TOUCH PANEL, DISPLAY PANEL, AND DISPLAY UNIT
First Claim
1. A touch panel comprising:
- a plurality of detection scan electrodes extending in a first direction; and
a plurality of detection electrodes provided to face the plurality of detection scan electrodes and extending in a second direction which intersects the first direction, the plurality of detection electrodes having a first detection electrode and a second detection electrode,wherein a ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and the first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and the second detection electrode, the one or more selected detection scan electrodes being selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first detection electrode and the second detection electrode being selected from the plurality of detection electrodes.
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Accused Products
Abstract
A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise, are provided. The touch panel includes: a plurality of detection scan electrodes extending in a first direction; and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. A ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and a first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and a second detection electrode. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.
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Citations
17 Claims
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1. A touch panel comprising:
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a plurality of detection scan electrodes extending in a first direction; and a plurality of detection electrodes provided to face the plurality of detection scan electrodes and extending in a second direction which intersects the first direction, the plurality of detection electrodes having a first detection electrode and a second detection electrode, wherein a ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and the first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and the second detection electrode, the one or more selected detection scan electrodes being selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first detection electrode and the second detection electrode being selected from the plurality of detection electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A display panel comprising:
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a plurality of pixel electrodes; a common electrode provided to face the plurality of pixel electrodes; a display function layer having a display function; a plurality of detection scan electrodes extending in a first direction; and a plurality of detection electrodes provided to face the plurality of detection scan electrodes and extending in a second direction which intersects the first direction, the plurality of detection electrodes having a first detection electrode and a second detection electrode, wherein a ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and the first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and the second detection electrode, the one or more selected detection scan electrodes being selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first detection electrode and the second detection electrode being selected from the plurality of detection electrodes.
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11. A display panel comprising:
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a plurality of pixel electrodes; a plurality of common electrodes provided to face the plurality of pixel electrodes and extending in a first direction; a display function layer having a display function; and a plurality of detection electrodes provided to face the plurality of the common electrodes and extending in a second direction which intersects the first direction, the plurality of detection electrodes having a first detection electrode and a second detection electrode, wherein a ratio of fringe capacitance to total capacitance between one or more selected common electrodes and the first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected common electrodes and the second detection electrode, the one or more selected common electrodes being selected, in a desired unit, from the plurality of common electrodes, to be supplied with a selection pulse, and each of the first detection electrode and the second detection electrode being selected from the plurality of detection electrodes.
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12. A display unit comprising:
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a plurality of pixel electrodes; a common electrode provided to face the plurality of pixel electrodes; a display function layer having a display function; a plurality of detection scan electrodes extending in a first direction; a plurality of detection electrodes provided to face the plurality of detection scan electrodes and extending in a second direction which intersects the first direction, the plurality of detection electrodes having a first detection electrode and a second detection electrode; a first drive section allowing the display function of the display function layer to be performed by applying a signal voltage corresponding to a video signal between each of the pixel electrode and the common electrode; a second drive section applying a selection pulse to the plurality of detection scan electrodes; and a detection section detecting an external proximity object on the basis of a detection signals obtained from the plurality of detection electrodes, wherein a ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and the first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and the second detection electrode, the one or more selected detection scan electrodes being selected, in a desired unit, from the plurality of detection scan electrodes by the second drive section, to be supplied with a selection pulse, and each of the first detection electrode and the second detection electrode being selected from the plurality of detection electrodes. - View Dependent Claims (13, 14, 15)
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16. A display unit comprising:
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a plurality of pixel electrodes; a plurality of common electrodes provided to face the plurality of pixel electrodes and extending in a first direction; a display function layer having a display function; a plurality of detection electrodes provided to face the plurality of the common electrodes and extending in a second direction which intersects the first direction, the plurality of detection electrodes having a first detection electrode and a second detection electrode; a drive section allowing the display function of the display function layer to be performed by applying a signal voltage corresponding to a video signal between each of the pixel electrode and the common electrode, and applying a selection pulse to the plurality of common electrodes; and a detection section detecting an external proximity object on the basis of a detection signals obtained from the plurality of detection electrodes, wherein a ratio of fringe capacitance to total capacitance between one or more selected common electrodes and the first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected common electrodes and the second detection electrode, the one or more selected common electrodes being selected, in a desired unit, from the plurality of common electrodes by the second drive section, to be supplied with a selection pulse, and each of the first detection electrode and the second detection electrode being selected from the plurality of detection electrodes. - View Dependent Claims (17)
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Specification