Organic light emitting device having stacked electron transport layers

An organic light emitting device including: a first electrode, a hole injection layer on the first electrode, a hole transport layer on the hole injection layer, an organic light emitting layer on the hole transport layer, a first electron transport layer on the organic light emitting layer, a secon...

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Bibliographic Details
Main Authors LEE YOON-KYOO, KIM MYUNG-HWAN, KIM JAE-BOK, KIM JI-YOUNG, LEE SUN-HYE, SONG WON-JUN, SHIN HYE-LIM, SHIM TAE-KYU
Format Patent
LanguageEnglish
Published 10.11.2015
Subjects
ELECTRICITY
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Summary:An organic light emitting device including: a first electrode, a hole injection layer on the first electrode, a hole transport layer on the hole injection layer, an organic light emitting layer on the hole transport layer, a first electron transport layer on the organic light emitting layer, a second electron transport layer on the organic light emitting layer, an electron injection layer on the second electron transport layer and a second electrode on the electron injection layer, where the first electron transport layer includes a first material for improving a thermal stability, a second material for improving a luminous efficiency and a third material for reducing a driving voltage, and the second electron transport layer is laminated with the first electron transport layer, and the second electrode faces the first electrode.
Bibliography:Application Number: US201414334623