ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR Videos and games come to life with less stutter or blur for more realistic play with smooth 5 milisecond gray-to-gray response time. 5 HP 2009v 20 inch Diagonal LCD Monitor, 50.8 cm (20"), 1600 x 900 pixels, 5 ms HP 2009v 20 inch Diagonal LCD Monitor. Display diagonal: 50.8 cm (20"), Display resolution: 1600 x 900 pixels, Response time: 5 ms, Native aspect ratio: 16:9, Viewing angle, horizontal: 160°, Viewing angle, vertical: 160°