Semi-transmissive type liquid-crystal display device and...

Details Semi-transmissive type liquid-crystal display device and... Semi-transmissive type liquid-crystal display device and...

2007-07-18

2009-08-04

Nelms, David (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S113000

Reexamination Certificate

active

07570327

ABSTRACT:
A semi-transmissive type liquid-crystal display device suppresses the reduction and corrosion of the transmission or common electrode due to the cell corrosion reaction with a simple method. In each pixel region, the reflection electrode is formed over the glass plate, where the interlayer insulating film and the barrier metal film intervene between them. The reflection electrode is electrically connected to the transmission electrode by way of the barrier metal film. The transmission electrode and the corresponding scanning line thereto are apart from each other at a distance of 2 μm (preferably, 3 μm) or greater. A developer solution penetrating through the crack formed in the barrier metal film does not reach the transmission electrode (or common electrode), preventing the reduction and corrosion of the transmission or common electrode.

REFERENCES:
patent: 7450197 (2008-11-01), Lee
patent: 10-173191 (1998-06-01), None
patent: 2004-144826 (2004-05-01), None
patent: 2005-266761 (2005-09-01), None

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