Method and system for stabilizing thin film transistors in...

Details Method and system for stabilizing thin film transistors in... Method and system for stabilizing thin film transistors in...

2005-02-22

2005-02-22

Wong, Don (Department: 2821)

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

C315S169400, C315S169300, C345S211000

Reexamination Certificate

active

06858989

ABSTRACT:
An active matrix OLED display includes current driving TFT transistors to provide current to corresponding OLEDs. The control signals to each TFT gate include a data signal that is proportional to the desired luminance output for the OLED and a reverse data signal that is used to reverse bias the TFT to prevent threshold drift in the TFT. The data signal alteration is preformed either at a frame rate or at a line rate.

REFERENCES:
patent: 5952789 (1999-09-01), Stewart et al.
patent: 6157356 (2000-12-01), Troutman
patent: 6307322 (2001-10-01), Dawson et al.
patent: 20020030647 (2002-03-01), Hack et al.
patent: 20020047839 (2002-04-01), Kasai
patent: 20020050962 (2002-05-01), Kasai

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