OLED device with improved performance
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United States of America Patent
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Nov 15, 2011
Grant Date -
Oct 26, 2006
app pub date -
Apr 20, 2005
filing date -
Apr 20, 2005
priority date (Note) -
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Abstract
An OLED device includes an anode, a cathode, and at least one individually selected organic light-emitting layer disposed between the anode and cathode. The device also includes an electron-transporting layer disposed between the at least one light-emitting layer and the cathode, such electron-transporting layer including a first electron-transporting material, and an electron-injecting layer disposed between the electron-transporting layer and the cathode, such electron-injecting layer including a metal dopant having a work function less than 4.0 eV and an electron-transporting material that is different from the first electron-transporting material.
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