A method of displaying relative information which uses special segments in a liquid crystal display within the electronic price label. The system includes the electronic price label and a number of computers. In addition to the liquid crystal display, the electronic price label includes a memory. The...http://www.google.fr/patents/US6520411?utm_source=gb-gplus-shareBrevet US6520411 - System and method of graphically displaying relative information by an electronic price label
System and method of graphically displaying relative information by an ...
