Electro-optical cell for field effect type liquid crystal displa

Details Electro-optical cell for field effect type liquid crystal displa Electro-optical cell for field effect type liquid crystal displa

1975-11-28

1976-11-30

Bauer, Edward S.

Compositions

Radioactive compositions

Nuclear reactor fuel

252299, 428 1, G02F 113

Patent

active

039945677

ABSTRACT:
An electro-optical cell comprises, on an optical path, a pair of electrode base plates and a nematic liquid crystal material having a positive dielectric anisotropy and sandwiched between the electrode base plates, each of which comprises a transparent base plate having an inner surface, an electrode film provided on the inner surface, and a polyimide resin film orientated in one direction and provided on the inner surface over the electrode film, the electrode base plates being mutually disposed on opposite sides of the liquid crystal material with their respective polyimide resin films on their inner sides in mutually facing state with the orientated direction of one polyimide resin film intersecting that of the other as viewed along the optical path. An advantageous feature of this electro-optical cell is that the electrode base plates thereof has durable and heat-resistant orientation which can impart a uniform, initial alignment of ample strength to the liquid crystal.

REFERENCES:
patent: 3864021 (1975-02-01), Katagiri et al.
patent: 3912366 (1975-10-01), Sprokel
patent: 3941901 (1976-03-01), Harsch
patent: 3947184 (1976-03-01), Saeva et al.
patent: 3955881 (1976-05-01), Yaguchi et al.

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