Abstract: A total-reflection infrared reflection device and a preparation method thereof. The device includes two light-transmitting conductive substrates disposed oppositely, the two light-transmitting conductive substrates are packaged to form a seal cavity, in the seal cavity, opposite surfaces of the two light-transmitting conductive substrates are respectively coated with a first liquid crystal layer capable of reflecting left-handed polarized light and a second liquid crystal layer capable of reflecting right-handed polarized light, the first liquid crystal layer includes a polymer network and a cholesteric liquid crystal with a left-handed spiral structure, the second liquid crystal layer includes a polymer network and a cholesteric liquid crystal with a right-handed spiral structure, the cholesteric liquid crystal with the left-handed spiral structure can reflect left-handed polarized light, and the cholesteric liquid crystal with the right-handed spiral structure can reflect right-handed polarized light.

Abstract: The disclosure applies to the field of antenna technology, which provides an antenna oscillator and an antenna. The antenna oscillator includes an antenna oscillator body, the antenna oscillator body has a rectangular planar plate-like structure. The first slit and the second slit have strip-shaped structures without branches and are configured on the antenna oscillator body. The first slit and the second slit extend in the direction of the long side of the rectangle and the antenna oscillator body is configured with a pore structure. It can receive and transmit electromagnetic wave signals of a larger bandwidth, expand the effective bandwidth of the antenna oscillator and obtain better signal intensity for each frequency within the effective bandwidth.

Abstract: A capacitance detection method of a touch display panel, a capacitance detection circuit, and an electronic device are provided. The method includes: receiving a real-time sync signal sent from a display panel, and generating a trigger signal in a period in which a display driving noise is avoided based on the real-time sync signal (S1); generating a sync driving signal in the period in which the display driving noise is avoided based on the received trigger signal, to drive a driving electrode of the touch display panel (S2); and detecting a signal value of a capacitance sensor in the touch display panel in the period in which the display driving noise is avoided based on the received trigger signal (S3). This method is little affected by the display driving operation, and improves the signal-to-noise ratio (SNR) of a finally detected effective signal, thus greatly improving the touch sensitivity.

Abstract: An algorithm program loading method and a related apparatus are provided. The method includes: determining basic storage capacity of a second storage resource; obtaining an algorithm program, determining whether the algorithm capacity of the algorithm program is greater than the basic storage capacity, and if the algorithm capacity of the algorithm program is greater than the basic storage capacity, segmenting the algorithm program by taking the basic storage capacity as a unit to obtain algorithm subprograms; controlling a direct memory access module to load a master control program of a neural network processor to a first storage resource and executing the master control program; and controlling the direct memory access module to load the first algorithm subprogram in the algorithm subprograms to the second storage resource, confirming that the loading of the first algorithm subprogram is completed, executing the first algorithm subprogram, and loading in parallel a second algorithm subprogram.

Abstract: A display method of a fan display apparatus includes detecting a present display section of a blade portion of the fan display apparatus; acquiring the image data to be displayed; determining whether the present display section and the previous display section are the same; changing a present display mode of the display elements, if the present display section and the previous display section are not the same; displaying the image data according to the changed display mode. A fan display apparatus and a fan display video wall system are also provided. The present disclosure makes the three-dimensional sense of the visual stronger; the visual effect is shocking and the experience is great; create a completely new 3D advertising solution; and at the same time, the installation method is flexible and can be installed in shopping malls, convenience stores, newspaper booths and other places.

Abstract: A rail bracket includes a bracket body, a first screw, and a buckle board, wherein, a slot is provided at a side of the bracket body, the bracket body protrudes to form a body buckle at a first side of the slot, a through hole is provided at a side wall of the bracket body, one end of the buckle board is inserted into the slot, the first screw inside the through hole threadedly connects with the buckle board, the body buckle is provided with a first rail clamping groove, the buckle board is provided with a second rail clamping groove, the rail bracket clamps with a rail. It is easy to operate the first screw from the side so that the rail bracket is clamped onto the rail to realize connection between the rail and a part.

Abstract: The broken string energy absorbing device includes a fixing mechanism and a cushioning and energy absorbing mechanism. The fixing mechanism is configured to fix the broken string energy absorbing device to a neck of the stringed instrument. The cushioning and energy absorbing mechanism is configured to absorb and weaken the energy when a string of the stringed instrument is broken. The present invention can sufficiently protect the user from not being exploded by the broken string when tuning the strings, which effectively ensures the safety of the user when tuning. The user no longer has the psychological burden of worrying about whether the string will be broken, so that the user can safely tune the strings, which provides good user experience and is favorable for the user to further learn the instrument.

Abstract: Aspects of the disclosure provide methods and mobile robots for providing information to a pedestrian. In some examples, a mobile robot includes processing circuitry. The processing circuitry obtains, via a sensor, sensing data that indicates an ambient environment of the mobile robot. The processing circuitry determines path indication information according to the sensing data. The path indication information includes a planned path of the mobile robot. The processing circuitry projects the path indication information on a target projection surface.

Abstract: The present disclosure relates to, a magnetic microbeads adsorption mechanism, which is configured to adsorb a magnetic microbeads in a reaction cup and is provided with a cup inlet station and a cup outlet station; the magnetic microbeads adsorption mechanism includes a pedestal, a turntable and multiple magnetic adsorption components; the turntable is rotatably mounted on the pedestal; the turntable can drive the reaction cup to rotate around a central axis of the turntable; the multiple magnetic adsorption components are arranged on a mounting circumference of the pedestal at intervals; the mounting circumference and rotation track of the reaction cup are concentrically arranged; and during a process when the reaction cup rotates from the cup inlet station to the cup outlet station, the adsorption height of the magnetic microbeads relative to cup bottom of the reaction cup can be changed.

Abstract: Provided are a backlight module, an under-screen fingerprint identification method, apparatus and an electronic device. The under-screen fingerprint identification apparatus is applied to an electronic device having a backlight module, and includes: a fingerprint identification module disposed under the backlight module and configured to receive an infrared light signal passing through the backlight module that is emitted by an infrared light source and illuminates a human finger, where the infrared light signal is used to detect fingerprint information of the finger; where a haze of the infrared light signal passes through the backlight module is less than a haze of visible light for displaying an image passes through the backlight module. The under-screen fingerprint identification apparatus of embodiments of the present application could effectively implement under-screen fingerprint identification of a passive light-emitting display screen.

Abstract: An optical lens includes a first lens, a second lens and a third lens in an order from an object side to an image side along an optical axis. The first lens is a lens having negative refractive power, and an object-side surface of the first lens is concave; the second lens is a lens having positive refractive power, and an image-side surface of the second lens is convex; the third lens is a lens having positive refractive power, and an image-side surface of the third lens is convex. The optical lens satisfies a condition. i.e., 3<D1/f<6, wherein D1 is an optical effective diameter of the first lens and f is effective focal length of the optical lens. The optical lens is characterized by wide-angle and short distance.

Abstract: A method and an apparatus for obtaining data, based on location information, are provided. The method includes receiving, from a user terminal, a first query request that is used to obtain object information, the first query request carrying location information of the user terminal, and querying, in response to a cache area being not empty, the cache area for hotspot data in an area range in which the location information of the user terminal is located, the hotspot data being information of an object included in the area range, and the hotspot data being cached in response to a frequency of query access occurring in the area range exceeding a predetermined threshold. The method further includes sending, to the user terminal, the hotspot data in the area range.

Abstract: Embodiments include information processing methods, a server, a terminal, and non-transitory computer-readable storage mediums. One information processing method includes receiving a request for electronic information. The request for the electronic information is sent by a first user logged into a first terminal. The method includes recommending and sharing at least one piece of recommended information, which corresponds to the electronic information, to at least one second user according to a recommendation and/or sharing rule associated with the electronic information. The at least one second user is associated with the first user. The method further includes, when the at least one second user logs into a second terminal and performs a function based on the at least one piece of recommended information, sending at least one piece of content information to a database accessible by the first user according to the at least one piece of recommended information.

Abstract: An information delivery method is provided, including: determining a candidate information list in response to a page request sent by a user, where the candidate information list comprises a plurality pieces of information; generating ranks of the pieces of information in the candidate information list by sorting the plurality pieces of information in the candidate information list in accordance with a predetermined rule; acquiring a current average rank of the information of a designated type in the candidate information list based on the ranks of the pieces of information in the candidate information; and selecting designated delivery information from the information of the designated type, based on the current average rank of the information of the designated type and a historical average rank corresponding to the information of the designated type.

Abstract: The present invention relates to an electroluminescent device and a method of fabricating the same. The electroluminescent device includes a substrate, an organic photovoltaic cell unit (OPV) and a translucent organic light-emitting diode unit (OLED), wherein the organic photovoltaic cell unit is disposed on the substrate, the translucent organic light-emitting diode unit is disposed on the organic photovoltaic cell and connected in series with the organic photovoltaic cell.