| 摘要 |
PURPOSE: A display device and light source driving device are provided to stop operations of unnecessary light sources in a no-signal mode, thereby reducing unnecessary power consumption. CONSTITUTION: A plurality of light source units is operated by a driving voltage. A light source controller receives a mode alarm signal and the location information of a no-signal display image(S16). The light source controller differently controls a lighting state of a light source unit corresponding to the location information and the lighting states of the other light source units. The light source units include at least one light emitting diode.
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