Processing

Please wait...

Settings

Settings

Goto Application

1. WO2022004709 - ORGANIC ELECTROLUMINESCENT ELEMENT

Publication Number WO/2022/004709
Publication Date 06.01.2022
International Application No. PCT/JP2021/024526
International Filing Date 29.06.2021
IPC
C07D 405/14 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
405Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
14containing three or more hetero rings
C09K 11/06 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
11Luminescent, e.g. electroluminescent, chemiluminescent, materials
06containing organic luminescent materials
C07D 209/86 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
209Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
56Ring systems containing three or more rings
80- or -condensed
82Carbazoles; Hydrogenated carbazoles
86with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
C07D 487/04 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
487Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/-C07D477/183
02in which the condensed system contains two hetero rings
04Ortho-condensed systems
H05B 33/10 2006.1
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
10Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
H01L 51/50 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
Applicants
  • 日鉄ケミカル&マテリアル株式会社 NIPPON STEEL CHEMICAL & MATERIAL CO., LTD. [JP]/[JP]
Inventors
  • 甲斐 孝弘 KAI Takahiro
  • 林 健太郎 HAYASHI Kentaro
  • 小川 淳也 OGAWA Junya
  • 池永 裕士 IKENAGA Yuji
  • 寺田 絢香 TERADA Ayaka
  • 吉田 和成 YOSHIDA Kazunari
  • 北原 いくみ KITAHARA Ikumi
  • 泉 遥 IZUMI Haruka
  • 野口 勝秀 NOGUCHI Katsuhide
  • 川田 敦志 KAWADA Atsushi
Agents
  • 佐々木 一也 SASAKI Kazuya
  • 佐野 英一 SANO Eiichi
  • 原 克己 HARA Katsumi
  • 久本 秀治 HISAMOTO Shuji
Priority Data
2020-11285930.06.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) ORGANIC ELECTROLUMINESCENT ELEMENT
(FR) ÉLÉMENT ÉLECTROLUMINESCENT ORGANIQUE
(JA) 有機電界発光素子
Abstract
(EN) Provided is an organic EL element which has long lifespan properties while having low driving voltage and high power efficiency. This organic EL element includes one or more light emitting layers between a positive electrode and a negative electrode which are opposite each other, wherein at least one light emitting layer contains a light-emitting dopant material and host materials including a first host material, a second host material, and a third host material. The LUMO energy of the first host material is not more than -1.95 eV. The expression The expression LM2≥LM3≥LM1 is satisfied, where LM1, LM2, and LM3 are the LUMO energies of the first host material, the second host material, and the third host material, respectively. Indolocarbazole compounds represented by general formula (1) are suitable as the first host material. Bis-carbazole compounds represented by general formula (2) are suitable as the second host material. Indolocarbazole compounds represented by general formula (5) are suitable as the third host material.
(FR) L'invention concerne un élément électroluminescent organique qui a des propriétés de longue durée de vie tout en ayant une faible tension de commande et un haut rendement énergétique. Cet élément électroluminescent organique comprend une ou plusieurs couches électroluminescentes entre une électrode positive et une électrode négative qui sont opposées l'une à l'autre, au moins une couche électroluminescente contenant un matériau dopant électroluminescent et des matériaux hôtes comprenant un premier matériau hôte, un deuxième matériau hôte et un troisième matériau hôte. L'énergie LUMO du premier matériau hôte n'est pas supérieure à -1,95 eV. L'expression LM2 ≥ LM3 ≥ LM1 est satisfaite, LM1, LM2 et LM3 étant les énergies LUMO du premier matériau hôte, du deuxième matériau hôte et du troisième matériau hôte, respectivement. Les composés d'indolocarbazole représentés par la formule générale (1) sont appropriés en tant que premier matériau hôte. Les composés de bis-carbazole représentés par la formule générale (2) sont appropriés en tant que deuxième matériau hôte. Les composés d'indolocarbazole représentés par la formule générale (5) sont appropriés en tant que troisième matériau hôte.
(JA) 低駆動電圧、高電力効率でありながら、長寿命特性を有する有機EL素子を提供する。この有機EL素子は、対向する陽極と陰極の間に、一つ以上の発光層を含み、少なくとも一つの発光層が、第1ホスト材料、第2ホスト材料、及び第3ホスト材料を含むホスト材料と、発光性ドーパント材料を含有する。第1ホスト材料のLUMOエネルギーは-1.95eV以下であり、第1ホスト材料、第2ホスト材料、及び第3ホスト材料のLUMOエネルギーを、それぞれLM1、LM2及びLM3とするとき、LM2≧LM3≧LM1を満足する。第1ホスト材料としては、一般式(1)で表されるインドロカルバゾール化合物が、第2ホスト材料としては、一般式(2)で表されるビスカルバゾール化合物などが、第3ホスト材料としては、一般式(5)で表されるインドロカルバゾール化合物が適する。
Latest bibliographic data on file with the International Bureau