Liquid crystal display device and displaying method thereof
First Claim
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1. A liquid crystal display device, comprising:
- liquid crystal formed in a gap between a pair of substrates including at least a single light-transmitting substrate, an electrode which is formed on said substrate to apply a signal waveform electric field from outside to liquid crystal, a mechanism which varies orientation of liquid crystal according to an applied signal waveform, modulates emitted light, and visualizes the modulation, a switching element and a switching electrode connected to the switching element that are formed on a first substrate of said paired substrates, an opposing electrode formed on a second substrate, an insulation film formed on said opposing electrode, and a plurality of sub electrodes formed on said insulation film, wherein an image signal is applied to said switching electrode and an image signal is not applied to said sub electrode and said opposing electrode, wherein when an image signal is applied to said switching electrode, a direction of an electric field applied to said liquid crystal varies between a parallel direction and perpendicular direction to said substrate, depending upon whether a potential of said switching electrode is in phase or in opposite phase with a potential of said sub electrode.
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Abstract
A switching electrode connected to a switching element is provided on a first substrate. An opposing electrode, an insulation film, and a plurality of sub electrodes are provided on a second substrate. Moreover, a resistant film is provided on a first substrate. A switching electrode which is connected to the switching element and an electrode which is not connected to the switching element are provided on the resistant film. An opposing electrode which is not connected to the switching element is provided on the second substrate. Furthermore, a first electrode which is connected to a first switching element and a third electrode which is not connected to the switching element are provided on the first substrate. The first and third electrodes are opposed to the second electrode, which is connected to a second switching element, via an insulator. The opposing electrode which is not connected to the switching element is provided on the second substrate. Thus, a liquid crystal display device can achieve fast response and even display without a blurred moving image.
45 Citations
17 Claims
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1. A liquid crystal display device, comprising:
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liquid crystal formed in a gap between a pair of substrates including at least a single light-transmitting substrate, an electrode which is formed on said substrate to apply a signal waveform electric field from outside to liquid crystal, a mechanism which varies orientation of liquid crystal according to an applied signal waveform, modulates emitted light, and visualizes the modulation, a switching element and a switching electrode connected to the switching element that are formed on a first substrate of said paired substrates, an opposing electrode formed on a second substrate, an insulation film formed on said opposing electrode, and a plurality of sub electrodes formed on said insulation film, wherein an image signal is applied to said switching electrode and an image signal is not applied to said sub electrode and said opposing electrode, wherein when an image signal is applied to said switching electrode, a direction of an electric field applied to said liquid crystal varies between a parallel direction and perpendicular direction to said substrate, depending upon whether a potential of said switching electrode is in phase or in opposite phase with a potential of said sub electrode. - View Dependent Claims (2, 3, 4)
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5. A displaying method of a liquid crystal display device, said device comprising:
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liquid crystal formed in a gap between a pair of substrates including at least a single light-transmitting substrate, an electrode which is formed on said substrate to apply a signal waveform electric field from outside to liquid crystal, a mechanism which varies orientation of liquid crystal according to an applied signal waveform, modulates emitted light, and visualizes the modulation, a switching element and a switching electrode connected to the switching element that are formed on a first substrate of said paired substrates, an opposing electrode formed on a second substrate, an insulation film formed on said opposing electrode, and a plurality of sub electrodes formed on said insulation film, said method comprising the steps of;
preparing said liquid crystal display device, inputting different constant electric signals respectively to said opposing electrode and said sub electrode, and inputting an electric signal to said switching element, said electric signal changing according to an image signal, and wherein when an image signal is applied to said switching electrode, a direction of an electric field applied to said liquid crystal varies between a parallel direction and perpendicular direction to said substrate, depending upon whether a potential of said switching electrode is in phase or in opposite phase with a potential of said sub electrode.
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6. A displaying method of a liquid crystal display device, said device comprising:
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liquid crystal formed in a gap between a pair of substrates including at least a single light-transmitting substrate, an electrode which is formed on said substrate to apply a signal waveform electric field from outside to liquid crystal, a mechanism which varies orientation of liquid crystal according to the applied signal waveform, modulates emitted light, and visualizes the modulation, a switching element and a switching electrode connected to the switching element that are formed on a first substrate of said paired substrates, an opposing electrode formed on a second substrate, an insulation film formed on said opposing electrode, and a plurality of sub electrodes formed on said insulation film, said method comprising the steps of;
preparing said liquid crystal display device, grounding said opposing electrode, applying in-phase voltage to said sub electrodes and said switching electrode so as to provide dark display, and applying voltage with an opposite phase to said sub electrodes and said switching electrode so as to provide bright display, and wherein when an image signal is applied to said switching electrode, a direction of an electric field applied to said liquid crystal varies between a parallel direction and perpendicular direction to said substrate, depending upon whether a potential of said switching electrode is in phase or in opposite phase with a potential of said sub electrode.
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7. A liquid crystal display device, comprising:
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liquid crystal formed in a gap between a pair of substrates including at least a single light-transmitting substrate, an electrode which is formed on said substrate to apply a signal waveform electric field from outside to liquid crystal, a mechanism which varies orientation of liquid crystal according to the applied signal waveform, modulates emitted light, and visualizes the modulation, a switching element and a resistant film formed on a first substrate of said paired substrates, a switching electrode which is connected to said switching element and an electrode which is not connected to said switching element, formed on said resistant film, and an opposing electrode which is not connected to said switching element formed on a second substrate, wherein an image signal is applied to said switching electrode connected to said switching element while an image signal is not applied to said opposing electrode and said electrode which is not connected to said switching element, wherein when an image signal is applied to said switching electrode connected to said switching element, a direction of an electric field, which is applied to said liquid crystal, is varied between a parallel direction and a perpendicular direction to said substrate, depending upon whether a potential of said switching electrode is in phase or in opposite phase with a potential of said electrode which is not connected to said switching element. - View Dependent Claims (8, 9, 10)
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11. A displaying method of a liquid crystal display device, said device comprising:
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liquid crystal formed in a gap between a pair of substrates including at least a single light-transmitting substrate, an electrode which is formed on said substrate to apply a signal waveform electric field from outside to liquid crystal, a mechanism which varies orientation of liquid crystal according to the applied signal waveform, modulates emitted light, and visualizes the modulation, a switching element and a resistant film formed on a first substrate of said paired substrates, a switching electrode, which is connected to said switching element, and a switching electrode, which is not connected to said switching element, formed on said resistant film, and an opposing electrode, which is not connected to said switching element, formed on a second substrate, said method comprising the steps of;
preparing said liquid crystal display device, applying a signal waveform with an opposite polarity respectively to said electrode which is connected to said switching element and said electrode which is not connected thereto on said first substrate so as to generate an electric field in a substantially horizontal direction to a surface of said substrate between said electrode which is connected to said switching element and said electrode which is not connected thereto, applying a signal waveform with the same polarity respectively to said electrode which is connected to said switching element and said electrode which is not connected thereto on said first substrate so as to generate an electric field vertically to a surface of said substrate between said electrode which is connected to said switching element, said electrode which is not connected thereto, and said resistant film, and said grounded opposing electrode, applying an image signal to said switching electrode connected to said switching element and not applying an image signal to said opposing electrode and said electrode which is not connected to said switching element, and when an image signal is applied to said switching electrode connected to said switching element, varying a direction of an electric field, which is applied to said liquid crystal, between a parallel direction and a perpendicular direction to said substrate, depending upon whether a potential of said switching electrode is in phase or in opposite phase with a potential of said electrode which is not connected to said switching element.
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12. A displaying method of a liquid crystal display device, said device comprising:
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liquid crystal formed in a gap between a pair of substrates including at least a single light-transmitting substrate, an electrode which is formed on said substrate to apply a signal waveform electric field from outside to liquid crystal, a mechanism which varies orientation of liquid crystal according to the applied signal waveform, modulates emitted light, and visualizes the modulation, a pair of polarizers, a switching element and a resistant film formed on a first substrate of said paired substrates, a switching electrode, which is connected to said switching element, and a switching electrode, which is not connected to said switching element, formed on said resistant film, and an opposing electrode, which is not connected to said switching element, formed on a second substrate, said method comprising the steps of;
preparing said liquid crystal display device, applying a signal waveform with opposite polarity respectively to said electrode which is connected to said switching element and said electrode which is not connected thereto on said first substrate, so that an electric field is generated in a substantially horizontal direction to a surface of said substrate between said electrode which is connected to said switching element and said electrode which is not connected thereto, so as to provide bright display, applying signal waveforms with the same polarity respectively to said electrode which is connected to said switching element and said electrode which is not connected thereto on said first substrate, so that an electric field is generated vertically to a surface of said substrate between said electrode which is connected to said switching element, said electrode which is not connected thereto, and said resistant film, and said grounded opposing electrode, so as to provide dark display, applying an image signal to said switching electrode connected to said switching element and not applying an image signal to said opposing electrode and said electrode which is not connected to said switching element, and when an image signal is applied to said switching electrode connected to said switching element, varying a direction of an electric field, which is applied to said liquid crystal, between a parallel direction and a perpendicular direction to said substrate, depending upon whether a potential of said switching electrode is in phase or in opposite phase with a potential of said electrode which is not connected to said switching element.
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13. A liquid crystal display device, comprising:
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liquid crystal formed in a gap between a pair of substrates including at least a single light-transmitting substrate, an electrode which is formed on said substrate to apply a signal waveform electric field from outside to liquid crystal, a mechanism which varies orientation of liquid crystal according to the applied signal waveform, modulates emitted light, and visualizes the modulation, a first electrode and a second electrode which are respectively connected to a first switching element and a second switching element, and a third electrode, which is not connected to said switching element, formed on a first substrate of said paired substrates, an insulator, and an opposing electrode, which is not connected to said switching element, formed on said second substrate, said first and third electrodes being opposed to said second electrode via said insulators, wherein an image signal is applied to said first and second electrodes respectively connected to said first and second switching elements while an image signal is not applied to said third electrode and said opposing electrode, wherein when an image signal is applied to said first and second electrodes, a direction of an electric field applied to said liquid crystal varies between a parallel direction and a perpendicular direction to said substrate, depending upon whether a potential of said first and second electrodes is in phase or in opposite phase with a potential of said third electrode. - View Dependent Claims (14, 15, 16)
an orientation film which is formed between a pair of said substrates so as to sandwich said liquid crystal in vertical orientation when no electric field is applied, wherein said liquid crystal enters a horizontal orientation, vertical orientation, or intermediate orientation state by applying an electric field in a substantially horizontal direction to said substrate or applying an electric field perpendicularly to a surface of said substrate. -
16. The liquid crystal display device as defined in claim 13, wherein said liquid crystal is nematic liquid crystal.
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17. A displaying method of a liquid crystal display device, said device comprising:
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liquid crystal formed in a gap between a pair of substrates including at least a single light-transmitting substrate, an electrode which is formed on said substrate to apply a signal waveform electric field from outside to liquid crystal, a mechanism which varies orientation of liquid crystal according to the applied signal waveform, modulates emitted light, and visualizes the modulation, a first electrode and a second electrode which are respectively connected to a first switching element and a second switching element, and a third electrode which is not connected to said switching element, formed on a first substrate of said paired substrates, an insulator, and an opposing electrode, which is not connected to said switching element, formed on a second substrate, said first and third electrodes being opposed to said second electrode via said insulator, said method comprising the steps of;
preparing said liquid crystal display device, applying a signal waveform with opposite polarity to said first to third electrode so as to generate an electric field in a substantially horizontal direction to a surface of said substrate between said first to third electrodes, applying a signal waveform with the same polarity to said first to third electrodes so as to generate an electric field perpendicularly to a surface of said substrate between said first to third electrodes and said opposing electrode formed on said second substrates, applying an image signal to said first and second electrodes respectively connected to said first and second switching elements and not applying an image signal to said third electrode and said opposing electrode, and when an image signal is applied to said first and second electrodes, varying a direction of an electric field applied to said liquid crystal between a parallel direction and a perpendicular direction to said substrate, depending upon whether a potential of said first and second electrodes is in phase or in opposite phase with a potential of said third electrode.
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Specification
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Current AssigneeSharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
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Original AssigneeSharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
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InventorsItoh, Nobuyuki
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Primary Examiner(s)Saras, Steven
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Assistant Examiner(s)Alphonse, Fritz
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Application NumberUS09/667,679Time in Patent Office1,257 DaysField of Search345/87, 345/88, 345/89-104, 345/58, 349/42, 349/49, 349/139, 349/141US Class Current345/87CPC Class CodesG02F 1/134363 for applying an electric fi...G02F 1/134381 Hybrid switching mode, i.e....
