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. 27, 2001
Filed:
Sep. 01, 1999
Kiichi Shimodaira, Osaka, JP;
Masayuki Satake, Osaka, JP;
Toshiyuki Umehara, Osaka, JP;
Hiroshi Sugawa, Osaka, JP;
Nitto Denko Corporation, Osaka, JP;
Abstract
There is provided an optical member having an optical material and a tacky layer provided on at least one surface of the optical material. The tacky layer has an initial adhesive force of not smaller than 400 g per 25 mm based on 90° peeling from a resin substrate and has an adhesive force of not larger than 1000 g per 25 mm after heating at 70° C. for 5 hours. There is also provided a cell substrate made of a resin substrate. The resin substrate has an initial adhesive force of not smaller than 400 g per 25 mm on based on 90° peeling from the tacky layer provided on the optical material and having an adhesive force of not larger than 1000 g per 25 mm after heating at 70° C. for 5 hours. And there is provided a liquid-crystal display in which the optical member is adhesively bonded through the tacky layer of the optical member to the surface of a liquid-crystal cell formed by used of the cell substrate.