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:
May. 10, 2022
Filed:
Dec. 12, 2017
Dic Corporation, Tokyo, JP;
Hiroshi Hasebe, Kitaadachi-gun, JP;
Toru Fujisawa, Kitaadachi-gun, JP;
Yoshinori Iwashita, Kitaadachi-gun, JP;
Fumiaki Kodera, Kitaadachi-gun, JP;
Keisuke Fujisawa, Kitaadachi-gun, JP;
Kenji Nakamura, Kitaadachi-gun, JP;
Yuichi Satokawa, Kitaadachi-gun, JP;
DIC CORPORATION, Tokyo, JP;
Abstract
To provide a liquid crystal display device that has a high off-response speed and a good balance between drive voltage and transmittance, is stable over time, and also has a high voltage holding ratio. A liquid crystal display device in which a liquid crystal layer containing a polymer network (A) and a liquid crystal composition (B) is disposed between two substrates having an electrode on at least one side thereof and having transparent properties on at least one side thereof, and the loss factor (tan δ) (loss modulus/storage modulus) of the liquid crystal layer calculated from the storage modulus (Pa) and the loss modulus (Pa) in a sinusoidal vibration measured with a rheometer at 25° C. and at a measurement frequency of 1 Hz ranges from 0.1 to 1.