Semiconductor display device and method of driving the same

Details Semiconductor display device and method of driving the same Semiconductor display device and method of driving the same

2006-12-26

2006-12-26

Osorio, Ricardo (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S100000

Reexamination Certificate

active

07154466

ABSTRACT:
In executing the opposing common inverse drive in an active matrix-type semiconductor display device, a gate bias is suppressed to be comparable with that of the conventional inverse drive to avoid a range in which the off current jumps up and, hence, to suppress the leakage of the stored electric charge, thereby to maintain an ON/OFF margin of the pixel TFTs. The gate bias applied to the pixel TFT is maintained to be near the customarily employed voltage to maintain a gate breakdown voltage, and the electric power is consumed in a decreased amount by the drive circuit as a whole, thereby to provide a novel drive circuit. In the semiconductor display device, a tristate buffer is used for a gate signal line drive circuit, and different buffer potentials are applied depending upon a frame in which the opposing common potential assumes a positive sign and a frame in which the opposing common potential assumes a negative sign, thereby to maintain an ON/OFF margin of the pixel TFTs. The voltage amplitude is decreased during the opposing common inverse drive.

REFERENCES:
patent: 5198699 (1993-03-01), Hashimoto et al.
patent: 5220205 (1993-06-01), Shigehara et al.
patent: 5633599 (1997-05-01), Kubota
patent: 5643826 (1997-07-01), Ohtani et al.
patent: 5923962 (1999-07-01), Ohtani et al.
patent: 5936455 (1999-08-01), Kobayashi et al.
patent: 6052104 (2000-04-01), Lee
patent: 6124840 (2000-09-01), Kwon
patent: 07-130652 (1995-05-01), None
patent: 08-078329 (1996-03-01), None
patent: 10-135468 (1998-05-01), None
patent: 10-135469 (1998-05-01), None

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