A display device includes a driver circuit including a logic circuit including a first transistor which is a depletion type transistor and a second transistor which is an enhancement type transistor; a signal line which is electrically connected to the driver circuit; a pixel portion including a pixel whose display state is controlled by input of a signal including image data from the driver circuit through the signal line; a reference voltage line to which reference voltage is applied; and a third transistor which is a depletion type transistor and controls electrical connection between the signal line and the reference voltage line. The first to the third transistors each include an oxide semiconductor layer including a channel formation region.
申请公布号
WO2011036987(A1)
申请公布日期
2011.03.31
申请号
WO2010JP64975
申请日期
2010.08.26
申请人
SEMICONDUCTOR ENERGY LABORATORY CO., LTD.;KOYAMA, JUN;YAMAZAKI, SHUNPEI