Abstract: A display panel and a display device are provided. In the display panel, an upconversion material layer is configured to convert interactive light from a first wave band into a second wave band. A light-sensing transistor of a light-sensing circuit is configured to convert a light intensity signal of the interactive light into an electrical signal after the wave band of the interactive light is converted. A position-detecting circuit is configured to identify a position where the interactive light is irradiated according to the electrical signal. Therefore, the display panel can interact with light having relatively long wavelengths.

Abstract: The present application discloses a liquid crystal display panel, which includes an array substrate, a color filter substrate, a first polarizer and a second polarizer; wherein each of the pixel units includes a pixel electrode, the pixel electrode includes a trunk electrode, the trunk electrode includes a first trunk electrode disposed along a first direction and a second trunk electrode disposed along a second direction, and an angle between the first direction and the first polarization direction is different from a right angle.

Abstract: A gyroscope includes a substrate, a proof mass coupled to the substrate and configured to move in direction of an X axis and in direction of a Y axis orthogonal to the first axis, an X axis shuttle to selectively drive the proof mass along the X axis as a drive axis or sense movement of the proof mass along the X axis as a sense axis in response to the proof mass driven along the Y axis as the drive axis, and a Y axis shuttle to selectively sense movement of the proof mass along the Y axis as a sense axis in response to the proof mass driven along the X axis or drive the proof mass along the Y axis as the drive axis. The X axis shuttle is symmetric to the Y axis shuttle along a diagonal axis that is diagonal to both the X axis and the Y axis. The X and Y axis shuttles have gaps designed for a predetermined DC voltage to generate spring softening (negative cubic nonlinearity) that is equal to spring hardening (positive cubic nonlinearity), ensuring linear motion at high amplitudes (? of the capacitive gap).

Abstract: Described aspects include a system for optimizing performance of a functional circuit unit, a method of optimizing performance of a functional circuit unit, and a computer program product. In one embodiment, the system may include a functional circuit unit having an associated cooling device and power converter, one or more sensors for the functional circuit unit, the one or more sensors including a power sensor and a temperature sensor, and a first machine learning model. The first machine learning model may be adapted to receive temperature data and power data from the one or more sensors, and to generate control signals for the cooling device and the power converter to optimize performance of the functional circuit unit.

Abstract: An optical system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, a tenth lens, an eleventh lens, a twelfth lens, and a thirteenth lens sequentially arranged from an image side to an object side. The first and second lenses are bonded together to form a first cemented lens group having positive focal power. The third to the fifth lenses are bonded together to form a second cemented lens group having negative focal power. The sixth and seventh lenses are bonded together to form a third cemented lens group having positive focal power. The eighth and ninth lenses are bonded together to form a fourth cemented lens group having positive focal power. The tenth and eleventh lenses are bonded together to form a fifth cemented lens group having positive focal power.

Abstract: Embodiments of this application disclose a call method and an electronic device, and relate to the field of terminal technologies. Distributed devices participating in a call process divide and register respective capabilities. In the call process, a device corresponding to a most applicable capability can be selected based on the registered capabilities to process a call service. This improves use experience of a user. The method includes: A first device establishes a communication connection to at least one second device, and receives capability registration information of each second device. When receiving a call service, the first device can select, based on capability information of the first device and the capability registration information of the second device, a target device having a capability of processing the call service to process the call service; and receive feedback information.

Abstract: A display substrate, a manufacturing method thereof, and a display device are provided. A pixel region is provided with a light emission function layer on a base substrate of the display substrate, and a separation region is provided with at least one first barrier structure. The first barrier structure includes a stopper pattern and a first separation component. A side surface of the first separation component has a recess, and a portion of the light emission function layer extending to the separation region is disconnected on the side of the first separation component. The separation region is provided with an inorganic layer structure on the base substrate. The inorganic layer structure includes multiple stacked inorganic film layers, the stopper pattern is located between two adjacent inorganic film layers and the first separation component is located on a side of the inorganic layer structure away from the base substrate.

Abstract: A display substrate and a display device are disclosed. In the display substrate, a pixel defining layer includes a plurality of opening groups, each of the opening groups includes a first opening and a second opening, the spacer is located between the first opening of a first opening group row and the second opening of a second opening group row, an orthographic projection of the first opening includes a first long edge, and an orthographic projection of the second opening includes a second long edge, an orthographic projection of the spacer includes a third long edge, and an angle between the third long edge and the first long edge ranges from 20 degrees to 70 degrees, the orthographic projection of the first opening includes a first short edge, and the length of the third long edge is greater than that of the first short edge.

Abstract: Methods and systems for controlling current consumption by an electrical load of a first circuit board are described. In an example, a device of a first circuit board can measure a current being drawn by the electrical load of the first circuit board from a second circuit board. The device can generate a control signal based on a current difference between the measured current and a target current. The control signal can represent a load control parameter. The device can apply the control signal to the electrical load of the first circuit board to adjust a current consumption by the electrical load.

Abstract: Provided are a display panel and a display device. The display panel includes: a via hole penetrating through the display panel; a cutting residual area on the periphery of the via hole and includes a base substrate, and a packaging layer: and at least one annular relief structure between the packaging laver and the base substrate in the cutting residual area. The at least one annular relief structure is sequentially distributed around the via hole. At least one relief structure is provided with a surface facing away from the base substrate, and a side face connected to the surface, at least one of the surface and the side face is of a relief shape. The first relief structure is the relief structure with a smallest distance from the center of the via hole.

Abstract: A band-gap reference source circuit is configured to be connected with an electronic device. The band-gap reference source circuit comprises: a power supply, a start circuit, a core circuit, an output circuit and a shunt circuit, wherein the power supply is connected to first ends of the start circuit, the core circuit and the output circuit; a second end of the start circuit is connected to the core circuit; a second end of the core circuit is connected to the output circuit, and a control end of the core circuit is connected to the shunt circuit and used for providing a control signal for the shunt circuit; an output end of the output circuit is used for connecting to an electronic device; and a first end of the shunt circuit is connected to the output end of the output circuit, and controls a current of a second end.

Abstract: Disclosed is a modularized-reconfigurable long-term in-situ monitoring device and a monitoring method. The monitoring device comprises a fixed component. The fixed component is provided with a physical and chemical parameter sensor interface, a multi-channel Raman detection system, a camera system, an ocean current recording system, a control system, a power supply system, a lighting system, a floating body and an optical communication system. A releaser is arranged in the middle of the top of the fixed component. The releasing end of the releaser is connected with one end of a connecting rod penetrating through the fixed component, and the other end of the connecting rod is connected with a bottom counterbalance weight through a manual releaser. The working efficiency is improved, the operation risk is reduced, and the positioning precision is high.

Abstract: Disclosed are a live broadcast stream pushing method and apparatus, and an electronic device. One specific embodiment of the method comprises: receiving viewing permission setting information, wherein the viewing permission setting information is used for representing viewing permission of viewing a live broadcast stream of a multimedia conference; on the basis of the live broadcast starting state of the multimedia conference and the viewing permission setting information, determining whether to push the live broadcast stream of the multimedia conference to a requester who requests the live broadcast stream; and in response to determining to push the live broadcast stream of the multimedia conference to the requester, pushing the live broadcast stream of the multimedia conference to the requester. According to the embodiment, the flexibility of pushing a live broadcast stream of a multimedia conference is improved.

Abstract: A bilayler metamaterial silencer allows substantial fluid through the apparatus, while mitigating the propagation of sound through the apparatus, and while providing a form factor that is significantly more compact than previously-known devices. Moreover, illustrative embodiments allow a designer to specify one or both of the frequency or frequencies at which the apparatus mitigates sound propagation, and/or the bandwidth around the frequency or frequencies at which the apparatus mitigates sound propagation.

Abstract: A display substrate and a display device. The display substrate includes a base substrate and a plurality of sub-pixels on the base substrate. Each sub-pixels includes a pixel circuit. The plurality of sub-pixels include a first sub-pixel. The compensation sub-circuit of the first sub-pixel includes a first electrode, a second electrode, and a connection portion between the first electrode and the second electrode. The first drive electrode of the light-emitting element of the first sub-pixel includes a first main body portion including a first side parallel to a certain direction, and a first protruding portion protruding from the first side of the first main body portion. The first protruding portion at least partially overlaps with the connection portion of the compensation sub-circuit of the first sub-pixel in a direction perpendicular to the base substrate. The light-emitting element of the first sub-pixel is configured to emit green light.

Abstract: A terminal supports two cards the primary card and the secondary card, the primary card supports a data service, and the secondary card supports transmission of a voice service using a data service, or the secondary card supports concurrent transmission of a voice service and a data service. The method includes, when the terminal performs the data service using the primary card, if the terminal performs the voice service using the secondary card, switching, by the terminal, the data service performed using the primary card to the secondary card, and performing the data service using the secondary card.

Abstract: An optical coupler, a communication method, and a communication system are provided. The communication system includes N transmitters, M receivers, and an optical coupler, where both N and M are positive integers greater than 1. Each of the N transmitters is configured to send one first optical signal to the optical coupler. The optical coupler is configured to couple N first optical signals sent by the N transmitters into one second optical signal and to broadcast the second optical signal to the M receivers. Each of the M receivers is configured to receive the second optical signal sent by the optical coupler and to demodulate the second optical signal.

Abstract: A backlight module and a method of manufacturing the backlight module are disclosed. The backlight module includes a substrate including a first end and a second end opposite to the first end. An ink layer is disposed on the substrate and has a reflectivity gradually increasing from the first end to the second end. At least two of light-emitting units are arranged in an array on the ink layer.

Abstract: A backlight source and a manufacturing method thereof are provided. The backlight source includes a first substrate, a plurality of light sources, a driving circuit layer, and a conductive line. The light sources are distributed on an upper surface of the first substrate. The second substrate is disposed opposite to the first substrate. The driving circuit layer is disposed on a surface of a side of the second substrate away from the first substrate. An end of the conductive line is connected to one of the light sources, and another end of the conductive line is bonded to the driving circuit layer.