Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-02-11
2010-12-07
Nguyen, Kevin M (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S076000, C345S082000
Reexamination Certificate
active
07847774
ABSTRACT:
A pixel driving circuit of an active matrix organic light emitted diode display is provided with an input first scanning voltage signal and an input displaying voltage signal. The pixel driving circuit comprises a driving thin film transistor (TFT), an organic light emitted diode (OLED), and a capacitor. The capacitor has a first end connected to a gate electrode of the driving TFT to store a potential respect to the displaying voltage signal and having the driving TFT generate a steady current flowing through the OLED. The capacitor has a second end provided with a second scanning voltage signal, which has a level range larger than that of the displaying voltage signal, partially overlapping with the first scanning voltage signal so as to generate a negative bias in the driving TFT.
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AU Optronics Corporation
Nguyen Kevin M
Thomas Kayden Horstemeyer & Risley LLP
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