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Patent Searching and Data


Title:
REFLECTIVE SCREEN AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/017591
Kind Code:
A1
Abstract:
Provided are a reflective screen and an image display device which has a high degree of freedom of a relative position between the reflective screen and an image source and can display a good image. This reflective screen 10 reflects a part of image light beam projected from an image source LS, to display an image. The reflective screen 10 is provided with: a first optical shape layer 12 which has optical transparency and has a plurality of unit optical shapes 121 arranged on a rear surface thereof; and a reflective layer 13 which is formed in at least some of the unit optical shapes 121 and by which a part of incident light is reflected and at least the other part of the incident light is transmitted, wherein a light diffusing action in the arrangement direction of the unit optical shapes 121 is larger than a light diffusing action in a direction perpendicular to the arrangement direction.

Inventors:
GOTO MASAHIRO (JP)
SEKIGUCHI HIROSHI (JP)
KANBARA KUMIKO (JP)
KAWASHIMA TOMOYA (JP)
Application Number:
PCT/JP2019/028274
Publication Date:
January 23, 2020
Filing Date:
July 18, 2019
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
G03B21/60; G02B3/08; G02B5/02; G02B5/08; G03B21/00; G03B21/62; H04N5/74
Domestic Patent References:
WO2017094581A12017-06-08
Foreign References:
JP2017211454A2017-11-30
JP2016200783A2016-12-01
JP2004198931A2004-07-15
JP2014095771A2014-05-22
JP2017090617A2017-05-25
US20140036359A12014-02-06
JP2015524079A2015-08-20
JP2016080787A2016-05-16
JP2002090513A2002-03-27
JP2005107011A2005-04-21
JPH09114003A1997-05-02
JP2017187810A2017-10-12
Other References:
See also references of EP 3825765A4
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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