Diffusion film for diffusion board

A technology of diffusion film and diffusion plate, which is applied in the field of diffusion film, can solve the problems of time-consuming process and other problems, and achieve the effects of accelerating the formation rate, avoiding polymerization reaction, and increasing toughness

Inactive Publication Date: 2003-03-12
PRODISC TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, as far as the curing time of the heat treatment casting method is concerned, it takes at least 4 to 8 hours, which is very time-consuming for the overall process time.

Method used

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  • Diffusion film for diffusion board
  • Diffusion film for diffusion board
  • Diffusion film for diffusion board

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Experimental program
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Embodiment Construction

[0013] A diffusion film for a diffusion plate according to a preferred embodiment of the present invention will be described below with reference to related drawings.

[0014] The diffusion film used in the diffusion plate of the present invention is formed by curtain coating and photocuring. Such as figure 1 and figure 2 As shown, a transparent substrate 2 is provided, such as an acrylic (Aerylic) plate, polycarbonate (PC) plate, or strengthened glass, etc., on a conveyor belt 7, so that the substrate 2 can be conveyed sequentially; When the substrate 2 reaches the stage of coating the diffusion material 51, the liquid diffusion material 51 flows out from a container 4 in the form of a waterfall, so that the diffusion material 51 can be evenly coated on the substrate 2. This coating method is called a waterfall. curtain coating method.

[0015] In this embodiment, the diffusion material 51 mainly includes acrylate, a photoinitiator (Photoinitiator), a diffusion powder (di...

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Abstract

A diffusing film for diffusion board is prepared by curtain coating method and optical solidifying method, and contains acrylate, light initiator chosen from methyl-1-(4-methylthiophenyl)-2-morpholinyl-1- acetone, 1-hydroxy cyclohexyl phenylketone, etc. diffusing powder, defoaming agent, Si-containing compound and O-Si compound.

Description

technical field [0001] The invention relates to a diffusion film for a diffusion plate, in particular to a diffusion film which can be formed by a waterfall coating method and a photocuring method. Background technique [0002] With the advancement of technology, recently rear projection screens have been widely used in home theaters, monitor screens, or multi-screen installations. Generally speaking, a rear projection screen mainly includes a Fresnel lens and a diffusion plate. The Fresnel lens is used to improve the uniformity of light, and the diffusion plate is arranged on the Fresnel lens One side is used to provide the function of imaging. [0003] The usual manufacturing method of the diffusion plate adopts thermal process casting, and its materials mainly include methyl methacrylate (Methacrylate ester, MMA), azobisisobutyronitrile (AIBN), diffusion powder (diffuser powder), and dyes (tint), etc., after being fully stirred and mixed, poured in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08
Inventor 林钧瑜龚大焜李忠根
Owner PRODISC TECH INC
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