Process for preparing positive-negative blended optical retardation film, positive-negative blended optical retardation film, and liquid crystal display element and liquid crystal display device using the same
申请人:National Chiao Tung University
公开号:US20040201797A1
公开(公告)日:2004-10-14
The invention provides a process for preparing a positive-negative-blended optical retardation film comprising coating a solution consisting of discotic and rod-like liquid crystal onto an alignment layer after unidirectionally rubbing treatment on a substrate, subsequently heating the coating to obtain a film consisting of discotic and rod-like liquid crystal with uniform arrangement, and then curing it through exposing under a UV-irradiation to obtain a positive-negative-blended optical retardation film with excellent viewing angle; and a positive-negative-blended optical retardation film. Further, the invention also provides a liquid crystal element and a liquid crystal device having said positive-negative-blended optical retardation film.
本发明提供了一种正负混合型光缓膜的制备方法,包括在基底上单向摩擦处理后,将由盘状液晶和棒状液晶组成的溶液涂布在配向层上,随后加热涂布层,得到由均匀排列的盘状液晶和棒状液晶组成的薄膜,然后在紫外线照射下固化,得到视角极佳的正负混合型光缓膜;以及一种正负混合型光缓膜。此外,本发明还提供了一种液晶元件和液晶装置,该液晶元件和液晶装置具有所述正负混合型光缓膜。