Title:
LINE SCREEN SYSTEM FOR OUTDOOR USE WITHOUT PROJECTION SCREEN
Document Type and Number:
WIPO Patent Application WO/2022/092354
Kind Code:
A1
Abstract:
The present invention relates to an image projection screen, in which an afterimage generated by repeating a reciprocating motion of a plurality of lines is used as an image projection screen having no physical image projection screen. The present invention relates to a line screen system for outdoor use without having a projection screen, which minimizes wind resistance, enables large-scale image implementation in an outdoor space, and enables easy installation. The outdoor line screen system comprises: a plurality of threads or strings aligned spaced apart from each other to form an image projection screen; a guide string to which the plurality of threads or strings are connected; a power device for reciprocating the guide string up and down or left and right; and a control unit for controlling the power device, wherein the plurality of threads or strings serve as a projection screen for displaying an image, while reciprocating up and down or left and right. According to this configuration, in outdoor image projection by a beam projector, it is possible to provide a line screen system that enables large-scale image projection outdoors and reduces costs without the wind resistance generated by a physical flat screen and the installation of excessive structures to support the screen.
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Inventors:
RYU JAEHA (KR)
Application Number:
PCT/KR2020/014907
Publication Date:
May 05, 2022
Filing Date:
October 29, 2020
Export Citation:
Assignee:
KYUNGPOOK NAT UNIV IND ACADEMIC COOP FOUND (KR)
International Classes:
G03B21/58; G03B21/56
Foreign References:
| CN110412823A | 2019-11-05 | |||
| KR20160054828A | 2016-05-17 | |||
| KR20190007335A | 2019-01-22 | |||
| KR20160128242A | 2016-11-07 | |||
| KR20160079746A | 2016-07-06 | |||
| JP2010175949A | 2010-08-12 |
Attorney, Agent or Firm:
NAM, Soongho (KR)
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