Techniques for detecting touch inputs are described. A system for detecting touch inputs includes force sensors, touch sensors, one or more processors and one or more memories coupled to the processor(s) and configured to provide the processor(s) with instructions. The processor(s) receive force measurements from the force sensor(s) and receive imputed force measurements from the touch sensor(s). Based on at least the imputed force measurements, the processor(s) identify touch inputs. One or more touch input criteria are calibrated based upon the force measurements and the imputed force measurements.

Discussed is a touch screen apparatus according to an embodiment having a flat, curved or bending type display device, and an electronic device including the same. The touch screen apparatus includes a touch sensing circuit for outputting three-dimensional (3D) touch information by sensing a touch position through a first touch sensor and sensing a touch force through a second touch sensor.

There is presented a system and method for detecting mobile device fault conditions, including detecting fault conditions by software operating on the mobile device. In one embodiment, the present invention provides for systems and methods for detecting a that a mobile device has a cracked screen, and reporting the status of the screen, working or not, so that appropriate action may be taken by a third party. In one embodiment, the data obtained by testing of the mobile device is encrypted to prevent tampering or spoofing by the user of the mobile device, and is suitably decrypted by the recipient or software running within a server.

A touch panel that includes a film having piezoelectric properties, the film having a first principal plane and a second principal plane. A divided electrode is on the first principal plane, and a uniform ground electrode is on the second principal plane and arranged opposite to the divided electrode on the first principal plane.

A method of generating a mask overlay for a display corresponding to a touch path, the method including receiving touch path data including touch points corresponding to the touch path, generating vertex points of a vertex array corresponding to the touch points, generating a polygon for a set of the vertex points to define edges of the touch path, determining start and stop edges of the polygon for a row of pixels, generating a list of bin offset values corresponding to the row and including bin offsets for indicating the edges by incrementing a bin offset for each of the start edges, and by decrementing a subsequent bin offset for each of the stop edges, generating an accumulator value corresponding to each of the pixels, determining whether the accumulator values are greater than or equal to zero, and generating the mask overlay by determining whether respective accumulator values is greater than zero.

A device activation system is described. The device activation system includes a sensor and a signal processor. The signal processor receives a disturbance detection signal from the sensor. In response, the signal processor enables detection of a power-on touch input.

Techniques for detecting touch inputs are described. A system for detecting touch inputs includes force sensors, touch sensors, one or more processors and one or more memories coupled to the processor(s) and configured to provide the processor(s) with instructions. The processor(s) receive force measurements from the force sensor(s) and receive imputed force measurements from the touch sensor(s). Based on at least the imputed force measurements, the processor(s) identify touch inputs. One or more touch input criteria are calibrated based upon the force measurements and the imputed force measurements.

One variation of a method includes: defining a first capacitance gradient of capacitance thresholds spanning a capacitive touch sensor; defining a first pressure gradient of pressure thresholds spanning a pressure sensor; reading a capacitance value from the capacitive touch sensor proximal a first location; detecting presence of a first input at the first location in response to the capacitance value exceeding a capacitance threshold assigned to the first location; reading a pressure value from the pressure sensor proximal the first location; detecting presence of a second input proximal the first location in response to the pressure value exceeding a pressure threshold; in response to detecting the first input and detecting the second input: merging the first input and the second input into a confirmed touch input; and generating a first touch image representing the first location and the pressure value of the confirmed touch input.

A display device includes a flexible substrate having a display region including a plurality of pixels, each of the plurality of pixels having a pair of electrodes and a display element therebetween; a first electrode layer provided on the plurality of pixels; a second electrode layer provided on the first electrode layer; a third electrode layer provided on the second electrode layer; a piezoelectric material layer provided between the first electrode layer and the second electrode layer; and a flexible material layer provided between the second electrode layer and the third electrode layer.

One variation of a method for detecting and characterizing force inputs on a surface includes: during a resistance scan cycle of a sampling period, driving a shield electrode arranged over a resistive touch sensor to a reference potential and reading resistance values across sense electrode and drive electrode pairs in the resistive touch sensor; during a processing cycle of the sampling period, transforming the resistance values into a position and a magnitude of a force applied to a tactile surface over the shield electrode, releasing the shield electrode from the reference potential, reading a capacitance value of the shield electrode, and detecting proximity of an object to the tactile surface based on the capacitance value; and generating a touch image representing the position and the magnitude of the force on the tactile surface based on the proximity of the object to the tactile surface.