My phone has a setting for that.
And it's possible to do with a webcam + monitor: https://askubuntu.com/questions/23593/use-webcam-to-sense-li...
There's probably some software for that.
I think I saw a TV a while back that did, but that's 1 out of the 10 billion models out there.
I would never buy a TV with that.
Instead I much prefer to control it manually via the mouse scroll wheel and DDCI, that way I can adjusted exactly to my liking every moment of the day.
On phones this feature makes sense because as you walk and move around the ambient brightness shining on the screen changes rapidly but on a indoor PC monitor in a room/office, the ambient light is relatively stable because you can control it via light switches or window blinds, so manual control is fine.