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:
Oct. 14, 2014
Filed:
Feb. 21, 2012
Masahiro Kasano, Osaka, JP;
Kouki Ichihashi, Osaka, JP;
Masahiro Kasano, Osaka, JP;
Kouki Ichihashi, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
There are provided light-emitting layer provided on transparent substrate and emitting light of a specific wavelength, first reflecting layer formed on a light exit side relative to light-emitting layer and including a function of reflecting light emitted from light-emitting layer, second reflecting layer provided on a side of substrate in a manner to interpose light-emitting layer between first reflecting layer and second reflecting layer; light diffusion layer that diffuses light emitted from light-emitting layer is disposed between first reflecting layer and second reflecting layer; and second reflecting layer is formed of a high reflective metallic layer formed of a metallic film having a high reflectivity, a low refractive index layer formed of a material film having a low refractive index, and a multilayer-film reflective layer formed by laminating films made of materials having different reflectivity.