Current Optics and Photonics

Optical Society of Korea (한국광학회)
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A Wide-field-of-view Table-ornament Display Using Electronic Holography

  • Daerak Heo (School of Electronic and Electrical Engineering, Kyungpook National University) ;
  • Hosung Jeon (School of Electronic and Electrical Engineering, Kyungpook National University) ;
  • Sungjin Lim (School of Electronic and Electrical Engineering, Kyungpook National University) ;
  • Joonku Hahn (School of Electronic and Electrical Engineering, Kyungpook National University)
  • Received : 2022.12.30
  • Accepted : 2023.03.14
  • Published : 2023.04.25
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Abstract

Three-dimensional (3D) displays provide a significant advantage over traditional 2D displays by offering realistic images, and table-style displays in particular are ideal for generating 3D images that appear to float above a table. These systems are based on multiview displays, and are typically operated using temporal or spatial multiplexing methods to expand the viewing zone (VZ). The VZ is an expanded space that results from merging the sub-viewing zones (SVZs) from which an individual view is made. To increase the viewing angle, many SVZs are usually required. In this paper, we propose a table-ornament electronic holographic display that utilizes 3f parabolic mirrors. In holography, the VZ is not simply expanded but synthesized from SVZs to implement continuous motion parallax. Our proposed system is small enough to be applied as a table ornament, in contrast to traditional tabletop displays that are large and not easily portable. By combining multiview and holographic technologies, our system achieves continuous motion parallax. Specifically, our system projects 340 views using a time-multiplexing method over a range of 240 degrees.

Keywords

Acknowledgement

This work was supported by a cross-ministry GigaKorea project (GK18D0100, Development of Telecommunications Terminal with Digital Holographic Table-top Display) grant funded by the Korean government (MSIT).

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