BACK LIGHT UNIT, DISPLAY APPARATUS AND METHOD FOR CONTROLLING BACK LIGHT UNIT

摘要

PURPOSE: A backlight unit, a display device and a backlight unit control method are provided to increase the stereoscopic effect of an image by controlling the brightness of a light emitting device according to the brightness of the image. CONSTITUTION: An image depth extracting unit(24) extracts image depth information from an image signal. A brightness outputting unit(26) outputs the brightness from the image depth information. A control unit(28) controls the light emitting devices according to the brightness. An image board generates an image signal. A display panel displays an image according to an image signal of the image board. A display panel driving unit(22) generates a display panel driving signal according to an image signal.