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. 29, 2013
Filed:
Aug. 13, 2010
Takayoshi Yanai, Ichihara, JP;
Masayuki Saito, Ichihara, JP;
Takayoshi Yanai, Ichihara, JP;
Masayuki Saito, Ichihara, JP;
JNC Corporation, Tokyo, JP;
JNC Petrochemical Corporation, Tokyo, JP;
Abstract
The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of the nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics. The subject is also to provide the AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life, and so forth. The invention provides a liquid crystal composition having a negatively dielectric anisotropy containing a specific compound having a negatively large dielectric anisotropy as a first component, and a specific compound having a negatively large dielectric anisotropy as a second component, and provides a liquid crystal display device containing this composition.