Touch Panel and Display Device Using the Same
First Claim
1. A touch panel, comprising:
- a first substrate;
a sensing electrode structure disposed on the first substrate for producing a first capacitance between the sensing electrode structure and an exterior object;
a second substrate parallel to the first substrate;
a soft spacer layer interposed between the first substrate and the second substrate for maintaining a gap between the first substrate and the second substrate; and
a shielding layer disposed on the second substrate, electrically connected to a ground side, and used for producing a second capacitance between the shielding layer and the sensing electrode structure when the exterior object is pressed and causes the gap to vary, wherein the quantity of variation in the first and second capacitances is used for detecting a touch-control action of the exterior object, wherein the shielding layer is made from a transparent conductive material.
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Accused Products
Abstract
A touch panel includes a first substrate, a sensing electrode structure, a second substrate, a soft spacer layer and a shielding layer. The first substrate and the second substrate are parallel to each other, and the soft spacer layer is interposed between the first substrate and the second substrate for maintaining a gap between the first substrate and the second substrate. The sensing electrode structure is disposed on the first substrate for producing a first capacitance between the sensing electrode structure and an exterior object. The shielding layer is disposed on the second substrate, electrically connected to a ground side, and used for producing a second capacitance between the shielding layer and the sensing electrode structure when the exterior object is pressed and causes the gap to vary. The quantity of variation in the first and second capacitances is used for detecting a touch-control action of the exterior object.
72 Citations
24 Claims
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1. A touch panel, comprising:
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a first substrate; a sensing electrode structure disposed on the first substrate for producing a first capacitance between the sensing electrode structure and an exterior object; a second substrate parallel to the first substrate; a soft spacer layer interposed between the first substrate and the second substrate for maintaining a gap between the first substrate and the second substrate; and a shielding layer disposed on the second substrate, electrically connected to a ground side, and used for producing a second capacitance between the shielding layer and the sensing electrode structure when the exterior object is pressed and causes the gap to vary, wherein the quantity of variation in the first and second capacitances is used for detecting a touch-control action of the exterior object, wherein the shielding layer is made from a transparent conductive material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A touch panel, comprising:
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a soft substrate having a first surface and a second surface opposite to the first surface; a sensing electrode structure disposed on the first surface for producing a first capacitance between the sensing electrode structure and an exterior object; a plurality of conductive electrode wires disposed on the sensing electrode structure and located at a plurality of edges of the sensing electrode structure; an insulating protection layer covering the conductive electrode wires and the sensing electrode structure; and a shielding layer disposed on the second surface, electrically connected to a ground side, and used for producing a second capacitance between the shielding layer and the sensing electrode structure when the exterior object presses the soft substrate and causes the thickness of the soft substrate to vary, wherein the quantity of variation in the first and second capacitances is used for detecting a touch-control action of the exterior object, the shielding layer is made from a transparent conductive material. - View Dependent Claims (13)
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14. A touch display device, comprising:
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a first substrate; a sensing electrode structure disposed on the first substrate for producing a first capacitance between the sensing electrode structure and an exterior object; a second substrate parallel to the first substrate; a soft spacer layer interposed between the first substrate and the second substrate for maintaining a gap between the first substrate and the second substrate; a shielding layer disposed on the second substrate, electrically connected to a ground side, and used for producing a second capacitance between the shielding layer and the sensing electrode structure when the exterior object is pressed and causes the gap to vary, wherein the quantity of variation in the first and second capacitances is used for detecting a touch-control action, the shielding layer is made from a transparent conductive material; a third substrate parallel to the second substrate and having an active pixel array structure; and a liquid crystal layer interposed between the second substrate and the third substrate. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A touch display device, comprising:
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a first substrate being a soft substrate and having a first surface and a second surface opposite to the first surface; a sensing electrode structure disposed on the first surface for producing a first capacitance between the sensing electrode structure and an exterior object; a plurality of conductive electrode wires disposed on the sensing electrode structure, and located at a plurality of edges of the sensing electrode structure; an insulating protection layer covering the conductive electrode wires and the sensing electrode structure; a shielding layer disposed on the second surface, electrically connected to a ground side, and used for producing a second capacitance between the shielding layer and the sensing electrode structure when the exterior object presses the first substrate and causes the thickness of the first substrate to vary, wherein the quantity of variation in the first and second capacitances is used for detecting a touch-control action of the exterior object; a second substrate parallel to the first substrate and having an active pixel array; and a liquid crystal layer interposed between the first substrate and the second substrate.
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Specification