Two holographic layers (IMAGE) Optica Caption Researchers developed a 3D full-color display method that uses a smartphone screen, rather than a laser, to create holographic images. Shown are their experimental results, in which a continuous transition from the first layer to the second layer is observable. Credit Ryoichi Horisaki, The University of Tokyo Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.