You can see an image displayed using pico projector below.
35 inch image
Inorder to get good quality this should be projected at the dark room. The rechargeable batteries will provide 60 minutes power on a full charge. It would produce upto 50″ image. The size of it is 105mm x 56mm x 20mm and weighs just only 126g.
It’s very easy to carry in your pocket. It is available for $119.99