LIGHT EMITTING DEVICE, MANUFACTURING METHOD OF THE LIGHT EMITTING DEVICE, AND DISPLAY DEVICE COMPRISING THE SAME
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United States of America Patent
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Issued Date -
Jun 8, 2023
app pub date -
Jul 27, 2022
filing date -
Dec 6, 2021
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Abstract
A light-emitting device includes a first electrode; a second electrode that overlaps the first electrode in a plan view; an emission layer disposed between the first electrode and the second electrode; a hole transport region disposed between the first electrode and the emission layer; and an electron transport region disposed between the emission layer and the second electrode, and at least one of the hole transport region or the electron transport region includes a recess portion.
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