An apparatus adapted to be coupled to a power source having a rotary drive shaft is provided. The conjugates of the invention are characterized by a hydroxylalkylamino linker between the oligopeptide and vinblastine. A second data from the selected multiple-value memory cell is obtained by applying a second voltage to the control gate of the selected multiple-value memory cell. Multiple apertures are provided in the panel member. The tray assembly includes a thermoformed tray and rigid peripheral frame, that may be injection molded peripheral frame, to give better rigidity to the assembly. The capacitor may have a sufficient capacitance without substantially reducing a transmittance of the organic light emitting display device.