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:
Jun. 26, 2007
Filed:
Jan. 22, 2003
Junichi Adachi, Ibaraki, JP;
Shuuji Yano, Ibaraki, JP;
Takashi Yamaoka, Ibaraki, JP;
Masayuki Kawai, Ibaraki, JP;
Kanako Wasai, Ibaraki, JP;
Nao Murakami, Ibaraki, JP;
Junichi Adachi, Ibaraki, JP;
Shuuji Yano, Ibaraki, JP;
Takashi Yamaoka, Ibaraki, JP;
Masayuki Kawai, Ibaraki, JP;
Kanako Wasai, Ibaraki, JP;
Nao Murakami, Ibaraki, JP;
Nitto Denko Corporation, Osaka, JP;
Abstract
The present invention provides an optical compensation plate having an optical compensation layer in which cracks occurring due to an applied pressure is suppressed. By applying a curable adhesive agent onto at least one surface of the optical compensation layer and curing the adhesive, an anti-cracking layer is formed directly on the surface of the optical compensation layer. The occurrence of cracks in the optical compensation layer can be prevented by this anti-cracking layer. The optical compensation layer preferably is a layer having a cholesteric structure, and the constituent material thereof is preferably a non-liquid crystal polymer formed by polymerizing aligned liquid crystal monomers or an aligned liquid crystal polymer.