That's going to be amazing for VR.

No need for cameras outside to report what's going on to you inside, you can see through.

HUD (E.G: for cars), augmented reality on phones, monitoring for things like patients, babies...

If they manage to deal with the ambient luminosity problem, it can even change the architecture of your room. No more big screens, just windows letting light in, that you can switch to displays when you like.

Even for class room it's better: students will be visible behind their screens to the teacher.