Optical directional material improving optical directional performance of liquid crystal and its preparing method

Abstract

The invention discloses a material to improve the LCD-oriented directional optical properties fabrication methods, which belongs to photosensitive materials technology. The photosensitive materials are mixed of epoxy resin-based materials and polymer-oriented materials. Those two containing materials corporations are cinnamoyl cyclization reaction, thereby induced liquid crystal alignment. The material for the preparation methods is to replace the benzene ring cinnamic acid and slightly excessive thionyl chloride and so on the benzene ring completely replace the cinnamon chloride solution Solutions to increase with the acid absorbent polar aprotic solvents, phenol or two polyphenol solution drop wise, be used doped photosensitive materials, photosensitive materials to be epoxy-based polymers for optical orientation of mixed-orientation was obtained material. This invention can improve LCD-directional capability of a single polymer-oriented material, and also achieve proper optical directional effects by choosing the type of photosensitive materials and the ratio of them.

Description

technical field [0001] The invention belongs to the technical field of photosensitive materials, and in particular relates to a photo-alignment material for an alignment layer of a liquid crystal display and a preparation method. Background technique [0002] Polymer photosensitive materials and related technologies are one of the key areas of scientific research on polymer materials, which can be widely used in many aspects of the electronics and optoelectronics industries. One of its potentially important applications is as a liquid crystal photo-alignment layer material. High-quality liquid crystal displays require liquid crystals to have a stable and uniform initial alignment. Thin layers that induce liquid crystal alignment are called liquid crystal alignment layers. In order to obtain a uniform alignment along the plane, a variety of liquid crystal alignment methods have been reported in the literature in the past, such as: [0003] Inclined evaporation method: This...

AI Technical Summary

Problems solved by technology

At present, photo-alignment technology is mainly realized by photo-alignment polymer materials, and the types and quantities of polymer materials used have been very rich, including polyimide, polysiloxane, polyurethane, epoxy resin, polyvinyl alcohol, etc. Photo-alignment polymer materials, but most of them are single polymer materials. To meet the requirements of practical applications, the existing materials still need to be greatly improved in the uniform stability of oriented liquid crystals, display contrast and other directional properties.

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