- Patent Title: EL element and method for manufacturing EL element with a light-emitting layer including an ionic liquid, a phosphorescent material, and a fluorescent material
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Application No.: US16082995Application Date: 2017-03-16
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Publication No.: US10693096B2Publication Date: 2020-06-23
- Inventor: Asae Ito , Manabu Niboshi , Yuto Tsukamoto , Shinichi Kawato
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Sakai
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Sakai
- Agency: Keating & Bennett, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@43ed87de
- International Application: PCT/JP2017/010704 WO 20170316
- International Announcement: WO2017/159797 WO 20170921
- Main IPC: H01L51/50
- IPC: H01L51/50 ; H01L51/52 ; H01L27/32 ; H01L51/00
Abstract:
Provided is an EL element utilizing upconversion light emission involving highly efficient triplet-triplet annihilation. A blue-light-emitting layer includes an ionic liquid, a red phosphorescent material, and a blue fluorescent material. The blue fluorescent material and the red phosphorescent material are homogeneously dispersed in a liquid film of the ionic liquid.
Public/Granted literature
- US20190081268A1 EL ELEMENT AND METHOD FOR MANUFACTURING EL ELEMENT Public/Granted day:2019-03-14
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