Samsung are reported to be creating a fully transparent phone.
The patent was filed in January this year, the details of
the technology are available and it can also be used for TVs,
monitors, laptops, and so on.

“This display, in specific, is equipped with a transparent luminous display panel, through which light can shine. Therefore, the content can be displayed on it, and yet the light goes through it.

This display can be both flat and flexible, while a rollable display can also be created out of it, it seems. Patent sketches basically showed a modern-looking smartphone, which Letsgodigital recreated in the provided renders.”
Quote from Android Headlines