Process for making a phase retarder film

Details Process for making a phase retarder film Process for making a phase retarder film

1995-02-27

1997-08-19

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Light polarizing article or holographic article

264216, 2642884, B29D 1100

Patent

active

056585055

ABSTRACT:
A phase retarder film made of a thermoplastic resin having an in-plane retardation of 50 to 300 nm and a ratio of the in-plane retardation to the retardation normal to the plane of not less than 0.5 but not more than 1.8, a process for the production thereof and a laminate phase retarder film using said phase retarder film above.

REFERENCES:
patent: 5061042 (1991-10-01), Nakamura et al.
patent: 5285303 (1994-02-01), Okada et al.
patent: 5366682 (1994-11-01), Morikawa et al.
patent: 5472538 (1995-12-01), Minakuchi et al.
patent: 5474731 (1995-12-01), Morikawa et al.
The 13th International Display Research Conference, Council of Europe/European Parliament Aug. 31-Sep. 3, 1993 Conference Proceedings. pp. 149-152.

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