This display, smaller than a dime, has 600×480 resolution, ensuring that when our species branches into the elfoid form we will be able to create an iPod Touch for our miniature brethren. You could also chain a number of these together to create a 1080p smaller than a postage stamp, potentially creating a 2048 x 2048 pixel display the size of a matchbook.
Exciting, if currently impractical.
Hey, they could make postage stamps that are reusable but with different currency values. Such as $0.01 and $0.05 stamps, they could have the picture change on the screen to match whatever the person paid to have the stamp changed to.
Great idea, but there still needs to be a processor, energy source, etc etc. So unless they make special reusable envelopes, I don’t fore see that happening.