Method of manufacturing liquid crystal alignment layer, liquid crystal alignment layer manufactured by using the same, and liquid crystal display device
申请人:LG CHEM, LTD.
公开号:US10696901B2
公开(公告)日:2020-06-30
Provided are a method of manufacturing a liquid crystal alignment layer, a liquid crystal alignment layer manufactured by using the same, and a liquid crystal display device including the liquid crystal alignment layer. More specifically, provided are the method of manufacturing the liquid crystal alignment layer with enhanced alignment property and stability, in which a liquid crystal aligning agent is applied onto a substrate, and after drying, alignment treatment is immediately performed by light irradiation while omitting a high-temperature heat treatment process, and then the alignment-treated coating film is cured by heat treatment, thereby reducing light irradiation energy required in the process and simplifying the process by omitting the high-temperature heat treatment process before light irradiation, the liquid crystal alignment layer, and the liquid crystal display device including the same.
Composition for liquid crystal alignment agent, manufacturing method of liquid crystal alignment film, liquid crystal alignment film using the same and liquid crystal display device
申请人:LG CHEM, LTD.
公开号:US11347110B2
公开(公告)日:2022-05-31
Provided are a composition for a liquid crystal alignment agent, a manufacturing method of a liquid crystal alignment film, a liquid crystal alignment film using the same, and a liquid crystal display device including the liquid crystal alignment film. More specifically, there are provided the manufacturing method of a liquid crystal alignment film capable of providing the liquid crystal alignment film in which light irradiation energy is able to be reduced, and alignment characteristic and stability are excellent and the voltage holding ratio and electrical characteristics are also excellent through a simple process including applying and drying the composition for a liquid crystal alignment agent on the substrate, directly performing light irradiation to conduct alignment treatment while a high-temperature heat treatment process is omitted, followed by curing by heat treatment, the liquid crystal alignment film, and the liquid crystal display device including the same.