G - Physics – 02 – F
Patent
G - Physics
02
F
G02F 1/1337 (2006.01) G02F 1/141 (2006.01)
Patent
CA 2133711
A liquid crystal device is constituted by a pair of substrates, and a chiral smectic liquid crystal assuming at least two stable states disposed between the twa substrates. At least one of the substrates is subjected to a uniaxial aligning treatment in two directions including a normal direction and a reverse direction substantially opppsite to the normal direction. The liquid crystal is placed in an alignment state such that the liquid crystal provides an apparent tilt angle .THETA.a which is a half of an angle between said two stable states, a tilt angle H and a pretilt angle .alpha. with respect to a substrate surface, and forms smectic layers forming an inclination angle .delta. from a normal to the substrate surfaces, satisfying: H/2 < .THETA.a ~ H and O > .alpha. + .delta.. According to the liquid crystal device, an undesirable liquid crystal molecular movement along the substrates is effectively suppressed.
Kaneko Shuzo
Kishi Etsuro
Miyata Hirokatsu
Nakamura Katsutoshi
Shibata Masaaki
Canon Kabushiki Kaisha
Ridout & Maybee Llp
LandOfFree
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