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1. US20180076409 - Light emitting device

Office United States of America
Application Number 15558173
Application Date 16.03.2015
Publication Number 20180076409
Publication Date 15.03.2018
Grant Number 09991461
Grant Date 05.06.2018
Publication Kind B2
IPC
H01L 29/08
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
29Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having at least one potential-jump barrier or surface barrier; Capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof
02Semiconductor bodies
06characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
08with semiconductor regions connected to an electrode carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
H01L 35/24
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
35Thermoelectric devices comprising a junction of dissimilar materials, i.e. exhibiting Seebeck or Peltier effect with or without other thermoelectric effects or thermomagnetic effects; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
12Selection of the material for the legs of the junction
24using organic compositions
H01L 51/00
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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
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)
H01L 51/56
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)
56Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
CPC
H01L 2051/0063
H01L 2251/558
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01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
2251Indexing scheme relating to organic semiconductor devices covered by group H01L51/00
50Organic light emitting devices
55characterised by parameters
558Thickness
H01L 51/001
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01BASIC ELECTRIC ELEMENTS
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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
0001Processes specially adapted for the manufacture or treatment of devices or of parts thereof
0002Deposition of organic semiconductor materials on a substrate
0008using physical deposition, e.g. sublimation, sputtering
001Vacuum deposition
H01L 51/0065
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
0065comprising only oxygen as heteroatom
H01L 51/007
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
0069comprising two or more different heteroatoms per ring, e.g. S and N
007Oxadiazole compounds
H01L 51/0072
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
0072comprising only nitrogen in the heteroaromatic polycondensed ringsystem, e.g. phenanthroline, carbazole
Applicants PIONEER CORPORATION
Inventors Akihiro Tanaka
Agents Procopio, Cory, Hargreaves & Savitch LLP
Title
(EN) Light emitting device
Abstract
(EN)

Multiple organic layers (120) are located between a first electrode (110) and a second electrode (130), each organic layer including a light emitting layer. A charge generation layer (200) is located between mutually adjacent organic layers (120). In other words, the multiple organic layers (120) are mutually laminated and the charge generation layer (200) is located between the multiple organic layers (120). The charge generation layer (200) includes a first layer, a second layer, and a third layer. The first layer contains an electron transport material and the second layer contains a metal and a hole injection material. The third layer is formed using a hole transport material. The charge generation layer (200) contains an electron injection material for improving electron injection properties of the first layer, the charge generation layer provided on the first layer side than the second layer.

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