Liquid crystal display with image storage ROM
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United States of America Patent
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Apr 22, 1997
Grant Date -
N/A
app pub date -
Jan 29, 1996
filing date -
Jan 29, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
An IC driver mounted on a LCD display package contains a sensor for determining temperature of the LCD cell, and a digital value of the temperature is serially transmitted to a remote microprocessor which determines compensated voltage and sends voltage command data back to the IC driver which produces a drive voltage by a charge pump. A digital code on the LCD cell identifies cell response characteristics and the code is used by the microprocessor to calculate the desired voltage. A ROM in the IC driver stores many bit-mapped images which are selected by the microprocessor for display.
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