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1. EP3905360 - PREPARATION METHOD FOR QUANTUM DOT LIGHT EMITTING DIODE

Office
European Patent Office
Application Number 19903010
Application Date 17.09.2019
Publication Number 3905360
Publication Date 03.11.2021
Publication Kind A1
IPC
H01L 51/54
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
CPC
H01L 51/0005
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
0001Processes specially adapted for the manufacture or treatment of devices or of parts thereof
0002Deposition of organic semiconductor materials on a substrate
0003using liquid deposition, e.g. spin coating
0004using printing techniques, e.g. ink-jet printing, screen printing
0005ink-jet printing
H01L 51/0029
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
0001Processes specially adapted for the manufacture or treatment of devices or of parts thereof
0029Special provisions for controlling the atmosphere during processing
H01L 51/502
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]
5012Electroluminescent [EL] layer
502comprising active inorganic nanostructures, e.g. luminescent quantum dots
Applicants TCL TECH GROUP CORP
Inventors ZHANG JIE
XIANG CHAOYU
Designated States
Title
(DE) VERFAHREN ZUR HERSTELLUNG EINER QUANTENPUNKT-LEUCHTDIODE
(EN) PREPARATION METHOD FOR QUANTUM DOT LIGHT EMITTING DIODE
(FR) PROCÉDÉ DE PRÉPARATION D'UNE DIODE ÉLECTROLUMINESCENTE À POINTS QUANTIQUES
Abstract
(EN) The present application discloses a method for preparing quantum dots light-emitting diode, including the following step: providing a base plate, placing the base plate into an inert atmosphere containing active gas, and printing quantum dots ink on a surface of the base plate to prepare a quantum dots light-emitting layer. The method for preparing the quantum dots light-emitting diode provided in the present application changes the film-forming atmosphere of inkjet printing, and prepares the quantum dots light-emitting layer in the inert atmosphere containing active gas, which can improve the device efficiency of the quantum dots light-emitting diode while ensuring the printability of quantum dots ink.
(FR) L'invention concerne un procédé de préparation d'une diode électroluminescente à points quantiques, qui comprend les étapes suivantes : fournir un substrat, placer le substrat dans une atmosphère inerte contenant un gaz actif, et imprimer une encre à points quantiques sur la surface du substrat pour préparer une couche électroluminescente à points quantiques (S01). Le procédé de préparation d'une diode électroluminescente à points quantiques modifie l'atmosphère filmogène d'impression à jet d'encre, et la préparation d'une couche électroluminescente à points quantiques dans une atmosphère inerte contenant un gaz actif permet d'améliorer l'efficacité d'un dispositif à diode électroluminescente à points quantiques tout en assurant l'aptitude à l'impression de l'encre à points quantiques.
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US17419694This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.