Retardation film and liquid crystal display device using the...

Details Retardation film and liquid crystal display device using the... Retardation film and liquid crystal display device using the...

2011-01-11

2011-01-11

Teskin, Fred M (Department: 1796)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C526S281000, C526S348100, C349S117000

Reexamination Certificate

active

07867581

ABSTRACT:
A retardation film, formed by stretching a film including a norbornene-based, ring-opening polymer containing a structural unit (A) represented by a formula (1), has high transparency, excellent wavelength dispersion characteristics in a single layer, is capable of providing specific retardation to broadband light, is extremely adhesive to other materials, is capable of attaining optical characteristics that are unique among negative birefringence characteristics, and is capable of providing a reverse dispersion of birefringence wavelength dispersion characteristics. The present invention also provides a liquid crystal display device using the foregoing film.

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