Method of manufacturing an organic electroluminescent device with an encapsulating substrate
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United States of America Patent
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Jan 19, 2010
Grant Date -
Dec 15, 2005
app pub date -
Apr 20, 2005
filing date -
Jun 9, 2004
priority date (Note) -
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Abstract
A method of manufacturing an organic electroluminescence device whereby an encapsulating layer is formed by coating an encapsulating substrate with an encapsulating layer-forming composition and thermally processing the encapsulating substrate. A plasma treatment is performed on the encapsulating substrate having the encapsulating layer. A sealant is applied to at least one of the plasma treated encapsulating substrate and a substrate on which an organic electroluminescent unit including a first electrode, an organic layer, and a second electrode, which are sequentially stacked, is deposited. The sealing substrate and the substrate on which the organic electroluminescent unit is deposited are combined. Contaminants generated around the encapsulating layer and generated in the thermal process can be effectively removed by the cleaning process using plasma. Therefore, the interfacial adhesion between the sealant and the substrate is greatly improved, thereby preventing permeation of external air, moisture, etc., into the device.
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