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A kind of optical projection screen for display and its preparation method

A technology for optical projection and display, applied in optics, optical components, lenses, etc., can solve the problems that projection screens cannot achieve high luminance gain and wide viewing angle, and achieve high luminance gain and simple process

Active Publication Date: 2017-11-14
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing projection screen cannot achieve high luminance gain and wide viewing angle, the present invention provides an optical projection screen for display and its preparation method

Method used

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  • A kind of optical projection screen for display and its preparation method
  • A kind of optical projection screen for display and its preparation method
  • A kind of optical projection screen for display and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0053] Such as figure 1 As shown, the optical projection screen for display provided by the present invention includes a prism layer 101 and a base layer 102 . The prism layer 101 is firmly bonded to the surface of the base layer 102 . The prism layer 101 includes an adhesive 1011 and reflective particles 1012 inside. The exterior of the prism layer includes a first surface 1013 and a second surface 1014.

[0054] PET with a thickness of 250 μm was selected as the base layer. The prism layer is fabricated on the base layer by using an adhesive (component: acrylic resin) containing reflective particles (a mixture of aluminum silver powder and titanium dioxide at a weight ratio of 1:1). The parts by weight of the reflective particles are 50 parts by weight, and the parts by weight of the adhesive are 100 parts by weight. The size of the reflective particles is 1-10 μm.

[0055] The light concentrating microstructures included in the prism layer are prism strips. The prism ...

Embodiment 2

[0057] Such as figure 2 As shown, the present invention selects PET with a thickness of 200 μm as the base layer. Use an adhesive (ingredient: polyurethane resin) containing reflective particles (ingredient: titanium dioxide) to make a prism layer on the base layer, the prism layer contains 10% microporous structure, and the micropore size is 10-20 μm , has the effect of reflecting light. The parts by weight of the reflective particles are 20 parts by weight, and the parts by weight of the adhesive are 100 parts by weight.

[0058] The microprism structures included in the prism layer are prism strips. The prism strips are dithering, the apex angle formed by the first surface and the second surface is 80°, and the shape of the apex angle is arc-shaped. The height of the prism bars in the prism bar array is inconsistent, and the height of the prism bars is 200-250 μm. Both the first surface and the second surface of the prism strip are smooth surfaces.

Embodiment 3

[0060] The present invention provides an optical projection screen for display, wherein, such as image 3 As shown, a non-woven fabric with a thickness of 1 cm was selected as the base layer. An adhesive (component: acrylic resin) containing reflective particles (a mixture of aluminum oxide and barium sulfate at a weight ratio of 1:2) is used to fabricate a microlens layer on the base layer. The parts by weight of the reflective particles are 80 parts by weight, and the parts by weight of the adhesive are 100 parts by weight.

[0061] The diameter of a single structure in the microlens layer is 300 μm, and the distance between single structures is 200-300 μm. The surface of the microlens array is uneven, and the surface roughness is 0.01-0.1 μm.

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Abstract

The invention relates to optical thin film technology, and more particularly, to an optical projection screen for display and a manufacturing method thereof. In order to solve the problem that high brightness gains and wide viewing angles can not be achieved in existing projection screens, the invention provides the optical projection screen for display and the manufacturing method thereof. The screen comprises a prism layer and a base layer; the prism layer is adhered to the surface of the base layer; and the prism layer is composed of a plurality of condensing microstructures formed by an adhesive and reflective particles. The reflective particles are dispersed in the adhesive. The content of the adhesive is 100 parts, and the content of the reflective particles is 1-200 parts. The parts are parts by weight. The projection screen is with a high brightness gain, a wide viewing angle, and is widely used in laser TV and projector technology.

Description

technical field [0001] The invention relates to the technical field of optical films, in particular to an optical projection screen for display and a preparation method thereof. Background technique [0002] The development of display technology is increasingly diversified, such as TFT-LCD, OLED and laser display, etc., bringing various unique products to the market and enriching people's lives. Among them, laser display technology has gradually matured and won the favor of the market with its unique technical advantages. The main advantages of laser display technology are: energy saving, high color gamut, high contrast, super large size and flexible display, etc. It can be seen that these advantages cater to the mainstream of the current display technology, and laser TV is bound to become a very important branch of the next generation display technology, with huge market potential. [0003] Laser display to form a product for consumer use, its dedicated projection screen ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/60G02B3/00G02B5/02G02B5/04
CPCG02B3/0043G02B5/0231G02B5/04G03B21/60
Inventor 李轮马子盈徐良霞李向龙彭文昌李刚唐海江张彦
Owner NINGBO EXCITON TECH
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