If you own a collection of retro games from yesteryear, chances are you remember how they looked on an old 4:3 TV screen. Monitors back then featured a much lower resolution than today’s high-definition TVs, but had a distinctive look that most fondly remember – scanlines.
Arcade gaming has come a long way since many dropped quarters into stand-up and sit-down cabinets, admiring the graphics on a glowing CRT screen. Today, many can enjoy their games of yesteryear via MAME or other arcade emulation, but the experience on modern LCD screens isn’t the same. For those who remember CRT displays, scanlines were distinct and quite visible, and in many cases characterized how the graphics were to appear. A scanline is one line, or row, in a raster scanning pattern, such as a line of video on a cathode ray tube (CRT) display of a television set or computer monitor.
SCAN.DL – or “Scan Delineation Line” – is an adjustable, VGA input/output adapter that generates scanlines, replicating the appearance of older CRT monitors on modern, hi-resolution LCD/LED displays.