The ClearView Audio Clio features a 1mm-thin acrylic glass transducer that practically disappears at many angles.
The company's patent will hide portions of a device's display until it's actually needed.
Polytron shows off a see-through smartphone, but the limitations of modern technology still stand in the way.
A new image sensor could make transparent user interfaces a reality. The secret lies in a flexible, inexpensive polymer sheet that can capture photos.