Organic Electric-Field Light-Emitting Element, Light-Emitting Material For Organic Electric-Field Light-Emitting Element, And Light-Emitting Device, Display Device, And Illumination Device Using Same Element
申请人:Takada Saki
公开号:US20140159024A1
公开(公告)日:2014-06-12
An organic electroluminescent element that uses a compound expressed by the following general formula emits dark blue light and exhibits little change in chromaticity during brightness modulation. (n1 is an integer from 0 to 8; the R
1
[groups] are each independently a substituent substituted for a hydrogen atom of the pyrene skeleton; X is CR
a
R
b
(R
a
and R
b
are each independently a hydrogen atom or a substituent), O, S, or SiR
d
R
e
(R
d
and R
e
are each independently a hydrogen atom or a substituent); and A
1
to A
4
represent each independently either N or CR
f
(R
f
represents a hydrogen atom or a substituent, and two adjacent R
f
[groups] may jointly form a saturated or unsaturated ring, but no more than two rings may be formed jointly by two or more of the R
f
[groups]).)