Optically-anisotropic film and liquid-crystal display device

Details Optically-anisotropic film and liquid-crystal display device Optically-anisotropic film and liquid-crystal display device

2007-09-25

2010-12-14

Wu, Shean C (Department: 1795)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C349S075000, C349S117000, C428S001300

Reexamination Certificate

active

07851031

ABSTRACT:
A novel optically-anisotropic film is disclosed. The film is formed of a composition comprising at least one discotic liquid-crystal compound having a ratio, α1, which is a ratio of birefringence at 400 nm to birefringence at 550 nm in a liquid-crystal state, of less than 1.25, in which the molecules of the liquid-crystal compound are fixed in an alignment state at a mean tilt angle ranging from 35 to 85°, wherein its in-plane retardation Re, as measured in a direction normal to a plane of the optically-anisotropic film for 550 nm wavelength light, falls within the range from 60 nm to 220 nm.

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patent: WO 2007029771 (2007-03-01), None

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