Provided herein is an improved organic-inorganic hybrid polymeric matrix for use in light valve devices and a process to make the same. The disclosed polymer contains organic-inorganic bulky groups in the polymer backbone or as endcap group and has a general formula: wherein: A is a bulk group, comprising at least one Polyhedral Oligomeric Silsesquioxanes (POSS) compounds of Formula-1, where R1 to R8 are substitutes independently selected from hydroxyl, halide atom, saturated or unsaturated hydrocarbons serving as a positional anchor for the polymer. B is a cross-linkable group includes at least one silicon-containing cross-linkable monomer. C represents any non-cross-linkable silicon monomer or oligomer and a combination of both monomer and oligomer and x, y, z are positive integers, where x, y, z is equal or greater than 1. These integers determine the configuration of such a hybrid organic-inorganic polymer system as expressed in the above formula.