Janus Screen: A Screen with Switchable Projection Surfaces Using Wire Grid Polarizer


In this paper, we present a novel screen system employing polarizers that allow switching of the projection surface to the front, rear, or both sides using only two projectors on one side. In this system, we propose a method that employs two projectors equipped with polarizers and a multi-layered screen comprising an anti-reflective plate, transparent screen, and wire grid polarizer. The multi-layered screen changes whether the projected image is shown on the front or rear side of the screen depending on the polarization direction of the incident light. Hence, the proposed method can project images on the front, rear, or both sides of the screen by projecting images from either or both projectors using polarizers. In addition, the proposed method can be easily deployed by simply attaching multiple optical films. We implement a prototype and confirm that the proposed method can selectively switch the projection surface.

Wataru Yamada
NTT DOCOMO, INC., Tokyo, Japan
Sawa Korogi
NTT DOCOMO, INC., Tokyo, Japan
Keiichi Ochiai
NTT DOCOMO, INC., Tokyo, Japan



会議: CHI 2022

The ACM CHI Conference on Human Factors in Computing Systems (https://chi2022.acm.org/)

セッション: Shape Displays

5 件の発表
2022-05-05 01:15:00
2022-05-05 02:30:00