Liquid crystal projector having a vertical orientating polyimide film
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United States of America Patent
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Dec 19, 1995
Grant Date -
N/A
app pub date -
Jan 21, 1994
filing date -
Jan 21, 1993
priority date (Note) -
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Abstract
In the present invention, a liquid crystal projector has a reflective type liquid crystal element having opposed substrates and a liquid crystal layer between the substrates and projects a light image generated by the reflective type liquid crystal element. A orienting means of liquid crystal molecules provided in the reflective type liquid crystal element is a polyimide film with a vertical orientating characteristic as an orientation means. By rubbing the orienting means, a angle of inclination (pre-tilt angle) is predetermined. By using the reflective type liquid crystal element, the liquid crystal projector has a excellent light stability and a excellent display quality.
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