Active-matrix light emitting display and method for...

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

Reexamination Certificate

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Details

C315S169100, C345S098000, C345S094000, C345S099000, C345S208000

Reexamination Certificate

active

07038392

ABSTRACT:
An active matrix display includes a plurality of pixels arranged in an array, a first transistor and a second transistor associated with each pixel, the first and second transistors positioned within the array for controlling current flow through each pixel, a light emitting diode associated with each pixel; and a storage capacitor associated with each pixel, wherein, during a time period for establishment of a threshold voltage on the storage capacitor for the first transistor, a voltage equal to the sum of the threshold voltage and a voltage for compensating for turnoff of the second transistor is established on the storage capacitor.

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patent: 6348906 (2002-02-01), Dawson et al.
patent: 6359605 (2002-03-01), Knapp et al.
Dawson, R.M.A., et al.,Design of an Improved Pixel for a Polysilicon Active-Matrix Organic LED Display, SID 98 Digest, pp. 11-14.
Dawson, R.M.A., et al.,The Impact of the Transient Response of Organic Light Emitting Diodes on the Design of Active Matrix OLED Displays, International Electron Devices Meeting, Dec. 6-9, 1998, San Francisco, CA.
Hattori, Reiji, et al.,Current-Writing Active-Matrix Circuit for Organic Light-Emitting Diode Display Using a-Si:H Thin-Film-Transistors, IEICE Trans. Electron., vol. E83-C, No. 5, May 2000, pp. 779-782.
He, Yi, et al.,Electrical Reliability of Two- and Four-a-Si:H TFT Pixel Electrode Circuits for Active-Matrix OLEDs, SID 2000 Digest, pp. 354-357.
Dawson, R.M.A., et al.,A Poly-Si Active-Matrix OLED Display with Integrated Drivers, SID 98 Digest, pp. 438-441.
Wu, Biing-Seng, et al.,A Novel Depletion-Gate Amorphous Silicon Thin-Film Transistor, IEEE Electron Device Letters, vol. 13, No. 1, Jan. 1992, pp. 17-19.

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