G - Physics – 02 – F
Patent
G - Physics
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F
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G02F 1/137 (2006.01) C09K 19/02 (2006.01) G02F 1/139 (2006.01)
Patent
CA 1280195
Abstract A liquid crystal display (LCD) cell comprising a highly twisted nematic liquid crystal disposed between two electrode plates and polarizers and having a positive dielectric anisotropy. The optical path difference .DELTA..d is 0.2 to 0.7 µm and the ratio d/P of thickness to pitch is 0.2 to 0.6. The absolute value of the twist angle can be between 120° and 260° for a right-hand twist or left-hand twist, the angle ? between the polarizers can be between 0° and 180° and the angle .beta. between the surface orientation direction and the polarization direction on the screen on the light incidence side can be between 0° and 360°.
545218
Leenhouts Frans
Schadt Martin
F. Hoffmann-La Roche Ag
Gowling Lafleur Henderson Llp
Roche Holding Ltd.
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