G06F3/04166

Display device
11550425 · 2023-01-10 · ·

A display device according to an example embodiment includes a display portion displaying an image, and a sense portion that is disposed over one side of the display portion, and senses an external input, wherein the sense portion includes: at least one of first sense electrodes receiving a first sense signal that is changed in response to the external input, at least one of second sense electrodes that are disposed at a distance from the first sense electrodes, wherein the first sense electrodes are disposed between the second sense electrodes, and at least one of compensation electrode that are disposed spaced apart from and between the first sense electrodes, and to which a compensation signal is applied, wherein the compensation signal and the first sense signal are inverted in phase.

TOUCH SENSING IN A FLEXIBLE/FOLDABLE TOUCH SCREEN DISPLAY

A device having a flexible touch screen display configured to display images in at least a first touch area and a second touch area. The first touch area is configured to rotate with respect to the second touch area along a folding axis. A first plurality of touch sensitive column electrodes are integrated into the first touch area, a second plurality of column electrodes are integrated into the second touch area of the flexible display, and a plurality of row electrodes are integrated into and extend across the first touch area and the second touch area. Also included are a plurality of drive-sense circuits that drive sensor signals on the electrodes. A processing module senses, based on the sensor signals, an electrical characteristic of at least one row electrode and at least one column electrode of the first plurality of column electrodes or the second plurality of column electrodes and determines, based on the electrical characteristic, a proximal touch to at least one of the first touch area or the second touch area.

Electronic device configured to detect input
11573659 · 2023-02-07 · ·

An electronic device includes: a display panel configured to display an image; an input sensor on the display panel; and a sensor controller configured to detect a first input by at least one of a plurality of input devices through the input sensor, and wherein the sensor controller is configured to detect the first input during an input detection frame, wherein the input detection frame includes a search section in which a plurality of search signals are provided to the input sensor, and wherein the plurality of search signals include two or more search signals capable of communicating through two or more different protocols, respectively.

Beamforming optimization for segmented thin-film acoustic imaging systems incorporated in personal portable electronic devices

An acoustic imaging system coupled to an acoustic medium to define an imaging surface. The acoustic imaging system includes an array of piezoelectric acoustic transducers formed at least in part from a thin-film piezoelectric material, such as PVDF. The array is coupled to the acoustic medium opposite the imaging surface and formed using a thin-film manufacturing process over an application-specific integrated circuit that, in turn, is configured to leverage on or more beamforming scan operations to drive the array of piezoelectric actuators to generate an image of an object at least partially wetting to the imaging surface.

Low latency input object detection under low ground mass condition

A processing system configured to detect an input object proximate the processing system. The processing system includes sensor circuitry configured to make a determination, when the processing system is in a low ground mass (LGM) state, that a large object is proximate to sensor electrodes of the processing system. The sensor circuitry is further configured, in response to a determination that a large object is proximate the sensor electrodes while the processing system is in the LGM state, to drive a first group of sensor electrodes with one of an inverted signal or a non-inverted signal and drive a second group of sensor electrodes with a static DC voltage.

Displays with integrated touch screens

A display with integrated touch screen includes pixels distributed in an array of rows or pixels connected by row wires and columns of pixels connected by column wires defining a display area on a display substrate. The pixels can comprise mutually exclusive subarrays of pixels forming clusters. Each cluster can be independently controlled and can comprise a touch controller for sensing touches. Each pixel can include one or more micro-iLEDs. A first row wire can be driven with a display signal at the same time the touch controller senses one or more second row wires different from the first row wire. The touch controller can sense multiple row wires at a time or can receive a control signal at a frequency of no less than one MHz on a row wire. In some embodiments, the touch controller comprises a capacitance circuit in an integrated circuit separate from the display substrate.

System and method for touch sensing noise mitigation using sub-burst size

A display controller includes a touch sensing controller configured to drive sensing electrodes with a touch sensing waveform that includes multiple modulations. The touch sensing controller is further configured to halt driving the plurality of sensing electrodes when a number of the modulations satisfies a selected sub-burst size. The touch sensing waveform is synchronized to an instance of a horizontal sync signal.

Audio driver and power supply unit architecture

This disclosure relates to speakers and more specifically to an array speaker for distributing music uniformly across a room. A number of audio drivers can be radially distributed within a speaker housing so that an output of the drivers is distributed evenly throughout the room. In some embodiments, the exit geometry of the audio drivers can be configured to bounce off a surface supporting the array speaker to improve the distribution of music throughout the room. The array speaker can include a number of vibration isolation elements distributed within a housing of the array speaker. The vibration isolation elements can be configured reduce the strength of forces generated by a subwoofer of the array speaker.

Touchscreen display with concurrent touch and display operations

A touchscreen display includes one or more display drivers coupled to an active matrix display and one or more touch controllers coupled to one or more touch sensor conductors. The one or more display drivers are coupled to the active matrix display via active matrix conductive components. When enabled, the one or more display drivers is configured to transmit a first signal to the active matrix display in accordance with display operation. A touch sensor conductor includes one or more segments of the active matrix conductive components. When enabled, a touch controller of the one or more touch controllers is configured to transmit a second signal via the touch sensor conductor in accordance with touchscreen operation that is performed concurrently with the display operation.

Position detection in rollable displays

A method for operating an electronic device, the method including: displacing a rollable touchscreen to a first position along a first direction, a first side of the rollable touchscreen being mounted in a housing, the rollable touchscreen being configured to be rolled into or unrolled out of the housing along the first direction, detecting an active electrode at a first location on the rollable touchscreen, the active electrode being mounted in the housing, and determining the first position of the rollable touchscreen based on the first location, the first positing being indicative of a fractional amount of the rollable touchscreen outside the housing.