System and methods for driving an electro-optical device

Details System and methods for driving an electro-optical device System and methods for driving an electro-optical device

2005-04-26

2005-04-26

Nelms, David (Department: 2818)

Active solid-state devices (e.g., transistors, solid-state diode

Non-single crystal, or recrystallized, semiconductor...

Amorphous semiconductor material

C257S072000, C345S082000, C345S205000

Reexamination Certificate

active

06885029

ABSTRACT:
The invention provides an electronic circuit, a driving method for an electronic circuit, an electro-optical device, a driving method for an electro-optical device, and an electronic apparatus which can reduce the dispersion of the threshold voltages of transistors. A driving transistor, first and second switching transistors, an adjustment transistor, a coupling capacitor, and a holding capacitor form a pixel circuit. The threshold voltage of the adjustment transistor is applied to the gate of the driving transistor. According to the present invention, the luminance gradation of a display element, such as an organic EL element, can be precisely controlled according to a data voltage.

REFERENCES:
patent: 6229506 (2001-05-01), Dawson et al.
patent: 6522315 (2003-02-01), Ozawa et al.
patent: 20030011584 (2003-01-01), Azami et al.
patent: WO9836407 (1998-08-01), None

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