Method of fabricating an optical retardation film

Details Method of fabricating an optical retardation film Method of fabricating an optical retardation film

1996-05-02

1998-04-28

Vargot, Mathieu D.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156102, 264 134, 264 21, 264216, 4271631, B29D 1100

Patent

active

057439800

ABSTRACT:
A method of fabricating an optical retardation film having single axis crystal. A polymer material such as polyvinyl alcohol, polystyrene, polycarbonate, or poly methylmethacrylate dissolved in an alkyl solvent forms a polymer solution. A coating of the solution is deposited on a glass substrate by means of a spin coater. The coated substrate is heated in an oven or a heating pad to dry the polymer film. The dried film separated from the glass substrate forms the optical retardation film.

REFERENCES:
patent: 4812279 (1989-03-01), Nakagawa et al.
patent: 5042924 (1991-08-01), Terasaki et al.
patent: 5236635 (1993-08-01), Yoshida
patent: 5468324 (1995-11-01), Hong
patent: 5478518 (1995-12-01), Taketani et al.

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