A display substrate includes an insulating substrate, a thin film transistor, a contact electrode, and a pixel electrode. The handle substrate member may be formed from a plurality of liquid layers, for example a thinner surface layer conveying specific properties to the donorsubstrate interface, and a thicker support layer dispensed over the surface layer. The cap unit and the base unit may include corresponding threads to allow the cap unit to be screwed onto the base unit. The responder compares the received access filter value to the stored access filter value. In a further form, the task involves production of a chemical compound sample and chemical analysis equipment is included to evaluate the sample. The upstanding extraction bur and the lifting ball thereof project through one of a pair of slots formed in the universal fulcrum tray.