LOADING EFFECT CONTROL UNIT AND ORGANIC LIGHT EMITTING DISPLAY DEVICE HAVING THE SAME

摘要

A loading effect control device comprises a detecting line, a detecting unit, a load adjusting unit, and a gamma reference voltage generating unit. The detecting line is coupled to a first power voltage supply line in a display panel wherein a first power voltage is applied to the first power voltage supply line. The detecting unit measures the first power voltage in the display panel through the detecting line and compares the first power voltage with a preset first reference voltage to output a first voltage in correspondence with a load amount of the display panel. The load adjusting unit determines a load adjusting amount in accordance with the detected load amount and a loading effect setting and outputs a second voltage in correspondence with the determined load adjusting amount. The gamma reference voltage generating unit adjusts a gamma reference voltage in accordance with the determined load adjusting amount.