The present invention relates to compounds of the formula (1) and formula (2) which are suitable for use in electronic devices, in particular organic electroluminescent devices.
本发明涉及适用于电子设备中的化合物,尤其是有机电致发光设备的公式(1)和公式(2)化合物。
Organic electroluminescent element
申请人:Idemitsu Kosan Co., Ltd.
公开号:US10186665B2
公开(公告)日:2019-01-22
An organic electroluminescence device includes an anode, a cathode and an emitting layer, in which the emitting layer includes a first compound and a second compound and each of the first compound and the second compound is a compound emitting thermally activated delayed fluorescence.
An organic electroluminescence device includes an anode, a cathode and an emitting layer, in which the emitting layer includes a first compound and a second compound and each of the first compound and the second compound is a compound emitting thermally activated delayed fluorescence.
LIGHT-EMITTING DEVICE
申请人:IDEMITSU KOSAN CO., LTD.
公开号:US20160028025A1
公开(公告)日:2016-01-28
A light-emitting apparatus includes an organic electroluminescence device, a first color conversion portion that transmits a first color light, and a second color conversion portion that transmits a second color light. The organic electroluminescence device includes an anode, a cathode, and one or more organic layers interposed between the anode and the cathode. At least one of the organic layer(s) is an emitting layer including a host material and a dopant material that emits light including the first color light and the second color light. A difference ΔST(D) between singlet energy EgS(D) of the dopant material and an energy gap Eg
77K
(D) at 77K of the dopant material satisfies Numerical Formula 1 below,
Δ
ST
(
D
)=
EgS
(
D
)−
Eg
77
K
(
D
)<0.3 (eV) (Numerical Formula 1)