Light emitting device

An electronic appliance having a light-emitting device comprising:

• a light-emitting element having first and second electrodes;
• a current source including at least one transistor and a capacitance element;
• means for supplying a signal current supplied from the current source to the light-emitting element according to an inputted video signal;
• and
• means for applying a reverse bias to the light-emitting element while maintaining potentials on the first and second electrodes.

An electronic appliance having a light-emitting device comprising:

• a light-emitting element having first and second electrodes;
• a current source including at least one transistor and a capacitance element;
• means for setting a plurality of sub-frame periods within a unit frame period corresponding to a synchronization timing of an inputted video signal;
• capacitance means for holding the video signal;
• means for supplying a signal current supplied from the current source to the light-emitting element;
• means for placing potentials on both electrodes of the capacitance means to a same potential thereby ceasing light emission of the light-emitting element;
• and
• means for applying a reverse bias to the light-emitting element while maintaining potentials on the first and second electrodes.