Title:
PROJECTION SCREEN AND PROJECTION SYSTEM COMPRISING PROJECTION SCREEN
Document Type and Number:
WIPO Patent Application WO/2019/218701
Kind Code:
A1
Abstract:
Provided are a projection screen (1) and a projection system comprising the projection screen (1). The projection screen (1) comprises: a screen surface (10), wherein a hanging nail (14) is provided on a rear surface of the screen surface (10) at each side of each of four corners of the screen surface (10); a basic frame (20), the basic frame (20) having a frame shape corresponding to an outer contour of the screen surface (10), and a protrusion (24) being formed in a protruding manner on a front surface, facing the rear surface of the screen surface (10), of the basic frame (20) at the top point of each of the corners of the basic frame (20); and tensioning elements (13), a tensioning element (13) being hung at each of the corners of the screen surface (10) and between each hanging nail (14) and each protrusion (24) so as to tension the screen surface (10) on the basic frame (20). This invention can effectively reduce the requirements for the precision of a manufacturing process and components and the requirements for an assembly process, and can also meet product requirements.
Inventors:
HUANG MIN (CN)
LI YI (CN)
LI YI (CN)
Application Number:
PCT/CN2019/070525
Publication Date:
November 21, 2019
Filing Date:
January 05, 2019
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G03B21/56
Foreign References:
| US20100079860A1 | 2010-04-01 | |||
| CN101035233A | 2007-09-12 | |||
| KR100970676B1 | 2010-07-15 | |||
| CN206479762U | 2017-09-08 | |||
| CN202050490U | 2011-11-23 |
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