- 专利标题： Light-Emitting Device, Light-Emitting Apparatus, Light-Emitting Module, Electronic Device, and Lighting Device
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申请号： US17612299申请日： 2020-05-18
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公开(公告)号： US20220223812A1公开(公告)日： 2022-07-14
- 发明人: Takeyoshi Watabe , Airi UEDA , Nobuharu OHSAWA , Satoshi SEO
- 申请人： Semiconductor Energy Laboratory Co., Ltd.
- 申请人地址： JP Kanagawa-ken
- 专利权人： Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人： Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人地址： JP Kanagawa-ken
- 优先权： JP2019-102034 20190531
- 国际申请： PCT/IB2020/054664 WO 20200518
- 主分类号： H01L51/50
- IPC分类号： H01L51/50
摘要：
A light-emitting device that emits near-infrared light and emits visible light that is less likely to be seen is provided. The light-emitting device contains a light-emitting organic compound and a host material in a light-emitting layer. The maximum peak wavelength in an emission spectrum of the light-emitting device is greater than or equal to 750 nm and less than or equal to 900 nm. A luminance A and a radiance B of the light-emitting device satisfy 0≤A/B≤1.
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