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1. US20080303419 - Light-emitting apparatus having periodic structure and sandwiched optical waveguide

Office United States of America
Application Number 12028107
Application Date 08.02.2008
Publication Number 20080303419
Publication Date 11.12.2008
Grant Number 07868542
Grant Date 11.01.2011
Publication Kind B2
IPC
H05B 33/02
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
02Details
H05B 33/00
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
H01L 33/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
Applicants Canon Kabushiki Kaisha
Inventors Fukuda Koichi
Agents Fitzpatrick, Cella, Harper & Scinto
Priority Data 2007-030476 09.02.2007 JP
2007-187796 19.07.2007 JP
2008011088 22.01.2008 JP
Title
(EN) Light-emitting apparatus having periodic structure and sandwiched optical waveguide
Abstract
(EN)

Provided is a light-emitting apparatus which can improve the light extraction efficiency without adversely influencing a functional layer of a light-emitting device and which includes a substrate; a light-emitting device formed on the substrate, the light-emitting device including: a first electrode formed on the substrate; an insulating member covering a periphery of the first electrode; and a functional layer formed on an exposed portion of the first electrode and including an emission layer; and a second electrode formed on the functional layer and the insulating member, in which a periodic structure is formed on a surface of the insulating member opposite to a substrate side, and an optical waveguide is formed between a bottom portion of the periodic structure and the first electrode or between the bottom portion of the periodic structure and the substrate.