发明申请
- 专利标题: Pyran derivative
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申请号: US11732637申请日: 2007-04-04
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公开(公告)号: US20070184304A1公开(公告)日: 2007-08-09
- 发明人: Sachiko Yamagata , Hiroko Abe , Nobuharu Ohsawa , Ryoji Nomura , Satoshi Seo
- 申请人: Sachiko Yamagata , Hiroko Abe , Nobuharu Ohsawa , Ryoji Nomura , Satoshi Seo
- 专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 优先权: JP2003-366706 20031027
- 主分类号: H01L51/54
- IPC分类号: H01L51/54 ; H01L51/52
摘要:
A light-emitting compound that can be easily applied to vacuum vapor deposition and exhibit long wavelength light is disclosed. Further, a light-emitting element without inferior luminescence properties due to the carbonization of a light-emitting compound during vapor deposition; and a light-emitting device that is composed of the light-emitting elements are also disclosed. A pyran derivative is represented by the following general formula 1: wherein R1 is a hydrogen element or an alkoxy group.
公开/授权文献
- US07371470B2 Pyran derivative 公开/授权日:2008-05-13
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