Display Panels Driving Apparatus and Method
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United States of America Patent
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N/A
Issued Date -
Nov 13, 2008
app pub date -
Nov 13, 2006
filing date -
Nov 14, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A device such as a smart card (100) capable of displaying data on a display panel (122). The panel (122) comprises an array of segments (130) coupled to a battery (124) for activating any or several of the segments. Microprocessor (114) is employed for storing and processing data. Switch (110) is operable by the user. Driver (120) includes electronic switches (220; 222) for activating a selection of the segments in accordance with the processed data to display segmented symbols on the panel (122). In order to extend battery life while keeping long-lasting quality performance, the polarity of the voltage applied to the segments is reversed in succession with respect to the previous activations.
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