ORGANIC LIGHT EMITTING DEVICE
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United States of America Patent
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Issued Date -
Jan 18, 2024
app pub date -
Sep 18, 2023
filing date -
Nov 16, 2016
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Abstract
Provided is an organic light emitting device having improved driving voltage, efficiency and lifetime, the organic light emitting device comprises: a cathode; an anode; and at least one light emitting layer interposed between the cathode and the anode, wherein the light emitting layer includes a first host compound of the following Chemical Formula 1-1 or Chemical Formula 1-2 and a second host compound of the following Chemical Formula 2:
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