Abstract: A ribbon package device includes a sleeve and a ribbon. The sleeve includes a central through-hole extending along an axis. The ribbon is wound to have a plurality of coils. The coiled ribbon includes a central portion and two end portions on opposite sides of the central portion. The coiled ribbon is inserted through the through-hole of the sleeve with the sleeve located in the central portion of the coiled ribbon. The central portion of the coiled ribbon has a thickness in a thickness direction perpendicular to the axis. The end portions of the coiled ribbon are spaced along the axis. Each end portion of the coiled ribbon has a thickness in the thickness direction larger than the thickness of the central portion of the coiled ribbon and larger than a diameter of the through-hole of the sleeve.

Abstract: An electronic license plate system capable of changing information displayed thereon and method for the same is a display device installed on in a motor vehicle showing information according to random instructions given by a traffic control system, serving as an illuminated license plate for easy visual identification. The displayed contents of the license plate varies with time and location to prevent counterfeiting or a shut-down event, and alertness and road security may be raised in areas with poor visibility due to the illuminated license plate. The electronic license plate working with the traffic control system may reach the functions of unmanned charge, dynamic geographic information, unmanned traffic control, road use information, and traffic statistics, and may provide a functional intelligent traffic system (ITS) for prevention of license plate counterfeiting and vehicle theft.