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Changing the World through Creative Research

Slim-panel holgraphic video display

Nature Communications

Since its discovery almost 70 years ago, the hologram has been considered the ultimate display. It delivers three-dimensional images without visual side effects. Holographic video has been extensively researched for commercialization, since Benton et al. at MIT Media Lab developed the first holographic video systems in 1990. However, commercially available holographic video displays have not been introduced yet for several reasons: narrow viewing angle, bulky optics and heavy computing power. Here we present an interactive slim-panel holographic video display using a steering-backlight unit and a holographic video processor to solve all above issues. The steering-backlight unit enables to expand the viewing angle by 30 times and its diffractive waveguide architecture makes a slim display form-factor. The holographic video processor computes high quality holograms in real-time on a single-chip. We suggest that the slim-panel holographic display can provide real-looking three-dimensional video in office and household environments.

Nat Commun 11, 5568 (2020)