Invention Grant
- Patent Title: Light emitting device and method of producing a light emitting device
- Patent Title (中): 发光装置及其制造方法
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Application No.: US11677251Application Date: 2007-02-21
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Publication No.: US07768031B2Publication Date: 2010-08-03
- Inventor: Naho Itagaki , Tomoyuki Oike , Tatsuya Iwasaki , Toru Den
- Applicant: Naho Itagaki , Tomoyuki Oike , Tatsuya Iwasaki , Toru Den
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2006-076840 20060320
- Main IPC: H01L33/26
- IPC: H01L33/26 ; H05B33/14
Abstract:
To provide a DC drive type inorganic light emitting device excellent in luminous efficiency, provided is a light emitting device, including: a substrate; and a first layer and a second layer laminated on the substrate, in which the second layer is formed of a first portion containing Zn and at least one element chosen from S and Se as its constituent elements; and a second portion containing at least one element chosen from Cu and Ag and at least one element chosen from S and Se as its constituent elements; the first layer is made of a light emitting layer formed of at least one element chosen from S and Se and of Zn; and, in the second layer, the second portion has a cross section parallel to the substrate which tapers toward the first layer.
Public/Granted literature
- US20070216287A1 LIGHT EMITTING DEVICE AND METHOD OF PRODUCING A LIGHT EMITTING DEVICE Public/Granted day:2007-09-20
Information query
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