Patent ID: 6297789
Filing Date: 2001-10-02
Classification: G06K

Abstract:
An integrated circuit card, comprising:a. a card-shaped support;b. a reprogrammable nonvolatile first memory on the support, for storing information to be displayed;c. an integrated circuit chip on the support, comprisingi. a reprogrammable nonvolatile second memory for storing additional information; andii. a serial port on said support for interfacing the integrated circuit chip with an external controller device; andd. a liquid crystal display on the support, the liquid crystal display having plural pixels;e. plural parallel output ports directly connecting each pixel of the liquid crystal display to a corresponding bit of information stored in the first memory; andf. an electric energy source on the support connected directly to the first memory, solely for driving the first memory and the liquid crystal display via the first memory; wherein the optical state of each pixel corresponds directly to the state of the corresponding bit of information stored in the first memory upon driving the liquid crystal display.