A rear projection light transmission projection screen and a projection system

A technology of projection screen and rear projection, which is applied in the field of projection display, can solve problems such as lack of a good solution, achieve the effect of perfect integration, simplified structure, and solve the demand for large-area foreground display

Active Publication Date: 2017-11-07
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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  • A rear projection light transmission projection screen and a projection system
  • A rear projection light transmission projection screen and a projection system
  • A rear projection light transmission projection screen and a projection system

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no. 1 example

[0043] Please refer to figure 1 This embodiment provides a rear-projection light-transmitting projection screen 1000, which includes a screen substrate 100. A plurality of solid imaging strips 200 are arranged on one side surface of the screen substrate 100 at intervals. The solid imaging strips 200 and The adjacent side slope of the screen substrate is coated with a reflective layer, the solid imaging strip 200 and the adjacent side slope of the screen substrate 100 are coated with a reflective layer 300, on the screen substrate 100 A light-transmitting area 400 is provided in the spaced area between the plurality of solid imaging strips 200.

[0044] When the rear projection translucent 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 passes through the solid imaging strip 200. The refraction of the solid imaging...

no. 2 example

[0067] Please refer to Picture 12 In this embodiment, a projection system 2000 is provided, which includes the rear projection transparent projection screen 1000 and the projector 500 provided in the above first embodiment. The projector 500 is arranged on the side of the screen substrate 100 of the rear projection transparent projection screen 1000 where the solid imaging strip 200 is arranged. In this embodiment, the projector 500 may be an off-axis short throw projector 500.

[0068] In this embodiment, on the one hand, the projection light emitted by the projector 500 arranged on the back side of the screen substrate 100 is incident on the solid imaging strip 200, and is incident on the solid imaging strip 200 through the refraction of the solid imaging strip 200. The reflective layer 300 is reflected and penetrates the screen substrate 100, exits in a direction away from the screen substrate 100, and finally reaches the observer's eyes; on the other hand, the background li...

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Abstract

The invention provides a rear projection light transmission projection screen and a projection system relating to the technical field of projection display. The rear projection light transmission projection screen comprises screen base materials; one side surface of the screen base materials is provided with a plurality of solid imaging strips; and a side adjacent to the screen base materials of each solid imaging strip is coated with a reflective layer; and the spacing regions between the plurality of the solid imaging strips on the screen based materials are provided with light transmission regions. Compared with the prior art, according to the projection screen provided by the invention, the screen base materials are provided with an imaging region composed of the solid imaging strips and the reflective layers; the reflective layers present a projected image projected from the portion behind the screen in front of the screen so as to enable a viewer to see both the projected image projected from the screen imaging regions and the scenes behind the screen through the light transmission regions distributed in the screen; two paths of light do not interfere with each other; perfect fusion of image information display is realized; and dual visual enjoyment is provided for the viewers.

Description

Technical field [0001] The present invention relates to the field of projection display technology, in particular to a rear projection transparent projection screen and a projection system. Background technique [0002] Currently, 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 side o...

Claims

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Application Information

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IPC IPC(8): G03B21/62
CPCG03B21/62Y02D10/00
Inventor 张益民
Owner CHENGDU FSCREEN SCI TECH
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