Organic light emitting device
AssigneeLG Chem, Ltd.
InventorsMinseung CHUN, Seong So KIM, Jae Seung HA
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Abstract
Provided is an organic light emitting device having low driving voltage, high luminous efficiency, and long lifetime characteristics. The organic light emitting device includes an anode, a cathode that is provided opposite to the anode, a light emitting layer that is provided between the anode and the cathode, and an electron transport layer that is provided between the light emitting layer and the cathode, where an electron mobility of a material forming the electron transport layer is 10−5 cm2/Vs or less.
Claims11
An organic light emitting device comprising:
- an anode;
- a cathode that is provided opposite to the anode;
- a light emitting layer that is provided between the anode and the cathode;
- and an electron transport layer that is provided between the light emitting layer and the cathode,
- wherein an electron mobility of a material constituting the electron transport layer is 10−5 cm2/Vs or less.
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A method for manufacturing an organic light emitting device comprising the steps of:
- 1) forming a light emitting layer on an anode by a solution process;
- 2) forming an electron transport layer on the light emitting layer by a sublimation process;
- and
- 3) depositing a cathode on the electron transport layer,
- wherein an electron mobility of the material constituting the electron transport is 10−5 s cm2/Vs or less.
Dependencies are inferred from the claim text.