Light emitting device and display device

Details Light emitting device and display device Light emitting device and display device

2004-06-18

2008-12-09

Hjerpe, Richard A. (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S039000, C345S045000, C345S046000, C345S080000, C345S082000, C315S169100, C315S169300

Reexamination Certificate

active

07463224

ABSTRACT:
Each pixel in a display device includes an emissive element, a driver transistor, a control transistor, and a control capacitor. The driver transistor is provided between the emissive element and a power supply and controls supply of power from the power supply to the emissive element. The control transistor is connected between a constant voltage power supply and a gate of the driver transistor, receives a digital data signal on a gate, and controls whether or not to fix a gate voltage of the driver transistor. The control capacitor is connected between a control line and the gate of the driver transistor. The gate voltage of the driver transistor is shifted to a voltage corresponding to a control pulse signal when the control transistor is off and is non-fixed during a light emission period defined by the control pulse signal applied to the control line.

REFERENCES:
patent: 6730966 (2004-05-01), Koyama
patent: 6777710 (2004-08-01), Koyama
patent: 6858991 (2005-02-01), Miyazawa
patent: 6861810 (2005-03-01), Rutherford
patent: 7109952 (2006-09-01), Kwon
patent: 2002-149112 (2002-05-01), None

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