Invention Grant
- Patent Title: Organic electroluminescent unit
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Application No.: US15993567Application Date: 2018-05-30
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Publication No.: US10784456B2Publication Date: 2020-09-22
- Inventor: Kazuhiro Yoneda , Tatsuya Matsumi , Noriyuki Matsusue
- Applicant: JOLED INC.
- Applicant Address: JP Tokyo
- Assignee: JOLED INC.
- Current Assignee: JOLED INC.
- Current Assignee Address: JP Tokyo
- Agency: Hauptman Ham, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2eed815f com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1d6779b8
- Main IPC: H01L29/08
- IPC: H01L29/08 ; H01L33/00 ; H01L31/0203 ; H01L21/00 ; H01L51/40 ; H01L51/50
Abstract:
An organic electroluminescent unit is provided with a plurality of organic electroluminescent elements. At least one of the organic electroluminescent elements includes, in order, a first electrode, a hole transport layer, a light-emitting layer, an electron transport layer, and a second electrode. The hole transport layer, the light-emitting layer, and the electron transport layer satisfy the following expressions: ΔEg(T1)≥0 eV ΔEg(T1)=ETa+ETb−2×ETEML where ETa represents a T1 level of the hole transport layer, ETb represents a T1 level of the electron transport layer, and ETEML represents a T1 level of the light-emitting layer.
Public/Granted literature
- US20180351124A1 ORGANIC ELECTROLUMINESCENT UNIT Public/Granted day:2018-12-06
Information query
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