Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Reexamination Certificate
2007-11-06
2007-11-06
Ton, Toan (Department: 2871)
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
C349S043000
Reexamination Certificate
active
10963800
ABSTRACT:
A four-mask process and a three-mask process proposal are constructed for a TN-type liquid crystal display device and an IPS-type liquid crystal device in which the formation of a passivation insulating layer is not required by streamlining the formation of a scan line and a pseudo-pixel element, both comprising a laminate made of a transparent conductive layer and a metal layer, at the same time and the formation of the transparent conductive pixel electrode by removing the metal layer on the pseudo-pixel electrode at the time of the formation of the opening in the gate insulating layer, by streamlining the treatment of the formation process of the contact and the formation process of the protective insulating layer using one photomask due to the introduction of half-tone exposure technology, and the formation of source-drain wires for etch-stop type insulating gate-type transistor using a photosensitive organic insulating layer and leaving the photosensitive organic insulating layer unchanged on source-drain wires or on the source wire (signal line), or by forming an anodized layer, which is an insulating layer, on source-drain wires.
REFERENCES:
patent: 6124904 (2000-09-01), Sato
patent: 6417906 (2002-07-01), Ohta et al.
patent: 6493046 (2002-12-01), Ueda
patent: 2003/0038901 (2003-02-01), Baek et al.
AU Optronics Corporation
Bacon & Thomas PLLC
Ton Toan
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