A polarizer film is an optical filter that allows light waves of a mixed or undefined
polarization to pass through and
blocks those of other polarizations. Polarizer
films are extensively used in various optical techniques and instruments. The most commonly known polarizers are circular polarizers and linear
polarizers. Polarizing
films find
widespread application in the fields of LCD (liquid crystal
display) technology and photography. Apart from light waves, polarizer
films can be made for other different types of electromagnetic
waves,
such as radio waves, X-rays, and microwaves. A polarizer film is generally made
up of polyvinyl alcohol (PVA), which provides the film with unique polarization
characteristics, helping it filter light beams with a specific oscillation
direction. Polarizer films are widely utilized in LCD panels, TVs, computers,
cell phones, optical filters, sunglasses, contact lenses, etc.
Polarizer films are optimally used
in various areas, including microscopy, imaging, and display. They are known to
enhance image quality and protect against harmful UV rays. Moreover, they
eliminate the effects of reflections on surfaces like glass, metal, and
plastic. Their mechanical strength can be enhanced by laminating their surfaces
using backing materials like a TAC film or any other protective film. The demand for polarizer
films has considerably risen worldwide. Therefore, the surging demand for these
films can be attributed to a plethora of factors, such as the burgeoning
application of these films in LCD displays, cell phones, etc., exponentially
growing demand for televisions and smartphones, increasing demand for larger
display panels of smartphones and tablets, surging penetration of
high-visibility and high-definition quantum dot (QD)-LED displays, and the
emergence of organic light-emitting diode (OLED) displays for gadgets. Furthermore,
rising eye disorders, increasing environmental concerns over the hazards caused
by electronic product disposal, enforcement of stringent government norms regarding
product packaging, magnifying demand for reflective polarizing films,
technological advancements, and increasing R&D activities are among the
other vital factors propelling the growth of the global polarizer film market.
Some of the leading players in this
market include
Nitto Denko Corporation,Sumitomo, SUNNYPOL,
LG Chem, Samsung
SDI, BenQ, Optimax, CMMT, Sanritz,
Polatechno, SAPO, and Dongxu, among others. The global polarizer film market is concentrated in the Asia Pacific
region, as most of the leading manufacturers of polarizer films are based in
countries like Japan, China, and Korea. Nitto is one of the top players in this
industry. In July 2020, the Japan-based company developed an ‘Ultra-thin Glass
with Polarizing Film’ in collaboration with Nippon Electric Glass Co. Ltd. The
product incorporates Nippon’s ultra-thin glass G-Leaf and Nitto’s
high-performance polymer films.
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