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High definition projection screen

A projection screen, high-definition technology, used in optics, instruments, projection devices, etc., can solve problems such as high performance indicators and affect the quality of projection screens, and achieve the effect of improving quality, increasing gain, and improving the ability to resist ambient light interference

Inactive Publication Date: 2009-05-27
JIANGSU REDLEAF AUDIO & VISUAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing projection screens cannot take into account these two performance indicators, and can only ensure that one of the performance indicators is higher.
This affects the quality of the entire projection screen

Method used

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  • High definition projection screen

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Embodiment Construction

[0008] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0009] As shown in Figure 1, the high-definition projection screen of the present invention includes: a curtain base made of PET film 1, and the front of PET film 1 is provided with a plurality of strips arranged upright at intervals and made of white microcrystalline material. Microprisms 2, gray microcrystalline material 3 is coated between the adjacent facets of two microprisms 2, so that the end faces of all microprisms 2 and the end faces of gray microcrystalline material 3 form a plane, on which It is coated with a reflective layer 4 of white microcrystalline material.

[0010] The specific manufacturing method of the high-definition projection screen of the present invention is as follows: first, the front of the PET film 1 is subjected to matting treatment, and then the front of the PET film 1 is coated with a white microcrystalline ma...

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Abstract

The invention discloses a high definition projection screen capable of improving the gain and the contrast grade. The high definition projection screen comprises a PET membrane. A plurality of strip-shaped microprisms made of white microcrystal material are arranged vertically and alternately on the front face of the PET membrane; grey microcrystal material is coated on the adjacent edge surfaces of each two microprisms; and reflection layers formed by white microcrystal material are arranged on the surfaces of the microprisms and the grey microcrystal material. The gain is improved through the plurality of strip-shaped microprisms which are formed vertically and alternately on the front face of the PET membrane through photolithography; then the contrast grade is improved through the grey microcrystal light absorption gratings which are evenly coated on the adjacent edge surfaces of each two microprisms; the resistance to the interference of ambient light is also improved through the microcrystal reflection coatings; therefore, the quality of the high definition projection screen is improved in an all-around way.

Description

technical field [0001] The invention relates to a high-definition projection screen that has high requirements on various indicators such as relative brightness, contrast and anti-environmental light interference. Background technique [0002] At present, the projection screens used in the market include glass curtains, white plastic curtains, metal curtains, etc. It is generally used to set a fine glass coating on the curtain base to increase the gain, that is, the relative brightness, but the contrast is average. Therefore, the existing projection screens cannot take into account these two performance indicators, and can only ensure that one of the performance indicators is higher. This affects the quality of the entire projection screen. Contents of the invention [0003] A technical problem to be solved by the present invention is to provide a high-definition projection screen that can simultaneously improve gain and contrast. [0004] In order to solve the above-men...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/60G02B1/10G03B21/604
Inventor 姜国梁
Owner JIANGSU REDLEAF AUDIO & VISUAL EQUIP