DESC: With the Samsung 40-inch LN40B630 HDTV, you're investing in a high-quality LCD TV that offers top-of-the-line picture quality with 1080p high definition resolution. Enjoy the sharpest details and vivid color with an 80,000:1 dynamic contrast ratio for more realistic images and Samsung's Wide Color Enhancer 3 technology for a more natural rendering of colors. It also incorporates a number of innovative features to reduce the motion blur and image judder, which traditionally plague LCD HDTVs when displaying fast movement. This B630 series HDTV combines an ultra-fast 4ms (millisecond) response time with Samsung's Auto Motion Plus frame interpolation technology, which utilizes a 120Hz refresh rate helps ensure crisp, easy viewing of sports, video games and movies.