern and a first opaque pattern other than the first light-transmitting pattern; the second mask plate includes a second light-transmitting pattern, a filter pattern and a second opaque pattern, and the filter pattern is only Light in the first wavelength range is allowed to pass. Through the technical scheme of the invention, the DNU phenomenon can be improved, and the application range of the liquid crystal quantity can be increased.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a mask plate assembly, a display substrate and a manufacturing method, a display panel, and a display device. Background technique [0002] In TFT-LCD (Thin Film Transistor-Liquid Crystal Display), the liquid crystal is sandwiched between the array substrate and the color filter substrate, and the gap between the array substrate and the color filter substrate is mainly supported by spacer (Photo spacer, PS) and liquid crystal , but a large amount of liquid crystals will lead to gravitational Mura (bright spots), and a small amount of liquid crystals will cause excessive compression of the spacer, forming a dark state (Dark Not Uniformly, DNU). Therefore, the applicable range of liquid crystals is reduced . The PS on the color filter substrate is divided into Main PS (main spacer) and Sub PS (auxiliary spacer). The uneven dark state is mainly because the distance between...

AI Technical Summary

Problems solved by technology

[0002] In TFT-LCD (Thin Film Transistor-Liquid Crystal Display), the liquid crystal is sandwiched between the array substrate and the color filter substrate, and the gap between the array substrate and the color filter substrate is mainly supported by spacers (Photo spacers, PS) and liquid crystals. , but a large amount of liquid crystals will lead to gravitational Mura (bright spots), and a small amount of liquid crystals will cause excessive compression of the spacer, forming a dark state (Dark Not Uniformly, DNU), therefore, narrowing the applicable range of liquid crystals

The PS on the color filter substrate is divided into Main PS (main spacer) and Sub PS (auxiliary spacer). The uneven dark state is mainly because the distance between Sub PS and the array substrate is too close, resulting in uneven liquid crystal distribution. It is not easy to restore, so the picture is uneven in the dark state

[0003] However, under the existing technical conditions, the step difference between Main PS and Sub PS is mainly affected by the PS material. During the exposure process, the light intensity at the Sub PS position is less than that at the Main PS position, and the PS material itself is exposed to ultraviolet radiation. The curing ability under the band determines the height range of Sub PS and the step difference between Main PS and Sub PS, it is not easy to control the height range of Sub PS

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