Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Patent
1998-06-09
2000-03-14
Sikes, William L.
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
349152, 349122, 438158, 438 30, G02F 1136, G02F 11333, G02F 11345, H01R 1362, H01R 3900
Patent
active
060380039
ABSTRACT:
A liquid crystal display includes a gate bus line, a gate electrode extending from the gate bus line, and a gate pad placed at an end portion of the gate bus line with a first conductive material formed on a substrate. A first insulating material, an intrinsic semiconductor material, a doped semiconductor material and a second conductive material are sequentially deposited on the gate bus line, the gate electrode, and the gate pad. The second conductive material is patterned to form a source bus line, a source electrode extending from the source bus line, a drain electrode, and a source pad at an end portion of the source bus line. A semiconductor layer, a gate insulating layer, and a gate protecting layer covering a first portion of the gate pad are formed by simultaneously patterning the intrinsic semiconductor material and the first insulating material. A passivation layer is formed by depositing a second insulating material over the substrate, the source bus line, the source electrode, the drain electrode, and the source pad, and patterning the passivation layer to expose a second portion of the gate pad and the gate pad protecting layer.
REFERENCES:
patent: 5731856 (1998-03-01), Kim et al.
patent: 5847781 (1998-12-01), Ono et al.
patent: 5926235 (1999-07-01), Han et al.
Kim Joanne
LG. Philips LCD Co. Ltd.
Sikes William L.
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