Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – Alignment layer of specified composition
Patent
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.
Gibbons Wayne M.
Rose Patricia A.
Shannon Paul J.
Zheng Hanxing
Elsicon Inc.
Shannon Paul J.
Thomas Alexander S.
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