Electrode sheet and touch input device
First Claim
1. A touch input device capable of detecting a pressure of a touch on a touch surface, the touch input device comprising:
- a display panel; and
an electrode disposed under the display panel;
wherein, when a pressure is applied to the touch surface, a distance between the electrode and a reference potential layer is changed;
wherein a capacitance which is detected at the electrode is changed according to the distance change;
wherein the display panel comprises a first area and a second area;
wherein a change of the distance between the electrode disposed under the second area and the reference potential layer when a pressure is applied to the second area is less than a change of the distance between the electrode disposed under the first area and the reference potential layer when the same amount of the pressure is applied to the first area; and
wherein, under a same distance change condition for the distance between the electrode and the reference potential layer, a change amount of the capacitance detected at the electrode disposed under the second area is greater than a change amount of the capacitance detected at the electrode disposed under the first area.
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Accused Products
Abstract
A touch input device capable of detecting a pressure of a touch on a touch surface may be provided that includes: a display panel; and an electrode disposed under the display panel. When a pressure is applied to the touch surface, a distance between the electrode and a reference potential layer is changed. A capacitance which is detected at the electrode is changed according to the distance change. The display panel includes a first area and a second area. Under a same distance change condition, a capacitance change amount detected at the electrode disposed under the second area is greater than a capacitance change amount detected at the electrode disposed under the first area.
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Citations
29 Claims
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1. A touch input device capable of detecting a pressure of a touch on a touch surface, the touch input device comprising:
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a display panel; and an electrode disposed under the display panel; wherein, when a pressure is applied to the touch surface, a distance between the electrode and a reference potential layer is changed; wherein a capacitance which is detected at the electrode is changed according to the distance change; wherein the display panel comprises a first area and a second area; wherein a change of the distance between the electrode disposed under the second area and the reference potential layer when a pressure is applied to the second area is less than a change of the distance between the electrode disposed under the first area and the reference potential layer when the same amount of the pressure is applied to the first area; and wherein, under a same distance change condition for the distance between the electrode and the reference potential layer, a change amount of the capacitance detected at the electrode disposed under the second area is greater than a change amount of the capacitance detected at the electrode disposed under the first area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electrode sheet comprising:
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a first insulation layer and a second insulation layer; and an electrode located between the first insulation layer and the second insulation layer; wherein a capacitance which is detected at the electrode is changed according to a relative distance change between the electrode sheet and a reference potential layer which is disposed apart from the electrode sheet; wherein the electrode sheet comprises a first area and a second area; wherein a change of the distance between the electrode disposed in the second area and the reference potential layer when a pressure is applied to the second area is less than a change of the distance between the electrode disposed in the first area and the reference potential layer when the same amount of the pressure is applied to the first area; and wherein, under a same distance change condition for the distance between the electrode and the reference potential layer, a change amount of the capacitance detected at the electrode disposed in the second area is greater than a change amount of the capacitance detected at the electrode disposed in the first area. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A touch input device capable of detecting a pressure of a touch on a touch surface,
the touch input device comprising: -
a display panel; and an electrode disposed under the display panel, the electrode comprising a first electrode and a second electrode; wherein, when a pressure is applied to the touch surface, a distance between the first electrode and the second electrode is changed; wherein a capacitance which is detected at the electrode is changed according to the distance change; wherein the display panel comprises a first area and a second area; wherein a change of the distance between the first electrode and the second electrode under the second area when a pressure is applied to the second area is less than a change of the distance between the first electrode and the second electrode under the first area when the same amount of the pressure is applied to the first area; and wherein, under a same distance change condition for the distance between the first electrode and the second electrode, a change amount of the capacitance detected at the electrode disposed under the second area is greater than a change amount of the capacitance detected at the electrode disposed under the first area. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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Specification