Invention Application
- Patent Title: LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE
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Application No.: US17760556Application Date: 2019-09-30
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Publication No.: US20220344550A1Publication Date: 2022-10-27
- Inventor: JUN SAKUMA , YASUSHI ASAOKA
- Applicant: SHARP KABUSHIKI KAISHA
- Applicant Address: JP Sakai City, Osaka
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Sakai City, Osaka
- International Application: PCT/JP2019/038622 WO 20190930
- Main IPC: H01L33/50
- IPC: H01L33/50 ; H01L27/15

Abstract:
A light-emitting element includes a first light-emitting layer including a first quantum dot and a second light-emitting layer including a second quantum dot provided between the cathode electrode and an anode electrode in order from the cathode electrode, the first quantum dot has a core-shell structure including a first core and a first shell, the second quantum dot has a core-shell structure including a second core and a second shell, and an energy level at a lower end of a conduction band of the first core is higher than an energy level at a lower end of a conduction band of the second core.
Public/Granted literature
- US12289936B2 Light-emitting element, light-emitting device Public/Granted day:2025-04-29
Information query
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