IC card and booking account system using the IC card
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United States of America Patent
Stats
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Apr 14, 2009
Grant Date -
Jul 8, 2004
app pub date -
Dec 19, 2003
filing date -
Dec 27, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
It is an object of the present invention to provide a highly sophisticated functional card that can ensure security by preventing forgery such as changing a picture of a face, and display other images as well as the picture of a face. A card comprising a display device and a thin film integrated circuit; wherein driving of the display device is controlled by the thin film integrated circuit; a semiconductor element used for the thin film integrated circuit and the display device is formed by using a polycrystalline semiconductor film; the thin film integrated circuit and the display device are sealed with a resin between a first substrate and a second substrate of the card; and the first substrate and the second substrate are plastic substrates.
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