ORGANIC LIGHT EMITTING ELEMENT, DISPLAY DEVICE, IMAGE INFORMATION PROCESSING DEVICE, LIGHTING DEVICE, IMAGE FORMING DEVICE, EXPOSURE DEVICE, AND ORGANIC PHOTOELECTRIC CONVERSION ELEMENT
申请人:CANON KABUSHIKI KAISHA
公开号:US20170012215A1
公开(公告)日:2017-01-12
The present disclosure provides an organic light emitting element which has a pair of electrodes and an organic compound layer disposed therebetween and in which the organic compound layer contains an organic compound represented by the following general formula [1],
wherein in the formula [1], Ar
1
and Ar
2
each independently represent an aromatic hydrocarbon group or a heteroaromatic ring group, R
1
to R
4
are each independently selected from a hydrogen atom or a substituent, R
1
and R
2
and R
3
and R
4
each may form a benzene ring, wherein the benzene ring may have at least one substituent.
The present invention relates to phenanthroline compounds and to electroluminescent (EL) devices comprising the phenanthroline compounds. The phenanthroline compounds may function as electron transport layers, as hole blocking layers or as hosts for phosphorescent emitter materials to provide electroluminescent devices with improved efficiency, lifetime, operational stability and better spectral characteristics.
COMPOUND HAVING INDENOACRIDAN RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE
申请人:Hodogaya Chemical Co., Ltd.
公开号:US20150249218A1
公开(公告)日:2015-09-03
An organic compound with excellent characteristics excelling in hole injecting and transporting performance and having an electron-blocking ability, high stability in a thin film state and excellent heat resistance is provided as a material for an organic electroluminescent device of high efficiency and high durability, and the organic electroluminescent device of high luminous efficiency and high durability is provided using this compound. The compound of a general formula (1) having an indenoacridan ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes.
An organic compound represented by formula [1] is provided.
Ring A is a polycyclic aromatic hydrocarbon ring having a fluoranthene skeleton and having 16 to 60 carbon atoms and optionally has, as a substituent, a substituted or unsubstituted alkyl group or the like. Rings B
1
and B
2
are aromatic hydrocarbon rings having 6 to 18 carbon atoms and each have two or more electron withdrawing groups. Q
1
and Q
2
respectively represent one of the electron withdrawing groups of the ring B
1
and one of the electron withdrawing groups of the ring B
2
, and are respectively located at an ortho position of the ring B
1
and at an ortho position of the ring B
2
with respect to the ring A.
IRIDIUM COMPLEX-CONTAINING COMPOSITION, ORGANIC LIGHT EMITTING DEVICE HAVING THE SAME, DISPLAY APPARATUS, IMAGING APPARATUS, ELECTRONIC EQUIPMENT, LIGHTING APPARATUS, AND MOVING BODY
申请人:CANON KABUSHIKI KAISHA
公开号:US20210317152A1
公开(公告)日:2021-10-14
A composition that contains an iridium complex and an isomer of the iridium complex, in which the amount of the isomer of the iridium complex is decreased. The iridium complex is a homo-N-trans (HNT) iridium complex having an iridium atom, and a first ligand, a second ligand, and a third ligand that are bonded to the iridium atom. The isomer has an iridium atom, a fourth ligand, a fifth ligand, and the third ligand. The composition ratio of the isomer relative to a total of the iridium complex and the isomer is 1.0% or less.