Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-01-31
2006-01-31
Chowdhury, Tarifur R. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S147000
Reexamination Certificate
active
06992738
ABSTRACT:
In a liquid crystal display device includes a pair of substrates between which a liquid crystal layer filled, a plurality of pixel regions each of which includes a pixel electrode and an active element connected to the pixel electrode on a main surface of one of the pair of substrates, the present invention provides a first electrode layer electrically connected to the active element, a color filter layer formed over the first electrode layer and having an opening portion, and a second electrode layer covering the color filter layer, and utilizes the second electrode layer as the pixel electrode by connecting the second electrode layer to the first electrode layer electrically through the opening portion of the color filter layer. Since the liquid crystal display device according to the present invention allows light incident on the liquid crystal layer partially to pass through the opening portion of the color filter layer in each of the pixel regions, the luminance of the displayed image is increased without deteriorating the contrast.
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Hamamoto Tatsuo
Ishihara Katsuyoshi
Chowdhury Tarifur R.
Hitachi Displays Ltd.
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