Title:
IN-AIR INPUT DEVICE, IN-AIR INPUT DISPLAY DEVICE, AND HOLOGRAM SHEET
Document Type and Number:
WIPO Patent Application WO/2022/249947
Kind Code:
A1
Abstract:
[Problem] To easily install, in an existing display device, an in-air input device that allows a user to recognize a position which can be detected by a non-contact type position detection sensor. [Solution] An in-air input device 20 is provided with a light source 31, a hologram sheet 40, and a position detection sensor 21. The hologram sheet 40 forms, at an image formation position 38, an image recorded by light from the light source 31. The position detection sensor 21 has sensitivity at a position corresponding to the image formation position 38. A position 21s at which the position detection sensor 21 has sensitivity is spaced apart from the hologram sheet 40. The light source 31 is positioned on the same side as the image formation position 38 with the hologram sheet 40 as a reference. A distance D1 between the image formation position 38 and the hologram sheet 40 is not less than 10 mm.
Inventors:
YAMAUCHI TSUYOSHI (JP)
YASUDA TOMOKI (JP)
YASUDA TOMOKI (JP)
Application Number:
PCT/JP2022/020651
Publication Date:
December 01, 2022
Filing Date:
May 18, 2022
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
G06F3/041; G03H1/08; G03H1/22; G09F9/00
Domestic Patent References:
| WO2019156249A1 | 2019-08-15 |
Foreign References:
| JP2011013545A | 2011-01-20 | |||
| JP2019207574A | 2019-12-05 |
Other References:
OKOSHI, MIKI: "Holograms created from CG images - An application for museum exhibitions", IPSJ SIG TECHNICAL REPORT, INFORMATION PROCESSING SOCIETY OF JAPAN, JP, vol. 91, no. 104(1991-CH-012), 29 November 1991 (1991-11-29), JP, pages 17 - 24, XP009541411
ANONYMOUS: "Developed "DNP Non-Contact Holo Touch Panel" that can be retrofitted to existing equipment", DAI NIPPON PRINTING CO., LTD., 6 January 2021 (2021-01-06), XP093008529, Retrieved from the Internet [retrieved on 20221215]
ANONYMOUS: "Developed "DNP Non-Contact Holo Touch Panel" that can be retrofitted to existing equipment", DAI NIPPON PRINTING CO., LTD., 6 January 2021 (2021-01-06), XP093008529, Retrieved from the Internet
Attorney, Agent or Firm:
MIYAJIMA Manabu et al. (JP)
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