An identification document is provided, comprising a core layer, such as TESLIN, laminated directly to a laminate layer, such as polycarbonate, without the use of an adhesive. The feeder is implemented to feed the first radiation electrode. Update information is maintained for each object maintained in each cache, wherein the update information for each object in each cache indicates the object, the cache including the object, and indicates whether each data unit in the object was modified. A first portion of the screen may be reserved as a window for data transmission, while a second portion retains regular display features.