Here's an interesting concept designed by Lenovo's in-house industrial design team: A laptop with no screen—but a built-in projector:
"MOZI is a smart notebook that displays the image by projection with a low ratio of blue light. It consists of the computer unit with a fully extendable keyboard and a separate screen onto which the content is projected. Alternatively, another suitable surface, such as a wall, can be used as projection area. At the end of use, the keyboard is pushed into the computer unit where it is safely stored thanks to magnets."
That's the only image available; this is most certainly the design team having a bit of fun.