Title:
VIDEO DISPLAY DEVICE AND VIDEO DISPLAY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/017140
Kind Code:
A1
Abstract:
Through the present invention, a light-guiding-plate-type video display device in which an entire image is visible to a user is reduced in size. This video display device is characterized by being provided with a video projection part for causing light to scan and generating video light having a predetermined angle of view, a light-guiding plate for causing the video light incident from a light input part to propagate inside the light-guide plate and outputting the video light from a light output part, and a video light reproduction part for reproducing a light beam of the video light, the video light reproduction part reproducing two or more video lights having substantially the same angle of view as the incident video light.
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Inventors:
UKAI RYUJI (JP)
MURATA SEIJI (JP)
NAKAMURA TOSHITERU (JP)
OOUCHI SATOSHI (JP)
MURATA SEIJI (JP)
NAKAMURA TOSHITERU (JP)
OOUCHI SATOSHI (JP)
Application Number:
PCT/JP2019/019534
Publication Date:
January 23, 2020
Filing Date:
May 16, 2019
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G02B26/10; G02B27/02; H04N5/74
Foreign References:
| JP2016085426A | 2016-05-19 | |||
| JP2018510379A | 2018-04-12 | |||
| JP2003536102A | 2003-12-02 | |||
| JP2010164988A | 2010-07-29 | |||
| JP2006501499A | 2006-01-12 | |||
| US8233204B1 | 2012-07-31 |
Attorney, Agent or Firm:
SHOYO INTELLECTUAL PROPERTY FIRM (JP)
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