Manufacturing method of an organic electroluminescence device with light and dark blue emitting layers
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United States of America Patent
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May 27, 2008
Grant Date -
Sep 7, 2006
app pub date -
Apr 19, 2006
filing date -
Oct 29, 2003
priority date (Note) -
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Abstract
An organic electroluminescent device is provided. The device includes a substrate, an anode, an emitting layer and a cathode. The anode is disposed on the substrate, the emitting layer is disposed on the anode, and the cathode is disposed on the emitting layer. The emitting layer is constructed by a dark-blue emitting layer/light-blue emitting layer/reddish orange emitting layer or a light-blue emitting layer/dark-blue emitting layer/reddish orange emitting layer. Since the dark-blue emitting layer has an excellent bright blue light color and high brightness, and the light-blue emitting layer has a long service life, and therefore, organic electroluminescent device of the present invention has an excellent blue light color, high brightness and long service life.
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