Ferroelectric liquid crystal apparatus having negative dielectric anisotropy and colored film at non-pixel portions
First Claim
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1. A liquid crystal apparatus, comprising:
- a liquid crystal panel comprising scanning electrodes, data electrodes intersecting the scanning electrodes to form an electrode matrix disposed so as to form pixels at intersections of the scanning electrodes and the data electrodes, a colored film disposed on a substrate at spacings between adjacent scanning electrodes or between adjacent data electrodes, a dielectric film disposed on said colored film, and a chiral smectic liquid crystal having a negative dielectric anisotropy, said colored film comprising a resin containing a pigment dispersed therein; and
drive circuitry for applying a scanning signal to the scanning electrodes and applying data signals to the data electrodes, thereby applying a voltage signal for forming a display state at a selected pixel, and for applying an AC voltage to non-selected pixels.
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Abstract
A ferroelectric liquid crystal device, comprises: a plurality of pixel portions having a pair of opposite electrodes, and a plurality of non-pixel portions where a pair of opposite electrodes are not disposed, respectively arranged two-dimensionally; and a ferroelectric liquid crystal disposed between the opposite electrodes and extending over the pixel portions and the non-pixel portions. The non-pixel portions further comprise a colored film having a light-interruption function and a protective film disposed between and preventing direct contact between the colored film and the ferroelectric liquid crystal.
23 Citations
4 Claims
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1. A liquid crystal apparatus, comprising:
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a liquid crystal panel comprising scanning electrodes, data electrodes intersecting the scanning electrodes to form an electrode matrix disposed so as to form pixels at intersections of the scanning electrodes and the data electrodes, a colored film disposed on a substrate at spacings between adjacent scanning electrodes or between adjacent data electrodes, a dielectric film disposed on said colored film, and a chiral smectic liquid crystal having a negative dielectric anisotropy, said colored film comprising a resin containing a pigment dispersed therein; and drive circuitry for applying a scanning signal to the scanning electrodes and applying data signals to the data electrodes, thereby applying a voltage signal for forming a display state at a selected pixel, and for applying an AC voltage to non-selected pixels. - View Dependent Claims (2, 3, 4)
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Specification
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Current AssigneeCanon Kabushiki Kaisha (Canon Inc.)
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Original AssigneeCanon Kabushiki Kaisha (Canon Inc.)
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InventorsKuribayashi, Masaki, Yoshida, Akio, Sekimura, Nobuyuki
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Primary Examiner(s)Sikes, William L.
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Assistant Examiner(s)Duong, Tai V.
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Application NumberUS08/478,679Time in Patent Office615 DaysField of Search359/56, 359/68, 359/79, 359/100, 359/67, 359/54, 359/55, 359/74, 345/87, 345/97US Class Current349/110CPC Class CodesG02F 1/133512 Light shielding layers, e.g...
