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US 10,481,724 B2Granted
Touch screen controller, system and method
AssigneeSamsung Electronics Co., Ltd.
InventorYoon-kyung Choi
Life of this patent
Estimating the term…
Abstract
In one embodiment, the touch screen controller includes a sensing circuit configured to generate touch data and force data by processing a single output signal from a touch panel. The touch data indicates whether a touch input is detected, and the force data indicates an amount of force of the touch input.
Claims19
A touch screen controller, comprising:
- a sensing circuit configured to generate touch data and force data by processing a single output signal from a touch panel, the touch data indicating whether a touch input is detected, and the force data indicating an amount of force of the touch input;
- and
- a driving circuit configured to generate a first modulated signal and a second modulated signal for supply to a first sensing electrode and a second sensing electrode, respectively, of the touch panel, the first modulated signal and the second modulated signal having different modulated characteristics, wherein
- the sensing circuit is further configured receive the single output signal from the first sensing electrode, generate a composite sensing signal from the single output signal, generate a first sensing signal corresponding to the first modulated signal from the composite sensing signal, generate a second sensing signal corresponding to the second modulated signal from the composite sensing signal, and determine the touch data and the force data from the first sensing signal and second sensing signal.
1 more element
A system, comprising:
- a first sensing electrode at a first layer;
- a second sensing electrode at a second layer, the second layer spaced from the first layer, and the second sensing electrode facing the first sensing electrode;
- a supply circuit configured to selectively provide a first modulated signal to the first sensing electrode, and selectively provide a second modulated signal to the second sensing electrode, the first modulated signal and the second modulated signal having different modulated characteristics;
- and
- a sensing circuit configured to generate touch data and force data by processing a single output signal from the first sensing electrode, the touch data indicating whether a touch input is detected, and the force data indicating an amount of force of the touch input.
2 more elements
Dependencies are inferred from the claim text.