US US12554287B1
A method of operating a foldable touchscreen device includes detecting self-capacitances sensed in a folding area of the touchscreen using a self-sensing scan by a touchscreen controller, determining a reference strength sensed by the touchscreen in the folding area based on the self-capacitances in the folding area when the device is in a partially folded position, determining temperature information of the touchscreen in the partially folded position, in response to determining that the temperature information of the touchscreen is outside a predetermined temperature window, determining a corrected reference strength from the reference strength based on the temperature information, determining an angle strength for the partially folded position based on the corrected reference strength, and determining whether the device is open or closed based on the angle strength.
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