Display substrate and preparation method thereof, exposure alignment method

Abstract

Provided is a display substrate, a preparation method thereof, and an exposure alignment method. The display substrate includes a substrate and a low-reflection film layer disposed on the substrate, wherein the low-reflection film layer includes a low-reflection film layer disposed on the substrate. A crystal substrate and a plurality of pyramid microstructures formed on the crystal substrate, and a plurality of micropores are formed on the outer surface of the pyramid microstructure.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display substrate, a preparation method thereof, and an exposure alignment method. Background technique [0002] The color filter substrate is the key material for realizing color display, and it occupies a very high cost in the display screen. In addition to affecting color, the color filter substrate also affects optical properties such as brightness and contrast. The main structure of the color filter substrate includes a substrate, a black matrix (BM), a color layer (RGB), a protective layer, a conductive film layer, a spacer column, and the like. The basic function of the black matrix is ​​to block light. The purpose is to improve the contrast, avoid the color mixing of the connected color layers, reduce the reflection of external light, and prevent the external light from irradiating the thin film transistor and increase the leakage current. Using the black matrix can e...

AI Technical Summary

Problems solved by technology

In the G2.5 generation line, after the black matrix is ​​coated, the alignment mark of the front layer cannot be recognized, and it cannot be automatically aligned on the exposure machine, and manual alignment is required, which reduces the yield and efficiency

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