Display device

1. A display device comprising:

a plurality of pixels arranged in a matrix,

each of the plurality of pixels including:

a light emitting element that emits light according to an amount of current supplied;

a transistor that controls light emission of the light emitting element; and

a first switch connected to a gate of the transistor;

an electric charge drawing unit configured to draw electric charges in the gate of the transistor included in each of the plurality of pixels when power supply to the display device is stopped; and

a second switch connected to the gate of the transistor,

wherein the electric charge drawing unit includes a detector configured to detect the stop of the power supply by detecting a reduction in a power supply voltage supplied from outside the display device,

wherein the electric charge drawing unit is configured to draw the electric charges by placing the second switch in a conducting state when the stop of power supply is detected by the detector,

wherein the first switch switches an electrical connection between the gate of the transistor and a first wiring line between a conducting state and a non-conducting state,

the second switch switches an electrical connection between the gate of the transistor and a second wiring line different from the first wiring line between a conducting state and a non-conducting state, and

a predetermined voltage is applied to the second wiring line.

2. The display device according to claim 1 ,

wherein the electric charge drawing unit is configured to draw the electric charges by placing the first switch in a conducting state when the stop of power supply is detected by the detector.

3. The display device according to claim 1 ,

wherein

the electric charge drawing unit is configured to, when the stop of power supply is detected by the detector, place the first switch in a conducting state after a voltage of the first wiring line reaches a predetermined first wiring voltage.

4. The display device according to claim 3 ,

wherein the first wiring line is a power supply line that supplies a power supply voltage for controlling the light emission of the light emitting element to the plurality of pixels or a signal line that supplies a signal voltage corresponding to a brightness level of the light emitting element to the plurality of pixels.

5. The display device according to claim 3 ,

wherein the predetermined first wiring voltage is a voltage that reduces an electrical stress applied to the transistor.

6. The display device according to claim 1 ,

wherein the transistor is a driving transistor that supplies an electric current to the light emitting element.

7. A display device comprising:

a plurality of pixels arranged in a matrix,

each of the plurality of pixels including:

a light emitting element that emits light according to an amount of current supplied;

a transistor that controls light emission of the light emitting element;

a first switch that is connected to a gate of the transistor, and switches an electrical connection between the gate of the transistor and a first wiring line between a conducting state and a non-conducting state; and

a second switch that is connected to the gate of the transistor, and switches an electrical connection between the gate of the transistor and a second wiring line between a conducting state and a non-conducting state, the second wiring being different from the first wiring line and to which a predetermined voltage is applied;

a detector configured to detect stop of power supply to the display device by detecting a reduction in a power supply voltage supplied from outside the display device; and

a controller that draws electric charges in the gate of the transistor included in each of the plurality of pixels when the power supply to the display device is stopped, by placing the second switch in the conducting state when the stop of power supply is detected by the detector.