Title:
PROJECTION SCREEN AND PROJECTION DISPLAY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/178982
Kind Code:
A1
Abstract:
A projection screen and a projection display system. The projection screen comprises an optical screen (1), a flexible connection portion (2), a screen frame (3) disposed at the side of the flexible connection portion (2) distant from the optical screen (1), and an elastic connection member (4). A first connection portion of the flexible connection portion (2) is fixedly connected to the optical screen (1). A second connection portion of the flexible connection portion (2) is connected to a first end of the elastic connection member (4). A second end of the elastic connection member (4) is connected to the screen frame (3). The elastic connection member (4) is configured to stretch the optical screen (1) to a flat state by means of the flexible connection portion (2). According to the projection screen, good flatness can be maintained while fixing the optical screen (1). The projection display system comprises a projection device and the projection screen. The projection device is used for projecting a projection image to the optical screen (1) of the projection screen.
Inventors:
LI JIANJUN (CN)
LU WENSHENG (CN)
YANG CHANGMING (CN)
LU WENSHENG (CN)
YANG CHANGMING (CN)
Application Number:
PCT/CN2018/094512
Publication Date:
September 26, 2019
Filing Date:
July 04, 2018
Export Citation:
Assignee:
HISENSE LASER DISPLAY CO LTD (CN)
International Classes:
G03B21/56
Foreign References:
| CN205608375U | 2016-09-28 | |||
| CN205608375U | 2016-09-28 | |||
| CN201134007Y | 2008-10-15 | |||
| CN205281106U | 2016-06-01 | |||
| CN204903939U | 2015-12-23 | |||
| CN202837795U | 2013-03-27 | |||
| CN206541120U | 2017-10-03 | |||
| CN206209277U | 2017-05-31 | |||
| CN203941373U | 2014-11-12 | |||
| US6501599B1 | 2002-12-31 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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