Polycarbonate light diffusion film for backlight displaying of mobile phone and preparation method of polycarbonate light diffusion film

A polycarbonate, light diffusing film technology, applied in optics, optical components, educational appliances, etc., can solve the problems of pollution, PET diffusion film easily deformed, diffusion coating falling off environment, etc., to prevent pollution and facilitate subsequent production and processing , the effect of high quality stability

Inactive Publication Date: 2015-04-08
JIANGXI SHENGHUI OPTICAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the three technical problems of easy deformation of the existing PET diffusion film, falling off of the diffusion coating and environmental pollution, the invention provides a polycarbonate light diffusion film for mobile phone backlight display and its manufacturing method

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  • Polycarbonate light diffusion film for backlight displaying of mobile phone and preparation method of polycarbonate light diffusion film
  • Polycarbonate light diffusion film for backlight displaying of mobile phone and preparation method of polycarbonate light diffusion film

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Embodiment Construction

[0035] A polycarbonate light-diffusing film for mobile phone backlight display of the present invention and a preparation method thereof will be described in detail below in conjunction with specific embodiments.

[0036] The raw material and mass percent of polycarbonate light diffusion film of the present invention are as follows:

[0037] Polycarbonate 93%~98%

[0038] Silicone resin 1%~7%

[0039] PMMA powder 1% to 7%.

[0040] Raw material: Polycarbonate Teijin Chemicals

[0041] Silicone resin Shin-Etsu Silicone Particle size 2μm~4μm

[0042] PMMA micropowder Soken Chemical Particle size 3μm~5μm

[0043] Special equipment: high-mix and low-mix compounding units; special machine for polycarbonate light diffusion masterbatch; optical film production line; roller group with lens structure.

[0044] The plastic extrusion process is one-time molding, without the use of chemical liquid additives such as organic solvents, and has no organic gas hazards to the environment. ...

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Abstract

The invention relates to a polycarbonate light diffusion film for backlight displaying of a mobile phone and a preparation method of the polycarbonate light diffusion film, and belongs to the technical field of optical films. The polycarbonate light diffusion film comprises the following raw materials in percentage by mass: 93-98% of polycarbonate main material, 1-7% of organic silicon resin, and 1-7% of PMMA (polymethyl methacrylate) micro powder. The preparation method has the advantages that a special high-mixing and low-mixing matching machine, a special polycarbonate light diffusion master batch machine, an optical film production line and a rolls group with a lens structure are adopted and the polycarbonate light diffusion film is processed and formed at one time in a plastic extrusion way without using chemical liquid additives, such as organic solvents, the harm of organic gas on the environments is avoided, the finished rate is greatly improved, and the cost is obviously reduced; the prepared product is favorable for the subsequent production and processing; two types of products required by backlight diffusion, i.e. a high-transparent type diffusion film and a high-diffusion type diffusion film, can be produced, so as to provide a new selection for the field of LED (light emitting diode) backlight displaying.

Description

technical field [0001] The invention belongs to the technical field of optical thin films, and in particular relates to a polycarbonate light-diffusing film for backlight display of mobile phones and a manufacturing method, which is mainly used for the backlight of mobile phones and light display products less than 10 inches in size. Background technique [0002] At present, the backlight modules of light display products such as mobile phones, TVs, and monitors use PET light-diffusing film. PET light-diffusing film is a composite film, which is coated with a diffusion coating on the PET film. At present, there are mainly 1. Easy to deform and affect the optical effect ; 2. The diffusion coating will fall off and affect the product quality; in addition, the PET light diffusion film needs organic solvents during processing, which will pollute the environment. [0003] For example, Chinese patent CN 101887138A discloses a photoelectric diffusion film with total light transmitt...

Claims

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Application Information

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IPC IPC(8): G09B5/02
CPCG02B5/0242G02B5/0268
Inventor 马展辉
Owner JIANGXI SHENGHUI OPTICAL TECH
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