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1. WO2020089999 - LIGHT-EMITTING ELEMENT, METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT

Publication Number WO/2020/089999
Publication Date 07.05.2020
International Application No. PCT/JP2018/040289
International Filing Date 30.10.2018
IPC
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)
H05B 33/10 2006.01
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
H05B 33/12 2006.01
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
H05B 33/14 2006.01
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
14characterised by the chemical or physical composition or the arrangement of the electroluminescent material
H05B 33/26 2006.01
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
26characterised by the composition or arrangement of the conductive material used as an electrode
Applicants
  • シャープ株式会社 SHARP KABUSHIKI KAISHA [JP]/[JP]
Inventors
  • 榊原 裕介 SAKAKIBARA Yusuke
  • 両輪 達也 RYOHWA Tatsuya
Agents
  • 井上 知哉 INOUE Tomoya
  • 家根田 剛士 YANEDA Takeshi
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) LIGHT-EMITTING ELEMENT, METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT
(FR) ÉLÉMENT ÉLECTROLUMINESCENT ET PROCÉDÉ DE FABRICATION D'ÉLÉMENT ÉLECTROLUMINESCENT
(JA) 発光素子、発光素子の製造方法
Abstract
(EN)
Provided is a light-emitting element configured for highly efficient light emission for each of multiple colors, the light-emitting element comprising: a negative electrode; a positive electrode; a light-emitting layer formed between the negative electrode and the positive electrode, the light-emitting layer including a plurality of light-emitting regions each emitting light of mutually different wavelengths, and an electron transport layer formed between the negative electrode and the light-emitting layer, the electron transport layer including regions corresponding to the light-emitting regions. The electron transport layer includes a Zn1-XMgXO film (where X satisfies O ≤ X < 1). The shorter the wavelength of light emitted from each of the corresponding light-emitting regions, the greater the Mg composition ratio X becomes and the smaller the thickness of the film becomes.
(FR)
L'invention concerne un élément électroluminescent configuré pour une émission de lumière hautement efficace pour chaque couleur de multiples couleurs, l'élément électroluminescent comprenant : une électrode négative ; une électrode positive ; une couche électroluminescente formée entre l'électrode négative et l'électrode positive, la couche électroluminescente comprenant une pluralité de régions électroluminescentes émettant chacune de la lumière de longueurs d'onde mutuellement différentes, et une couche de transport d'électrons formée entre l'électrode négative et la couche électroluminescente, la couche de transport d'électrons comprenant des régions correspondant aux régions électroluminescentes. La couche de transport d'électrons comprend un film de Zn1-XMgXO (où X satisfait O ≤ X < 1). Plus la longueur d'onde de la lumière émise à partir de chacune des régions électroluminescentes correspondantes est courte, plus le rapport X de composition de Mg augmente et plus l'épaisseur du film diminue.
(JA)
各色を高効率で発光させることを目的として、陰極と、陽極と、前記陰極と前記陽極との間に形成され、それぞれ異なる波長の光を発する複数の発光領域を含む発光層と、前記陰極と前記発光層との間に形成され、前記各発光領域と各々対応する領域を含む電子輸送層と、を有し、前記電子輸送層は、Zn1-XMgO膜(但し、Xは0≦X<1である。)を含み、対応する前記各発光領域から発する光の波長が短い領域ほど、Mgの組成比Xが大きくなり、かつ、膜厚が薄くなる発光素子を提供する。
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