Invention Grant
- Patent Title: Organic electroluminescent element, illuminator and display
- Patent Title (中): 有机电致发光元件,照明器和显示器
-
Application No.: US10565043Application Date: 2004-07-08
-
Publication No.: US07839075B2Publication Date: 2010-11-23
- Inventor: Yoshiyuki Suzuri , Hiroshi Kita , Aki Nakata
- Applicant: Yoshiyuki Suzuri , Hiroshi Kita , Aki Nakata
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta Holdings, Inc.
- Current Assignee: Konica Minolta Holdings, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz, Goodman & Chick, P.C.
- Priority: JP2003-200425 20030723
- International Application: PCT/JP2004/010082 WO 20040708
- International Announcement: WO2005/009088 WO 20050127
- Main IPC: H01L51/52
- IPC: H01L51/52

Abstract:
An organic electroluminescent element containing an anode and a cathode having therebetween a light emitting layer containing a phosphorescent compound, and hole blocking layer 1 provided adjacent to the light emitting layer and between the light emitting layer and the cathode, wherein hole blocking layer 1 contains a phosphorescent compound; and a content of the phosphorescent compound contained in hole blocking layer 1 is in the range of 0.1 to 50% of a content of the phosphorescent compound contained in the light emitting layer.
Public/Granted literature
- US20060175957A1 Organic electroluminescent device, illuminating device and display Public/Granted day:2006-08-10
Information query
IPC分类: