ELECTRO-OPTICAL DEVICE STACK
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United States of America Patent
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Jan 19, 2016
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Jan 29, 2015
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Abstract
An optical scattering layer (10) comprising a birefringent matrix material (11) and a plurality of scattering particles (12) dispersed in the matrix material (11). The scattering particles (12) have a particle refractive index (“np”) that for visible light matches the ordinary refractive index (“no”). By matching the refractive index of the scattering particles with one of the refractive indices of the birefringent matrix material, anisotropic scattering is obtained.
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