| abstract |
The present invention discloses the use of functionalized particles as electrophoretic displaying particles, wherein the functionalized particles are SiO 2 , Al 2 O 3 or mixed SiO 2 and Al 2 O 3 particles comprising, covalently bound to an oxygen atom on the surface, a radical of formula (1), wherein R 1 and R 2 are independently of each other hydrogen, particle surface-O—, or a substituent, n is 1, 2, 3, 4, 5, 6, 7 or 8, B is the direct bond or a bridge member, and D is the residue of an organic chromophore. |