Abstract: A light detection circuit, an electronic device, and an optical recognition method are provided. The light detection circuit includes a charge storage sub-circuit (10), a photoelectric conversion sub-circuit (30), a signal collection sub-circuit (40), and a potential pull-up sub-circuit (50). When a potential of a reading node (A) is decreased by a preset value, the potential pull-up sub-circuit (50) changes the potential of the reading node (A) to an initial potential. A photoelectric diode may continuously generate a light current under the action of light, so that the potential of the reading node (A) is decreased again. Even when the intensity of ambient light is high, a touch can be accurately recognized in an optical touch recognition circuit, and ridge lines and valley lines can be accurately recognized in an optical fingerprint recognition circuit.

Abstract: A touch panel, a method for manufacturing the same and a touch device are provided. The touch panel includes a base substrate, and a touch electrode and an active stylus electrode arranged on the base substrate. The active stylus electrode has a size smaller than the touch electrode. The touch electrode is configured to determine a touch position of a finger, and the active stylus electrode is configured to determine a touch position of an active stylus.

Abstract: A fingerprint identification substrate and a fabrication method thereof, a display panel and a display apparatus are provided. The fingerprint identification substrate includes a base substrate and a plurality of fingerprint identification units on the base substrate. Each fingerprint identification unit includes a photosensitive sense electrode and a thin film transistor which are positioned on the base substrate, the photosensitive sense electrode is positioned between the base substrate and the thin film transistor, and the photosensitive sense electrode is electrically connected with a source electrode or a drain electrode of the thin film transistor.

Abstract: A touch substrate includes a common electrode, a piezoelectric material layer and a touch electrode sequentially disposed on the substrate. The touch electrode includes a plurality of touch driving electrodes and a plurality of touch sensing electrodes, which cross with each other and are insulated from one another. The touch driving electrode includes a plurality of first touch sub-electrodes that are electrically connected. An overlapping area of front projections of the common electrode and each of the first touch control sub-electrodes on the substrate is smaller than an area of a pattern enclosed by a peripheral boundary of the first touch sub-electrodes.

Abstract: Embodiments of the disclosure relate to a fingerprint identification device, a touch display panel, and a method for driving a fingerprint identification device. The fingerprint identification device for identification of a fingerprint of a finger, includes: at least one resonant chamber; and at least one ultrasonic generating and detecting device provided opposite to the at least one resonant chamber; each of the at least one ultrasonic generating and detecting device is configured to generate initial ultrasonic signals having a frequency which is identical to an initial intrinsic frequency of the resonant chamber in a condition of being untouched by the finger, and each of the at least one ultrasonic generating and detecting device is also configured to convert the ultrasonic signals reflected by ridges and valleys of the finger into electrical signals, and to determine information on pattern of the finger depending on the electrical signals.

Abstract: A pixel circuit, an array substrate, a display panel, a display device, and a display driving method are provided. The pixel circuit includes a light emitting element, a pixel driving circuit, and an optical modulation circuit; in a touch stage, turning off the pixel driving circuit, driving the light emitting element to emit a modulated light of a first gray scale by the optical modulation circuit; and in a display stage, turning off the optical modulation circuit, and driving the light emitting element to emit light for display by the pixel driving circuit.

Abstract: The present application discloses a sensing panel, and a display device and a driving method thereof. The sensing includes a base substrate; a plurality of photosensitive units arranged in an array on the base substrate; and a plurality of pressure-sensitive units arranged in an array on the base substrate. The photosensitive units and the pressure-sensitive units are integrated in a same sensing panel, and are stacked and share a fixed-potential electrode. As such, after loading a fixed potential to the fixed-potential electrode, the pressure detection and the touch detection can be achieved simultaneously with the same sensing panel.

Abstract: An array substrate includes a plurality of sub-pixels and at least one light photosensitive detection assembly, and each photosensitive detection assembly corresponds to at least one sub-pixel. The at least one photosensitive detection assembly includes: a photosensitive element and a signal reading element coupled to the photosensitive element and a first reading signal line, the photosensitive element is configured to detect a luminance of a corresponding sub-pixel, and output a light detection signal according to the luminance of the corresponding sub-pixel. The signal reading element is configured to read the light detection signal output by the photosensitive element, and output a first detection signal to the first reading signal line according to the light detection signal.

Abstract: An organic light-emitting diode (OLED) display device and a pressure touch driving method, the OLED display device includes: a silicon substrate; a pixel unit and a magneto-dependent sensor disposed on one side of the silicon substrate; and a magnetic field generator configured to provide magnetic fields running through a plane provided with the magneto-dependent sensor to the magneto-dependent sensor; the magneto-dependent sensor is configured to detect magnetic variation and convert the magnetic variation into a voltage difference for output.

Abstract: The present application discloses a touch display substrate including an array of a plurality of pixels. Each pixel includes a first region and a second region in plan view of the touch display substrate.

Abstract: Embodiments of the present disclosure disclose a display panel, a display apparatus, and a method for manufacturing a display panel. The display panel includes: a display unit comprising an array substrate, a modulation structure and a black matrix having at least one hole, wherein the modulation structure is located between the black matrix and the array substrate; light emitting unit located between the modulation structure and the array substrate, and configured to emit light onto the modulation structure to generate structured light emitted from the modulation structure, so that the structured light passes through the at least one hole; and a light receiving unit, configured to receive reflected structured light obtained by the structured light being reflected by a measured object.

Abstract: Embodiments of the present disclosure provide a method and a device for providing haptic feedback in a virtual reality system. The method includes acquiring state information of one or more virtual objects in a virtual scene presented in the virtual reality system and/or one or more real objects in an external environment of a user using the virtual reality system; generating haptic feedback information according to the state information; and providing haptic feedback to the user according to the haptic feedback information.

Abstract: A touch panel, an electronic device, and a driving method thereof are provided. The touch panel includes: a substrate and a tactile feedback layer, a touch detection circuit and a plurality of driving electrodes located on the substrate. The tactile feedback layer is configured to adjust hardness thereof under control of the driving electrode, the touch detection circuit is configured to provide a plurality of touch detection points, each of the touch detection points corresponding to at least one of the driving electrodes.

Abstract: Disclosed are a pattern recognition device, an array substrate and a display apparatus. The pattern recognition device includes: a base substrate; and a plurality of pattern recognizers on the base substrate, at least one of the plurality of pattern recognizers including a photosensitive structure and an optical path selector. The photosensitive structure includes a first light-shielding electrode, a photoelectric conversion and a second light-shielding electrode which are arranged in a stacked manner, the first light-shielding electrode including a light-transmitting region; and the optical path selector is configured to direct pattern light rays having a predetermined angle with respect to a surface of the pattern recognition device to the light-transmitting region.

Abstract: The present disclosure provides a touch sensing structure, an operating method thereof, a touch substrate, a manufacturing method thereof, and a touch display device. The touch sensing structure includes: first signal lines; second signal lines; a plurality of sensing driving electrodes each connected to a corresponding first signal line and a corresponding second signal line; and a sensing layer in contact with the plurality of sensing driving electrodes. Rigidity of the sensing layer in contact with the sensing driving electrode changes along with a voltage difference between an electric signal applied to one of the first signal lines and an electric signal applied to the corresponding second signal line.

Abstract: The present application provides in some embodiments an array substrate, a display panel, a display device and a method for manufacturing the array substrate. The present application provides in some embodiments an array substrate, the array substrate comprising: an ultrasonic emission sensor, a substrate over the ultrasonic emission sensor, a pixel circuit layer over the glass substrate, and an ultrasonic reception sensor over the TFT pixel circuit layer, the ultrasonic reception sensor being electrically connected to the pixel circuit layer, wherein projections of the ultrasonic emission sensor and the ultrasonic reception sensor in a direction perpendicular to the substrate do not overlap with each other.

Abstract: The present application proposes a circuit and method for detecting ambient light, and a display panel. The circuit for detecting ambient light includes a light sensing sub-circuit configured to output a voltage pulse signal related to present intensity of the ambient light; and a detection sub-circuit electrically connected to the light sensing sub-circuit, and configured to acquire a frequency of the voltage pulse signal, and obtain the present intensity of the ambient light according to the frequency of the voltage pulse signal.

Abstract: The present disclosure discloses a fingerprint identification component, a fingerprint identification method and a fingerprint identification device. the fingerprint identification component includes an ultrasonic wave transmission circuit and an ultrasonic wave reception circuit, the ultrasonic wave transmission circuit is configured to transmit an ultrasonic wave in a direction towards a fingerprint at an interval of a first time period in a detection phase; the ultrasonic wave reception circuit is configured to, in the detection phase, receive an ultrasonic wave reflected by the fingerprint, convert the ultrasonic wave into an electric signal, and output the electric signal to a signal reading line, in order for an external detection component to determine texture information of the fingerprint according to the electric signal in the signal reading line.

Abstract: The present disclosure relates to a display panel, a device and a method for controlling the same. The display panel includes: a substrate; a detecting light transmitter, a detecting light receiver, a first optical element and a second optical element which are disposed on the substrate. The first optical element is configured to diverge light emitted from the detecting light transmitter and the second optical element is configured to converge the reflected divergent light to the detecting light receiver.

Abstract: The present application provides a sensor comprising a grating and a sensor array sequentially disposed in a thickness direction of the sensor, wherein the sensor array comprises a plurality of photosensitive sensor units, and light passing through a light transmission gap of the grating reaches the plurality of photosensitive sensor units. The present application further provides a display device comprising the sensor. The sensor may detect three-dimensional coordinates of an object so that the display device can realize three-dimensional touch control.