Organic electroluminescence device with prescribed optical path length
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United States of America Patent
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Oct 22, 2002
Issued Date -
N/A
app pub date -
Dec 4, 2000
filing date -
Apr 5, 1999
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Abstract
An organic ELECTROLUMINESCENCE device exhibiting a minimal change in the color purity (CIE chromaticity coordinates) even if there is some fluctuation in the optical path length, and a method of manufacturing such an organic EL device are provided. The organic EL device contains an organic layer formed between electrodes at least one of which is a transparent electrode, wherein the total optical path length (t) of the transparent electrode and the organic layer satisfies the following inequality (a) or inequality (b) or both: Min-20 nm
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