发明申请
- 专利标题: ORGANIC ELECTROLUMINESCENCE ELEMENT
- 专利标题(中): 有机电致发光元件
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申请号: US12178457申请日: 2008-07-23
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公开(公告)号: US20090026940A1公开(公告)日: 2009-01-29
- 发明人: Hisashi Okada , Manabu Tobise , Masaru Kinoshita
- 申请人: Hisashi Okada , Manabu Tobise , Masaru Kinoshita
- 优先权: JP2007-196673 20070727
- 主分类号: H01J63/04
- IPC分类号: H01J63/04
摘要:
An organic electroluminescence element including an organic layer including at least a light-emitting layer between a pair of electrodes, wherein the light-emitting layer comprises at least two hole transporting materials and an electron transporting host material, with at least one of the hole transporting materials being a hole transporting light-emitting material, and a total concentration of the at least two hole transporting materials in the light-emitting layer decreases from an anode side toward a cathode side.
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