LIGHT SOURCE DEVICE, A METHOD FOR DRIVING THE SAME AND A DISPLAY DEVICE HAVING THE SAME, CAPABLE OF SENSING THE TEMPERATURE OF A LIGHT EMITTING BLOCK

摘要

PURPOSE: A light source device, a method for driving the same and a display device having the same are provided to effectively control local heat by controlling and compensating a dimming level of an over light emitting block and an around light emitting block.;CONSTITUTION: A light source module(200) comprises a plurality of light source blocks. A local dimming driving part(270) is operated based on the dimming level of an over light-emitting block. A local dimming driving part controls the dimming level of over light-emitting block and the dimming level of around light-emitting blocks. The local dimming driving part drives the light-emitting blocks. The local dimming driving part comprises an image analysis part(210), a dimming level determination part(220), and a light distribution compensation(230), and an LED driving unit(250). The image analysis part extracts a representative brightness value of the light-emitting block. The optical distribution compensation part compensates the dimming levels.;COPYRIGHT KIPO 2010