Title:
SMECTIC LIQUID CRYSTAL DEVICE
Document Type and Number:
Japanese Patent JP2804908
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a smectic liquid crystal device, which can be switched between two liquid crystal molecular orientation conditions.
SOLUTION: The inner surface of a cell wall has a surface treated so as to give an electrode structure and inclined homogeneous liquid crystal orientation, and the chiral inclination smectic liquid crystal material, which is included between the cell wall surfaces, has a cholesteric phase at a high temperature between the chiral inclination smectic phase and an isotropic phase, and a pitch of the cholesteric phase is larger than a half of the layer thickness over a temperature between the transition temperature between the cholesteric phase and the smectic phase and the temperature higher by 0.1 degree C than this transition temperature, and has a spontaneous polarization at 0.1nC/cm2 or more in the chiral inclination M smectic phase, and the pitch in the chiral inclination smectic phase is larger than the thickness of the liquid crystal phase, and two linear polarizers 2, 3 are arranged on both sides of the cell wall.
Inventors:
Madarin Youth Bratz de Chault
Edward Peter Raines
Edward Peter Raines
Application Number:
JP23735595A
Publication Date:
September 30, 1998
Filing Date:
September 14, 1995
Export Citation:
Assignee:
United Kingdom
International Classes:
G02F1/137; G02F1/13; G02F1/133; G02F1/1337; G02F1/141; (IPC1-7): G02F1/141
Domestic Patent References:
| JP61252532A | ||||
| JP61174294A | ||||
| JP61153623A | ||||
| JP62205189A | ||||
| JP62205190A | ||||
| JP62141093A | ||||
| JP62143030A | ||||
| JP62146984A | ||||
| JP61249019A | ||||
| JP56107216A |
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)
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