Light-Emitting Device, Light-Emitting Apparatus, Electronic Device, and Lighting Device
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United States of America Patent
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Oct 7, 2021
app pub date -
Jul 25, 2019
filing date -
Aug 3, 2018
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Abstract
Provided is a light-emitting device that can have sufficient device characteristics even with a smaller number of stacked layers in an EL layer and a thicker light-emitting layer than a conventional one by using, as an organic compound used for the EL layer of the light-emitting device, a material that can increase not only a property of carrier transport to the light-emitting layer but also a property of carrier injection from an electrode.
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