ORGANIC ELECTROLUMINESCENT DEVICE
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United States of America Patent
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Oct 27, 2022
app pub date -
Aug 27, 2020
filing date -
Aug 27, 2020
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Abstract
An organic electroluminescent device is disclosed. The organic electroluminescent device includes a light-emitting layer that contains a plurality of hosts and dopants, where one of the plurality of hosts includes the same material as in an electron transport auxiliary layer in an electron transport region, whereby the organic electroluminescent device simultaneously exhibits effects such as low driving voltage, high luminous efficiency, and a long lifespan.
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