发明授权
- 专利标题: Electroluminescent device
- 专利标题(中): 电致发光器件
-
申请号: US643985申请日: 1991-01-22
-
公开(公告)号: US5227252A公开(公告)日: 1993-07-13
- 发明人: Ryuji Murayama , Takeo Wakimoto , Hitoshi Nakada , Masaharu Nomura , Giichi Sato
- 申请人: Ryuji Murayama , Takeo Wakimoto , Hitoshi Nakada , Masaharu Nomura , Giichi Sato
- 申请人地址: JPX Tokyo JPX Tokyo
- 专利权人: Pioneer Electronic Corporation,Nippon Kayaku Kabushiki Kaisha
- 当前专利权人: Pioneer Electronic Corporation,Nippon Kayaku Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo JPX Tokyo
- 优先权: JPX2-12292 19900122; JPX2-228852 19900830
- 主分类号: H05B33/22
- IPC分类号: H05B33/22 ; C09K11/06 ; H01L51/50 ; H05B33/14
摘要:
Electroluminescent device with improved luminous efficiency, where a fluorescent emitting layer and a positive-hole transporting layer are layered on each other and arranged between a cathode and an anode, the two layers comprising organic compounds and the fluorescent emitting layer being composed of quinoline derivative as a host material, characterized by containing in the fluorescent emitting layer, as a guest material, a quinacridone compound of the following formula (A); ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, methyl group or chlorine or the dehydro form of the quinacridone compound.
公开/授权文献
- US5799609A Animal waterer 公开/授权日:1998-09-01