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: 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: A method and apparatus are provided. The method includes obtaining call information of first users currently in network calls in a network call system. Direct link quality and relay link quality corresponding to each first user are obtained according to the call information. Call link are configured for plural second users, where the plural second users are users whose relay link quality is higher than the corresponding direct link quality among the first users.

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.

Abstract: The present disclosure provides a display apparatus and a method for implementing a touch feedback. The display apparatus comprises: a display unit configured to display an image; a control unit configured to determine a touched object in the image according to a touch position of a user, and provide voltage signals based on attribute information of the touched object; and a touch unit configured to generate an induced capacitance and an electrostatic force at the touch position based on the voltage signals from the control unit. The display apparatus according to the present disclosure can improve the user experiences in using a terminal device comprising the display apparatus.

Abstract: A display driving unit circuit, a driving method, a display driving circuit and a display device are provided. The display driving unit circuit includes a pixel driving circuit and a light-emission control signal generation circuit. The light-emission control signal generation circuit is coupled to the pixel driving circuit. The pixel driving circuit is to drive a pixel to emit light. The light-emission control signal generation circuit is to supply a display light-emission control signal to the pixel driving circuit at a display stage to enable the pixel in a displaying mode and supply a fingerprint detection light-emission control signal to the pixel driving circuit at a fingerprint detection stage to enable the pixel in a fingerprint detection light-emission mode at the fingerprint detection stage. The display stage and the fingerprint detection stage are different time periods.

Abstract: A pixel circuit, a driving method thereof, and a display panel are provided. The pixel circuit includes a switching circuit, a shared circuit, a first sub-pixel circuit and a second sub-pixel circuit. The switching circuit includes a control terminal, a first terminal and a second terminal. The shared circuit includes a control terminal, a first terminal and a second terminal, the first terminal of the shared circuit is electrically connected to the second terminal of the switching circuit, both the first terminal of the shared circuit and the control terminal of the shared circuit are electrically connected to the first sub-pixel circuit and also electrically connected to the second sub-pixel circuit, and the shared circuit is configured to compensate for the first sub-pixel circuit and the second sub-pixel circuit.

Abstract: A surface light source, comprising a waveguide layer and a grating structure; the waveguide layer has a first surface and a second surface opposite to each other; the grating structure is provided on the first or second surface of the waveguide layer; and the grating structure is used for guiding light incident to the grating structure to the waveguide layer and performing total reflection propagation in the waveguide layer. Such surface light source structure enables energy and direction of light emitted from a light field modulation layer to be distributed uniformly, and thus the thickness of the surface light source and the number of LEDs in the surface light source are reduced. Also disclosed is a display device.

Abstract: The embodiments of the present disclosure provide an optical fingerprint recognition apparatus and a display panel. The apparatus comprises: a light emitting structure (1), a collimating structure (2) and a plurality of photosensitive sensors (3); the light emitting structure (1) is used for generating detecting light; the collimating structure (2) is used for filtering the detecting light reflected by a finger, such that light with a scattering angle in a predetermined range transmits through the collimating structure (2); the photosensitive sensors (3) are used for receiving the light transmitted through the collimating structure (2) and acquiring fingerprint information according to the received light. The embodiments of the present disclosure are used for manufacturing a display panel. The present disclosure can enhance accuracy of the recognized fingerprint information during an optical fingerprint recognition process.

Abstract: A single-side light-emitting source, a method for manufacturing the same, and a display device are provided. The single-side light-emitting source includes a base substrate; a plurality of light-shielding patterns on the base substrate; a signal transmission pattern covering the plurality of light-shielding patterns; a plurality of first electrodes; an electroluminescent layer on the first electrodes; and a transparent second electrode layer on the electroluminescent layer. In the above single-side light-emitting source, the first electrodes are on the signal transmission pattern, and an orthographic projection of each first electrode onto the base substrate is within an orthographic projection of a corresponding light-shielding pattern onto the base substrate.

Abstract: The present disclosure provides a photoelectric sensor, an array substrate, a display panel and a display device. The photoelectric sensor is used for fingerprint recognition, and includes a first electrode layer, being lighttight. The photoelectric sensor further includes a first transparent electrode layer, disposed opposite to the first electrode layer and receiving incident light, and a light sensing layer, located between the first electrode layer and the first transparent electrode layer. The light sensing layer includes a plurality of nanocrystalline silicon particles with different particle sizes.

Abstract: This application discloses a link decision-making method, applied to a link decision-making system including first and second user equipment that are in a Voice over Internet Protocol (VoIP) call status, a transit server, and a decision-making computing device. A first link directly connecting the two user equipment and a second link that transits by using the transit server exist between the two user equipment. The decision-making computing device is responsible for making, according to a link quality score of a current sending link between the first and second user equipment, a decision about using the first link or the second link as a subsequent sending link of the first user equipment. According to the link decision-making method provided in this application, it can be ensured that a better link can be selected to transmit a data stream of VoIP, thereby improving the quality of service (QoS) of the VoIP.

Abstract: Video data processing method and apparatus are provided. The method includes: encoding, by an encoder side, obtained original video data according to a hierarchical P-frame prediction HPP structure to obtain an HPP bitstream; redundancy-coding the HPP bitstream according to a forward error correction FEC code, redundancy packet quantities in frames in the HPP bitstream progressively decreasing from lower to higher temporal layers to which the frames belong in the HPP structure; and sorting the frames in the redundancy-coded HPP bitstream and sequentially sending the frames in the redundancy-coded HPP bitstream to a decoder side.

Abstract: The invention discloses a method for catalytically hydrogenating oxalates. In the method, an oxalate and hydrogen gas are contacted with a nanotube assembled hollow sphere catalyst, to produce a product comprising glycolate or glycol. The predominant chemical components of the catalyst include copper and silica, in which the copper is in an amount of 5 to 60% by weight of the catalyst, and the silica is in an amount of 40-95% by weight of the catalyst. The catalyst has a specific surface area of 450-500 m2/g, an average pore volume of 0.5-1 cm3/g, and an average pore diameter of 5-6 nm. The catalyst is in a structure of assembling nanotubes on hollow spheres, wherein the hollow spheres have a diameter of 50-450 nm, and a wall thickness of 10-20 nm, and the nanotubes, vertically arranged on the surfaces of the hollow spheres, have a diameter of 3-5 nm, and a length of 40-300 nm.

Abstract: A compensation pixel circuit, a display panel, a display apparatus, a regional compensation method and a driving method are provided. The compensation pixel circuit includes a compensation driving circuit and a signal acquiring circuit connected with the compensation driving circuit. The compensation driving circuit includes a driving transistor and an organic light-emitting diode. The compensation driving circuit is configured to receive a light-emitting data signal, compensate a threshold voltage of the driving transistor, and drive the organic light-emitting diode to illuminate in accordance with the light-emitting data signal. The signal acquiring circuit is configured to acquire a gate voltage of the driving transistor.

Abstract: The present disclosure discloses a display panel, a manufacturing method thereof and a display device. By arranging positions of first transmission pads and second transmission pads, and setting areas of first film layers in the first transmission pads to be less than those of second film layers, when the first transmission pads and the second transmission pads are disposed oppositely, fully-opened openings are formed between the two pads, so that it is convenient to fill spaces between the first transmission pads and the second transmission pads with conductive components to allow the first transmission pads be electrically connected with the second transmission pads through the conductive components, guaranteeing an effective electrical connection between the first transmission pads and the second transmission pads and then ensuring signal transmission via first wires and second wires through the first transmission pads and the second transmission pads.

Abstract: There is provided in the present disclosure a shift register unit, comprising: an input circuit, whose first terminal is connected to a power supply terminal, second terminal is connected to an input terminal, and third terminal is connected to a pull-up node, the input circuit being configured to input a power supply signal input by the power supply terminal to the pull-up node under the control of an input signal; a pull-up control circuit, whose first terminal is connected to a first clock signal terminal, and second terminal is connected to the pull-up node, the pull-up control circuit being configured to control a potential of the pull-up node according to a first clock signal input by the first clock signal terminal; a pull-up circuit, whose first terminal is connected to a first signal terminal, second terminal is connected to an output terminal, third terminal is connected to the pull-up node.

Abstract: A display panel has a light exit side and includes an infrared light emitting unit for emitting infrared light towards the light exit side of the display panel; and at least three infrared light sensing units provided at different positions for detecting intensity of the infrared light emitted from the light exit side of the display panel and reflected by a human eye.

Abstract: A display panel for fingerprint recognition and a display device are disclosed. The display panel for fingerprint recognition includes: a driving circuit backboard; a plurality of electroluminescent units disposed on the driving circuit backboard in a form of array; a plurality of infrared luminescent units disposed on the driving circuit backboard in a form of array; a protection cover plate; and a plurality of infrared photosensitive induction units disposed in a form of array between the protection cover plate and a film on which the infrared luminescent units are located.