Process and materials for aligning liquid crystals and liquid cr

Details Process and materials for aligning liquid crystals and liquid cr Process and materials for aligning liquid crystals and liquid cr

1999-12-20

2000-11-07

Thomas, Alexander S.

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

Alignment layer of specified composition

428 126, 349124, 427532, G02F 11337

Patent

active

061433802

ABSTRACT:
The present invention provides a process for preparing an optical alignment layer for aligning liquid crystals and liquid crystal displays comprising exposing polyimide layers with polarized light. The invention further describes optical alignment layers, liquid crystal displays incorporating optical alignment layers and novel polymer compositions within the class of polyimide, polyamic acids and esters thereof.

REFERENCES:
patent: 4002645 (1977-01-01), Sonnenberg
patent: 5807498 (1998-09-01), Gibbons et al.
patent: 5958293 (1999-09-01), Gibbons et al.
J.R. Pratt, et al. Polym. Engineering & Sci., 29 No. 1, Jan., 1989, 63-68.

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