Touch detection device and liquid crystal display device
AssigneeJapan Display Inc.
InventorsDaisuke ITO, Hiroshi MIZUHASHI, Makoto HAYASHI, Yasuyuki TERANISHI, Tadayoshi KATSUTA
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Abstract
A touch detection device is provided and includes driving electrodes for detecting an external proximity object, extending in first direction and arranged in second direction; first voltage line extending in second direction; second voltage line extending in second direction; third voltage line extending in second direction, third voltage line being narrower in than first voltage line and second voltage line in width; and switching circuit for electrically connecting driving electrodes and first voltage line, second voltage line, or third voltage line.
Claims20
A touch detection device comprising:
- a plurality of driving electrodes for detecting an external proximity object, extending in a first direction and arranged in a second direction;
- a first voltage line extending in the second direction;
- a second voltage line extending in the second direction;
- a third voltage line extending in the second direction, the third voltage line being narrower in than the first voltage line and the second voltage line in width;
- and
- a switching circuit for electrically connecting the plurality of driving electrodes and the first voltage line, the second voltage line, or the third voltage line.
A liquid crystal display device comprising:
- a plurality of common electrodes extending in a first direction and arranged in a second direction;
- a plurality of pixel electrodes for displaying images and arranged so as to oppose to the plurality of common electrodes;
- a first voltage line extending in the second direction;
- a second voltage line extending in the second direction;
- a third voltage line extending in the second direction, the third voltage line being narrower in than the first voltage line and the second voltage line in width;
- and
- a switching circuit for electrically connecting the plurality of common electrodes and one of the first voltage line, the second voltage line and the third voltage line.
A touch detection device comprising:
- a plurality of driving electrodes extending in a first direction and arranged in a second direction for detecting an external proximity object;
- a first voltage line extending in the second direction;
- a second voltage line extending in the second direction;
- a third voltage line extending in the second direction,.
- a switching circuit for electrically connecting the plurality of driving electrodes and the first voltage line, the second voltage line, or the third voltage line;
- and
- a low-pass filter,
- wherein the second voltage line, the third voltage line, and the low-pass filter are electrically connected to one another in an outside of an array including the plurality of driving electrodes.
Dependencies are inferred from the claim text.