Title:
LIGHT EMITTING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2020/174837
Kind Code:
A1
Abstract:
The present invention provides a light emitting element which has excellent luminous efficiency. A light emitting element which sequentially comprises a negative electrode, a first organic layer that contains a compound having a crosslinkable group and a phosphorescent transition metal complex, a second organic layer that contains a crosslinked body of a compound that is the same as the compound having a crosslinkable group, and a positive electrode in this order, and which is configured such that the ratio of the compound having a crosslinkable group contained in the first organic layer is 2-10% by mass relative to the total mass of the first organic layer. The compound having a crosslinkable group may be a compound which has at least one crosslinkable group that is selected from the group of crosslinkable groups consisting of crosslinkable groups represented by formula (XL-1) to formula (XL-19).
Inventors:
SHIRATORI MIO (JP)
AKINO NOBUHIKO (JP)
FUKUSHIMA DAISUKE (JP)
AKINO NOBUHIKO (JP)
FUKUSHIMA DAISUKE (JP)
Application Number:
PCT/JP2019/049783
Publication Date:
September 03, 2020
Filing Date:
December 19, 2019
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
C07F15/00; C09K11/06; H01L51/50; H05B33/10
Domestic Patent References:
| WO2017061332A1 | 2017-04-13 | |||
| WO2011049226A1 | 2011-04-28 | |||
| WO2015133437A1 | 2015-09-11 | |||
| WO2006121811A1 | 2006-11-16 | |||
| WO2009157430A1 | 2009-12-30 |
Foreign References:
| JPH03110B2 | 1991-01-07 | |||
| JP2018104674A | 2018-07-05 | |||
| JP2011211174A | 2011-10-20 | |||
| JP2016111355A | 2016-06-20 | |||
| JP2011105701A | 2011-06-02 | |||
| JP2004530254A | 2004-09-30 | |||
| JP2008179617A | 2008-08-07 | |||
| JP2007504272A | 2007-03-01 | |||
| JP2013147450A | 2013-08-01 | |||
| JP2014224101A | 2014-12-04 |
Other References:
CHEMICAL REVIEWS (CHEM. REV., vol. 109, 2009, pages 897 - 1091
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 107, 1985, pages 1431 - 1432
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 106, 1984, pages 6647 - 6653
See also references of EP 3932926A4
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 107, 1985, pages 1431 - 1432
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 106, 1984, pages 6647 - 6653
See also references of EP 3932926A4
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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