Shortcomings of wire grid polarizers that combine high polarization and heat resistance
Polarizers are optical elements supporting polarization control technology that is needed in LCD panels and other products in a broad range of fields, including optical equipment such as LCD projectors, automotive equipment such as HUDs, manufacturing equipment such as lithography equipment, and polarized sunglasses. However, in environments where automotive equipment, LCD projectors, and the like are used, these elements in products must be highly durable to withstand heat, moisture, and light.
Although conventional wire grid polarizers offer a combination of high polarization, high transmittance, and thinness, they are also highly reflective, which has limited the scope of application to products such as LCD projectors.