Method of manufacturing organic electroluminescent element and white light-emitting organic electroluminescent element
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United States of America Patent
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Apr 16, 2013
Grant Date -
Jan 27, 2011
app pub date -
Jun 24, 2009
filing date -
Jun 26, 2008
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Abstract
In the present invention, disclosed is a method of manufacturing an organic electroluminescent element in which at least an anode, a light emission layer and a cathode are laminated, wherein at least one light emission layer possesses two kinds of light-emitting dopants, the method comprising the step of conducting a process in which the organic EL element is subjected to an annealing treatment after forming at least the anode, the at least one light emission layer and the cathode as an element structure. By the method of the present invention, a stably manufacturable organic electroluminescent element exhibiting high light emission efficiency and long lifetime is possible to be prepared, and a white light-emitting organic electroluminescent element is suitably prepared.
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