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1. WO2020191866 - THERMALLY ACTIVATED DELAYED FLUORESCENT MATERIAL AND PREPARATION METHOD THEREFOR, AND ORGANIC LIGHT EMITTING DEVICE

Publication Number WO/2020/191866
Publication Date 01.10.2020
International Application No. PCT/CN2019/086115
International Filing Date 09.05.2019
IPC
C09K 11/06 2006.01
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 219/14 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
219Heterocyclic compounds containing acridine or hydrogenated acridine ring systems
14with hydrocarbon radicals, substituted by nitrogen atoms, attached to the ring nitrogen atom
C07D 265/38 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
265Heterocyclic compounds containing six-membered rings having one nitrogen atom and one oxygen atom as the only ring hetero atoms
281,4-Oxazines; Hydrogenated 1,4-oxazines
34condensed with carbocyclic rings
38-condensed with two six-membered rings
H01L 51/50 2006.01
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)
H01L 51/54 2006.01
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)
54Selection of materials
Applicants
  • 武汉华星光电半导体显示技术有限公司 WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 张曲 ZHANG, Qu
  • 吴凯龙 WU, Kailong
Agents
  • 深圳翼盛智成知识产权事务所(普通合伙) ESSEN PATENT & TRADEMARK AGENCY
Priority Data
201910239775.727.03.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) THERMALLY ACTIVATED DELAYED FLUORESCENT MATERIAL AND PREPARATION METHOD THEREFOR, AND ORGANIC LIGHT EMITTING DEVICE
(FR) MATÉRIAU À FLUORESCENCE RETARDÉE ACTIVÉE THERMIQUEMENT, PROCÉDÉ DE PRÉPARATION CORRESPONDANT ET DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE
(ZH) 热活化延迟荧光材料及其制备方法、有机发光器件
Abstract
(EN)
A thermally activated delayed fluorescent material having a chemical structural formula (A), the R group being a diphenylamine group. An efficient deep blue thermally activated delayed fluorescent material is produced by using tetrastyrene as the nucleus and connecting carbazole, phenoxazine, and other groups, so that the external quantum efficiency of an organic electroluminescence device prepared on the basis of the present material is improved and the efficiency decays slowly, thereby increasing the service life of the organic electroluminescence device.
(FR)
L'invention concerne un matériau à fluorescence retardée activée thermiquement ayant une formule structurale chimique (A), le groupe R étant un groupe diphénylamine. Un matériau à fluorescence retardée activée thermiquement bleu foncé efficace est produit en utilisant du tétrastyrène en tant que noyau et en connectant le carbazole, la phénoxazine et d'autres groupes, de sorte que l'efficacité quantique externe d'un dispositif électroluminescent organique préparé sur la base du présent matériau soit améliorée et que l'efficacité diminue lentement, ce qui permet d'augmenter la durée de vie du dispositif électroluminescent organique.
(ZH)
一种所述热活化延迟荧光材料的化学结构式为 (A), R基团为二苯胺类基团。通过以四苯乙烯为核,连接咔唑、吩噁嗪等基团,从而构建出高效率的深蓝光热活化延迟荧光材料,使得基于该材料制备的有机电致发光器件的外量子效率得到提高且效率衰减缓慢,进而提高有机电致发光器件的使用寿命。
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