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:
Jan. 30, 2001
Filed:
Nov. 19, 1999
Applicant:
Inventors:
Kei-Hsiung Yang, Katonah, NY (US);
Minhua Lu, Mohegan Lake, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1335 ;
U.S. Cl.
CPC ...
G02F 1/1335 ;
Abstract
A twist discotic-type liquid-crystal or liquid-crystalline film with negative birefringence is as a compensation film for either single-domain or two-domain liquid crystal display cells to achieve better view-angle characteristics, less color-shift as a function of applied voltage, and faster response times than uncompensated 90°-twist single-domain or two-domain cells.
Yang, Kei-Hsiung. (2001). Discotic-type twist-film compensated single-domain or two-domain twisted nematic liquid crystal displays (U.S. Patent No. 6181400). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6181400
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile