Ultra thin (<1 μm) polarizers with high polarizing efficiency based on lyotropic dichroic dyes have been developed for LCD and other applications. The developed polarizers reveal rod‐like chromophore structure (O‐polarizers), same as conventional iodine polarizers in contrast to the first‐generation polarizers with disc‐like chromophores structure (E‐polarizers). Polarizing efficiency, single transmission, dichroic ratio, and color of developed O‐polarizers are close to the iodine polarizers.
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