Organic light-emitting device with heat dissipation structure
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United States of America Patent
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Issued Date -
Feb 7, 2008
app pub date -
Oct 16, 2006
filing date -
Aug 7, 2006
priority date (Note) -
Abandoned
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Abstract
An organic light-emitting device (OLED) with a heat dissipation structure includes a substrate, an anode layer, a metal layer, a light-emitting layer, a cathode layer, at least one external anode, and at least one external cathode, wherein at least one external anode is connected to the anode layer, and at least one external cathode is connected to the cathode layer. The metal layer, due to having a high thermal conductivity, conducts the heat generated during the operation of the light-emitting layer to the external anode. The cathode layer, due to having a good thermal conductivity, also conducts the heat generated during the operation of the light-emitting layer to the external cathode. In addition, the tips of the metal layer after being etched may cause discontinuity of the coating layer of the light-emitting layer and abnormal light emission. Therefore, an insulating material is needed to wrap the metal layer to produce a flattening effect, thereby eliminating the discontinuity of the coating layer of the light-emitting layer.
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