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Projection screen and projection system

A projection system and screen technology, applied in the field of projection, can solve problems such as inability to play at the same time

Inactive Publication Date: 2009-06-03
东莞澳星视听器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cannot play video, sound and picture at the same time

Method used

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

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] A preferred embodiment of a projection screen and a projection system of the present invention will now be described with reference to the accompanying drawings.

[0028] refer to Figure 1-3 , the projection screen in this embodiment includes a screen 1 , a reel 2 , a motor 3 , a housing 4 , a mounting frame 5 , a sound 6 , and a controller 90 . The reel 2 is connected with the curtain 1, and the reel 2 is used to unfold or fold the curtain 1. The motor shaft of the motor 3 is connected with the reel 2, and the motor 3 is used to drive the reel 2 to rotate to realize the unfolding or folding of the curtain 1.

[0029] A receiving groove 41 is formed on the housing 4 , and an opening 411 is opened below the receiving groove 41 for the curtain 1 to be freely stowed. The motor 3 is fixedly installed in the receiving groove 41 of the casing 4 . The installation frame 5 is arranged on the rear side of the casing 4, and the installation frame 5 is used to hang the entire ...

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PUM

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Abstract

The invention relates to a projection screen and a projection system, wherein, the projection screen comprises a curtain, a shell, a scroll and a sound system; an accepting trough with openings are formed on the shell, the scroll is pivoted in the accepting trough of the shell for rolling the curtain, and the sound system is arranged on the shell. The projection system comprises the projection screen, an audio and video signal generator and a projector, wherein, the audio and video signal generator is respectively connected with the projector and the sound system and sends audio signals to the sound system and video signals to the projector, the projector is used for converting received video signals to images to be projected on the projection screen. In the invention, by installing the sound system on the shell, the projection images can be displayed on the screen and the sound can be played simultaneously, therefore, the projection screen has the beneficial effect of playing pictures, sound and images simultaneously.

Description

technical field [0001] The invention relates to the field of projection, in particular to a projection screen and a projection system capable of simultaneously playing video, audio and pictures. Background technique [0002] Projection screens are widely used in advertising, teaching, publicity, literature and art and other industries, and cooperate with projectors for various video demonstrations, which play a great role in information dissemination. [0003] At present, there are two main types of projection screens that are more common, one is the hand-pull screen, which is rolled back to the screen by the force of a return spring; the other is the electric screen, which is unfolded and retracted by electric power Cloth; Of course, there are some less common screens in other forms, such as floor screens, bracket screens, table screens, etc. [0004] However, among the above-mentioned various screens, only static and dynamic image frames can be displayed. Video, audio an...

Claims

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Application Information

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IPC IPC(8): G03B21/58G03B21/00G08C17/02
Inventor 赵文发
Owner 东莞澳星视听器材有限公司
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