Patent ID: 7940234
Filing Date: 2011-05-10
Classification: G09G,H01L

Abstract:
1. A display device comprising: a pixel array unit in which a plurality of pixel circuits are formed, said pixel circuits each including a light emitting element, a power supply line, a driving transistor connected between said power supply line and a predetermined electrode of the light emitting element, and a switching transistor connected between a signal line and a gate electrode of said driving transistor; a first scanner for supplying a potential to said power supply line; and a second scanner for outputting a driving signal to said switching transistor; wherein said power supply line is formed as multilayer wiring, said driving transistor includes a gate electrode formed by a first wiring layer, a channel forming region, a gate insulating film formed between said gate electrode and said channel forming region, and a first electrode and a second electrode formed such that said channel forming region is interposed between the first electrode and the second electrode, and said power supply line includes a second wiring layer formed so as to be connected to the first electrode of said driving transistor via a contact formed in an insulating film, and a third wiring layer formed so as to be connected to said second wiring layer via a contact formed in an interlayer film.