Think Ultra HD imaging has to cost a small fortune? Vizio will change your mind with its 43-inch M-series TV/monitor that sells for $600. With 3,840 by 2,160 pixel resolution, it has four-times the imaging elements of regular old HD screens or projectors and has a spatial scaling engine that can turn just about any input into beautifully sharp high-resolution imaging. The display has an 802.11ac dual-band WiFi radio, a six-core processor and the remote control has a cool mini-keyboard on the back.
Teaching video and image editing requires a big screen that doesn’t skimp on resolution, and HP’s $379 Z24n fits the bill with full HD resolution, factory-calibrated color and the ability to connect a pair of them to a single computer. The 24-inch monitor has a 16:10 aspect ratio and can show 99 percent of the sRBG gamut and can connect via HDMI, mini- and full-size DisplayPort connectors as well as a DVI port. It has a built-in four-port USB 3.0 hub and its bezel is thin enough to use for multi-display arrays. The stand can not only tilt, swivel and pivot, but can rotate the display between landscape and portrait modes.
Despite continuing advances in displays and computers, it’s still hassle to connect your small screen to a bigger one on the fly for a group of students to see. With power and video cables to deal with, I often cross my fingers in hope that it works on the first or second try. With AOC’s E1759FWU display all you need is one cable to share a screen.
The display uses the latest version of DisplayLink software and a USB cable to both power the screen and supply it with imaging data, making it about the easiest display to teach with.
At 9.8- by 16.1- by 0.6-inches, it’s small for a 17-inch display and only slightly larger than Lenovo’s ThinkVision LT1421, which has a 14-inch screen. It delivers 15.1- by 8.7-inches of viewable space, but its 1,600 by 900 resolution, 262,000 color gamut and 10-millisecond video response time are far from impressive. It, however, outdoes the LT1421, which tops out at 1,366 by 768 resolution. Like other USB displays, it lacks touch control.
Setting up the AOC screen is the easy part. You’ll need to load the DisplayLink software that comes on a CD once and then restart the host computer. There’re software versions for Macs and PCs from Windows XP to 8.1, but lacks the ability to connect with an Android or iPad tablet as well as work with any of the major wireless video specs, like WiDi, Miracast or Air Play.
After plugging the included micro-USB 3.0 cable into the back of the screen, you need to plug the two USB plugs on the other end into the host system. It requires a USB 3.0 and a USB 2.0 port. In other words, it will take up most, if not all, of the USB ports on the typical notebook and is impossible to use with a tablet unless you have a USB hub handy.
As the display starts up, the E1759FWU blanks the host’s screen and then in a second or two, the image is displayed on the AOC screen. It automatically sets the right resolution and can be used to mirror or extend the base screen, but the E1759FWU’s adjustments are minimal to say the least. You can change the brightness and contrast, but there isn’t even a power switch. The screen lacks speakers.
The USB screen’s black plastic case weighs just 2.8-pounds and comes with a padded cover, making it perfect for grab and go lessons or even teaching outside on a warm day. On the other hand, the E1759FWU has one of the best stands in the business. Its pull-out easel leg makes for a sturdy base extends up to 10.5-inches in the back. You can tilt the screen from a nearly vertical angle to 30-degrees
It can be set up horizontally or vertically. The magic happens when you change its orientation from landscape to portrait mode (or vice versa) because the screen’s image automatically rotates to accommodate the new view of the world. If you want to, the display can be attached to a wall- or table bracket with its 100-millimeter VESA mounting screw holes.
All told, the image appears a little dull and the display puts out 163 candelas per square meter of brightness, or about one-third off of its specification. Its colors look accurate but some appear to be washed out and grayscale images have a blue cast to them.
It’s a power-miser that consumes less than 10-watts. That means that it can be used with its host computer running on battery power. This and the fact that the screen comes with a 3-year warranty make it a powerful screen for schools.
+ USB Powered
+ Quick Setup
+ Pull-out stand
+ Landscape or portrait display with automatic image orientation
+ 3-year warranty
+ Light weight and low power use
- Requires two USB ports
- Not full HD
- No wireless connections
At $3,000, Vizio’s P702ui-b3 ultra HD TV/monitor is too expensive for every classroom but it can fit perfectly in a lecture hall, graphics classroom or student lounge. That’s because it measures 70-inches from corner to corner and is among the most detailed screens available with 3,840 by 2,160 resolution. Its 72 active zones can be automatically dimmed or brightened to suit the material and there's a high-performance spatial scaling engine for when displaying less-than Ultra HD material. The best part is that the screen has WiFi built in as well as apps for directly playing YouTube videos, NetFlix and other online services. Vizio makes a 60-inch version that can be had for about $1,700.
Regardless of whether you have a cheap 17-inch screen or a professional 27-inch monitor, they all do one thing that isn’t good for you and your eyes. They all give off a lot of ultraviolet rays that can cause macular degeneration and other ocular damage over time. AOC’s Anti-Blue Light technology will be used on the company’s upcoming 76V family of monitors, which blocks 90 percent of the most damaging light without affecting image quality or the screen’s color balance. Look for the monitors later this year.
The latest ActivBoard Touch interactive whiteboards from Promethean have been made for classroom collaboration with support up to six individual touch inputs. This makes it great for group work or having several students doing a problem independently on the board. Available in 78- and 88-inch models, the boards work with Windows, Mac and Linux computers and work with a stylus or fingers. You can use it to teach with PrometheanPlanet’s library of 80,000 educational resources, there’s an optional sound bar and you can order the screen with the company’s marker-friendly Dry-erase surface option.
What does an interactive projector one better? A large screen touch monitor, like the new MimioDisplays. They all can show high definition material, come in 55-, 65-, 70- or 84-inch sizes and have low glare glass coatings so everyone gets a good view of the action. The monitors allow several students to collaborate on screen with finger motions, digital pens and taps.
When HD monitors just aren’t sharp enough, it’s time to consider moving up to 4K ultra-high definition displays. The Asus PB287Q not only fills the 28-inch screen with 3,840 by 2,160 resolution and has the ability to show more than 1 billion individual colors, but the screen has a superfast 1 millisecond response time. It can be connected via a DisplayPort or HDMI and the screen can be moved up and down, twisted side-to-side or pivoted. The display costs $650.