Systems and Methods for Drying Patterned OLED Formulations
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United States of America
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Jan 23, 2020
app pub date -
Jul 23, 2019
filing date -
Jul 23, 2019
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Abstract
A drying chamber for drying a substrate patterned with display areas wetted by OLED materials dissolved or suspended in a volatile carrier liquid and separated from one another by dry boundary regions. A mask adjusts drying rate of the carrier liquid during vacuum extraction using vapor-transmissive areas opposite the wet areas and vapor-barrier regions opposite the dry boundary regions, or by confining the wet areas collectively in a chamber volume small enough to quickly saturate with the carrier liquid before vacuum extraction.
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