METHOD OF DIMMING BACKLIGHT DEVICE AND DISPLAY APPARATUS USING THE SAME

摘要

PURPOSE: A method of dimming backlight device and display apparatus using the same are provided to determine representative luminance values corresponding to each dimming area by using selected parameters. CONSTITUTION: A display panel(210) divides a plurality of dimming areas. A backlight unit(260) includes a plurality of light source and light blocks. A dimming device outputs a dimming signal. A dimming signal(270) controls duty of light source blocks. A light source driving unit(250) outputs a driving signal to each light source block.