The present invention provides a manufacturing method of a light emitting device in which the number of display panels manufactured from one substrate is increased and display panel is mass produced is provided. One feature of the invention is that the shipping is performed not by separating the substrate over which a plurality of light emitting regions is formed and attaching the FPC to the each piece thereof but before separating, namely in the incomplete state (that can be also referred to as semi end products). However, the invention has a structure in which the inspection can be partly carried out before the shipping.

 
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