Light Emitting Device and Driving Method Thereof

A light emitting device comprising:

• a plurality of pixels, each of the plurality of pixels comprising a light emitting element and a transistor for controlling a current supplied to the light emitting element
• a panel comprising a plurality of power source lines for supplying the current to the plurality of pixels,
• wherein switching of the transistor is controlled by a video signal,
• wherein a potential of the video signal when the transistor provided at the pixel in correspondence with a same color is made on and a potential of the video signal when the transistor provided at the pixel in correspondence with other color is made on are applied to the panel via connection terminals different from each other, and
• wherein a potential of the power source line for supplying the current to the pixel in correspondence with the same color and a potential of the power source line in correspondence with the other color are applied to the panel via connection terminals different from each other.

A method of a driving a light emitting device comprising:

• a plurality of pixels, each of the plurality of pixels comprising a light emitting element and a transistor for controlling a current supplied to the light element;
• and
• a plurality of power source lines for supplying the current to the plurality of pixels,
• wherein an absolute value of a gate voltage when the transistor provided at the pixel in correspondence with a same color is made on differs from an absolute value of the gate voltage when the transistor provided at the pixel in correspondence with other color is made on, and
• wherein a potential of the power source line for supplying the current to the pixel in correspondence with the same color differs from a potential of the power source line in correspondence with the other color and the transistor is operated in a saturated region.

A method of a driving a light emitting device, the light emitting device comprising a plurality of first pixels connected to a first signal line and a first power supply line, a plurality of second pixels connected to a second signal line and a second power supply line, each of the plurality of first and second pixels comprising a light emitting element and a transistor connected to the light emitting element, the method comprising:

• applying a first video signal to the first signal line;
• applying a second video signal to the second signal line;
• applying a first voltage to the first power source line;
• applying a second voltage to the second power source line,
• wherein a potential of the first video signal is different from a potential of the second video signal,
• wherein a potential of the first power source line is different from a potential of the second power source line,
• wherein the transistor is operated in a saturated region.