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Reflective lateral projection screen and projection system

A projection screen and reflective technology, which is applied in the field of reflective side projection screens and projection systems, can solve the problems of left-right asymmetry of horizontal viewing angle, deviation of brightness uniformity, low image contrast, etc., and achieve high brightness gain and high contrast , good viewing angle effect

Inactive Publication Date: 2021-01-22
CHENGDU FSCREEN SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a reflective side projection screen and projection system, which can improve the problems of low brightness gain, deviation of brightness uniformity, left-right asymmetry of horizontal viewing angle and low image contrast of existing projection screens and projection systems

Method used

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  • Reflective lateral projection screen and projection system
  • Reflective lateral projection screen and projection system
  • Reflective lateral projection screen and projection system

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Experimental program
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Embodiment

[0056] A reflective side projection screen such as image 3 or Figure 4 As shown, it includes a reflective functional layer with the same size as the projection surface of the projection screen; wherein, the reflective functional layer includes a reflective material layer 3 and a concentric circle microstructure layer 1;

[0057] In this embodiment, the concentric circle microstructure layer 1 is obtained by cutting out a part of a rectangular area from a complete concentric circle microstructure array. Among them, the concentric circle microstructure array includes several microstructure units 2 with the same center and successively increasing radii, and the intercepted concentric circle microstructure layer 1 satisfies:

[0058]

[0059]

[0060] Among them, R 1 is the maximum radius of the microstructure unit 2 in the concentric circle microstructure layer 1 from the center of the circle; R 2 Be the minimum radius of the microstructure unit 2 in the concentric cir...

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Abstract

The invention discloses a reflection type lateral projection screen and a projection system, the projection screen comprises a reflection function layer with the same size as the projection surface ofthe projection screen, and the reflection function layer comprises a concentric circle microstructure layer and a reflection material layer which are sequentially arranged from outside to inside along the thickness direction of the projection screen; wherein the concentric circle microstructure layer is obtained by intercepting a part of rectangular area from a complete concentric circle microstructure array, and the circle center of a microstructure unit in the concentric circle microstructure layer deviates from the perpendicular bisector of the projection screen. The invention aims to provide a reflective lateral projection screen and a projection system, and solves the problems of low brightness gain, brightness uniformity offset, horizontal view angle bilateral asymmetry and low image contrast of the existing projection screen and projection system.

Description

technical field [0001] The invention relates to the technical field of optical projection display, in particular to a reflective lateral projection screen and a projection system. Background technique [0002] Projection display is a display technology that uses optical elements to enlarge the outline of image information and project it onto the screen. The light that carries the image information enters the human eye through transmission and reflection on the screen to obtain image information. Projection display technology is currently widely used in homes, offices, schools, and entertainment venues. According to different working methods, projectors mainly include CRT, LCD, and DLP. Portability, miniaturization, entertainment, and practicality make it closer to the development direction of life and entertainment, thereby promoting projection products to become home appliances, and gradually become the protagonist of watching movies in the living room or bedroom. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/60
CPCG03B21/60
Inventor 张超陈智超胡强
Owner CHENGDU FSCREEN SCI TECH
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