Use iPhone as TV

[carnageX]

I use android on Note, and I can mirror it on my TV (Samsung Smart TV)
I don't know if it is possible on iPhone, but Google for any mirroring apps between iOS and TV

Again, OP wants to go the other way. Use his device as the screen for a gaming console, not display his device's screen on a TV.

 

[PP Mguire]

There's an adapter for an oscilloscope that works with an app displaying info on the iPad. It could be done, but nobody has made anything to do it.

On the flipside, iOS does have apps to do miracast so you're not limited to Airplay. Never tried it though.

 

[AnythingNews]

I believe it is possible if you purchase a lighting hdmi connector.

 

[Area-1255]

Why the hell would one even want to use their iPhone "as a TV"? Seems to defeat the purpose of having a game console, and a controller. You enjoy games on a big screen because that allows one to immerse themselves in 3D worlds, and if you are talking classic games then there are several emulators for both iPhone/Android, of which the better option would still be to use a damn TV, or at least a computer.