Photo-orientation material, liquid crystal display panel and preparation method thereof

Abstract

The invention discloses a photo-orientation material, a liquid crystal display panel and a preparation method thereof. A chemical structural formula of the material comprises a first group, a second group, a third group and a fourth group, which are connected in sequence, wherein the first group is a group with an orientation anchoring function; the second group is a chaining group; the third group is a group with one or multiple light-sensitive cyclohexanone structural formulas; the fourth group is an alignment group with linear-chain type or branched-chain type alkyl with 3 to 15 carbon atoms. With the adoption of the manner, a preparation technology flow of the liquid crystal display panel can be simplified and the quality of a product is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a photo-alignment material, a liquid crystal display panel and a preparation method thereof. Background technique [0002] With the continuous development of display technology, people's requirements for the performance of liquid crystal displays are also increasing, especially large viewing angle liquid crystal displays have become a research hotspot. [0003] In the prior art, in order to obtain a large viewing angle, an alignment film is usually provided on the array substrate and the color filter substrate of the liquid crystal display panel; for the VA type liquid crystal display panel, it is also necessary to design the pixel electrodes of the array substrate as herringbone shape, and add monomers that can be polymerized under ultraviolet light to the liquid crystal molecules to form a specific pre-tilt angle (Pre-angle), so that the liquid crystal can be aligned when it i...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, in order to obtain a large viewing angle, an alignment film is usually provided on the array substrate and the color filter substrate of the liquid crystal display panel; for the VA type liquid crystal display panel, it is also necessary to design the pixel electrodes of the array substrate as herringbone shape, and add monomers that can be polymerized under ultraviolet light to the liquid crystal molecules to form a specific pre-tilt angle (Pre-angle), so that the liquid crystal is aligned when it is driven, and the process is more complicated

However, due to the high price of the alignment film (usually polyimide material), the high requirements of the coating process, the polymerization uniformity and residual amount of polymer monomers, etc., will make it difficult to guarantee the quality of liquid crystal display panel products.

[0004] In the long-term research and development process, the inventor of the present application found that the preparation process of the existing liquid crystal display panel is complicated and the product quality is poor

Images