Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Patent
1995-10-31
1998-11-24
Sikes, William L.
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
G02F 11333
Patent
active
058414908
ABSTRACT:
Disclosed are a liquid crystal display device and its fabricating method, which are minimized in the number of contact holes required to be formed in the insulating film, simplified in fabricating processes, prevented from reduction in fabrication yield, and prevented from increase in fabrication cost. In the liquid crystal display device, in which a plurality of image signal lines and a plurality of scan signal lines are provided so as to cross each other via an insulating film, pixel electrodes and switching devices for feeding an image signal to the pixel electrodes are provided in a matrix shape at intersecting points of the image signal lines and the scan signal lines, the switching devices being each composed of at least a gate electrode, the insulating film, a semiconductor film, a source electrode, and a drain electrode, and in which a liquid crystal material is sandwiched between the pixel electrodes and opposite electrodes provided opposite to the pixel electrodes, the liquid crystal display device being characterized in that the pixel electrodes and the drain electrodes of the switching devices are provided on the same side as the insulating film is provided; a short-circuit ring line to which the plurality of image signal lines are connected via a transistor is provided; and that the gate electrode and the source electrode or the drain electrode of the transistor are capacitance-coupled to each other via the insulating film.
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Dudek James A.
Kyocera Corporation
Sikes William L.
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