Semiconductor device and driving method for semiconductor device

Details Semiconductor device and driving method for semiconductor device Semiconductor device and driving method for semiconductor device

1996-12-24

1999-06-01

Sikes, William L.

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

349 38, G02F 11343

Patent

active

059092629

ABSTRACT:
A liquid crystal display cell includes a voltage amplification function therein for driving the cell with an AC voltage. The cell includes gate lines running in a first direction, a source line running in a second direction different from the first direction, a switching means which is turned on and off by a voltage applied to a first gate line so as to supply a voltage from the source line, a fixed capacitance capacitor is connected to the source line via said switching means, and a variable capacitance capacitor is connected to the source line via said switching means in parallel to said constant capacitor. The variable capacitor is connected to a second gate line which is independent of the first gate line, and the capacitance of the variable capacitor changes according to the voltage applied thereto through a second gate line.

REFERENCES:
patent: 4021788 (1977-05-01), Marr
patent: 4393380 (1983-07-01), Hosokawa et al.
patent: 5191322 (1993-03-01), Katayama et al.
patent: 5369512 (1994-11-01), Yanai et al.

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