A display and record medium includes a digital information record section, which
is implemented as an IC memory and can record record information in noncontact,
and an information display section implemented as a liquid crystal display medium
of light write type into which display information can be written. A digital information
rewrite section of an information writer communicates with the digital information
record section of the display and record medium by electromagnetic waves to rewrite
record information as required. A display information rewrite section of the information
writer irradiates an optical pattern to the information display section of the
display and record medium to rewrite display information. It is possible to rewrite
both digital information and display information concurrently in noncontact.
