The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 2000
Filed:
Dec. 20, 1999
Applicant:
Inventors:
Wayne M Gibbons, Bear, DE (US);
Patricia A Rose, Wilmington, DE (US);
Paul J Shannon, Exton, PA (US);
Hanxing Zheng, Wilmington, DE (US);
Assignee:
Elsicon Inc., Newark, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
428-127 ; 428-126 ; 349124 ; 427532 ;
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.