Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Reexamination Certificate
2004-11-10
2010-10-05
Nelms, David (Department: 2871)
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
C349S147000, C349S054000
Reexamination Certificate
active
07808570
ABSTRACT:
An active matrix substrate has: scanning lines extending in row direction and image data lines extending in column direction, formed in display area; semiconductor islands at each cross point and in peripheral circuit area; a first gate insulating film formed on each pixel semiconductor island; a first gate made of a first wiring layer and formed on said first gate insulating film; a second gate insulating film thinner than the first gate insulating film formed on peripheral circuit semiconductor island; and a second gate electrode made of a second wiring layer and formed on the second gate insulating film, wherein the pixel transistor semiconductor island, first gate insulating film and first gate electrode constitute a pixel transistor, and the scanning line includes a lower layer made of the second wiring line and an upper layer made of the first wiring line connected to the lower layer.
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Hotta Kazushige
Ohashi Noriyuki
Watanabe Takuya
Chien Lucy P
Greer Burns & Crain Ltd.
Nelms David
Sharp Kabushiki Kaisha
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