By adjusting the luminance of the backlight to achieve the darkest black and brightest white it dynamically enhances the displays contrast delivering lifelike images.Each PA248Q is pre-calibrated at factory to prove the best color accuracy- the out-of-box settings are impressive. To ensure that each PA248Q produces the most accurate and consistent color, we carefully measure its E and gamma value and track its gray-scaling. It even supports both Gamma 2.2 for PC and Gamma 1.8 for Mac offering users more flexibilities to work with.