Invention Grant
- Patent Title: Organic electroluminescence element
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Application No.: US14003108Application Date: 2012-03-01
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Publication No.: US09640775B2Publication Date: 2017-05-02
- Inventor: Satoru Oohisa , Yoshiyuki Suzuri , Shuri Sato
- Applicant: Satoru Oohisa , Yoshiyuki Suzuri , Shuri Sato
- Applicant Address: JP Tokyo
- Assignee: KONICA MINOLTA, INC.
- Current Assignee: KONICA MINOLTA, INC.
- Current Assignee Address: JP Tokyo
- Agency: Lucas & Mercanti, LLP
- Priority: JP2011-047301 20110304
- International Application: PCT/JP2012/055228 WO 20120301
- International Announcement: WO2012/121101 WO 20120913
- Main IPC: C09K11/06
- IPC: C09K11/06 ; H01L51/50 ; C07D209/86 ; C07D405/10 ; C07D405/14 ; C07D409/14 ; C07D471/04 ; H05B33/14 ; H01L51/00 ; H01L51/52

Abstract:
Provided is an organic EL element having a high emission efficiency, a light emission life, and excellent high-temperature preservation stability. This organic electroluminescence element has at least one light-emitting layer between a positive electrode and a negative electrode. The light-emitting layer comprises at least one type of light-emitting dopant and at least three types of non-emitting organic materials represented by general formula (2); of the non-emitting organic materials, the material with the largest molecular weight has a molecular weight of 1,500 or less; and the minimum content of the non-emitting organic materials is 1 mass % or greater.
Public/Granted literature
- US20130341612A1 ORGANIC ELECTROLUMINESCENCE ELEMENT Public/Granted day:2013-12-26
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