A position detection device includes a position detection sensor and selection circuitry. The position detection sensor has first loop electrodes arranged in a first direction and second loop electrodes arranged in a second direction perpendicular to the first direction. The selection circuitry is coupled to the first loop electrodes of the position detection sensor and, in operation, simultaneously selects two of the first loop electrodes, connects a first terminal of each of the two of the first loop electrodes to a first one of two first common terminals, and connects a second terminal of each of the two of first loop electrodes to a second one of the two first common terminals. The two of the first loop electrodes change sequentially over time from a first two of the plurality of first loop electrodes to a last two of the plurality of first loop electrodes.

A position detection device includes a position detection sensor and selection circuitry. The position detection sensor has first loop electrodes arranged in a first direction and second loop electrodes arranged in a second direction perpendicular to the first direction. The selection circuitry is coupled to the first loop electrodes of the position detection sensor and, in operation, simultaneously selects two of the first loop electrodes, connects a first terminal of each of the two of the first loop electrodes to a first one of two first common terminals, and connects a second terminal of each of the two of first loop electrodes to a second one of the two first common terminals. The two of the first loop electrodes change sequentially over time from a first two of the plurality of first loop electrodes to a last two of the plurality of first loop electrodes.

A coordinate calibrating method includes the steps of: (1) reading paper coordinates by adopting two OID sensors, comparing the coordinates read by the two OID sensors with pre-designed coordinates of paper to obtain coordinate deviation of positions of the two OID sensors, and according to the coordinate deviation, calculating an inclination angle value θ generated by the coordinates of the two OID sensors; and (2) according to the coordinate deviation and the inclination angle value, calibrating an actually read coordinate position of a pen by selecting the second OID sensor as a reference point, translating horizontally and vertically coordinates of the pen to be corrected first, and then rotating the coordinates by the angle θ with reference to the second OID sensor, so that the positions of the two OID sensors coincide with pre-designed standard positions, and the coordinate position of the pen is calibrated.

A coordinate calibrating method includes the steps of: (1) reading paper coordinates by adopting two OID sensors, comparing the coordinates read by the two OID sensors with pre-designed coordinates of paper to obtain coordinate deviation of positions of the two OID sensors, and according to the coordinate deviation, calculating an inclination angle value θ generated by the coordinates of the two OID sensors; and (2) according to the coordinate deviation and the inclination angle value, calibrating an actually read coordinate position of a pen by selecting the second OID sensor as a reference point, translating horizontally and vertically coordinates of the pen to be corrected first, and then rotating the coordinates by the angle θ with reference to the second OID sensor, so that the positions of the two OID sensors coincide with pre-designed standard positions, and the coordinate position of the pen is calibrated.

An electronic device may include: a first communication circuit for connecting first communication with a remote input device positioned in the electronic device; a second communication circuit for connecting second communication with an external display device; a wireless charging coil for sensing a change in a magnetic field signal of a remote input device, and outputting an electrical signal according to the change in a magnetic field signal; and a processor electrically connected to the first communication circuit, the second communication circuit, and the wireless charging coil, wherein the processor determines detachment of the electronic device of a remote input device, receives, through wireless communication, a button input signal of the remote input device and sensor data of the remote input device, and can activate one from among a plurality of interactions on the basis of the button input signal and/or the sensor data.

In one embodiment, a stylus with one or more electrodes and one or more computer-readable non-transitory storage media embodying logic for transmitting signals wirelessly to a device through a touch sensor of the device has one or more sensors for detecting movement of the stylus.

In one embodiment, a stylus with one or more electrodes and one or more computer-readable non-transitory storage media embodying logic for transmitting signals wirelessly to a device through a touch sensor of the device has one or more sensors for detecting movement of the stylus.

A touch sensor detector system and method incorporating an interpolated sensor array is disclosed. The system and method utilize a touch sensor array (TSA) configured to detect proximity/contact/pressure (PCP) via a variable impedance array (VIA) electrically coupling interlinked impedance columns (IIC) coupled to an array column driver (ACD), and interlinked impedance rows (IIR) coupled to an array row sensor (ARS). The ACD is configured to select the IIC based on a column switching register (CSR) and electrically drive the IIC using a column driving source (CDS). The VIA conveys current from the driven IIC to the IIC sensed by the ARS. The ARS selects the IIR within the TSA and electrically senses the IIR state based on a row switching register (RSR). Interpolation of ARS sensed current/voltage allows accurate detection of TSA PCP and/or spatial location.

A touch sensor detector system and method incorporating an interpolated sensor array is disclosed. The system and method utilize a touch sensor array (TSA) configured to detect proximity/contact/pressure (PCP) via a variable impedance array (VIA) electrically coupling interlinked impedance columns (IIC) coupled to an array column driver (ACD), and interlinked impedance rows (IIR) coupled to an array row sensor (ARS). The ACD is configured to select the IIC based on a column switching register (CSR) and electrically drive the IIC using a column driving source (CDS). The VIA conveys current from the driven IIC to the IIC sensed by the ARS. The ARS selects the IIR within the TSA and electrically senses the IIR state based on a row switching register (RSR). Interpolation of ARS sensed current/voltage allows accurate detection of TSA PCP and/or spatial location.

A flexible display device including a bending area and a plurality of non-bending areas may include a display substrate including a plurality of transistors and a light-emitting element, a sensing film below the display substrate, and a plurality of metal plates below the sensing film, and the metal plates include a soft magnetic material.