Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Reexamination Certificate
2011-03-29
2011-03-29
Ullah, Akm E (Department: 2874)
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
C349S046000, C349S139000, C349S141000, C257S059000
Reexamination Certificate
active
07916229
ABSTRACT:
A liquid crystal display device includes a gate line on a substrate; a data line crossing the gate line with a gate insulating film interposed between the gate line and the data line to define a pixel region; a thin film transistor at the crossing of the gate line and the data line; a pixel electrode connected to the thin film transistor; a common electrode forming a horizontal electric field with the pixel electrode in the pixel region; a gate pad connected to the gate line; and a data pad connected to the data line, wherein the gate pad and the data pad includes a lower pad in the same layer as the gate line and made of the same material as the gate line, a lower contact hole through the gate insulating film to expose the lower pad, an upper pad in the same layer as the data line, made of the same material as the data line, and connected to the lower pad through the lower contact hole, and an upper contact hole through a passivation film protecting the thin film transistor to expose the upper pad, and a semiconductor layer of the thin film transistor overlaps with the gate electrode of the thin film transistor, and has a width smaller than that of a gate electrode of the thin film transistor.
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Cho Heung Lyul
Kwack Hee Young
Lim Joo Soo
Shin Woo Sup
LG Display Co. Ltd.
Morgan & Lewis & Bockius, LLP
Ullah Akm E
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