METHOD FOR MANUFACTURING SUBSTRATE, SUBSTRATE, METHOD FOR MANUFACTURING ORGANIC ELECTROLUMINESCENCE DEVICE, AND ORGANIC ELECTROLUMINESCENCE DEVICE
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United States of America Patent
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Issued Date -
Jun 15, 2017
app pub date -
Nov 19, 2014
filing date -
Nov 27, 2013
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Abstract
The purpose of the present invention is to reduce light, which is absorbed at an interface of an organic electroluminescence device and disappears, thereby improving the efficiency of extraction of light that is drawn to the outside. A substrate 11 is coated with polymer to form a polymer layer 12; ion bombardment stress resulting from plasma is applied to the polymer layer 12 to form a corrugated layer 13 having a plurality of corrugated parts; and a first electrode, an organic light-emitting layer, and a second electrode are successively formed on the substrate, on which the corrugated layer is formed, thereby manufacturing an organic electroluminescence device. In addition, a metal layer 23 may be additionally formed on the polymer layer, ion bombardment stress and thermal stress may be applied simultaneously to form corrugated parts, and the metal layer may then be removed.
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