Display apparatus and brightness control method thereof

摘要

Discloses is a display apparatus capable of alleviating an offset value occurring for the same current command value and minimizing a delay time taken for a light source to emit light after transmission of the current command value. The display apparatus comprises a display part that displays an image based on an image signal; a light source that supplies light to the display part; a current commanding part that outputs a current command value according to a brightness of the image; a current detecting part that detects current supplied to the light source; and a controller that sets the outputted current command value as a reference current command value if a value of the detected current value falls within a predetermined tolerable range, and controls the current commanding part such that the reference current command value is reflected in a target current command value of the light source depending on the brightness of the image.