The device has a display with three full subpixels per pixel, resulting in a sharp and crisp picture. Pixels in some displays (like AMOLED) share one subpixel to preserve space. This can result in a less crisp, slightly blurred image.
A newer HDMI version offers a higher bandwidth and is capable of carrying a better signal, e.g. more audio channels, more frames per second etc.
Samsung K6250 49"