Abstract: This document describes systems and techniques directed to touch sensor integration with enlarged active area displays. In aspects, a display includes a cover layer, an array of pixels, and a plurality of transistors that control an electrical activation of one or more pixels of the array of pixels. The plurality of transistors define a smaller area than the array of pixels such that at least one pixel of the array of pixels extends beyond the area defined by the plurality of transistors and above driving circuitry (“extended emitting area”). Variable pixel and/or transistor densities can support the extended emitting area. A touch sensor is integrated between the cover layer and the array of pixels and is operatively coupled to one or more touch trace routings that are, at least partially, disposed between the cover layer and one or more pixels within the extended emitting area.

Abstract: A method, apparatus, and computer-readable medium for determining a tolerance specification of a clock synchronization between a touch display device (TDD) and a stylus. In the method, an accumulated timing error between the TDD and the stylus is determined based on crystal inaccuracies of the TDD and the stylus, connection interval of Bluetooth communication between the TDD and the stylus, and a number of consecutive failed transmissions of the Bluetooth communication. A total processing delay is determined based on a first processing delay and a second processing delay. The first processing delay is a time delay of sending a synchronization signal from touch driving circuitry of the TDD to Bluetooth circuitry of the TDD. The second processing delay is a time delay of sending a Bluetooth packet from the TDD to the stylus. The tolerance specification is determined based on the accumulated timing error and the total processing delay.

Abstract: The present disclosure provides an electronic device utilizing a flexible display panel having a plurality of bendable flaps formed in a periphery bending portion of the flexible display panel. The flexible display panel may have a circular shape utilized in a wearable device. An active and touch sensitive area for displaying images and receiving touch input may extend to the periphery bending portion of the flexible display panel, thus providing a wide viewing range and extending touch sensitive area of utilization as well as enhancing an overall aesthetic appearance of the electronic device.

Abstract: The present disclosure provides for an example stack of components for a display of a wearable device. The stack may include a first metal layer, a second metal layer, and an insulation layer separating the first and second metal layers. The first metal layer may be configured to be a touch screen and the second metal layer may be configured to be a near field communication antenna. The first metal layer may be connected to a first integrated circuit chip and the second layer may be connected to a second integrated circuit chip such that the touch sensor and the NFC antenna are on different circuits.

Abstract: The present disclosure provides for an example stack of components for a display of a wearable device. The stack may include a first metal layer, a second metal layer, and an insulation layer separating the first and second metal layers. The first metal layer may be configured to be a touch screen and the second metal layer may be configured to be a near field communication antenna. The first metal layer may be connected to a first integrated circuit chip and the second layer may be connected to a second integrated circuit chip such that the touch sensor and the NFC antenna are on different circuits.

Abstract: An apparatus can comprise a display, a first plurality of electrodes, a second plurality of electrodes, a dummy electrode, and a processor. The processor can cause the apparatus to recognize a contact in response to receiving input on at least one of the first plurality of electrodes and at least one of the second plurality of electrodes and receiving no input on the dummy electrode, and ignore a contact in response to receiving input on the dummy electrode, at least one of the first plurality of electrodes, and at least one of the second plurality of electrodes.

Abstract: Computing devices may include one or more swiping interfaces provided on a base portion and/or a display portion of the computing device. For example, a computing device may include a display disposed within a housing, and a plurality of touch cells in a linear arrangement along an edge portion of the housing. Each of the plurality of touch cells may emit touch fields through the housing at a corresponding surface of the housing. The computing device may also include a processor that can execute machine-readable instructions, allowing the computing device to receive a plurality touch input signals from the plurality of touch cells, and to operate the computing device in response to the received plurality of touch input signals.

Abstract: Computing devices having swiping interfaces and methods of operating the same are disclosed herein. A disclosed example computing device includes a first housing, a display disposed within the first housing, a first plurality of touch cells disposed on an edge of the first housing in a linear arrangement within the first housing outside the display, wherein the first plurality of touch cells emit respective ones of a first plurality of touch fields through the first housing on a first surface of the first housing, a memory storing machine-readable instructions, and a processor to execute the machine-readable instructions to at least receive a first plurality touch input signals from the first plurality of touch cells, and to operate the computing device to unlock the computing according to the first plurality of touch input signals.

Abstract: A method includes detecting a touch on a touch-sensitive display, determining a time of a display update of the touch-sensitive display, and adjusting a scanning rate of scanning electrodes of the touch-sensitive display based on the time of the display update.

Abstract: A method includes detecting a touch on a touch-sensitive display, determining a time of a display update of the touch-sensitive display, and adjusting a scanning rate of scanning electrodes of the touch-sensitive display based on the time of the display update.

Abstract: A method includes detecting a touch on a touch-sensitive display, determining a time of a display update of the touch-sensitive display, and adjusting a scanning rate of scanning electrodes of the touch-sensitive display based on the time of the display update.

Abstract: A control circuit controls detection of both finger-based input and active-stylus-based input as input via a display. In particular, during a single scan period, the control circuit interleaves use of the finger-detection resources with use of the active-stylus-detection resources.

Abstract: A communications device includes a housing and a wireless transceiver and processor carried by the housing and operative with each other. A Near Field Communications (NFC) circuit is carried by the housing and coupled to the processor. A touch screen display is connected to the processor. An NFC antenna is integrated with the touch screen display and coupled to the NFC circuit.

Abstract: A stylus is configured to use a local wireless receiver to assess interference at a transmission frequency that corresponds to the stylus's location-information wireless transmitter. By one approach, the stylus carries out this assessment during transmission nulls for the location-information wireless transmitter. If desired, the wireless receiver can operably couple to (and hence share) a same antenna that operably couples to the location-information wireless transmitter. By one approach, the stylus is configured to change the transmission frequency of the location-information wireless transmitter as a function of determining that the aforementioned assessed transmission frequency is experiencing more than a predetermined level of interference.

Abstract: A control circuit controls detection of both finger-based input and active-stylus-based input as input via a display. In particular, during a single scan period, the control circuit interleaves use of the finger-detection resources with use of the active-stylus-detection resources.

Abstract: An electronic device, computer-readable medium and method provide for line smudging in electronic drawing. The electronic device has a touch sensitive display screen that is responsive to user touch and stylus input. A graphics module is operable to render a line on the touch sensitive display screen in response to motion of the stylus. If a trajectory of the touch input intersects with the line within a set time period after the line is rendered, the line is replaced by a representation of a smudged line. The electronic device may be controllable by instructions stored on a computer-readable medium.

Abstract: A stylus includes a stylus housing that contains a location-beacon transmitter, a wireless receiver, and a control circuit that operably couples to the preceding. By one approach the control circuit is configured to use the location-beacon transmitter to transmit signals as a function of at least one signal received via the wireless receiver. The aforementioned wireless receiver can comprise a Bluetooth™-compatible wireless transceiver that pairs with the corresponding display-based device. The signal received via this wireless receiver can comprise transmission-synchronization information that represents a video-display event for the display-based device such as refreshing the display of the display-based device. In such a case, the signal can comprise a vertical synchronization pulse as sourced by the display-based device. So configured, the stylus can time the transmission of its location-beacon signals to arrive at the display-based device just prior to when the latter refreshes its display.

Abstract: The present disclosure provides for method and apparatus for controlling an application executed on an electronic device dependent upon the orientation of a stylus. The stylus includes a rotation rate sensor, such as a gyroscope. A signal, dependent on the rotation rate, is transmitted from the stylus and received by the electronic device. The stylus orientation may be determined from the rotation rate using an integration circuit to determine a rotation matrix that is applied to an initial orientation vector. The electronic device may use the stylus orientation to determine the handedness of a user, to control properties of a drawing application, or for other purposes.

Abstract: The present disclosure provides a stylus for enabling inputs to be made to a host electronic device. The stylus has multiple antennas that are displaced from each other and the tip of the stylus body. In operation, the antennas are excited to each radiate an electromagnetic field directed towards the tip of the stylus. The radiated electromagnetic fields may be sensed by the host electronic device to determine the position of the tip relative to a sensing surface.

Abstract: A method includes detecting a touch on a touch-sensitive display of an electronic device, displaying information on the touch-sensitive display utilizing touch data of the detected touch, filtering the touch data to produce filtered data, and updating the information displayed based on the filtered data.