ORGANIC ELECTRO-LUMINESCENT DEVICE

PURPOSE: An organic electroluminescent device is provided to improve the luminous efficiency and lifetime of a first light emitting layer by forming the first light emitting layer with a blue fluorescent material with a structure of two hosts and one dopant. CONSTITUTION: A first electrode (147) is...

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Bibliographic Details
Main Authors SUNG, CHANG JE, HAN, MI YOUNG, KIM, SHIN HAN, KAM, YOUN SEOK
Format Patent
LanguageEnglish
Korean
Published 05.07.2013
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:PURPOSE: An organic electroluminescent device is provided to improve the luminous efficiency and lifetime of a first light emitting layer by forming the first light emitting layer with a blue fluorescent material with a structure of two hosts and one dopant. CONSTITUTION: A first electrode (147) is formed on the upper side of a first substrate. A first stack includes a first hole transport layer (150), a first light emitting layer (151), and a first electron transport layer (152). The first light emitting layer is composed of a first host (151a), a second host (151b), and a dopant (151c). A second stack is composed of a second hole transport layer, a second light emitting layer, and a second electron transport layer. A second electrode (158) is formed on the upper side of the second stack. [Reference numerals] (AA) Hole; (BB) Electron
Bibliography:Application Number: KR20110137962