Invention Grant
- Patent Title: EL display device and method for manufacturing same
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Application No.: US14131801Application Date: 2012-08-24
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Publication No.: US09620560B2Publication Date: 2017-04-11
- Inventor: Takashi Isobe
- Applicant: Takashi Isobe
- Applicant Address: JP Tokyo
- Assignee: JOLED INC.
- Current Assignee: JOLED INC.
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2011-184349 20110826
- International Application: PCT/JP2012/005323 WO 20120824
- International Announcement: WO2013/031162 WO 20130307
- Main IPC: H01L27/15
- IPC: H01L27/15 ; H01L33/44 ; H01L27/12 ; H01L27/32 ; H01L51/52 ; H05B33/26

Abstract:
An EL display device of the present invention includes a plurality of pixel electrodes, wiring, a common electrode, a plurality of light-emitting layer portions, and a protective layer. The pixel electrodes are formed in one-to-one correspondence with a plurality of pixels. The wiring is formed in at least one of a plurality of intervals between the pixels. The common electrode is formed above each of the pixel electrodes and is in electrical connection with the wiring. The common electrode is made of alkali metal or alkaline earth metal. The light-emitting layer portions are each located between a corresponding one of the pixel electrodes and the common electrode. The protective layer is located on the common electrode, preventing oxidization thereof. The EL display device suppresses voltage drop in the common electrode, while also suppressing reduction in a property of electron injection to the light-emitting layer portions.
Public/Granted literature
- US20140159074A1 EL DISPLAY DEVICE AND METHOD FOR MANUFACTURING SAME Public/Granted day:2014-06-12
Information query
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