发明授权
US08057700B2 Liquid crystal photo-alignment agent and liquid crystal photo-alignment film and liquid crystal display including the same 有权
液晶光取向剂和液晶光取向膜以及包括其的液晶显示器

Liquid crystal photo-alignment agent and liquid crystal photo-alignment film and liquid crystal display including the same
摘要:
One embodiment of the present invention provides a liquid crystal photo-alignment agent that includes a polyamic acid copolymer including a repeating unit having the following Formula 1 and a repeating unit having the following Formula 2; a polyimide copolymer including a repeating unit having the following Formula 3 and a repeating unit having the following Formula 4; or a combination thereof: wherein the definition of R1 to R8 are the same as in the specification. The liquid crystal photo-alignment agent can have improved liquid crystal alignment properties, electrical characteristics such as voltage holding ratio, pretilt angle, residual DC, and the like, printability, cleaning stability, and spot stability, and is capable of unidirectionally aligning liquid crystals by ultraviolet (UV) exposure.
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