It is an object of the present invention to prevent a bright pixel defect caused by continuous current flow into a pixel, or to provide a display device in which effects on the surrounding pixels due to concentration of current on a part of the pixel can be suppressed. A display device according to the invention has a wiring for supplying current provided over an insulating surface, and a pixel electrode connected to the wiring. The pixel electrode has a layered structure of a plurality of different conductive films. Further, the pixel electrode has a narrow width region at least in a region where the wiring and the pixel electrode are electrically connected to each other. For example, a layered structure of a metal film and a transparent electrode can be used as a plurality of different conductive films.

 
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