Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Patent
1998-04-29
2000-09-05
Dudek, James A.
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
G02F 11343
Patent
active
061150894
ABSTRACT:
A liquid crystal display device includes an array substrate provided with pixel electrodes and a counter electrode provided opposite to the array substrate, and a liquid crystal layer held between the array and counter substrates. The liquid crystal layer, and the array and counter electrode define a liquid crystal capacitor. The array substrate disposed on an insulation substrate includes a plurality of signal and scanning lines crossing each other. A thin film transistor is provided in the vicinity of each crossing point. The thin film transistor is connected to the pixel electrode. A storage capacitance is defined between the pixel electrode and a storage capacitance line. A parasitic capacitance is further defined between the pixel electrode and the signal line. The parasitic capacitance is 4% or less of an entire pixel capacitance including the liquid crystal, storage and parasitic capacitance in order to avoid crosstalk between the pixels.
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Dudek James A.
Kabushiki Kaisha Toshiba
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