Invention Grant
- Patent Title: Light-emitting element, light-emitting device, display device, electronic appliance, and lighting device
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Application No.: US17733025Application Date: 2022-04-29
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Publication No.: US11937439B2Publication Date: 2024-03-19
- Inventor: Satoshi Seo , Hiromi Seo , Tatsuyoshi Takahashi , Takahiro Ishisone
- Applicant: Semiconductor Energy Laboratory Co., Ltd.
- Applicant Address: JP Kanagawa-ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP
- Agency: Husch Blackwell LLP
- Priority: JP 12173027 2012.08.03
- Main IPC: H01L51/50
- IPC: H01L51/50 ; H10K50/11 ; H10K50/13 ; H10K50/81 ; H10K50/82 ; H10K85/30 ; H10K85/60 ; H10K101/00 ; H10K101/10
Abstract:
A multicolor light-emitting element using fluorescence and phosphorescence, which has a small number of manufacturing steps owing to a relatively small number of layers to be formed and is advantageous for practical application can be provided. In addition, a multicolor light-emitting element using fluorescence and phosphorescence, which has favorable emission efficiency is provided. A light-emitting element which includes a light-emitting layer having a stacked-layer structure of a first light-emitting layer exhibiting light emission from a first exciplex and a second light-emitting layer exhibiting phosphorescence is provided.
Public/Granted literature
- US20220271248A1 Light-Emitting Element, Light-Emitting Device, Display Device, Electronic Appliance, And Lighting Device Public/Granted day:2022-08-25
Information query
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