申请人:Takaku Koji
公开号:US20140299851A1
公开(公告)日:2014-10-09
An organic electroluminescence element that uses a compound expressed by the following general formula has low inter-molecular interaction and high orientation during vapor deposition, and by using compounds that are resistant to aggregation, luminous efficiency is high, and there is little change in chromaticity accompanying drive deterioration (either V
1
or W
1
and either V
2
or W
2
form rings, the rings formed by V
1
and V
2
are six-membered rings, and the rings formed by W
1
and W
2
are five-membered rings; A
2
to A
4
and A
6
to A
8
represent CR
Z
or N, and R
Z
represents a hydrogen atom or a substituent; and R
2
, R
3
, R
7
, and R
8
represent a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, a fluorine atom, a hydrogen atom [sic], or a deuterium atom.).