Do you know what a polarizer is? If not, don't worry - you're not alone. Many people don't know what they are, what they do, or how they work. In this blog post, we'll discuss everything you need to know about polarizers We'll cover what they are, their brands, how to use them, their angles, and much more, so if you're curious about polarizers and want to learn more, read on!

Brands of Polarizing Film

Polarizers, also known as polarized light sheets, control the direction of polarization of a specific light beam. When natural light passes through the polarizer, the light perpendicular to the axis will be absorbed, leaving only the polarized light whose vibration direction is parallel to the polarizer's transmission axis. The lower polarizer is used to convert the light generated by the backlight into polarized light, while the upper polarizer is used to resolve the polarized light after the liquid crystal is electrically modulated to produce a contrast between light and dark to produce the display screen. The polarizer is mainly made of PVA film, TAC film, protective film, release film, and pressure-sensitive adhesive. The polarizer is an important part of the LCD module, we commonly use the polarizer Brand: LG, Shengbo, Chi-Mei, Sunnypol, Sumitomo, and Toyo.

Sumitomo

Sumitomo Chemical Corporation was founded in September 1913 and has 167 subsidiaries with approximately 31,000 employees worldwide, mainly in the chemical and energy industries. The company has six major businesses: basic chemicals, petrochemicals, and plastic products, IT-related chemicals, health and crop science, pharmaceuticals, and other chemicals, with IT-related chemicals including color filters, optical goods, semiconductor processing materials, and electronic materials. The company has 13 production lines with a total capacity of 87 million square meters. In addition, Wuxi Xuyou, a joint venture between Sumitomo Chemical and Dongxu Optoelectronics, will add 20 million square meters of production capacity.

LG

LG Chem is one of the most representative chemical companies in Korea. Its main business areas include basic materials, batteries, information electronics materials, display materials, and other materials such as battery materials. In 2000, LG Chemical was the first company in Korea to commercialize polarizing plates for LCDs, and the sales of LG's Information Electronics Materials Division (the division that produces polarizers and other materials) account for approximately 13% of the company's total sales. LG Chem has 10 production lines with an annual capacity of 172 million square meters. Meanwhile, LG Chem has a plant in Nanjing-Lokin Chemical (Nanjing) Information Electronic Materials Co. In addition to L1 and L2, the company's new 2250mm production line has been put into operation, with an annual capacity of 32.4 million square meters.

Chi-Mei

Chimei Materials was founded in 2005 with investment from Chi Mei Industrial, mainly producing polarizing plates for liquid crystal displays. It is currently the leading manufacturer of polarizers in Taiwan. Groupon is the largest customer of CMO. The first line of CMI's Kunshan plant, a joint venture with Jinjiang, has started mass production and will increase total production capacity by 25%. Three more production lines are planned to be built. In addition, the production of CMO's Kunshan plant has tariff benefits, which can effectively relieve the cost pressure of CMO's sales in mainland China.

Sunnypol

Ltd. was established in 2007 and mainly engaged in the research and development, production, and sales of polarizers. 2011 saw the completion of a wide format production line for TV and computer LCDs. In 2016, Sunnypol's subsidiary, Hefei Sunnypol Optoelectronics Technology Co., Ltd. went into operation with an annual production capacity of 16 million square meters of polarizers and will have an annual production capacity of 80 million square meters of polarizers when all six lines are put into operation. At present, Sunnypol's products are mainly of small and medium sizes below 32 inches, and the major domestic panel makers have supply cooperation with Sunnypol.

How to know the degree of your polarizing film？

The angle of the polarizer is the direction of stretching, and there are three

ways to identify it.

1, along a certain angle against or tear the polarizer, more accessible to tear along is the

the angle of the polarizer.

2, look at the words or dots on the polarizer, their alignment direction is the

the direction of the polarizer.

3, take a polarizer with a known angle and overlap it with the polarizer to be

measured, if the degree of light transmission of the two overlapping sheets is

almost the same as that of one, then the two angles are the same, and vice

versa, there is an angle difference. The angle between the horizontal and the

known angle polarizer is the angle of the polarizer to be measured, after

turning the angle and adjusting it to the degree of cross-least light transmission

(i.e. the darkest time).

(Note that the angle in the polarizer industry, medium and large sizes are

generally in accordance with the horizontal screen as the standard, in the

absence of said vertical screen angle, are horizontal screen angle, small size

need to confirm in advance is a vertical screen, or a horizontal screen.)

 

How to pack polarizing film？

After the polarizing film is cut, the finished product should be arranged to be processed neatly. After the polarizing film is cut and placed neatly, it should be packed neatly according to a certain quantity, type, specification, and batch number, which can reduce the scratches, foreign matter, and bad adhesion formed by mutual friction when the polarizing film is scattered inside the plastic packing bag, and at the same time, it is convenient to control the quality of the polarizing film in the process of patching. Management.

The cut CHIP-shaped polarizer should be packaged in plastic packaging boxes, in the packaging process, the polarizer should be placed parallel and vertically, and avoid horizontal stacking; after the packaging of the inner packaging bags for the carton, the carton is surrounded by foam protection.

Where to buy polarizing film？

When you are looking for where to buy polarizers, you should ask yourself the question, are you looking for a supplier manufacturer of polarizers or a retailer of polarizers?

If you are a retailer looking for polarizers, you can find the polarizer size, thickness, and angle you want on Amazon and AliExpress.

If you are looking for a supplier of polarizers, there are three ways to look.

 

1. Find a supplier's official website

The supplier's official website is the most direct way for you to know their information, they will introduce their product information and company details on the official website, through the supplier's official website you can get all their information very directly, like RINA TECH.

2. Made in China

Made in China is one of the largest supplier platforms in China, with a very large number of suppliers, including RINA TECH.

3. Alibaba