发明授权
- 专利标题： Light-emitting device, image forming apparatus, display device, and electronic apparatus
- 专利标题（中）： 发光装置，图像形成装置，显示装置和电子装置
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申请号： US12578215申请日： 2009-10-13
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公开(公告)号： US07994704B2公开(公告)日： 2011-08-09
- 发明人: Hidekazu Kobayashi
- 申请人： Hidekazu Kobayashi
- 申请人地址： JP Tokyo
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Oliff & Berridge, PLC
- 优先权： JP2006-168402 20060619; JP2006-168403 20060619
- 主分类号： H01J1/62
- IPC分类号： H01J1/62
摘要：
A light-emitting device includes: a substrate; a light reflection layer that is formed on the substrate and reflects light; a first electrode that is formed on the light reflection layer and transmits light; a light-emitting layer that is formed on the first electrode and emits light; a second electrode that is formed on the light-emitting layer and transmits a part of light from the light-emitting layer and reflects the rest of the light from the light-emitting layer; and a conductive transflective layer that is formed on the second electrode and that transmits a part of light from the second electrode and reflects the rest of the light from the second electrode. A work function of the second electrode is 4 eV (electron volts) or less. The conductive transflective layer is formed of a metal material having a higher optical reflectance than the second electrode.
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