ORGANIC LIGHT EMITTING DEVICE AND METHOD FOR DESIGNING SAME
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United States of America Patent
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Mar 27, 2025
app pub date -
Jul 4, 2022
filing date -
Jul 4, 2022
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Abstract
An organic light emitting device including a light emitting layer containing a first organic compound, a second organic compound as a delayed fluorescent material, and a third organic compound, having lowest excited singlet energy ES1 satisfying ES1(1)>ES1(2)>ES1(3). The S value of the light emitting layer is smaller than the S value of the reference light emitting layer containing other light emitting layer components than the second organic compound.
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