The main function of the polarizing plate of a polarizing microscope is to convert non polarized natural light into polarized light, allowing light perpendicular to the electric field to pass through, allowing the LCD panel to display images normally. The main function of a polarizer is to convert natural light passing through it into polarized light. Polarizer is a sheet-like optical functional material that generates and detects polarized light. Polarizer is a key component that affects the display effect of LCD screens.

Polarizing plate is a type of product that polarizes non polarized natural light and converts it into polarized light. Coupled with the twisting characteristics of liquid crystal molecules, it controls the passage of light, thereby improving the transmittance and viewing angle range, and forming anti glare functions. It is a very important product in the upstream raw material field of the panel, and accounts for about 10% of the raw material cost of LCDTV.

The pressure sensitive adhesive used is a high-temperature and moisture-resistant pressure sensitive adhesive, and PVA is subjected to special immersion treatment (dye series products), resulting in a wide temperature polarizer; By adding ingredients that prevent ultraviolet rays from passing through the pressure sensitive adhesive used, a UV resistant polarizer can be made; By combining birefringent optical compensation film on the transmission substrate, a polarizer for STN can be made; By combining a light steering film on the transmission substrate, a wide angle polarizer or a narrow angle polarizer can be produced; Coloring the pressure sensitive adhesive, PVA film, or TAC film used is called a color polarizer. In fact, with the continuous development of new LCD display products, there are more and more types of polarizers.