LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
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United States of America Patent
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Issued Date -
May 23, 2024
app pub date -
Aug 24, 2023
filing date -
Oct 31, 2022
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Abstract
A light emitting device includes a first electrode, a hole transport region located at (e.g., on), the first electrode, a light emitting layer located at (e.g., on), the hole transport region, an electron transport region located at (e.g., on), the light emitting layer, and a second electrode located at (e.g., on), the electron transport region. The electron transport region includes a mixed layer in which a first compound represented by Formula 1 and a second compound different from the first compound and represented by Formula 2 are mixed. The mixed layer is configured so that the light emitting efficiency and device lifespan of the light emitting device may be enhanced or improved.
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