This exciting 27-inch set uses a pure-flat picture tube, which not only looks cool compared with a conventional, bulbous screen, but also provides a high-quality, high-contrast picture--partly because of the screens ability to reduce reflected ambient light, but also due to the sets scan-velocity modulation. Scan-velocity modulation improves definition at picture edges, creating sharper images by slowing the CRT (cathode-ray tube) beams horizontal scanning during demanding work--say, when rendering transitions from light to dark parts of an image--and speeding it up when scanning easily rendered sections, like broad dark areas.