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Micro-tower shape soft screen of rear projection wove

A tower-type screen technology, applied in the field of micro-tower cloth-pattern rear-projection soft screens, can solve the problems of high production cost, complex production process, and inability to fold, and achieve convenient packaging and transportation, simple production process, and increased viewing angle Effect

Inactive Publication Date: 2005-03-30
魏长利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Various types of rear projection screens are provided in the prior art, such as Fresnel lens type rear projection screens, frosted glass type rear projection screens, bead type rear projection screens, etc. The production process is complicated and consists of three layers. The first layer It is a Fresnel lens, the second layer is the light guide layer, and the third layer is the imaging layer. It is pressed by a large mold at one time. The production cost is high and the price is expensive. If a projection device cannot be spliced ​​and used, the use size is limited. Made of hard plastic, it cannot be folded, and it is inconvenient to transport

Method used

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  • Micro-tower shape soft screen of rear projection wove
  • Micro-tower shape soft screen of rear projection wove
  • Micro-tower shape soft screen of rear projection wove

Examples

Experimental program
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Embodiment Construction

[0016] The micro-tower cloth rear-projection soft screen uses polyvinyl chloride as raw material, extruded by an extruder to form a base material with a thickness of 2 mm, and then rolled by a mold to form a rear-projection soft screen with a micro-tower-shaped body 3 on the surface 1. The thickness of the rear projection soft screen 1 is 2mm, and the distance between the two micro-towers 3 is 0.3mm to 0.6mm. The surface of the micro-tower body 3 is emulsified with a chemical emulsifier containing tetrachloroethylene, so that the surface of the micro-tower body 3 forms a layer of light-absorbing and opaque translucent surface, and then cleaned and dried to form Micro-pyramid textured rear-projection soft screen.

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Abstract

The invention is characterized by that the back surface of said rear projection flexible screen is planar surface, and the front surface of said rear projection flexible screen is formed from uniformly-distributed microtower type bodise. The method for producing said microtower type cloth grain rear projection flexible screen includes the following steps: adopting plastics and utilizing extrusion process to make the plastics into a base material whose thickness is 2 mm, using mould to roll said base material to form micro tower type body surface, using chemical emulsifer containing tetrafluoroethylene to make the microtower body surface undergo the process of emulsification treatment so as to form a layer of semitransparent emulsified layer which can absorb light and is light-proof on the microtower type body surface. It can make visual andle of audience be enlarged and can make the colour loss of said projection equipment be small.

Description

technical field [0001] The invention relates to a rear-projection screen using plastic as a light-transmitting material, and more specifically, the invention relates to a micro-pyramid cloth-pattern rear-projection soft screen. Background technique [0002] Various types of rear projection screens are provided in the prior art, such as Fresnel lens type rear projection screens, frosted glass type rear projection screens, bead type rear projection screens, etc. The production process is complicated and consists of three layers. The first layer It is a Fresnel lens, the second layer is the light guide layer, and the third layer is the imaging layer. It is pressed by a large mold at one time. The production cost is high and the price is expensive. If a projection device cannot be spliced ​​and used, the use size is limited. Made of hard plastic, it cannot be folded and it is inconvenient to transport. Contents of the invention [0003] The technical problem to be solved by t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/58
Inventor 魏长利
Owner 魏长利