A benzophenone compound is represented by the following formula :n-X\u2014m\u2003\u2003whereinX is an organic moiety having valence, being an integer ranging from 1 to 4;A isB isR is H or a methyl group;n is the number of A bonded to X and is an integer ranging from 1 to 4; andm is the number of B bonded to X and is an integer ranging from 0 to 3. The fill layer comprises an insulator, preferably aluminum oxide, aluminum nitride, mixtures thereof and layered structures thereof. Alternatively, thinly cladded or encased iodine polarizers are disposed adjacent to the front and back surfaces of the liquid crystal display cell. When disposed or \u201cside loaded\u201d in the pocket, the gauges within the pair of assemblies are axially aligned and positioned in a plane that is normal to the radius of the formation tester tool section.