Double-sided viewing light transmission projection screen and projection system

A projection screen and screen technology, applied in the field of projection display, can solve problems such as lack of a good solution, and achieve the effect of solving the needs of large-area display, low cost, and simplified structure

Active Publication Date: 2017-11-03
CHENGDU FSCREEN SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in stage performances, window displays or some special occasions, there are more and more demands to be able to present both the foreground image and the background content at the same time, and the existing realization method is to use transparent liquid crystal display, transparent OLED Display, phantom display or projection holographic screen display, etc., these methods can achieve better display effect, but due to the limitation of its projection principle, there has been no good solution to the demand for high brightness and super large size foreground display screen. plan

Method used

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  • Double-sided viewing light transmission projection screen and projection system
  • Double-sided viewing light transmission projection screen and projection system
  • Double-sided viewing light transmission projection screen and projection system

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Experimental program
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no. 1 example

[0044] Please refer to figure 1 This embodiment provides a double-sided viewing light-transmitting projection screen 1000, which includes a screen substrate 100. A plurality of solid imaging strips 200 are spaced on one side surface of the screen substrate 100. The solid imaging strips 200 The solid imaging strip 200 and the adjacent side slope of the screen substrate 100 are coated with a reflective layer 300, and the solid imaging strips 200 on the screen substrate 100 are mixed with diffusion particles. A light-transmitting area 400 is provided in the interval area of.

[0045] When the double-sided viewing light-transmitting projection screen 1000 in this embodiment displays imaging, the projection light is incident on the solid imaging strip 200 from the side of the screen substrate 100 where the solid imaging strip 200 is provided, and a part of it The projection light is reflected by the solid imaging strip 200 and exits in a direction away from the screen substrate 100; a...

no. 2 example

[0069] Please refer to Picture 12 This embodiment provides a projection system 2000, which includes the double-sided viewing transparent projection screen 1000 and the projector 500 provided in the above-mentioned first embodiment. The projector 500 is arranged on the side of the screen substrate 100 in the double-sided viewing light-transmitting projection screen 1000 where the solid imaging strip 200 is arranged.

[0070] In this embodiment, when the observer stands on the side of the projector 500 and observes the screen, the projection light emitted by the projector 500 is incident on the solid imaging bar 200, and a part of the projection light is reflected and moved away from the The direction of the screen substrate 100 exits and finally reaches the eyes of the observer on the side of the projector 500; while the background light emitted from the scene on the side of the screen where the solid imaging bar 200 is not set is incident on the screen substrate 100, The light-t...

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Abstract

The invention provides a double-sided viewing light transmission projection screen and a projection system, and relates to the field of projection display technologies. The double-sided viewing light transmission projection screen comprises a screen base material. A plurality of solid imaging strips are arranged on the surface of a side of the screen base material at intervals, diffusion particles are doped in the solid imaging strips, a reflecting layer is coated on an oblique plane of the side, which is adjacent to the screen base material, of each solid imaging strip, and interval regions, which are positioned between the multiple solid imaging strips, on the screen base material are provided with light transmission regions. Compared with the prior art, the double-sided viewing light transmission projection screen and the projection system have the advantages that viewers positioned on two sides of the projection screen can see projection images on the screen and can see scenes on the back side of the screen via the light transmission regions distributed on the screen, two paths of light rays do not interfere with each other, image information display can be perfectly fused, and double visual enjoyment can be provided for the viewers.

Description

Technical field [0001] The present invention relates to the technical field of projection display, in particular, to a double-sided viewing transparent projection screen and a projection system. Background technique [0002] At present, projection screens widely used in the field of projection display can generally be classified into reflective and transmissive types. Among them, the reflective type is used for front projection and the transmissive type is used for rear projection. [0003] The reflective projection screen is suitable for situations where the observer and the projector are on the same side. The displayed image is projected by the projector onto the reflective projection screen, and finally reflected in the eyes of the observer. [0004] The transmissive projection screen is suitable for situations where the observer and the projector are on both sides of the projection screen. At this time, the light beam projected on the projection screen by the projector on one ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/62
CPCG03B21/62
Inventor 张益民
Owner CHENGDU FSCREEN SCI TECH
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