Abstract: A display substrate (20) and a display device (40). The display substrate (20) comprises a base substrate and a plurality of sub-pixels (100) located on the base substrate. Each sub-pixel (100) comprises a pixel circuit and a pixel electrode (134) electrically connected to the pixel circuit, and each pixel circuit comprises a driving sub-circuit. The pixel electrodes (134) each comprises an electrode body part (140) and a first electrode extension part (142) extending from the electrode body part (140). The display substrate (20) comprises first-type sub-pixels. The electrode body part (140) of each first-type sub-pixel (100) does not overlap a control electrode of the driving sub-circuit of the sub-pixel or an electrode part directly electrically connected to the control electrode, and the first electrode extension part (142) of each pixel electrode (134) at least partially overlaps the control electrode or the electrode part.

Abstract: A shift register unit and a control method thereof, a gate driving circuit, and a display device are provided. The shift register unit comprises: a first control circuit (110) and an energy storage circuit (150), which directly control the potential of a first node (Q1); a pull-down control circuit (120), a second control circuit (130) and a first pull-down circuit (140), which indirectly control the potential of the first node (Q1); and an output circuit (160), which outputs, under the control of the potential of the first node (Q1), a first voltage signal provided by a first voltage end (VDD) to a signal output end. By means of the shift register unit, the control method thereof and the gate drive circuit, the pulse width of a gate scanning signal can be adjusted, thereby meeting various display requirements.

Abstract: Method for image acquisition in an ultrasonic biometric imaging device, the method comprising: determining a target area of a touch surface; by a plurality of ultrasonic transducers arranged at a periphery of the touch surface, emitting a shaped ultrasonic beam towards the target area using transmit beamforming; by the ultrasonic transducers, receiving reflected ultrasonic echo signals defined by received RF-data, the reflected ultrasonic echo signals resulting from interactions with an object in contact with the touch surface at the target area; subtracting background RF-data from the received RF-data to form a clean image; performing receive side beamforming to form a reconstructed image from the clean image; and for a plurality of reconstructed images resulting from a plurality of emitted ultrasonic beams for a given target area, adding the plurality of reconstructed images to form a summed image.

Abstract: There are provided a display panel with a touch detection function, a drive circuit, and an electronic unit, which make it possible to realize many functions related to touch detection. The display panel includes: one or more display elements; one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes; and one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend.

Abstract: A display device includes a pixel, wherein the pixel has a driving transistor, a monitoring transistor connected to the driving transistor, and a resistor provided in the pixel, and having one end connected between the driving transistor and the monitoring transistor, and the display device is capable of detecting a temperature of the pixel in accordance with a value of current that flows through the resistor and the monitoring transistor.

Abstract: One variation of a method for detecting an input at a touch sensor—including a force-sensitive layer exhibiting variations in local resistance responsive to local variations in applied force on a touch sensor surface and a set of drive and sense electrodes—includes: driving a drive electrode with a drive signal; reading a sense signal from a sense electrode; detecting a alternating-current component and a direct-current component of the sense signal; in response to a magnitude of the direct-current component of the sense signal falling below a threshold magnitude, detecting an input on the touch sensor surface during the scan cycle based on the alternating-current component of the sense signal; and, in response to the magnitude of the direct-current component of the sense signal exceeding the threshold magnitude, detecting the input on the touch sensor surface during the scan cycle based on the direct-current component of the sense signal.

Abstract: An electronic device with a rollable display may include the operations of: obtaining global burn-in information and local burn-in information according to a designated sampling period; on the basis of the result of analyzing the global burn-in information, predicting whether burn-in will at least partially occur in the entire area of a display area; when burn-in is predicted to at least partially occur in a boundary area, generating a first compensation map including pieces of local compensation data calculated to correspond to m block areas of the boundary area, respectively; when burn-in is predicted to at least partially occur in an area remaining after excluding the boundary area from the entire area, generating a second compensation map including pieces of global compensation data calculated to correspond to n block areas of the entire area, respectively; and controlling the rollable display to display image data compensated on the basis of the first compensation map or the second compensation map.

Abstract: A processor-implemented anti-spoofing method includes: extracting an input embedding vector from input biometric information; obtaining a fake embedding vector of a predetermined fake model based on fake biometric information; obtaining either one or both of a real embedding vector of a predetermined real model and an enrolled embedding vector of an enrollment model the enrollment model being generated based on biometric information of an enrolled user; determining a confidence value of the input embedding vector based on the fake embedding vector and either one or both of the real embedding vector and the enrolled embedding vector; and determining whether the input biometric information is forged, based on the confidence value.

Abstract: An image acquisition device includes a single sensor having organic photodetectors, an angular filter, and a color filter. The color filter has one or a plurality of first portions adapted to give way to at least one wavelength in the visible range, and one or a plurality of second portions filtering wavelengths outside of red and/or near infrared. The second portion has a surface area approximately equal to a surface area of one of the photodetectors or a surface area greater than or equal to the surface area of four of the photodetectors.

Abstract: The present disclosure provides a fingerprint collection method. When a fingerprint sensor is integrated on any function key of a terminal, a failure of a fingerprint application function that is caused when a user unintentionally operates a function key can be avoided. The method includes: obtaining, by a terminal, a fingerprint collection instruction, where the fingerprint collection instruction is used to instruct to collect a fingerprint by using a fingerprint sensor integrated on a function key; collecting, by the terminal by using the fingerprint sensor based on the fingerprint collection instruction, fingerprint information recorded by a user on the function key; obtaining, by the terminal on the function key at any moment of collecting the fingerprint information, a first key event triggered by the user, where the first key event is any operation other than a fingerprint recording event; and discarding, by the terminal, the first key event.

Abstract: In an embodiment, an electronic device includes a display and processing circuitry. The display includes a plurality of pixels arranged in a plurality of rows, wherein a first grouping of the plurality of rows displays image content during a first portion of an image frame, and wherein a second grouping of the plurality of rows displays image content during a second portion of the image frame. The processing circuitry is operatively coupled to the display and determines a velocity associated with the image content displayed by the first grouping of the plurality of rows moving across the display and adjusts a position of the image content displayed by the second grouping of the plurality of rows during the second portion of the image frame.

Abstract: A method of an optical navigation device having a plurality of different tracking modes includes: using an image sensor to sense and generate a plurality of image frames; and, controlling and changing a tracking mode of the optical navigation device from a first tracking mode into a second tracking mode in response to an event that the optical navigation device changes from a first surface operation condition into a second surface operation condition.

Abstract: An optical navigation device, comprising: an optical sensor, configured to sense optical data; and a processing circuit, configured to compute motions of the optical navigation device based on the optical data, and configured to output the motions, wherein a first CPI is set to the processing circuit. The processing circuit receives a calibration command to calibrate the first CPI to a second CPI, wherein the second CPI is computed via following steps: (a) computing a real CPI corresponding to times of motions output by the processing circuit during a time interval that a relative displacement between the optical navigation device and a surface reaches a first predetermined distance; (b) computing a ratio between the real CPI and the first CPI or a difference between the real CPI and the first CPI; and (c) generating the second CPI based on the ratio or the difference.

Abstract: A display device with a touch detection device is provided and includes display elements that are surrounded by scan lines each extending in first direction and signal lines each extending in second direction crossing first direction; touch detection electrodes opposed to display elements; metal wires disposed on each of touch detection electrodes and extending along signal lines, wherein metal wires being overlapped with corresponding one of signal lines, wherein metal wires are disposed without crossing each other and spaced from each other.

Abstract: According to one embodiment, a display device includes a substrate, a circuit layer including a metal-made feed line in a surrounding area, an insulating layer covering the circuit layer, a lower electrode, a rib, a partition above the rib, an upper electrode connected to the partition, an organic layer between the electrodes and a conductive layer connected to the partition. The partition and the conductive layer each includes a metal-made lower portion and an upper portion protruding from a side surface of the lower portion. The lower portion of the conductive layer and the feed line are in contact with each other in the first contact portion in the surrounding area.

Abstract: A display device includes: a display panel, a data driver, and a scan driver. The data driver outputs data signals during a writing frame and outputs a bias voltage during a holding frame. The data driver includes a plurality of driving chips, and each of the driving chips includes: a gamma voltage generator, a data converter, a main output part for outputting corresponding data signals of the data signals during the writing frame, and a sub-output part for outputting the bias voltage during the holding frame. The gamma voltage generator of a selected driving chip among the plurality of driving chips is electrically connected to the sub-output parts disposed in the plurality of driving chips, respectively.

Abstract: In non-limiting examples of the present disclosure, systems, methods and devices for enabling real-time gestures on shared canvases are presented. A shared object service may be associated with a plurality of shared objects. A plurality of user accounts and/or client devices may be granted access to a shared object. Each client device that accesses the shared object may store a distributed data structure locally that corresponds to the shared object. When client devices perform operations associated with the shared object the operations are logged by the shared object service and timestamped. Those operations are then reported to the client devices, where cursor movements can be rendered in real time. If cursor movements and/or user input device operations associated with a cursor meet conditions for a gesture operation the cursor may be transformed to a gesture/animation and rendered on canvases of each connected client device.

Abstract: A display apparatus which is connected to a controller and capable of precisely and quickly shifting the display position of a pointer to the position of a desired object in a three-dimensional display area. When a two-dimensional directional command has not been issued on the controller by an operator, the display apparatus shifts into a first operation state in which a display position of the pointer is shifted according to the tilt and/or displacement of the controller. When a two-dimensional directional command has been issued on the controller by the operator, the display apparatus shifts into a second operation state in which the display position of the pointer is shifted based on two coordinate axes in the display area according to the directional command issued on the controller. In the second operation state, the two coordinate axes are varied according to the tilt of the external control apparatus.

Abstract: A foldable device includes: a flexible display configured to display an execution screen of an application; and a controller configured to control the flexible display to display an execution screen of at least one first application on a first surface of the flexible display that is used as a display of the foldable device when the flexible display is folded, and control, in response to the flexible display being unfolded, the flexible display to display the execution screen of the at least one first application and an execution screen of at least one second application related to the at least one first application to be displayed on a second surface of the flexible display that is used as a display of the foldable device when the flexible display is unfolded.

Abstract: Apparatuses, systems, and methods are provided for ultrasonic fingerprint sensors that feature an ultrasonic transmitter and multiple subsets of ultrasonic sensor pixels, each subset of ultrasonic sensor pixels associated with a different ultrasonically sensitive display surface, at least two of which are non-coplanar with one another. In some implementations, the ultrasonically sensitive display surfaces may be provided by different portions of a flexible display that has been flexed into a configuration in which two or more portions thereof are non-coplanar. In some instances, a controller may be provided that selectively reads ultrasonic sensor signals from subset(s) of the ultrasonic sensor pixels that are associated with the ultrasonically sensitive display surfaces that a touch-sensing system indicates are experiencing touch events.