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PRODUCTION OF TWIST ORIENTED PHASE DIFFERENCE PLATE, TWIST ORIENTED PHASE DIFFERENCE PLATE AND ELLIPTICAL POLARIZING PLATE
PRODUCTION OF TWIST ORIENTED PHASE DIFFERENCE PLATE, TWIST ORIENTED PHASE DIFFERENCE PLATE AND ELLIPTICAL POLARIZING PLATE
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机译：扭转相位差板，扭转相位差板和椭圆极化板的生产
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摘要
PROBLEM TO BE SOLVED: To obtain a phase difference plate which is suitable for continuous production, has a small residual phase difference and has heat resistance by forming a high-molecular liquid crystal polymer layer on a translucent film substrate obtd. by an annealing treatment including a stage for lowering the temp. of a resin from its glass transition point down to room temp. at a specific rate or below. ;SOLUTION: The translucent film substrate is obtd. by the annealing treatment including a stage for heating a translucent resin film in the state of applying tension thereon and lowering the temp. of the resin constituting this translucent resin film from its glass transition point down to room temp. at a rate of ≤10°C/min. The twist nematic oriented high-molecular liquid crystal polymer layer is formed on this translucent film substrate. Annealing is executed under prescribed conditions. In such a case, plural heating rolls 1 are preferably so arranged as to shorten the time when the film 2 does not come into contact with the heating rolls 1 as far as possible between the adjacent rolls 1 in the method of using the plural heating rolls 1.;COPYRIGHT: (C)1997,JPO
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