Active matrix type display device in which elongated electrodes

Details Active matrix type display device in which elongated electrodes Active matrix type display device in which elongated electrodes

1994-12-23

1997-03-11

Gross, Anita Pellman

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

437 40, 349 47, 349110, 349139, 349187, G02F 1136, G02F 11333, G02F 11343, G02F 113

Patent

active

056107366

ABSTRACT:
An active matrix type display device including a plurality of thin film transistors disposed at crossing points of a plurality of scanning lines and a plurality of signal lines, and serving as switching elements for controlling pixels of the display device. Each pixel has a elongated electrode extending in overlapped relation with signal line. A dielectric layer, composed of the same layer as a gate insulating layer and a semiconductor layer, which is the same layer as the active layer of a thin film transistor, is interposed between the signal line and the elongated electrode, and a part of the elongated electrode serves as a electrode of a storage capacitor which is electrically coupled with the pixel.

REFERENCES:
patent: 5339181 (1994-08-01), Kim et al.
patent: 5358809 (1994-10-01), Van Berkel
patent: 5446562 (1995-08-01), Sato
patent: 5459596 (1995-10-01), Ueda et al.
T. Ueda et al., "High-Aperture-Ratio TFT-LCD with a Shield-Electrode Structure", SID 93 Digest, Toshiba R&D Center, Kawasaki, Japan, pp. 739-742.
T. Kitazawa et al., "A 9.5-in. TFT-LCD with an Ultra-High-Aperture-Ratio Pixel Structure", SID Conference Record, Oct. 10-13, 1994, Toshiba Corp., Yokohama, Japan, pp. 365-368.

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