ORGANIC LIGHT EMITTING DEVICE AND ORGANIC LIGHT EMITTING DISPLAY HAVING THE SAME
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United States of America Patent
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Issued Date -
Apr 9, 2015
app pub date -
Jun 25, 2014
filing date -
Oct 4, 2013
priority date (Note) -
Abandoned
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Abstract
Disclosed is an organic light emitting device including a first electrode, a second electrode, and an organic laminate formed between the first and second electrodes. The organic laminate includes, a multilayer-light emitting structure that includes two or more light emitting layers emitting light of different colors and a charge transport control layer formed at boundaries between the two or more light emitting layers and controlling the amount of charges transported between the two or more light emitting layer. A first light emitting layer of the two or more light emitting layers is between a hole transport layer and the charge transport control layer and formed of a mixture including a first dopant and a host of a hole transport material. Both a hole transport layer and the charge transport control layer are formed of the same material as the host of the first light emitting layer.
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