Method of improving the stability of active matrix OLED...

Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device

Reexamination Certificate

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C315S169300, C345S204000, C345S212000, C345S082000, C345S092000

Reexamination Certificate

active

07116058

ABSTRACT:
A method of improving the stability of organic light emitting diode (OLED) display devices driven by amorphous silicon thin-film transistors, in which the driving circuitry within each sub-pixel includes a driving transistor for driving organic light emitting diode (OLED), a scanning transistor and a storage capacitance. An end of the capacitance is connected to the signal resetting line, which a resetting time pulse of high potential and low potential are supplied. Since the resetting signals within the sub-pixels are synchronized, a single voltage of the resetting signal can control the positive and negative stresses for each transistor in the sub-pixels on the panel.

REFERENCES:
patent: 6229508 (2001-05-01), Kane
patent: 6501466 (2002-12-01), Yamagishi et al.
patent: 6677713 (2004-01-01), Sung
patent: 6909242 (2005-06-01), Kimura
patent: 6950081 (2005-09-01), Akimoto et al.

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