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 Viewsonic VS14833, 21.5", 1920 x 1080 pixels, Full HD, LED, 5 ms, Black Viewsonic VS14833. Display diagonal: 21.5", Display resolution: 1920 x 1080 pixels, HD type: Full HD, Display technology: LED, Response time: 5 ms, Viewing angle, horizontal: 170°, Viewing angle, vertical: 160°. Built-in speaker(s). Product color: Black https://www.computerworld.com/article/2495526/computer-peripherals-a-touchscreen-on-your-desktop-three-new-displays.html Your next touchscreen may not be on a phone, tablet or laptop, but part of your desktop system. The latest touch displays work well with Microsoft's new Windows 8 operating system, but can tilt or fold flat on a desktop to make swiping, tapping and for... https://www.pcmag.com/reviews/viewsonic-td2220 Touch-screen monitors have been around for years but until recently have been almost exclusively used for commercial purposes, most notably in information kiosks, banks, and the food service industry. Now, with Windows 7 and Windows 8 offering built-in su... http://www.toptenreviews.com/computers/peripherals/best-touchscreen-monitors/viewsonic-td2220-review.html The ViewSonic TD2220 is an optical HD touchscreen with a standard contrast ratio but a dimmer screen than other monitors we reviewed. It doesn't come with a stylus, but you can use one if you want. The ViewSonic monitor is a multi-touch device, so you ... This touchscreen monitor works with a PC or a Mac. Additionally, it has a high-definition screen and a fast response time The viewing angles for this monitor aren't as wide as the viewing angles on some of the other monitors we reviewed. Also, the screen can't exceed 200 candela per square meter, which isn't dim, but many of the other monitors' screens can be much brighter... Although this touchscreen has a lot of really great features and specs, some of the other monitors we reviewed are even better. Still, the ViewSonic TD2220 is a great HD optical touchscreen. With the optical capabilities, you can use your finger, gloved h...