Pixel and organic light emitting display using the same
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United States of America Patent
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-
Aug 14, 2012
Grant Date -
Oct 1, 2009
app pub date -
Feb 25, 2009
filing date -
Mar 31, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A pixel is provided including an OLED having anode and cathode electrodes. A second transistor controls current supplied from a first power supply to a second power supply via the OLED. A first transistor is coupled between a gate electrode of the second transistor and a data line and is configured to turn on when a scan signal is supplied to a scan line. A first capacitor is coupled between the first power supply and the gate electrode. A second capacitor is coupled between the anode electrode and the gate electrode. A fourth transistor is coupled between the second capacitor and the anode electrode and is configured to turn on when a control signal is supplied to a control line. A third transistor is coupled between the second transistor and the anode electrode and is configured to turn off when a signal is supplied to a light emitting control line.
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