Capacitive Touch Panel with Low Coupling Capacitance and Display Device Using the Capacitive Touch Panel
First Claim
1. A capacitive touch panel comprising:
- a plurality of first direction electrode strings, wherein a plurality of first electrodes are disposed on each of the first direction electrode strings;
a plurality of second direction electrode strings, wherein a plurality of second electrodes are disposed on each of the second direction electrode strings, and each of the second electrodes is disposed between the first electrodes of the adjacent first direction electrode strings; and
a dielectric layer disposed between the first direction electrode strings and the second direction electrode strings;
wherein width of the first electrode decreases from middle of the first electrode to two sides of the first electrode along the second direction, each of the first electrodes includes a perimeter, and a quarter of the perimeter closest to and facing the second electrode has a first slope change rate and a different second slope change rate.
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Accused Products
Abstract
A capacitive touch panel and a display device using the capacitive touch panel are provided. The capacitive touch panel includes a plurality of first direction electrode strings and second direction electrode strings. Each first direction electrode string has a plurality of first electrodes while each second direction electrode has a plurality of second electrodes. In order to reduce the lateral capacitance between adjacent electrodes, width of the first electrode is reduced from the middle to two sides of the electrode along a second direction. In addition, the first electrode has a perimeter surrounding itself. Each quarter of the perimeter of the first electrode facing the adjacent second electrode has a first slope change rate and a different second slope change rate.
33 Citations
22 Claims
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1. A capacitive touch panel comprising:
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a plurality of first direction electrode strings, wherein a plurality of first electrodes are disposed on each of the first direction electrode strings; a plurality of second direction electrode strings, wherein a plurality of second electrodes are disposed on each of the second direction electrode strings, and each of the second electrodes is disposed between the first electrodes of the adjacent first direction electrode strings; and a dielectric layer disposed between the first direction electrode strings and the second direction electrode strings; wherein width of the first electrode decreases from middle of the first electrode to two sides of the first electrode along the second direction, each of the first electrodes includes a perimeter, and a quarter of the perimeter closest to and facing the second electrode has a first slope change rate and a different second slope change rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A capacitive touch panel comprising:
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a plurality of first direction electrode strings, wherein each of the first direction electrodes strings includes a plurality of first electrodes; a plurality of second direction electrode strings, wherein each of the second direction electrode strings includes a plurality of second electrodes disposed between the adjacent first direction electrode strings; and a dielectric layer disposed between the first direction electrode strings and the second direction electrode strings; wherein the first electrodes are polygons except for quadrilaterals. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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Specification