Most of these use infrared rather than capacitive touch (which would require a separate glass / plastic layer on top of the screen) which I had heard was not as good as regular touch screens and can suffer from interference. However you can get multi-point touch overlays now and the reviews are generally pretty good from what I can see at Amazon.
For more information, please visit our website.
Chengying 55 inch 10 Point Multi-Touch Infrared Touch Frame, ir Touch Panel, Infrared Touch Screen Overlay : Amazon.co.uk: Business, Industry & Science - multiple sizes available, not just 55".
No actual experience with them, though. I guess you could try it out and return it if it&#;s not up to scratch?
IRTOUCH are exported all over the world and different industries with quality first. Our belief is to provide our customers with more and better high value-added products. Let's create a better future together.
We offer a wide range of IR touch frames with touch capabilities up to 32 touch points. Starting with standard sizing from 31.5&#;, our touch frame kits can be manufactured to fit custom aspect ratios, like 32:9 and can cater for large format applications providing touch solutions for displays up to 10m x 3m. We can provide made to measure solutions to fit existing display formats like LED modular systems, that require the same minimal, hassle free set up as our standard infrared touch overlays.
These touch screen overlays are shipped in smaller segments to keep shipping costs to a minimum and the segments are then simply assembled and installed on site connecting to your PC or Media Player via USB HID technology transforming your finger into the mouse!
For more information, please visit infrared touch frames.