Electro-optical device

Details Electro-optical device Electro-optical device

1994-05-20

1997-06-24

Sikes, William L.

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

257659, 349 41, G02F 11343

Patent

active

056422130

ABSTRACT:
A liquid-crystal electro-optical device capable of compensating for the operation of any malfunctioning one of TFTs (thin-film transistors) existing within the device if such a malfunction occurs. Plural complementary TFT configurations are provided per pixel electrode. Each complementary TFT configuration consists of at least one p-channel TFT and at least one n-channel TFT. The input and output terminals of the plural complementary TFT configurations are connected in series. One of the input and output terminals is connected to the pixel electrode, while the other is connected to a first signal line. All the gate electrodes of the p-channel and n-channel TFTs included in said plural complementary TFT configurations are connected to a second signal line.

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