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. 24, 2009
Filed:
Dec. 03, 2007
Kung-lung Cheng, Hsinchu, TW;
Shih-hsien Liu, Hsinchu County, TW;
Ann-cheng Chen, Hsinchu, TW;
Peu-jane Haung, Taipei, TW;
Chih-lung Chin, Taoyuan County, TW;
Kung-Lung Cheng, Hsinchu, TW;
Shih-Hsien Liu, Hsinchu County, TW;
Ann-Cheng Chen, Hsinchu, TW;
Peu-Jane Haung, Taipei, TW;
Chih-Lung Chin, Taoyuan County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Daily Polymer Corporation, Kaohsiung Hsien, TW;
Abstract
The invention relates to a high dielectric anisotropy liquid crystal compound which is a pyridyl derivative with substituents of electrons push-pull effect. Furthermore, the high dielectric anisotropy liquid crystal compounds are colorless and have high thermal and photo stability as well as high compatibility in a liquid crystal host. A liquid crystal composition containing the high dielectric anisotropy liquid crystal compound can reduce threshold voltage of cholesteric reflective displays, thus saving power and extending lifetime of driver ICs.