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Title:
PROJECTION SCREEN
Document Type and Number:
WIPO Patent Application WO/2022/190804
Kind Code:
A1
Abstract:
The present invention addresses the problem of preventing, in a projection screen in which a piezoelectric acoustic film is adhered to the rear surface-side, audio output at the rear surface-side from wrapping around to the projection surface-side. The problem is solved by having a screen body, a piezoelectric acoustic film adhered to the surface on the reverse side of the video projection surface of the screen body, and a sound-insulating sheet that is provided so as to cover the surface on the reverse side of the projection surface of the screen body.

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Inventors:
KAGAWA YUSUKE (JP)
ASHIKAWA TERUO (JP)
Application Number:
PCT/JP2022/006316
Publication Date:
September 15, 2022
Filing Date:
February 17, 2022
Export Citation:
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Assignee:
FUJIFILM CORP (JP)
International Classes:
G03B21/56; H04R1/28; G10K11/16; H04R5/02; H04R7/04; H04R17/00
Domestic Patent References:
WO2014157351A12014-10-02
Foreign References:
CN110850671A2020-02-28
CN211506161U2020-09-15
JP2007295282A2007-11-08
JP2019040095A2019-03-14
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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