Enhancement of light extraction with cavity and surface modification
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United States of America Patent
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Mar 17, 2009
Grant Date -
Aug 10, 2006
app pub date -
Feb 9, 2005
filing date -
Feb 9, 2005
priority date (Note) -
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Abstract
An organic light emitting diode (OLED) device includes an anode layer upon a DBR (Distributed Bragg Reflector) stack such that the anode layer is modified by creating lens-like features on its surface. The OLED device also includes a planarizing layer on said anode layer, said planarizing layer filling in said lens-like features, said planarizing layer providing a flat uniform surface for the deposition of other layers thereupon.
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