A feeder conveyor belt system applies force to the upper surface of objects and assists in moving the objects over a planar surface. The adaptive route guidance can provide one or more preferred routes based on the user preferences including those derived from historical selection or use, which can be presented to a user for navigation purposes. Inputoutput ports are provided in the cylinder heads. , Bluetooth\xae technology is enabled. Accordingly, the present invention can enhance light utilization efficiency of a field emission display.