FUSED POLYCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE USING THE COMPOUND
申请人:Ohrui Hiroki
公开号:US20120306727A1
公开(公告)日:2012-12-06
Provided are a fused polycyclic compound suitable for use mainly as a component for a blue-light-emitting device, and an organic light-emitting device using the compound. The fused polycyclic compound is represented by the general formulae (1), (2), (8) and (9).
ORGANIC COMPOUND AND ORGANIC LIGHT-EMITTING ELEMENT
申请人:CANON KABUSHIKI KAISHA
公开号:US20210139417A1
公开(公告)日:2021-05-13
An organic compound represented by formula [1].
In the formula rings Q represented by formula [1-1] are each independently present at positions *1 and *2 such that positions * of the rings Q correspond to the positions *1 and *2. The rings Q may be the same or different. R
4
and R
5
represent groups each independently selected from the group consisting of a hydrogen atom and a substituted or unsubstituted aryl group. The rings Q are aromatic hydrocarbons. R
1
to R
3
represent groups each independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, and a cyano group. At least one of R
1
to R
3
represents a cyano group.
One embodiment of this invention has a first electrode, a first light emitting layer, and a second electrode, in which the first light emitting layer has a first host material and a first dopant material, a lowest triplet excitation energy of the first host material is higher than a lowest triplet excitation energy of the first dopant material, and, when a weight of the first light emitting layer is set to 100 wt %, a concentration of the first dopant material is 0.3 wt % or less.
ORGANIC ELECTROLUMINESCENCE DEVICE AND ELECTRONIC DEVICE
申请人:IDEMITSU KOSAN CO., LTD.
公开号:US20190245152A1
公开(公告)日:2019-08-08
An organic electroluminescence device includes an anode, an emitting layer, and a cathode. The emitting layer contains a first compound, a second compound, and a third compound, the first compound being a fluorescent compound, the second compound being a delayed fluorescent compound, the third compound being a compound represented by a formula (3). A singlet energy S
1
(M1) of the first compound, a singlet energy S
1
(M2) of the second compound, and a singlet energy S
1
(M3) of the third compound satisfy a relationship of a Numerical Formula 1. In the formula (3), X
1
to X
14
each independently represent a nitrogen atom or CR
80
. XA is NR
95
, a sulfur atom or an oxygen atom.
ORGANIC ELECTROLUMINESCENCE DEVICE AND ELECTRONIC APPLIANCE
申请人:IDEMITSU KOSAN CO.,LTD.
公开号:US20210028365A1
公开(公告)日:2021-01-28
An organic electroluminescence device comprising: a cathode; an anode; and an organic layer between the cathode and the anode, wherein the organic layer comprises a compound represented by the following formula (1) and a compound represented by the following formula (11).