Invention Grant
- Patent Title: Organic electroluminescent element, display device, lighting device, π-conjugated compound, and light-emitting thin film
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Application No.: US16582774Application Date: 2019-09-25
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Publication No.: US11329234B2Publication Date: 2022-05-10
- Inventor: Yasuo Miyata , Taketo Namikawa , Hiroshi Kita
- Applicant: Konica Minolta, Inc.
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta, Inc.
- Current Assignee: Konica Minolta, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Lucas & Mercanti, LLP
- Priority: JPJP2014-155852 20140731
- Main IPC: H01L51/00
- IPC: H01L51/00 ; C07D413/14 ; C07D219/02 ; C07D241/48 ; C07F5/02 ; C07F7/10 ; C07D401/10 ; C07D265/38 ; C07D487/04 ; C07D403/12 ; C07D241/46 ; C07D409/10 ; C07D417/10 ; H05B33/20 ; C07D403/10 ; C07D279/22 ; C07D209/86 ; C07D307/91 ; C07D333/76 ; H01L51/50 ; C09K11/06 ; C07D401/12 ; C07F7/08

Abstract:
An object of the present invention is to provide an organic electroluminescent element containing an organic layer interposed between an anode and a cathode, the organic layer containing at least one light emitting layer, wherein the at least one light emitting layer contains a π-conjugated compound having an electron donor portion and an electron acceptor portion in the molecule; the π-conjugated compound has a direction vector from an atom having a HOMO orbital in the electron donor portion to an electron cloud of the HOMO orbital, and a direction vector from an atom having a LUMO orbital in the electron acceptor portion to an electron cloud of the LUMO orbital, and the two direction vectors form an angle θ in the range of 90 to 180 degrees; and the π-conjugated compound has a plurality of the electron donor portions or a plurality of the electron acceptor portions.
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Information query
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