Touch input device
First Claim
Patent Images
1. A touch input device which detects a pressure of a touch on a touch surface, the touch input device comprising:
- a display module;
a substrate for blocking electrical noise or for separating the display module from a circuit board or battery for operation of the touch input device; and
an electrode which is disposed at a position where a distance between the electrode and a reference potential layer is changed by the touch on the touch surface,wherein a spacer layer is disposed between the reference potential layer and the electrode,wherein a pressure magnitude of the touch is detected based on a capacitance detected from the electrode, and the capacitance is changed depending on the distance between the electrode and the reference potential layer,wherein the display module is bent by the touch, and the distance between the electrode and the reference potential layer is changed due to the bending of the display module,wherein the reference potential layer is the substrate or the display module or is positioned within the display module,wherein, when the reference potential layer is the substrate, the electrode is disposed on a bendable surface of the display module,wherein the spacer layer is maintained with a predetermined thickness only by a supporting structure which is made of inelastic material and located only in an edge portion of the substrate, andwherein the supporting structure is located between the display module and the substrate which is under the display module.
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Abstract
A touch input device capable of detecting a pressure of a touch on a touch surface may be provided that includes a substrate and a display module. The touch input device further includes an electrode which is disposed at a position where a distance between the electrode and a reference potential layer is changed by the touch on the touch surface. The distance may be changed depending on a magnitude of a pressure of the touch. The electrode outputs an electrical signal according to the change of the distance. A spacer layer is disposed between the reference potential layer and the electrode.
57 Citations
24 Claims
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1. A touch input device which detects a pressure of a touch on a touch surface, the touch input device comprising:
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a display module; a substrate for blocking electrical noise or for separating the display module from a circuit board or battery for operation of the touch input device; and an electrode which is disposed at a position where a distance between the electrode and a reference potential layer is changed by the touch on the touch surface, wherein a spacer layer is disposed between the reference potential layer and the electrode, wherein a pressure magnitude of the touch is detected based on a capacitance detected from the electrode, and the capacitance is changed depending on the distance between the electrode and the reference potential layer, wherein the display module is bent by the touch, and the distance between the electrode and the reference potential layer is changed due to the bending of the display module, wherein the reference potential layer is the substrate or the display module or is positioned within the display module, wherein, when the reference potential layer is the substrate, the electrode is disposed on a bendable surface of the display module, wherein the spacer layer is maintained with a predetermined thickness only by a supporting structure which is made of inelastic material and located only in an edge portion of the substrate, and wherein the supporting structure is located between the display module and the substrate which is under the display module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A touch input device which detects a pressure of a touch on a touch surface, the touch input device comprising:
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a display module; a substrate for blocking electrical noise or for separating the display module from a circuit board or battery for operation of the touch input device; and a first electrode disposed on the display module and a second electrode disposed on the substrate, wherein a spacer layer is disposed between the first electrode and the second electrode, wherein a pressure magnitude of the touch is detected based on a capacitance between the first electrode and the second electrode, and the capacitance is changed depending on the distance between the first electrode and the second electrode, wherein the display module is bent by the touch, and the distance between the first electrode and the second electrode is changed due to the bending of the display module, wherein the first electrode is disposed on a bendable surface of the display module, wherein the spacer layer is maintained with a predetermined thickness only by a supporting structure which is made of inelastic material and located only in an edge portion of the substrate, and wherein the supporting structure is located between the display module and the substrate which is under the display module. - View Dependent Claims (19, 20, 21)
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22. A touch input device which detects a pressure of a touch on a touch surface, the touch input device comprising:
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a display module; a substrate for blocking electrical noise or for separating the display module from a circuit board or battery for operation of the touch input device; and an electrode which is disposed at a position where a distance between the electrode and a reference potential layer is changed by the touch on the touch surface, wherein a spacer layer is disposed between the reference potential layer and the electrode, wherein a pressure magnitude of the touch is detected based on a capacitance detected from the electrode, and the capacitance is changed depending on the distance between the electrode and the reference potential layer, wherein the display module or the substrate is bent by the touch, and the distance between the electrode and the reference potential layer is changed due to the bending of the display module or the substrate, wherein the reference potential layer is the display module or the substrate, wherein the electrode is formed on the substrate or on the display module, wherein the spacer layer is maintained with a predetermined thickness only by a supporting structure which is made of inelastic material and located only in an edge portion of the substrate, and wherein the supporting structure is located between the display module and the substrate which is under the display module. - View Dependent Claims (23, 24)
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Specification