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. 18, 2002
Filed:
Nov. 10, 2000
Kazuhito Okumura, Ibaraki, JP;
Hidehiko Andou, Ibaraki, JP;
Nitto Denko Corporation, Ibaraki, JP;
Abstract
A film for protecting a display surface of a liquid crystal display is provided, which contains a polymer film having a coefficient of bending stress k as expressed by the formula: k=Eh , wherein E is a tensile elastic modulus (N/mm ) in a machine direction and h is a thickness (mm), of not less than 0.01 (N·mm), and which shows an amount of moisture permeation at 35° C., 80% RH (relative humidity) for 72 hours of not less than 100 g/m ·72 hr. According to the present invention, the protection film can be applied to the display surface of a liquid crystal module with superior workability during assembling. The film prevents occurrence of changes in optical hue (color shading) on the display surface in the state of actual use upon peeling off of the protection film after distribution process.