HP W1858 18.5-Inch Widescreen Monitor Display documents, photos and video on a wide 18.5-inch monitor. View movies and letterbox content easily, using a 16:9 aspect ratio. View details clearly with a maximum resolution of 1366 x 768. Get deeper blacks, brighter whites and subtle colors with a 1000:1 contrast ratio. Reduce blur with a 5 ms On/Off response time.