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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Crosstalk reduction in tabletop multiview display with fog screen

  • Jeon, Hosung (School of Electronic and Electrical Engineering, Kyungpook National University) ;
  • Lim, Sungjin (School of Electronic and Electrical Engineering, Kyungpook National University) ;
  • Jung, Minwoo (School of Electronic and Electrical Engineering, Kyungpook National University) ;
  • Yoon, Junghoo (School of Electronic and Electrical Engineering, Kyungpook National University) ;
  • Park, Changhwan (School of Electronic and Electrical Engineering, Kyungpook National University) ;
  • Seok, Junho (School of Electronic and Electrical Engineering, Kyungpook National University) ;
  • Yu, Ji-man (School of Electronic and Electrical Engineering, Kyungpook National University) ;
  • Hahn, Joonku (School of Electronic and Electrical Engineering, Kyungpook National University)
  • Received : 2021.05.18
  • Accepted : 2022.03.15
  • Published : 2022.08.10
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Abstract

Fog screens offer a great advantage to be used as scattering screens in three-dimensional displays. In the absence of a fixed rigid form, fog screens work as screens without any physical obstruction. The density of water droplets can be regulated to adjust the screen's transparency and scattering level. This study proposes a method for crosstalk reduction between adjacent viewing windows by decreasing the divergence of view of the projector, with concentration lenses. By applying the Scheimpflug principle, we also reduce the keystone effect, which occurs when the fog screen is slanted with respect to the optical axis. In this study, we have realized a tabletop multiview fog display without any structures on the table and established that the proposed method is feasible for decreasing crosstalk effectively.

Keywords

Acknowledgement

This work was supported by The Cross-Ministry Giga KOREA project grant funded by the Korea government (MSIT) [GK20D0100, Development of Telecommunications terminal with Digital Holographic Table-top Display].

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