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US 10,474,290 B2Granted
Electronic device
AssigneeLG Display Co., Ltd.
InventorsJunSeok Oh, JongHee Hwang, JongGu Heo
Life of this patent
Estimating the term…
Abstract
An electronic device is capable of having a minimum sensing pressure with a low value through a resistive type force touch sensing method, wherein the electronic device may include a force sensing panel having a force sensor member whose shape is changed according to a touch pressure applied to a cover window so as to electrically connect first and second electrodes prepared on the same plane and provided in parallel.
Claims30
An electronic device comprising:
- a housing having a receiving space;
- a display module in the receiving space of the housing;
- a cover window covering the receiving space;
- and
- a force sensing panel, which is supported by the housing, for sensing a touch force corresponding to a touch pressure applied to the cover window,
- wherein the force sensing panel includes:
- an electrode part having first and second electrodes disposed in a same plane and being parallel to each other;
- and
- a force sensor member arranged to change shape in response to the touch pressure, and which overlaps the electrode part to electrically connect the first electrode to the second electrode when the touch pressure is applied to the cover window,
- wherein the force sensor member is not in contact with the first electrode and the second electrode while no touch pressure is applied to the cover window, and the force sensor member is in contact with the first electrode and the second electrode in response to the touch pressure to the cover window, the force sensor member creating a resistance between the first electrode and the second electrode when the force sensor member is in contact with the first electrode and the second electrode, wherein the resistance is based on a contact area between the force sensor member and the first electrode and the second electrode.
7 more elements
An electronic device comprising:
- a housing;
- a display module;
- a cover window over the display module;
- and
- a force sensing panel supported by the housing, the force sensing panel including:
- a first electrode;
- a second electrode disposed in a same plane with the first electrode;
- and
- a force sensor member overlapping with and separated from the first electrode and the second electrode by a gap, the force sensor member changing shape to electrically connect the first electrode to the second electrode when touch pressure is applied to the cover window,
- wherein the force sensor member is not in contact with the first electrode and the second electrode while no touch pressure is applied to the cover window, and the force sensor member is in contact with the first electrode and the second electrode in response to the touch pressure to the cover window, the force sensor member creating a resistance between the first electrode and the second electrode when the force sensor member is in contact with the first electrode and the second electrode, wherein the resistance is based on a contact area between the force sensor member and the first electrode and the second electrode.
7 more elements
An electronic device comprising:
- a housing having a receiving space;
- a display module in the receiving space of the housing;
- a cover window covering the receiving space;
- and
- a force sensing panel between the housing and the display module, configured to sense a touch force corresponding to a touch pressure applied to the cover window, the force sensing panel having first and second electrodes being in a same plane and spaced apart from each other on a first substrate and a force sensor member on a second substrate,
- wherein the first and second electrodes and the force sensor member are provided at a predetermined air gap from each other by a spacer such that the force sensor member is not in contact with the first electrode and the second electrode while no touch pressure is applied to the cover window and the air gap increases a space for change of shape in the force sensor member, thereby improving force sensing efficiency of the electronic device when compared to a conventional electronic device that lacks the air gap, and
- wherein the force sensor member is in contact with the first electrode and the second electrode in response to the touch pressure to the cover window, the force sensor member creating a resistance between the first electrode and the second electrode when the force sensor member is in contact with the first electrode and the second electrode.
4 more elements
Dependencies are inferred from the claim text.