ORGANIC ELECTROLUMINESCENT ELEMENT, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, AND LIGTH EMITTING DEVICE, DISPLAY DEVICE AND LIGHTING DEVICE EACH USING ORGANIC ELECTROLUMINESCENT ELEMENT
申请人:Kitamura Tetsu
公开号:US20140203252A1
公开(公告)日:2014-07-24
An organic electroluminescent element which has a substrate, a pair of electrodes disposed on this substrate and composed of an anode and a cathode, and at least one organic layer disposed between these electrodes and including a light-emitting layer, and in which a compound expressed by General Formula 1-1 is contained in at least one layer of the aforementioned light-emitting layer(s) exhibits high luminous efficiency, excellent blue color purity, and little change in chromaticity accompanying drive deterioration. (R
1
to R
10
[each] represent a hydrogen atom or a substituent, and at least one of R
1
to R
10
is a substituent expressed by General Formula 1-2; however, a pyrene skeleton is never contained in R
1
to R
10
; the asterisk indicates the bonding position with a pyrene ring; X
1
to X
5
[each] represent a carbon atom or a nitrogen atom, and at least one of X
1
to X
5
is a nitrogen atom; R
11
to R
15
[each] represent a hydrogen atom or a substituent, and at least one of R
11
to R
15
is an alkyl group or a silyl group; however, if X
1
to X
5
represent nitrogen atoms, there is no R
11
to R
15
bonded on these nitrogen atoms.)