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:
Mar. 20, 2012
Filed:
Mar. 28, 2007
Masanori Yoshihara, Tokyo, JP;
Kouhei Arakawa, Tokyo, JP;
Kyosuke Inoue, Tokyo, JP;
Taku Hatano, Tokyo, JP;
Tetsuya Toyoshima, Tokyo, JP;
Masanori Yoshihara, Tokyo, JP;
Kouhei Arakawa, Tokyo, JP;
Kyosuke Inoue, Tokyo, JP;
Taku Hatano, Tokyo, JP;
Tetsuya Toyoshima, Tokyo, JP;
Zeon Corporation, Tokyo, JP;
Abstract
Provided are a polarization plate which has a high mechanical strength, which does not impair a visibility even under a high temperature and high humidity, which is excellent in flexibility and abrasion resistance, and which reduces a visible disturbance such as color unevenness due to a size change, as well as a liquid crystal display device using the polarization plate. A film composed of a plurality of layers composed mainly of thermoplastic resins is used as a first protection film used for a visible side of the polarization plate, and at least one surface layer of this first protection film is composed mainly of an acrylic resin. Furthermore, a second protection film having a specific property is disposed at a side of a liquid crystal cell.