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Title:
LIQUID CRYSTAL ELECTROOPTICAL DEVICE
Document Type and Number:
Japanese Patent JPH0331821
Kind Code:
A
Abstract:
PURPOSE:To facilitate orientation control and to increase a response speed by using a nematic liquid crystal having the positive anisotropy of a dielectric constant, subjecting a liquid crystal oriented layer consisting of an org. material to a rubbing treatment and thinly forming the spacing between substrates. CONSTITUTION:ITO is formed on two sheets of soda glass to produce electrodes 5. Polyamic acid is thereafter applied on the electrode forming surface of the one substrate 1 and is heated, by which a polyimide thin film is obtd. as the liquid crystal oriented layer 6. After the thin film is rubbed by using a cotton fabric, SiO2 particles 2.8mum diameter are sprayed as spacers. The electrode forming surface of the other substrate 2 (the side where the polyimide thin film is not formed) is subjected to seal printing and this substrate is stuck to the substrate 1 sprayed with the spacers. The nematic liquid crystal having the positive anisotropy of the dielectric constant is injected between the substrates. As a result, the liquid crystal molecules 3 orient in the rubbing direction over the entire part and polarizing plates 4 are disposed in crossed nicols. A voltage is then impressed to the electrodes. The response speed is increased in this way.

Inventors:
SATO MASAHIKO
Application Number:
JP16798189A
Publication Date:
February 12, 1991
Filing Date:
June 28, 1989
Export Citation:
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Assignee:
SEMICONDUCTOR ENERGY LAB
International Classes:
G02F1/1333; G02F1/1337; (IPC1-7): G02F1/1333; G02F1/1337
Domestic Patent References:
JPS63155034A1988-06-28



 
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