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. 17, 2005
Filed:
Dec. 17, 2001
Ichiro Fujieda, Tokyo, JP;
Takashi Fukuchi, Tokyo, JP;
Shinzo Tsuboi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A light emitting device and the production method thereof are provided, which are characterized by low manufacturing costs, low power consumption, and high luminous efficiency. The production method comprises processes of forming a transparent electrode layer above a transparent substrate in order to supply current to a luminous material layer, forming the luminous material layer emitting light by supplying the current thereto on the transparent electrode layer, and forming a reflecting electrode layer on the luminous material layer in order to supply current to the luminous material layer. A plurality of opening is formed in the transparent electrode layer with a predetermined pattern. By the openings, slope sections are formed in the luminous material layer and the reflecting electrode layer. Thereby, it is possible to increase the luminous efficiency of the light emitting device.