2600mm! LG Chemical Industry's Largest Wide Polarizer Produced Successfully in Guangzhou Base

In recent years, due to the rapid growth of domestic panel production capacity, China has become the world's largest producer of LCD panels. As the core material of the panel, the polarizing plate accounts for 10-15% of the total cost of the LCD panel. With the upgrading of domestic consumption, the market for polarizing plates for TVs with a size of 65 inches or more is huge.

Recently, LG Chemical's cutting-edge materials Guangzhou base successfully produced the largest wide-scale polarizer in the industry, with a width of up to 2600mm.

LG Chem Guangzhou base successfully produces the industry's largest wide polarizer

The biggest problem to be solved in the production of ultra-wide polarizers is to ensure the maximum effective width of the product while producing high-quality polarizers with uniform and stable optical characteristics. The successful commissioning of the 2600mm ultra-wide polarizer production line at the LG Chemical Guangzhou base not only filled a gap in China's large-scale polarizer production project, but also provided an important link for the domestic flat panel display industry.

In addition, the protective film project for polarizing plates was introduced into the country as the world's first polarizing plate upstream core material project. At present, LG Chemical Guangzhou base is orderly advancing the construction of production line plants, and mass production is planned to begin in August 2020. This project will accelerate the localization of polarizing plate core materials and promote the localization of the entire supply chain of the display industry, which will play an important role in ensuring the competitiveness of China's display products in the industrial chain.

Polarizer

A polarizing plate is an optical film material used to control the polarization direction of a specific light beam, and is an indispensable part in a liquid crystal panel (LCD). The principle is that when natural light passes through the polarizing plate, the light whose vibration direction is perpendicular to the transmission axis of the polarizing plate will be absorbed, and only polarized light whose vibration direction is parallel to the transmission axis of the polarizing plate will be transmitted, thereby realizing the polarization direction of the beam. control. The polarizing plate is composed of a polarizing film (PVA), a protective film (TAC), a pressure-sensitive adhesive layer, a release film, a protective film, and an optical compensation film. The basic structure is a two-layer TAC film sandwiched by a layer of stretched PVA film.