A display device comprising: a monitor light emitting element; a monitor line; a first unit for supplying a constant current to the monitor line; a short interruption circuit comprising a first transistor and an inverter for turning off the first transistor if the monitor light emitting element is short-circuited and wherein an input terminal of the inverter is electrically connected to a first electrode of the monitor light emitting element and an output terminal of the inverter is electrically connected to a gate electrode of the first transistor and one of a source electrode and a drain electrode of the first transistor is electrically connected to the monitor line and the other is electrically connected to the first electrode of the monitor light emitting element and a second electrode of the monitor light emitting element is electrically connected to a power supply line; and wherein the short interruption circuit is configured for interrupting a current which is supplied through the monitor line to the monitor light emitting element, if the monitor light emitting element is short-circuited; a monitor inspection power supply; and a second unit comprising a second transistor wherein one of a source electrode and a drain electrode of the second transistor is electrically connected to the monitor inspection power supply and the other is electrically connected to the first electrode of the monitor light emitting element, the other of the source electrode and drain electrode of the first transistor, and the input terminal of the inverter and wherein a gate electrode of the second transistor is electrically connected to a monitor inspection transistor control line; and wherein the second unit is configured to inspect the short interruption circuit by inspecting a potential of the monitor line when the monitor inspection power supply and the first electrode of the monitor light emitting element are electrically connected to each other by turning on the second transistor. a monitor light emitting element; a monitor line; a first unit for supplying a constant current to the monitor line; a short interruption circuit comprising a first transistor and an inverter for turning off the first transistor if the monitor light emitting element is short-circuited and wherein an input terminal of the inverter is electrically connected to a first electrode of the monitor light emitting element and an output terminal of the inverter is electrically connected to a gate electrode of the first transistor and one of a source electrode and a drain electrode of the first transistor is electrically connected to the monitor line and the other is electrically connected to the first electrode of the monitor light emitting element and a second electrode of the monitor light emitting element is electrically connected to a power supply line; and wherein the short interruption circuit is configured for interrupting a current which is supplied through the monitor line to the monitor light emitting element, if the monitor light emitting element is short-circuited; a monitor inspection power supply; and a second unit comprising a second transistor wherein one of a source electrode and a drain electrode of the second transistor is electrically connected to the monitor inspection power supply and the other is electrically connected to the first electrode of the monitor light emitting element, the other of the source electrode and drain electrode of the first transistor, and the input terminal of the inverter and wherein a gate electrode of the second transistor is electrically connected to a monitor inspection transistor control line; and wherein the second unit is configured to inspect the short interruption circuit by inspecting a potential of the monitor line when the monitor inspection power supply and the first electrode of the monitor light emitting element are electrically connected to each other by turning on the second transistor.