With the BL702A Flicker-free LED backlight panel, an ultra-high dynamic contrast ratio of 120,000:1, and BenQ's exclusive Senseye Technology to offer you the best viewing quality at all times. The BenQ BL702A is designed with computer ergonomics in mind to add comfort and flexibility to your everyday work - boosting productivity and efficiency at the same time! While modern monitors are mostly in 16:9 aspect ratio, we understand that there are still applications look right on older squarish screens; and such models are available for your choice. The BL702A is upgraded to eliminate flickering at all brightness levels, effectively reducing eye fatigue. Test Your Computer Monitor for Flickering: The Flicker-free technology eliminates flickering at all brightness levels and effectively reducing eye fatigue. Conventional LCD screens flicks 200 times per second. Your eyes may not see flickers, but can certainly feel them. Free your eyes from flickers by switching to Flicker-free Monitors and let your eyes do less work.