METHOD OF FABRICATING AN ORGANIC ELECTROLUMINESCENT DEVICE AND SYSTEM OF DISPLAYING IMAGES
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United States of America Patent
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Feb 15, 2011
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Oct 16, 2006
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Abstract
A method for fabricating organic electroluminescent devices is disclosed. The method comprises providing a substrate divided into first and second regions, forming an amorphous silicon layer on the substrate, forming a protection film on the amorphous silicon layer within the second region, performing an excimer laser annealing process on the amorphous silicon layer for converting it to a polysilicon layer, removing the protection film, patterning the polysilicon layer, thus a first patterned polysilicon layer in the first region and a second patterned polysilicon layer in the second region are formed. A resultant organic electroluminescent device is obtained. Specifically, the grain size of the first patterned polysilicon layer is large than that of the second patterned polysilicon layer.
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