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Rear projection subway multimedia system

A multimedia system and subway technology, applied in the field of projection, can solve the problem of inability to realize passenger advertisements, etc., and achieve the effect of improving the fixed effect, ensuring the induction accuracy, and preventing failures.

Inactive Publication Date: 2017-11-17
上海悉德信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the screen doors on the subway platform have not been effectively used for advertising, and it is impossible to realize the advertising of passengers while waiting for the subway train

Method used

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  • Rear projection subway multimedia system
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  • Rear projection subway multimedia system

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Embodiment Construction

[0062] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific diagrams.

[0063] see figure 1 , figure 2 , image 3 , a rear-projection subway multimedia system, including a projector 2 and a projection screen, and a screen door body 5, the rear side of the screen door body 5 is covered with a liquid crystal dimming film 1, and the liquid crystal dimming film 1 is used as a projection Screen; the rear side of the liquid crystal dimming film 1 is covered with a protective layer 6, and the projector 2 is installed behind the projection screen. The projector 2 is a telephoto projector, and the projection direction of the projector 2 is toward the projection screen. The present invention is provided with liquid crystal dimming film 1 on the screen door body, and then is convenient to realize the playing of projected picture...

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Abstract

The invention relates to the technical field of projection, and relates to a rear projection subway multimedia system. The rear projection subway multimedia system comprises a projector and a projection screen, and also comprises a shield door body, the rear side of the shield door body is covered by a liquid crystal light modulation film, and the liquid crystal light modulation film serves as the projection screen. The rear side of the liquid crystal light modulation film is covered by a protective layer, the projector is installed behind the projection screen, the projector is a long-focus projector, and the projection direction of the projector points to the projection screen. According to the invention, by arranging the liquid crystal light modulation film on the shield door body, the projection picture can be played conveniently, and the advertising effect is achieved; by arranging the protective layer, the subway train can be prevented from damaging the liquid crystal light modulation film, and the liquid crystal light modulation film can be protected.

Description

technical field [0001] The invention relates to the technical field of projection, in particular to a projection system for a screen door. Background technique [0002] The subway is a common means of transportation for people in contemporary cities. Due to the development and convenience of subway transportation, more and more people will give priority to the subway when traveling. Advertisement on the subway has obvious advantages. Since the subway environment is a relatively closed space, and the process of waiting for the subway train is very boring, passengers' attention to advertisements will increase significantly. [0003] At present, the screen door of the subway platform has not been effectively utilized for advertising at present, and it is impossible to realize the advertising of passengers when waiting for the subway train. Contents of the invention [0004] The object of the present invention is to provide a rear-projection subway multimedia system to solve ...

Claims

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Application Information

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IPC IPC(8): G09F19/18G03B21/60G03B21/14G02F1/13E06B7/28
CPCG09F19/18E06B7/28G02F1/13G03B21/14G03B21/60
Inventor 王仕龙周岸迪
Owner 上海悉德信息科技有限公司
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