A polarizing sheet plate is a filter sheet which allows a specific polarization of light waves to pass through and blocks other polarizations.
Two common types of polarizing sheet sheets are linear polarizing sheet and circular polarizing sheet.
Polarizing sheets are widely used in research labs, optical industry and equipment at homes.
Commercially available polarizing sheets are made by different materials such as glass, crystals or plastics.
Plastic polarizing sheets are the least expensive and commonly used in liquid crystal display such as screens of calculators or computer monitors, polarizing sunglasses, and 3D movie glasses.