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 Vibrant detail from practically any position with consistent color and image clarity maintained across an ultra-wide 178° horizontal and vertical viewing angles. 178 178 Be prepared for brilliant visuals and crisp images with the unforgettable quality of this stunning FHD display. 1920 x 1080 Full HD DisplayPort 1 HP LM917A8, 54.6 cm (21.5"), 1920 x 1080 pixels, Full HD HP LM917A8. Display diagonal: 54.6 cm (21.5"), Display resolution: 1920 x 1080 pixels, HD type: Full HD, Display surface: Matt, Native aspect ratio: 16:9, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°