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:
Apr. 09, 2013
Filed:
Nov. 03, 2011
Hsin-hung Liu, Taichung, TW;
Hui-yu Chen, Taichung, TW;
Ji-yi Chou, Taichung, TW;
Jia-liang Lai, Changhua County, TW;
Yu-hsien Chen, Kaohsiung, TW;
Huai-an LI, Taoyuan County, TW;
Hsin-Hung Liu, Taichung, TW;
Hui-Yu Chen, Taichung, TW;
Ji-Yi Chou, Taichung, TW;
Jia-Liang Lai, Changhua County, TW;
Yu-Hsien Chen, Kaohsiung, TW;
Huai-An Li, Taoyuan County, TW;
Feng Chia University, Seatwen, Taichung, TW;
Chunghwa Picture Tubes, Ltd., Bade, Taoyuan, TW;
Abstract
A blue phase liquid crystal composition includes a chiral dopant, a positive liquid crystal component and a negative liquid crystal component. The positive liquid crystal component includes at least one positive liquid crystal material, has a positive dielectric anisotropy and has no blue phase properties with respect to the chiral dopant. In addition, the negative liquid crystal component includes at least one negative liquid crystal material, has a negative dielectric anisotropy and has no blue phase properties with respect to the chiral dopant, so that the blue phase liquid crystal composition has a dielectric anisotropy between 0.5 and 14 and a blue phase temperature range larger than 3° C.