ORGANIC ELECTROLUMINESCENT ELEMENT, LIGHT-EMITTING MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, AND LIGHT-EMITTING DEVICE, DISPLAY DEVICE, AND ILLUMINATION DEVICE USING SAID ELEMENT
申请人:Takada Saki
公开号:US20140239280A1
公开(公告)日:2014-08-28
An organic electroluminescent element using a compound represented by the following general formula emits dark blue light and has a small change in the chromaticity during luminance modulation:
wherein each of R
1
to R
8
represents a hydrogen atom or a substituent; A
1
to A
4
represent CR
31
or N; L and X each independently represent any one of CR
32
R
33
, NR
34
, O, S, and SiR
35
R
36
; and each of R
31
to R
36
represents a hydrogen atom or a substituent.