Its CNN, how is that fake? Besides if you actually read the article is says that there is a camera that takes a picture of what is behind him and a small projector, all on the inside of the coat, shows it on the front. The catch is that the projection doesn't show on the coat unless you look through a certain lense. This could be because of reflection purposes. If you go to CNN you can find the article if you think the link is a hoax.

BTW, it was just posted today at CNN so wherever you saw it at probably wasnt a real news site.