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1. JP2017017037 - LIGHT EMITTING DEVICE

Office Japan
Application Number 2016183091
Application Date 20.09.2016
Publication Number 2017017037
Publication Date 19.01.2017
Grant Number 6584377
Grant Date 13.09.2019
Publication Kind B2
IPC
H05B 33/12
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
12Light sources with substantially two-dimensional radiating surfaces
H01L 51/50
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)
H05B 33/02
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
02Details
CPC
H01L 51/0052
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
0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
005Macromolecular systems with low molecular weight, e.g. cyanine dyes, coumarine dyes, tetrathiafulvalene
0052Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
H01L 51/006
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
0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
005Macromolecular systems with low molecular weight, e.g. cyanine dyes, coumarine dyes, tetrathiafulvalene
0059Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
006comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
H01L 51/0062
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
0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
005Macromolecular systems with low molecular weight, e.g. cyanine dyes, coumarine dyes, tetrathiafulvalene
0062aromatic compounds comprising a hetero atom, e.g.: N,P,S
H01L 51/0067
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
0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
005Macromolecular systems with low molecular weight, e.g. cyanine dyes, coumarine dyes, tetrathiafulvalene
0062aromatic compounds comprising a hetero atom, e.g.: N,P,S
0067comprising only nitrogen as heteroatom
H01L 51/0071
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
0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
005Macromolecular systems with low molecular weight, e.g. cyanine dyes, coumarine dyes, tetrathiafulvalene
0062aromatic compounds comprising a hetero atom, e.g.: N,P,S
0071Polycyclic condensed heteroaromatic hydrocarbons
H01L 51/0081
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
0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
0077Coordination compounds, e.g. porphyrin
0079Metal complexes comprising a IIIB-metal (B, Al, Ga, In or TI), e.g. Tris (8-hydroxyquinoline) gallium (Gaq3)
0081comprising aluminium, e.g. Alq3
Applicants SEMICONDUCTOR ENERGY LAB CO LTD
株式会社半導体エネルギー研究所
Inventors SUZUKI TSUNENORI
鈴木 恒徳
SEO TETSUSHI
瀬尾 哲史
Priority Data 2006155159 02.06.2006 JP
Title
(EN) LIGHT EMITTING DEVICE
(JA) 発光装置
Abstract
(EN)

PROBLEM TO BE SOLVED: To provide a light emitting element the life of which is long, and also to provide a light emitting device and an electronic apparatus the lives of which are long.

SOLUTION: The light emitting element is provided. The element has an electron transport layer 113 and a positive hole transport layer 112 between a first electrode 102 and a second electrode 104, and has a first layer 121 and a second layer 122 between the electron transport layer and the positive hole transport layer. A first layer has a first organic compound and a second organic compound, and a second layer has a third organic compound and a fourth organic compound. The first layer is provided on the first electrode side of the second layer. The second organic compound has an electron transport property, the third organic compound has an electron trap property, and the fourth organic compound has an electron transport property. The respective light emission colors of the first and third organic compounds fall in the same color group. Light emission can be obtained from the first organic compound by applying a voltage to the first electrode and the second electrode such that the potential of the first electrode is higher than that of the second electrode.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2017,JPO&INPIT

(JA)

【課題】寿命の長い発光素子を提供する。また、寿命の長い発光装置および電子機器を提供する。
【解決手段】第1の電極102と第2の電極104の間に、電子輸送層113と正孔輸送層112を有し、電子輸送層と正孔輸送層との間に、第1の層121と第2の層122を有し、第1の層は、第1の有機化合物と、第2の有機化合物とを有し、第2の層は、第3の有機化合物と、第4の有機化合物とを有し、第1の層は、第2の層の第1の電極側に設けられており、第2の有機化合物は電子輸送性を有し、第3の有機化合物は電子トラップ性を有し、第4の有機化合物は電子輸送性を有し、第1の有機化合物の発光色と第3の有機化合物の発光色は、同じ色系統であり、第1の電極の方が第2の電極よりも電位が高くなるように、第1の電極と第2の電極とに電圧を印加することにより、第1の有機化合物からの発光が得られる発光素子を提供する。
【選択図】図1

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