REFLECTIVE ANODE ELECTRODE FOR ORGANIC EL DISPLAY
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United States of America Patent
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Issued Date -
Aug 9, 2012
app pub date -
Nov 16, 2010
filing date -
Nov 16, 2009
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Abandoned
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Abstract
Disclosed is a reflective anode electrode for an organic EL display, which comprises a novel Al-based alloy reflective film. The reflective anode electrode is capable of assuring low contact resistance and high reflectance even in cases where the Al reflective film is in direct contact with an oxide conductive film such as an ITO or IZO film. In addition, when the Al reflective film is formed into a laminated structure together with the oxide conductive film, the work function of the surface of the upper oxide conductive film is equally high with the work function of a laminated structure that is composed of a general-purpose Ag-based alloy film and an oxide conductive film. Specifically disclosed is a reflective anode electrode for an organic EL display, which is formed on a substrate and characterized by comprising a laminated structure that is composed of an Al-based alloy film containing 0.1-6% by atom of Ag and an oxide conductive film that is formed on the Al-based alloy film so as to be in direct contact with the Al-based alloy film.
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