Invention Grant
- Patent Title: Organic electroluminescent element
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Application No.: US16244454Application Date: 2019-01-10
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Publication No.: US11139438B2Publication Date: 2021-10-05
- Inventor: Takuji Hatakeyama , Yuko Yamaga , Daisuke Baba , Kazushi Shiren
- Applicant: Kwansei Gakuin Educational Foundation , SK Materials JNC Co., Ltd.
- Applicant Address: JP Nishinomiya; KR Gyeonggi-do
- Assignee: Kwansei Gakuin Educational Foundation,SK Materials JNC Co., Ltd.
- Current Assignee: Kwansei Gakuin Educational Foundation,SK Materials JNC Co., Ltd.
- Current Assignee Address: JP Nishinomiya; KR Gyeonggi-do
- Agency: Foley & Lardner LLP
- Priority: JPJP2018-009620 20180124,JPJP2018-194216 20181015
- Main IPC: H01L51/00
- IPC: H01L51/00 ; H01L51/52 ; H01L51/50 ; C07D209/82 ; C07D333/52 ; C07D307/78

Abstract:
By manufacturing an organic EL element using a material for a light emitting layer including a pyrene-based compound represented by the following formula (2) as a host material and a polycyclic aromatic compound in which a plurality of aromatic rings is linked with a boron atom and a nitrogen atom or an oxygen atom as a dopant material, an organic EL element having, for example, excellent light emission efficiency is provided. In the above formula (2), at least one hydrogen atom in a pyrene moiety may be substituted by an aryl having 6 to 10 carbon atoms or the like. Ar represents an aryl having 14 to 40 carbon atoms or a heteroaryl having 12 to 40 carbon atoms. These groups may be substituted by an aryl having 6 to 10 carbon atoms or the like. s and p each independently represent an integer of 1 or 2. s and p do not simultaneously represent 2. One or more hydrogen atoms in a compound represented by formula (2) may be each independently substituted by a halogen atom, cyano, or a deuterium atom.
Public/Granted literature
- US20190229277A1 ORGANIC ELECTROLUMINESCENT ELEMENT Public/Granted day:2019-07-25
Information query
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