Driving apparatus of electroluminescent display device and driving method thereof
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United States of America Patent
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-
Oct 10, 2006
Grant Date -
Feb 20, 2003
app pub date -
Aug 9, 2002
filing date -
Aug 17, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A driving apparatus of an electroluminescent display device includes: a scan driving unit for receiving a voltage from a single voltage source and sequentially supplying a scan pulse of which polarity is reversed by the frame unit to scan lines; and a data driving unit for receiving the voltage and sequentially supplying a data pulse with an opposite polarity to the polarity of the scan pulse to data lines. An optimum voltage to a pixel cell can be supplied by completely removing electric charges charged in the pixel cell by reversing a positive pulse or a negative pulse generated by a single power source by the frame unit and supplying it to each data line and scan line.
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