Title: 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
Authors: Long-Hai, Wu
Chain-Shu, Hsu
Ching-Hua, Ting
Issue Date: 14-Oct-2004
Abstract: 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.
Gov't Doc #: G02F001/1335
URI: http://hdl.handle.net/11536/105768
Patent Country: USA
Patent Number: 20040201797
Appears in Collections:Patents


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