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3D Polarizer Film

3D Polarizer Film

What is polarizer?

A polarizer plate is a filter sheet which allows a specific polarization of light waves to pass through and blocks other polarizations.

Two common types of polarizer sheets are linear polarizer and circular polarizer.

Polarizers are widely used in research labs, optical industry and equipment at homes.
Commercially available polarizers are made by different materials such as glass, crystals or plastics.

Plastic polarizers are the least expensive and commonly used in LCD (liquid crystal display) such as screens of calculators or computer monitors, sunglasses, and 3D movie glasses.

Structure of polarizer

Basically, the polarizer plate is structured in 3 layers; polarizer film PVA and support layers TAC, on both sides of polarizer. It is the most commonly used in linear polarizer, including protective film, TAC (Tri-acetate cellulose) on both sides, PVA (Polyvinyl alcohol), pressure glue (PSA), release film structure.
Protective film used to protect the polarizing plate surface, consumers need to tear when used.

PVA is the main body that makes the polar light; the lower TAC can be used to protect the PVA or replace the compensation film with the phase difference to achieve the function of compensating the liquid crystal. The PSA is used to protect the PVA from the PVA, adhere to the LCD substrate on the LCD.

Onto this bare polarizer, additional treatments are applied such as an adhesive glue, hard coating, antiglare, anti-reflection and other surface treatments.

Manufacture of polarizers

Nowadays the polarizer film was invented by Polaroid company Edwin H. Land in 1938. Although it has 80 years of history, but the process principle and material is still roughly the same.
The general process, the first is to produce polarized film, hydrophilic PVA (Polyvinyl alcohol).

After the film is swollen, it is immersed in a dichroic dye solution and stained.
The dichroic dye is usually a solution of iodine and potassium iodide. And then extend the dyeing film, extending to give the dichroic dye arrangement order, the higher the order, the prepared polarizing film optical properties better.

After the extension of the film after drying, easy to stretch the direction of brittle fracture.
Its raw materials for the hydrophilic polymer film, vulnerable to the impact of water vapor properties and therefore need to support and block the water vapor of the protective film.

Type of Polarizer:

At present there are two type of polarizers in the market: Iodine polarizing film and Dye Type Polarizing Film

Iodine polarizing film has a high permeability, high contrast and a wide range of wavelength bias characteristics, the price is relatively cheap, so for a wide range of applications. The polarizing property of the dye-based polarizing film is inferior to that of the iodine system, but the wet heat resistance characteristic is good and belongs to the durability polarizing film.

Application of Polarizer

Iodine standard linear polarizing film applications is in a wide range, such as watches, calculator computers, PC, OA machines, LCD. In addition, cars, ships, aircraft, outdoor measurement equipment on the use of dye-based polarizing film such a durable polarizing film.

We have developed several types of polarizer films for various purpose. Our customers have the highest confidence in our polarizer film products.
3Dlens.com supplies the highest quality polarizer film at the lowest price.
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