Method for measuring intensity of touch pressure in touch input device, and touch input device for detecting intensity of touch pressure
AssigneeMelfas Inc.
InventorsSung Sik Nam, Jin Tae Kim
Life of this patent
Estimating the term…
Abstract
A method for calibrating the intensity of touch input pressure according to an input position in a touch input device. The method includes a step in which the touch input device detects a touch input through a touch panel; a step in which the touch input device determines the position of the touch input on the touch panel; a step in which the touch input device measures a degree of change in capacitance corresponding to the intensity of pressure according to the touch input; and a step in which the touch input device calibrates the intensity of the pressure according to the position of the touch input.
Claims19
A method for measuring touch pressure intensity in a touch input device, the method comprising:
- sensing, by the touch input device, touch input though a touch panel;
- determining, by the touch input device, a position of the touch input on the touch panel;
- measuring, by the touch input device, a degree of change in capacitance according to the touch input;
- compensating, by the touch input device, the degree of change in the capacitance according to the position of the touch input;
- and
- measuring, by the touch input device, pressure intensity according to the touch input on the basis of a compensated degree of change in capacitance.
A touch input device configured to sense touch pressure intensity, the device comprising:
- a first electrode layer including a first electrode;
- a second electrode layer including a second electrode;
- a spacer layer located between the first electrode layer and the second electrode layer;
- and
- a controller circuit configured
- to measure an amount of change in capacitance according to a change in distance between the first electrode layer and the second electrode layer and
- to compensate the amount of change in capacitance according to a touch input position.
A touch input device configured to sense touch pressure intensity, the device comprising:
- a first electrode layer formed on a first insulating film and configured to include a first electrode that extends in a direction parallel to the first insulating film;
- a metal layer of a conductive metal material that extends in a direction parallel to the first electrode layer;
- a spacer layer located between the first electrode layer and the metal layer;
- and
- a controller circuit configured
- to measure an amount of change in capacitance according to a change in a distance between the first electrode layer and the metal layer, and
- to compensate the amount of change in the capacitance according to a touch input position.
Dependencies are inferred from the claim text.