Patent ID: 7915830
Filing Date: 2011-03-29
Classification: G09G,H01L

Abstract:
1. A driving method of a semiconductor device comprising a first transistor and a second transistor, wherein a gate electrode of the first transistor is electrically connected to a gate electrode of the second transistor, wherein a first electrode of the first transistor is electrically connected to a load, wherein a second electrode of the first transistor is electrically connected to a first electrode of the second transistor, wherein a second electrode of the second transistor is electrically connected to a first wiring, comprising the steps of: inputting a first current through the second transistor from the first wiring during a first period; and inputting a second current through the first transistor and the second transistor from the first wiring to the load during a second period, wherein the first transistor is in an off state during the first period.