ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE, ILLUMINATING DEVICE AND CONDENSED POLYCYCLIC HETEROCYCLIC COMPOUND
申请人:Sugita Shuichi
公开号:US20120085997A1
公开(公告)日:2012-04-12
Disclosed is an organic electroluminescent element which is characterized in that constituent layers including at least a phosphorescent light-emitting layer are provided between a pair of electrodes, and at least one of the constituent layers contains a compound represented by general formula (1). (In the formula, A
1
, A
2
and A
3
each represents a substituent; n1 and n2 each represents an integer of 0-3; X
1
and X
2
each represents an oxygen atom, a sulfur atom, an alkylene group, an imino group, a carbonyl group, a sulfoxide group or a sulfonyl group, or alternatively X
2
represents a bonding hand; and Z
1
, Z
2
, Z
3
and Z
4
each represents an optionally substituted aromatic heterocyclic ring or an aromatic hydrocarbon ring, provided that all of the Z
1
, Z
2
, Z
3
and Z
4
are not aromatic hydrocarbon rings at the same time.)