发明授权
- 专利标题: Organic electroluminescent element
- 专利标题(中): 有机电致发光元件
-
申请号: US12450389申请日: 2008-03-25
-
公开(公告)号: US08518558B2公开(公告)日: 2013-08-27
- 发明人: Kunimasa Hiyama , Shigeru Kojima
- 申请人: Kunimasa Hiyama , Shigeru Kojima
- 申请人地址: JP Tokyo
- 专利权人: Konica Minolta Holdings, Inc.
- 当前专利权人: Konica Minolta Holdings, Inc.
- 当前专利权人地址: JP Tokyo
- 代理机构: Holtz Holtz Goodman & Chick PC
- 优先权: JP2007-087240 20070329
- 国际申请: PCT/JP2008/055531 WO 20080325
- 国际公布: WO2008/120611 WO 20081009
- 主分类号: H01L51/54
- IPC分类号: H01L51/54
摘要:
An organic electroluminescent element having at least an anode, a cathode, and a light-emitting layer held between the anode and the cathode on a substrate and emitting white light. The light-emitting layer consists of three or less layers, the light-emitting material contained entirely in the light-emitting layer consists of at least four kinds of light-emitting material having different emission maximum wavelengths (λmax). The four kinds of light emitting material have emission colors of blue, green, yellow red and red, and since one or more layers out of the three or less layers of the light-emitting layer contain two or more kinds of light-emitting material simultaneously, there is obtained an organic electroluminescent element excellent in color rendering and exhibiting high power efficiency in which variation in emission color is small even if current density varies.
公开/授权文献
- US20100045172A1 ORGANIC ELECTROLUMINESCENT ELEMENT 公开/授权日:2010-02-25
信息查询
IPC分类: