OVJP for printing graded/stepped organic layers
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United States of America Patent
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Jan 16, 2018
Issued Date -
N/A
app pub date -
Dec 17, 2015
filing date -
Feb 7, 2013
priority date (Note) -
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Abstract
An emissive layer deposited in graded manner using a plurality of nozzles is disclosed. A mixtures ejected from the plurality of nozzles may contain varying concentrations of host-to-dopant material. The nozzles, as disclosed, may be arranged in a sequential manner such that the order of the sequence is based on varying concentration of the host-to-dopant material. The nozzles may be configured to translate relative to an area of a substrate to allow sequential deposition.
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