Unit circuit, control method thereof, electronic device, electro-optical device, and electronic apparatus

A light-emitting device, comprising:

• a scanning line;
• a data line;
• a pixel circuit arranged corresponding to an intersection of the scanning line and the data line;
• and
• a power source line,
• the pixel circuit including:
• a light-emitting element;
• a driving transistor connected between the power source line and the light-emitting element;
• a first switching transistor connected to the data line;
• a second switching transistor connected between a gate and a source of the driving transistor;
• and
• a capacitance connected between the first switching transistor and the gate of the driving transistor,
• during a first period, the first and second switching transistors being turned on, and a reference potential being supplied to the data line;
• and
• during a second period, the first switching transistor being turned on, and the second switching transistor being turned off, and a data potential corresponding to light-emitting brightness of the light-emitting element being supplied to the data line, and a potential of the power source line being at a low level;
• and
• during a third period after the second period, the first and second switching transistors being turned on and the data potential being supplied to the data line, and a potential of the power source line being at the low level.