4K HDR displays reveal an enriched, detailed viewing experience including more vibrant colors and clearer imagery. 4K resolution, as defined by TV manufacturers is 3840×2160 pixels or 2160p. For comparison, the quality of 4K displays is approximately four times what is experienced on a current HD display (1080p).
HDR, or high dynamic range, increases the clarity of the lightest and darkest parts of the TV image. This makes the whites strikingly white and the blacks even darker, rather than appearing as a shade of gray.