US Patent No: 8,242,981
Number of patents in Portfolio can not be more than 2000
Pixel and organic light emitting display using the same
Stats
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Aug 14, 2012
Issued date -
Feb 25, 2009
filing date -
12/392,313
serial no -
In Force
status
Importance
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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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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 6,535,185 Active driving circuit for display panel | 83 | 2001 | |
| 6,570,338 Driving circuit for electro-luminescence cell | 19 | 2001 | |
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| 2006/0170,634 Top-emitting organic light emitting device | 4 | 2006 | |
| 2007/0200,814 ORGANIC LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD | 1 | 2007 | |
Patent Citation Ranking
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