At South Korea's Samsung Advanced Institute of Technology, researchers invented a method for creating a thin holographic video display that may eventually enable 4K three-dimensional videos on mobile phones.
The display has a special backlight with a beam deflector that can tilt the angles of coherent light beams from laser diodes, expanding the viewing angle 30-fold without increasing the number of pixels required.
The Samsung researchers also used a slim geometric phase lens to gather scattered light from the pixels, shrinking the optical components' thickness to just 1 centimeter.
The display’s single-chip holographic video processor can perform about 140 billion operations per second to generate 4K holographic color images at a speed of 30 frames per second.
From IEEE Spectrum
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