Invention Grant
- Patent Title: Light-emitting element, display module, lighting module, light-emitting device, display device, electronic device, and lighting device
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Application No.: US15718498Application Date: 2017-09-28
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Publication No.: US09966574B2Publication Date: 2018-05-08
- Inventor: Tsunenori Suzuki , Shogo Uesaka , Ryohei Yamaoka , Satoshi Seo
- Applicant: Semiconductor Energy Laboratory Co., Ltd.
- Applicant Address: JP
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP
- Agency: Husch Blackwell LLP
- Priority: JP2013-166867 20130809
- Main IPC: H01L29/08
- IPC: H01L29/08 ; H01L35/24 ; H01L51/00 ; H01L27/15 ; H01L29/26 ; H01L31/12 ; H01L33/00 ; H01L51/52 ; H01L27/32 ; H01L51/50
Abstract:
A tandem light-emitting element in which generation of crosstalk can be suppressed even when the element is applied to a high-definition display is provided. In the tandem light-emitting element, a layer in contact the anode side of an intermediate layer contains 2,9-bis(naphthalen-2-yl)-4,7-diphenyl-1,10-phenanthroline (abbreviation: NBPhen).
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