Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-03-07
2006-03-07
Ton, Toan (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
Reexamination Certificate
active
07009671
ABSTRACT:
A liquid crystal device has inorganic alignment layers (36, 42) disposed on a surface of a liquid crystal layer side of a pair of the substrates, when the range of the average pre-tilt angle θ of liquid crystal molecules50aof the liquid crystal layer is 5 degrees ≦θ≦20 degrees, twist angle φ of the liquid crystal molecules (50a) of the liquid crystal layer, cell gap d, and helical pitch P of the liquid crystal molecules of the liquid crystal layer satisfy the relationship of (0.6/360)φ<d/P<(1.4/360)φ, and when the range of the average pre-tilt angle θ of liquid crystal molecules50aof the liquid crystal layer is θ>20 degrees, twist angle φ of the liquid crystal molecules (50a) of the liquid crystal layer, cell gap d, and helical pitch P of the liquid crystal molecules of the liquid crystal layer satisfy the relationship of (0.8/360)φ<d/P<(1.6/360)φ.
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Tanaka Takaaki
Yamazaki Yasushi
Oliff & Berridg,e PLC
Seiko Epson Corporation
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