Patent ID: 7332867
Filing Date: 2008-02-19
Classification: H05B

Abstract:
1. A lamp driving apparatus of a display device, the apparatus comprising: a plurality of lamps to irradiate light to a display panel; an inverter receiving a DC voltage from an exterior voltage source to convert the DC voltage into an AC signal and to supply the converted AC signal to the lamps; a feedback circuit arranged between the inverter and the lamps to detect a current outputted from the lamps; and an inspecting part disposed between the feedback circuit and the lamps, the inspecting part comprising a light emitting device to determine if one of the lamps has an abnormality, wherein the inspecting part comprises: a lamp measuring part connected between the one of the lamps and the feedback circuit; a voltage maintaining part connected between the lamp measuring part and the feedback circuit; and a switching part arranged between the voltage maintaining part and the feedback circuit.