HP 2159M 21.5-Inch HD LCD Monitor View movies, photos and online games, using a 21.5inch widescreen monitor. Enjoy Full High Definition with the stunning image clarity of 1920 x 1080p maximum resolution. Sharpen images and reduce glare with HP BrightView technology. Reduce blur while enjoying sports, action movies or online games with a 5 ms On/Off response time. Enjoy deeper blacks, brighter whites and subtle colors with a 3000:1 dynamic contrast ratio.