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Projection screen and laser projection system

A technology of projection screen and exciter, which is applied in the field of laser projection, can solve problems such as machine vibration and poor sound effect, and achieve the effects of reducing volume, improving sound effect, and reducing amplitude

Pending Publication Date: 2022-02-25
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, in current projection screens integrated with sound-generating components, both ends of the cover plate 03 in the projection screen need to be fixedly connected to the frame body 02, and the exciter 04 needs to be fixed between the cover plate 03 and the sound-generating plate 012 to form a within the limited space of
Therefore, when the exciter 04 vibrates at a high frequency, the cover plate 03 is subjected to a large force exerted by the exciter 04, which causes the phenomenon of mechanical vibration of the cover plate 03 to be more obvious, and the cover plate 03 in the state of mechanical vibration is in contact with The connection position of the frame body 02 is very prone to collisions and noises, resulting in poor sound effects of the sound emitted by the projection screen

Method used

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  • Projection screen and laser projection system
  • Projection screen and laser projection system
  • Projection screen and laser projection system

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Embodiment Construction

[0028] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0029] Please refer to Figure 4 and Figure 5 , Figure 4 A schematic structural diagram of a projection screen provided in an embodiment of the present application, Figure 5 yes Figure 4 An exploded view of the projection screen shown. The projection screen 000 may include:

[0030] Sound screen 100 , frame body 200 , cover plate 300 and exciter 400 .

[0031] The frame body 200 can be connected with the edge of the sound emitting screen 100 . For example, the frame body 200 can generally be a ring-shaped frame body matching the shape of the sound-generating screen 100 , so that the frame body 200 can surround the sound-generating screen 100 and be connected to the edge of the sound-generating screen 100 . For example,...

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Abstract

The invention discloses a projection screen and a laser projection system, and belongs to the technical field of laser projection. The projection screen comprises a sound production screen, a frame body, a cover plate and an exciter. The cover plate is strip-shaped, the first end of the cover plate can be connected with the frame body, the second end of the cover plate is not connected with the frame body, and the exciter is only connected with one of the sounding screen and the cover plate, so the exciter is prevented from being fixed in a limited space formed between the cover plate and the sounding screen. Therefore, when the exciter vibrates in a high-frequency mode in the sound production process of the projection screen, the acting force applied by the exciter to the cover plate is small, the amplitude of the machine vibration phenomenon of the cover plate is effectively reduced, the volume of noise occurring at the connecting position of the cover plate and the frame body is further reduced, and the sound effect of sound produced by the projection screen is improved.

Description

technical field [0001] The present application relates to the technical field of laser projection, in particular to a projection screen and a laser projection system. Background technique [0002] The laser projection system includes a projection screen and laser projection equipment. The laser projection equipment can project pictures on the projection screen to realize functions such as video playback. [0003] Currently, it is possible to integrate the sound-generating components of a laser projection system into the projection screen. For example, please refer to figure 1 , figure 1 It is a top view of a projection screen provided by related technologies, figure 2 yes figure 1 An exploded view of the projection screen shown. The projection screen may include: a sounding screen 01 , a frame body 02 , a cover plate 03 , an exciter 04 and a shock absorbing frame 05 . The sound screen 01 may include: an optical screen 011 , a sound board 012 , and a screen adhesive la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31H04R1/20H04R1/28
CPCH04N9/3161H04R1/20H04R1/28H04R2201/00
Inventor 邢哲戴洁魏伟达徐虹哲崔雷
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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