Semiconductor device, display device, and electronic device

A display device comprising:

• a display section having one or a plurality of common electrodes;
• and
• a driving section including a semiconductor device, the semiconductor device including (a) one or a plurality of pieces of first wiring extending along a first direction on a substrate and having a main wiring section and a bifurcation wiring section arranged so as to be separated from each other, (b) one or a plurality of pieces of second wiring extending having a trunk wiring section extending along a second direction different from the first direction on the substrate, and two branch gate electrodes electrically connected to the trunk wiring section and extending along the first direction within a gap region between the main wiring section and the bifurcation wiring section, (c) one or a plurality of transistors having a first source region electrically connected to the main wiring section, a second source region electrically connected to the bifurcation wiring section, and a drain region arranged between the two branch gate electrodes that are arranged between the first source region and the second source region, and (d) one or a plurality of pieces of third wiring extending along the second direction and electrically connected to the drain region of the transistor,
• wherein,
• the third wiring is electrically connected to the common electrode.

A display device comprising:

• a display section having one or a plurality of common electrodes;
• and
• a driving section including a semiconductor device, the semiconductor device including:
• one or a plurality of pieces of first power supply line extending along a first direction on a substrate and having a first main wiring section and a first bifurcation wiring section arranged so as to be separated from each other;
• one or a plurality of pieces of second power supply line extending along a first direction on a substrate and having a second main wiring section and a second bifurcation wiring section arranged so as to be separated from each other;
• one or a plurality of pieces of a control signal line extending having
• a trunk wiring section extending along a second direction different from the first direction on the substrate, and
• a first branch gate electrode, a second branch electrode, a third branch electrode, and a fourth branch electrode that are electrically connected to the trunk wiring section and extending along the first direction within a gap region between the main wiring section and the bifurcation wiring section,
• one or a plurality of first transistors having:
• a first source region electrically connected to the first main wiring section;
• a second source region electrically connected to the first bifurcation wiring section, and the first branch gate electrode and the second branch gate electrode being arranged between the first source region and the second source region;
• and
• a first drain region arranged between the first branch gate electrode and the second branch gate electrode,
• one or a plurality of second transistors having:
• a third source region electrically connected to the second main wiring section;
• a fourth source region electrically connected to the second bifurcation wiring section, the third branch gate electrode and the fourth branch gate electrodes being arranged between the third source region and the fourth source region;
• and
• a second drain region arranged between the third branch gate electrode and the fourth branch gate electrode, and
• one or a plurality of pieces of output signal line extending along the second direction and electrically connected to both the first drain region of the first transistor and the second drain region of the second transistor,
• wherein the output signal line is electrically connected to the common electrode, and
• the first transistor is a N-type transistor and the second transistor is a P-type transistor.