Liquid crystal alignment film birefringence compensation

Details Liquid crystal alignment film birefringence compensation Liquid crystal alignment film birefringence compensation

1977-05-02

1979-01-30

Bauer, Edward S.

350157, G02F 113

Patent

active

041369335

ABSTRACT:
Alignment films provided on a supportive substrate in accordance with the Janning technique exhibit birefringence wherein plane polarized light in passing through the alignment film becomes elliptically polarized. Birefringence compensation is provided by depositing a second alignment film on the other side of the supportive substrate in a direction substantially orthogonal to the deposition direction of the first alignment film, the second alignment film having a thickness substantially equal to that of the first alignment film.

REFERENCES:
patent: 3506333 (1970-04-01), Land
patent: 3881808 (1975-05-01), Gurtler et al.
patent: 3944331 (1976-03-01), Janning
Crossland: "Birefringence in Silicon Monoxide Films used for Aligning Liquid Crystal Lazers," Applied Physics Letters, vol. 26, pp. 598-600, Jun. 1, 1975.

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