Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-10-26
2009-12-29
Pak, Sung H (Department: 2874)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
Reexamination Certificate
active
07639331
ABSTRACT:
A liquid crystal display device that includes a first substrate, a second substrate, and a liquid crystal material sandwiched between the first and second substrates. In the device, the first substrate includes an active element, a first insulation film formed above the active element, a first electrode formed above the first insulation film, a second insulation film formed above the first electrode, and a second electrode formed above the second insulation film. The second insulation film is a coating insulation film, the first insulation film has a first contact hole, the second insulation film is formed between the first and second electrodes, and inside of the first contact hole, the second insulation film formed inside of the first contact hole is formed with a second contact hole, the second electrode is a pixel electrode, the second electrode is electrically connected to the active element via the second contact hole, and a retention capacity is formed by the first and second electrodes and the second insulation film. The resulting liquid crystal display device of such a configuration causes no short circuit in a height-different portion between electrodes formed on both sides of an insulation film.
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Kimura Yasukazu
Maki Masahiro
Miyazawa Toshio
Ochiai Takahiro
Sonoda Daisuke
Antonelli Terry Stout & Kraus LLP
Hitachi Displays Ltd.
Pak Sung H
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