Abstract: A display circuit includes a plurality of current source branches and a plurality of pixel branches. Each current source branch includes a first transistor and a control circuit. Each pixel branch includes a second transistor, a pulse width control switch transistor, and a pixel unit that are connected in series. The turned-on first transistor and the turned-on second transistor form a current mirror structure. In the current mirror structure, there is a proportional relationship between a current flowing through each of the plurality of first transistors and a current flowing through the turned-on second transistor. Whether each first transistor is turned on is controlled through the control circuit, to adjust a value of the current flowing through each pixel unit through the second transistor.

Abstract: A processing circuit includes a load unit and a detection circuit, and a proportional relationship exists between a load value of the load unit and a load value of a first pixel line. The load value of the load unit is obtained through the detection circuit, to obtain the load value of the first pixel line. Then, based on the load value of the first pixel line, a drive current circuit is controlled to provide a corresponding drive current to the first pixel line. When the drive current enables a light-emitting diode (LED) on the first pixel line to emit light within drive time, a current value is as small as possible.

Abstract: A battery module includes a top plate, a bottom plate, two end plates, and two side plates. At least one of the two end plates includes a plate body including a hollow structure provided with first reinforcing grooves and a first connecting hole. At least two of the first reinforcing grooves are arranged at intervals along a first direction of the plate body. At least one of the two side plates includes a base plate and a base mounting plate. The base plate is provided with a fixing hole penetrating through the base plate. The base mounting plate is bent and connected to the base plate and includes an outer connecting part provided with a first mounting hole. The first connecting hole is configured for a first fixing member to pass through. The first mounting hole is configured for a second fixing member to pass through.

Abstract: This application relates to the field of AR technologies, and in particular, to AR glasses and an AR glasses system. The AR glasses further include an optical receiver/transmitter, a light propagation medium, a power supply apparatus, and a photovoltaic apparatus. The optical receiver/transmitter is configured to emit light. The optical receiver/transmitter is disposed on a frame. The light propagation medium is configured to guide propagation of the light emitted by the optical receiver/transmitter, and the light propagation medium is disposed on an eyeglass. The power supply apparatus is configured to provide electric energy for the AR glasses. The photovoltaic apparatus is configured to absorb light that does not enter the light propagation medium, and convert light energy into electric energy. The photovoltaic apparatus is electrically connected to the power supply apparatus, and the electric energy generated by the photovoltaic apparatus is transmitted to the power supply apparatus.

Abstract: A micro-light emitting diode (MicroLED) display screen includes a MicroLED array substrate, where a plurality of pixels are set in the MicroLED array substrate, and the plurality of pixels include at least a first subpixel and a second subpixel; a light scattering structure, prepared above the first subpixel, and configured to scatter first emitting light generated by the first subpixel; a light conversion structure, prepared above the second subpixel, and configured to convert second emitting light generated by the second subpixel; and a metal isolation structure, prepared between the light scattering structure and the light conversion structure, where the light scattering structure, the light conversion structure, and the metal isolation structure are located at a same layer.

Abstract: A projection apparatus includes a pixel array disposed on a substrate, where the pixel array has a light-emitting feature; a cantilever beam disposed on the substrate and configured to fasten a micro-electro-mechanical system (MEMS) lens, where the cantilever beam is disposed outside the pixel array, the MEMS lens is configured to scan the pixel array, the cantilever beam and the MEMS lens form a MEMS lens scanner; and a driver coupled to the pixel array and the MEMS lens and configured to drive the pixel array having a light-emitting feature to perform color display to obtain a projected image.

Abstract: This application provides a display panel, a preparation method therefor, and a display apparatus. A first display region of the display panel has an OLED pixel, a second display region has a Micro LED pixel, the Micro LED pixel has a light emitting region and a light transmission region, and a camera is disposed below the second display region. After the Micro LED pixel is used in the second display region, display pixels having a same area in the first display region and the second display region can be designed, to implement display effect consistency between the first display region and the second display region. Because a size of the Micro LED pixel for light emitting is small, it can be ensured that the Micro LED pixel has a large light transmission region, so that light transmittance of the second display region can be improved.

Abstract: To improve the accuracy and efficiency of object detection through computer digital image analysis, the detection of some objects can inform the sub-portion of the digital image to which subsequent computer digital image analysis is directed to detect other objects. In such a manner object detection can be made more efficient by limiting the image area of a digital image that is analyzed. Such efficiencies can represent both computational efficiencies and communicational efficiencies arising due to the smaller quantity of digital image data that is analyzed. Additionally, the detection of some objects can render the detection of other objects more accurate by adjusting confidence thresholds based on the detection of those related objects. Relationships between objects can be utilized to inform both the image area on which subsequent object detection is performed and the confidence level of such subsequent object detection.

Abstract: A driving method and driving apparatus for a light-emitting diode LED display, and an LED display are provided, to decrease power consumption of the LED display. The driving apparatus includes temperature sensors (201, . . . , 20m), a control unit (301), and a power supply unit (401). The power supply unit (401) is configured to provide driving voltages (VDD, VSS) for light-emitting diodes (1011, 1021) in all pixel circuits (101, . . . , 10n) in the LED display. The temperature sensors (201, . . . , 20m) are configured to collect a first temperature value of the LED display. The control unit (301) is coupled to the power supply unit (401), and is configured to control, based on the first temperature value, the power supply unit (401) to dynamically adjust the driving voltages (VDD, VSS) that are applied to the light-emitting diodes (1011, 1021) in all pixel circuits (101, . . . , 10n).

Abstract: The disclosure relates generally to a method, device, and system for creating a searchable data store with an infinite retention period for streaming documents. In an embodiment, a method of storing data includes receiving an incoming stream of time-series data; storing the time-series data of the incoming data stream in a first segment; and closing the first segment in response to a resource consumption limit of the first segment being reached.

Abstract: An embodiment is a method including receiving a plurality of event records in a first timeframe, each event record comprising a plurality of attribute-value pairs, grouping the event records by a destination address and a source address to form grouped event records, establishing a plurality of threat vectors for each of the grouped event records based on the attribute-value pairs, merging the plurality of threat vectors with the corresponding grouped event records to form a plurality of risk events, and storing the plurality of risk events in a computer-readable data store.

Abstract: A projection optical engine, an electronic device, and a projection imaging method are provided, to resolve a limitation of the projection optical engine on miniaturization of the electronic device. The light combination apparatus is configured to combine light emitted by one pixel of the first color and light emitted by one pixel of the second color, and then emit combined light. The light emitted by the light combination apparatus is imaged on an imaging plane after passing through the pixel expansion apparatus and the optical engine lens. The pixel expansion apparatus is configured to enable the light emitted by the light combination apparatus to be imaged at different locations on the imaging plane at different moments.

Abstract: The present disclosure relates to displays and imaging methods. One example display includes a self-luminous array, a pixel expansion apparatus, and a lens of an optical engine. The self-luminous array includes a plurality of self-luminous pixels that autonomously emit light. The pixel expansion apparatus includes a driver and a transparent flat plate. A light beam emitted by the self-luminous array is imaged on an imaging plane of the lens of the optical engine through the transparent flat plate. The transparent flat plate is driven by the driver. In some instances, for the display module, in a time dimension, a same unit imaging area can display different colors in a time-division manner, and in a space dimension, a shift of a light beam can be controlled.

Abstract: A method including receiving a record in a first timeframe; establishing a plurality of threat vectors for the record; merging the plurality of threat vectors to the record; generating a risk valuation for the record based on the plurality of threat vectors; merging the risk valuation to the record to form a risk event; and storing the risk event in a computer-readable data store.

Abstract: Pixel structures used in self-luminous display panels are provided in this disclosure. In an implementation, a pixel structure comprises: a plurality of subpixels, wherein at least one subpixel in the plurality of subpixels comprises a plurality of sub-subpixels, wherein a partition layer is arranged between two adjacent sub-subpixels in the at least one subpixel, and wherein light emission of the plurality of sub-subpixels is separately and independently controlled.

Abstract: The present disclosure relates to a novel sp2-sp3 hybrid crystalline boron nitride and its preparation process. A novel sp2-sp3 hybrid crystalline boron nitride allotrope, named Gradia BN, is synthesized using sp2 or sp3 hybridized boron nitride as raw materials under high-temperature and high-pressure. The basic structural units of Gradia BN are composed of sp2 hybridized graphite-like structural units and sp3 hybridized diamond-like structural units. Gradia BN disclosed in the present disclosure is a class of new sp2-sp3 hybrid boron nitride allotrope, whose crystal structure can vary with the widths and/or crystallographic orientation relationships of internal sp2 and/or sp3 structural units, and may have variable physical properties.

Abstract: The present application discloses a conductive high-strength diamond/amorphous carbon composite material and a preparation process thereof. The diamond/amorphous carbon composite material is composed of an amorphous carbon continuous phase and multiple separate diamond phases embedded in the amorphous carbon continuous phase, wherein the diamond phases exhibit an ordered sp3 hybrid state, and the amorphous carbon continuous phase exhibits a disordered sp2 hybrid state. The present application further discloses a process for preparing the above diamond/amorphous carbon composite material. The process comprises using sp3 carbon powder or glassy carbon as a raw material to obtain the above-mentioned material by sintering. The diamond/amorphous carbon composite material shows good electrical conductivity, good electrical discharge machining ability, good chemical stability and light weight, and has broad application prospects in aerospace, automobile industry and biomedical equipment.

Abstract: Use of nickel in a cathode material of the general formula Li (4/3-2x/3-y/3-z/3)NixCoyAlzMn(2/3-x/3-2y/3-2z/3)02 wherein x is greater than 0.06 and equal to or less than 0.4; y is equal to or greater than 0 and equal to or less than 0.4; and z is equal to or greater than 0 and equal to or less than 0.05 for suppressing gas evolution during a charge cycle and/or increasing the charge capacity of the material.

Abstract: A computing system is provided. The computing system includes a processor configured to execute a convolutional neural network that has been trained, the convolutional neural network including a backbone network that is a concatenated pyramid network, a plurality of first head neural networks, and a plurality of second head neural networks. At the backbone network, the processor is configured to receive an input image as input and output feature maps extracted from the input image. The processor is configured to: process the feature maps using each of the first head neural networks to output corresponding keypoint heatmaps; process the feature maps using each of the second head neural networks to output corresponding part affinity field heatmaps; link the keypoints into one or more instances of virtual skeletons using the part affinity fields; and output the instances of the virtual skeletons.

Abstract: The present disclosure belongs to the technical filed of new carbon materials and relates to a novel sp2-sp3 hybrid crystalline carbon named Gradia and its preparation process. A novel sp2-sp3 hybrid carbon named Gradia is synthesized using sp2 hybrid carbon as raw materials under high temperature and high pressure. The basic structural units of Gradia are composed of sp2 hybrid graphite-like structural units and sp3 hybrid diamond-like structural units. Gradia disclosed in the present disclosure is a class of new sp2-sp3 hybrid carbon allotrope, whose crystal structure can vary with the widths and/or crystallographic orientation relationships of internal sp2 and/or sp3 structural units.