Patent attributes
According to the present invention, in a liquid crystal display device which intermittently drives (burst driving) a light source device having a discharge tube which is arranged to face a main surface of a liquid crystal display panel in an opposed manner and is turned on in response to an alternating electric field, the resistance between first and second active elements which constitute a resonance circuit at a primary side of a driving circuit of the light source device and the reference potential in the driving circuit is set higher when burst driving of the discharge tube assumes the turn-OFF state than when the burst driving of the discharge tube assumes the turn-ON state. Due to such a constitution, it is possible to lower the luminance when the burst driving is in the turn-OFF state than when the burst driving is in the turn-ON state without extinguishing the discharge tube when the burst driving is off whereby it is possible to suppress blurring of motion picture s whereby blurring of the motion picture can be suppressed and luminance of the image can be increased.
