Colloidal quantum dots (QDs) provide excessive coloration purity important to high-quality liquid crystal shows (LCDs), which allows unprecedented ranges of coloration enrichment in LCD-TVs right this moment. Nonetheless, for LCDs requiring polarized backplane illumination in operation, extremely polarized gentle technology utilizing inherently isotropic QDs stays a basic problem. Right here, we present strongly polarized coloration conversion of isotropic QDs coupled to Fano resonances of v-grooved surfaces appropriate with surface-normal LED illumination for next-generation QD-TVs. This structure overcomes the critically indirect excitation of floor plasmon coupled emission by utilizing v-shapes printed on the backlight unit (BLU). With isotropic QDs coated on the proposed v-BLU floor, we experimentally measured a far-field polarization distinction ratio of ∼10. Full electromagnetic answer reveals Fano line-shape transmission in transverse magnetic polarization permitting for top transmission as a sign for forward-scattering configuration. Of those QDs coupled to the floor plasmon-polariton modes, we noticed robust modifications of their emission kinetics revealed by time-resolved photoluminescence spectroscopy and through dipole orientations recognized by again focal aircraft imaging. This assortment of findings signifies conclusively that these isotropic QDs are compelled to radiate in a linearly polarized state from the patterned planar floor beneath surface-normal excitation. For next-generation QD-TVs, the proposed polarized color-converting isotropic QDs on such v-BLUs will be deployed in bendable digital shows.
