Liquid crystal device with shorting ring and transistors for ele

Details Liquid crystal device with shorting ring and transistors for ele Liquid crystal device with shorting ring and transistors for ele

1993-02-05

1994-12-13

Gross, Anita Pellman

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 87, 359 54, 257356, G02F 1343

Patent

active

053733770

ABSTRACT:
An active matrix type liquid crystal display device with a short-circuiting wire for mutually short-circuiting address wires and data wires through the medium of resistors made of a thin-film transistor is formed along the periphery of a display region on an insulating substrate. The short-circuiting wire is electrically connected inside a region in which the resistors made of a thin-film transistor are formed. In one embodiment, the transistors are surrounded by a portion of the shod circuiting wire. In another embodiment, they are partially surrounded by the wire with a gate electrode which is not protruding out. In another embodiment they are formed with two source and drain regions, one which has a lower breakdown voltage than the other.

REFERENCES:
patent: 5087955 (1992-02-01), Futami
patent: 5159477 (1992-10-01), Shimada et al.
patent: 5162901 (1992-11-01), Shimada et al.
patent: 5220443 (1993-06-01), Naguchi
Patent Abstracts of Japan, vol. 11, No. 261 (P-609) (2708), Aug. 25, 1987 & JP-A-62-66231, Mar. 25, 1987.
Patent Abstracts of Japan, vol. 13, No. 572 (P-978), Dec. 18, 1989 & JP-A-1-239531, Sep. 25, 1989.

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