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24 March 2023 Analysis of depolarization effects of random depolarization film for real-color displays
S. Sasaki, Y. Koike
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Proceedings Volume PC12444, Ultra-High-Definition Imaging Systems VI; PC1244406 (2023) https://doi.org/10.1117/12.2647491
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
A Random Depolarization Film (RDF), a polymer film doped with birefringent microparticles, randomizes polarization of the light. This study analyzed depolarization effects of the RDF that contribute to realizing real-color displays. The first effect is to decrease a degree of polarization, which resolves a blackout problem of the displays viewed through polarized sunglasses. The second effect is to minimize the wavelength dependence of the depolarization, which improves a color change of the displays viewed through the polarized sunglasses. The third effect is to minimize the viewing-angle dependence of the depolarization. The displays with the RDF hardly shows any color change at wide viewing angles.
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S. Sasaki and Y. Koike "Analysis of depolarization effects of random depolarization film for real-color displays", Proc. SPIE PC12444, Ultra-High-Definition Imaging Systems VI, PC1244406 (24 March 2023); https://doi.org/10.1117/12.2647491
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KEYWORDS
Particles
Calcite
Image transmission
Liquid crystals
Organic light emitting diodes
Polarization
Polymer thin films
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