The iiyama E2008HDD-1 20 inch LCD offers great value for your money, & is the ideal screen for Gaming or as a Home Office display. iiyamas i-style Colour Modes ensure high colour performance, supported by an ultra fast 2 msec response time & a high 1600 x 900 resolution. With DVI & VGA connections & iiyamas Power Saving Eco Modes, you are in safe hands with this superb display. Contrast Ratio is a measurement of the difference between the darkest black & the brightest white your monitor can display. Advanced Contrast Ratio is a feature that automatically adjusts contrast & brightness of the screen to assure perfect picture quality while watching films & playing games. When very fast graphics are displayed your monitor can sometimes get blurry. Turning on the Over Drive feature will eliminate that. A typical LCD uses four backlight lamps. By reducing this number to two only, we have managed not only to considerably lower the power consumption, but also to reduce the CO2 emission into the environment making this LCD a true ECO-Friendly product.