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. 01, 2001
Filed:
Feb. 03, 1999
Mitsuo Nakamura, Yokohama, JP;
Yoichiro Yabe, Yokosuka, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An EL panel package film comprises, for example, a PCTFE film or a PET film having a moistureproof layer. This EL panel package film has irregularities of 3 &mgr;m or more in arithmetic average roughness (Ra) and 10 &mgr;m or more in maximum height (Ry) specified in JIS G 0601 on at least one of its surfaces. The EL panel is configured by using the EL panel package film having such surface irregularities as a package film on at least a light emitting surface side. Oscillations produced due to the polarity inversion of an alternate voltage applied to the EL panel are absorbed and dispersed by the irregularities formed on the package film surface. A LCD module has such an EL panel as the backlight. Noise from the LCD cell surface is reduced.