Title:
ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC EL DISPLAY DEVICE, ORGANIC EL LIGHTING, AND ORGANIC ELECTROLUMINESCENT ELEMENT PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/138822
Kind Code:
A1
Abstract:
The present invention relates to an organic electroluminescent element comprising a positive electrode, a negative electrode, a light-emitting layer, and a hole injection layer, wherein: the light-emitting layer is provided between the positive electrode and the negative electrode; the hole injection layer is provided between the positive electrode and the light-emitting layer; the light-emitting layer contains a polycyclic heterocyclic compound represented by formula (1); and the hole injection layer contains tetraarylborate ions. (In formula (1), the ring a, the ring b, the ring c, and Y are as defined in the description.)
Inventors:
IIDA KOICHIRO (JP)
OKABE KAZUKI (JP)
GOROHMARU HIDEKI (JP)
KOMATSU HIDEJI (JP)
HATTORI SHIGEKI (JP)
NAGAYAMA KAZUHIRO (JP)
OKABE KAZUKI (JP)
GOROHMARU HIDEKI (JP)
KOMATSU HIDEJI (JP)
HATTORI SHIGEKI (JP)
NAGAYAMA KAZUHIRO (JP)
Application Number:
PCT/JP2021/047865
Publication Date:
June 30, 2022
Filing Date:
December 23, 2021
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C07F5/02; C08G73/02; C09K11/06; G09F9/30; H01L27/32; H01L51/50; H05B33/10
Domestic Patent References:
| WO2017164268A1 | 2017-09-28 | |||
| WO2019225985A1 | 2019-11-28 | |||
| WO2019225989A1 | 2019-11-28 | |||
| WO2020040298A1 | 2020-02-27 | |||
| WO2019235452A1 | 2019-12-12 | |||
| WO2020085829A1 | 2020-04-30 |
Foreign References:
| JP2019057484A | 2019-04-11 | |||
| JP2015151464A | 2015-08-24 | |||
| JP2019533721A | 2019-11-21 | |||
| JP2020510665A | 2020-04-09 | |||
| JP2020167393A | 2020-10-08 | |||
| JP2020512303A | 2020-04-23 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
Download PDF: