axis of the crystals dichroic dye molecules show a high absorption towards light polarized along their long axis and thus the aligned molecules will only have their high absorption orientation relative to half of the light when applying dichroic dye molecules it may therefore be necessary to apply a specially designed color conversion cell 30 shown in fig3 the cell 30 contains two liquid crystal matrices 32 and 34 with uniaxially oriented liquid crystals and dichroic fluorescent dye molecules orientation of the matrices 32 and 34 is made so that molecular orientations is 90 degree with respect to each other when v 0 thus in a first state of the cell 10 the liquid crystals can orient the dye molecules 21 in their high absorption orientation in relation to light from the led light source 4 adjusting the voltage between electrodes 12 and 13 can switch the cell 10 to a second state where the liquid crystals orient the dye molecules 21 in their low absorption orientation in relation to light from the led light source 4 there exist a number of alternatives to the dichroic fluorescent dye molecules fig2 further shows other particles in low and high absorption orientations an anisometric particle 22 of a photoluminescent material composition could also be disc like sheet like or disc like particles 24 with fluorescent dye molecules 25 attached to the surface one example being aluminumoxide flakes of thickness u02dc 100 nm and u02dc 1 u03bcm diameter and rod like particles 26 with fluorescent dye molecules 25 attached to the surface in those cases proper alignment of the liquid crystals orients the particles in their low absorption orientation a 2 t 2 u2014.