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Methods of manufacturing an organic electroluminescent device

Image Number 3 for United States Patent #8128448.

A manufacturing method is provided for an organic electroluminescent device that includes an effectively optical area including display pixels for display; and a dummy area surrounding the effectively optical area, the dummy area including dummy pixels not for display. The manufacturing method includes forming organic electroluminescent layers in the display pixels and in the dummy pixels by vapor depositing an organic electroluminescent material using a mask.

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