Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1997-07-07
1999-11-02
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349 43, G02F 11343, G02F 1136
Patent
active
059780576
ABSTRACT:
A common line contact of a liquid crystal display is disclosed including a transparent insulating substrate; first common lines formed on a predetermined portion of the substrate, and connected to the storage electrode of a storage capacitor of a thin film transistor, the thin film transistor being in close proximity to the first common lines; a gate bus line formed between the first common lines on the substrate, the gate bus line connecting the gate electrode of the thin film transistor to an input pad; an insulating layer formed on the substrate and gate bus line, other than a predetermined portion of the first common lines; a second common line formed to come into contact with an exposed portion of the first common lines, and connected to a data line on the insulating layer; a passivation layer formed on the second common line; and a protective layer formed on a portion of the passivation layer, which corresponds to a portion where the first and second common lines come into contact with each other. Therefore, the present invention prevents the contact portion of the first and second common lines from being disconnected during the patterning of the pixel electrode, thereby improving the reliability of LCD.
REFERENCES:
patent: 5521728 (1996-05-01), Kodate et al.
patent: 5576857 (1996-11-01), Takemura
patent: 5714769 (1998-02-01), Kim
Kim Joanne
LG Electronics Inc.
Sikes William L.
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