Sticky film that turns windows into display screens
Unless it already exists, this would be great for shop advertising displays or even just to block out light from windows in the home – plug it into an iPad and see/show what you want without having to buy a tv or advertisement display screen.
Wow, this came out last year, will tell a shop owner I know about it, he would love one if he could connect it to a folder full of pics and images.
I am not sure if this idea exists in the form of a product you could buy but there is already a projector version, but yep, you would need the projector to make it work in your own shop,