Light source driving apparatus, display device having the same, and driving method thereof

A method for driving a plurality of light sources, comprising:

• setting a condition to divide the plurality of the light sources based on time and drive the plurality of the light sources;
• generating a control signal based on the condition;
• and
• sequentially providing a driving current to the plurality of the light sources according to the control signal.

A display device comprising:

• a display which displays an image;
• an optical engine which emits lights of a predetermined luminance to display the image on the display;
• and
• a controller which controls the optical engine to process an image signal input from outside and display the image,
• wherein the optical engine comprises:
• a light source module comprising a plurality of light sources,
• a light source driver which outputs a driving current to drive the plurality of the light sources, and
• a switch which selectively and plurally feeds the driving current to the plurality of the light sources and sequentially drives the selectively fed light sources.

A method for driving a display device which comprises a display to display an image and a plurality of light sources to emit lights of a predetermined luminance, the method comprising:

• setting a condition to time-divide and drive the plurality of the light sources;
• generating a control signal based on the condition;
• sequentially providing a driving current to the plurality of the light sources according to the control signal;
• and
• displaying an image on the display using lights emitted from the plurality of the light sources which are sequentially driven by the driving current.