Display Devices
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United States of America Patent
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-
N/A
Issued Date -
Oct 29, 2009
app pub date -
May 15, 2007
filing date -
May 16, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
. The drive circuit is arranged to provide to the capacitive display, such as an electroluminescent display, an AC drive signal at a first, high voltage from a low voltage power source such that, in use, the drive circuit is repeatedly charged and discharged. The drive circuit is further arranged such that, when the capacitive display discharges, a discharge current from the display is supplied at a second, lower voltage to the further display. In the way energy from the capacitive display is used to drive a further display rather than being discarded.
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Family
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