Active matrix organic light emitting diodes pixel circuit

Details Active matrix organic light emitting diodes pixel circuit Active matrix organic light emitting diodes pixel circuit

2006-02-24

2009-08-25

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S076000, C345S055000, C345S204000

Reexamination Certificate

active

07580015

ABSTRACT:
A pixel circuit of an active-matrix organic light-emitting diode does not provide currents for an organic light-emitting diode during a compensation period, and provides currents, free from variation of a threshold voltage of a thin-film transistor, for the organic light-emitting diode during a data input period, so as to improve gray levels, increase contrast ratios, and decrease power consumption.

REFERENCES:
patent: 2004/0066358 (2004-04-01), Numao
patent: 2005/0212446 (2005-09-01), Eom
patent: 2006/0028408 (2006-02-01), Kim
patent: 2006/0043527 (2006-03-01), Kwak
Cheng-Chiu Pai, “Study on the Compensation Circuits of Poly-Si TFTs for Active Matrix Displays”, Jun. 2005, p. 41-46 and 54, National Chiao Tung University, Hsincu, Taiwan, Republic of China.

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