Patent ID: 7298096

Claim:
A display device, comprising: a display panel; a panel driving circuit for driving the display panel; a lamp unit including at least one lamp and providing light to the display panel; a circuit for sensing a status of the at least one lamp, including; a reference voltage output unit, the reference voltage output unit providing a reference voltage; a voltage sensor, the voltage sensor detecting a sensed voltage corresponding to the status of the at least one lamp, the status of the at least one lamp including an open-circuit status and a closed-circuit status; and a comparator, the comparator comparing the sensed voltage with the reference voltage and outputting a result indicating the status of the at least one lamp; an enable signal output unit for outputting an enable signal; an enable signal control unit receiving the result indicating the status of the at least one lamp, the enable signal control unit disabling the enable signal output unit when the result indicates the status of the at least one lamp being the open-circuit status; and a system power control unit, the system power control unit stopping supplying power to the at least one lamp when the enable signal output unit is disabled.