Abstract: Provided are a digital twinning method and system for a scene flow based on a dynamic trajectory flow, which belong to the field of traffic control. The method includes: extracting and identifying a target semantic trajectory with a detecting and tracking integrated multi-modal fusion and perception enhancement network; extracting road traffic semantics, so as to obtain a highly parameterized virtual road layout top view; obtaining a road layout traffic semantic grid encoding vector based on the virtual road layout top view; constructing a target coupling relation model; constructing a traffic force constraint model; constructing a long short term memory trajectory prediction network; predicting a motion trajectory of a target with the long short term memory trajectory prediction network, so as to obtain the predicted motion trajectory; and obtaining a digital twin of the scene flow based on trajectory extraction, semantic identification and the predicted motion trajectory.

Abstract: The present disclosure relates to clock circuits, computing chips, hash boards and data processing devices. A clock circuit comprises M stages of clock drive circuits that are connected in series, M being an integer that is no less than 2, wherein N inverters connected in series are arranged between an input port and an output port of each stage of the M stages of clock drive circuits, N being an odd number that is no less than 3. The clock circuit may provide clock signals with excellent performance.

Abstract: Disclosed are a tricyclic derivative and a preparation method therefor and an application thereof. Specifically, disclosed are a compound shown in formula (I) and an optical isomer thereof or a pharmaceutically acceptable salt thereof, and an application of the compound as an Autotaxin inhibitor.

Abstract: The disclosure provides a method and apparatus for extracting an avalanche signal.

Abstract: A 3D target detection method based on multimodal fusion and a depth attention mechanism includes the following steps: obtaining and preprocessing original point cloud data and original image data; inputting the preprocessed point cloud data and image data into a 3D target detection network based on multimodal fusion and the depth attention mechanism, where the 3D target detection network based on multimodal fusion and the depth attention mechanism includes a generation phase for 3D bounding box proposals and a refinement phase for 3D bounding boxes, and the network outputs parameters and classification confidence of a target bounding box; training the 3D target detection network based on multimodal fusion and the depth attention mechanism; and processing the collected lidar point cloud data and image data by using the trained detection network, and outputting 3D target information, to realize 3D target detection.

Abstract: A display device, including a display module, a photodetector, a processor, and an optical structure layer, is provided. The display module is used for displaying an image. The photodetector is electrically connected to the display module and is used for detecting brightness of an ambient light and outputting a sensing signal. The processor is electrically connected to the display module and the photodetector, and is used for receiving the sensing signal and outputting a command signal to the display module according to the sensing signal, so that the display module adjusts brightness of the image according to the command signal. The optical structure layer is disposed on the display module. A glossiness of the optical structure layer is between 4 GU and 35 GU, and a reflectivity of specular component included (SCI) of the optical structure layer is between 3% and 6%.

Abstract: A circuit board assembly with a fully embedded photosensitive chip which does not require an increase in board width for the re-routing of wires around the photosensitive chip includes a circuit board and a reinforced plate at a lower elevation which is connected to the circuit board. The circuit board defines a through hole and a plurality of conductive lines. The conductive lines or the portion of them which are cut off by the location of the through hole accommodating the chip are repeated by connecting lines carried on the reinforced plate, the plurality of connecting lines connects to and continues the conductive lines which are cut off by the hole.

Abstract: A method for positioning a device includes: sending a query instruction to a server, wherein the query instruction is configured to query a target coordinate location of the terminal device. The method also includes receiving a query response from the server. The query response includes the target coordinate location and a target public key digest. The target coordinate location is obtained by encrypting a coordinate location that is positioned for the device. The target coordinate location is sent to the server as well as the target public key digest synchronously. The method also includes determining a target private key based on the target public key digest; and decrypting the target coordinate location using the target private key to obtain the coordinate location located by the device.

Abstract: An electronic device and a method for manufacturing the same are provided. The electronic device includes a first substrate, a second substrate disposed opposite to the first substrate, a first light-shielding strip disposed on the first substrate, a second light-shielding strip disposed between the first substrate and the second substrate and color filter patterns disposed on the second light-shielding strip. An overlapping region is the first light-shielding strip overlapping the second light-shielding strip and has a total thickness, a first non-overlapping region of the first light-shielding strip and a second non-overlapping region of the second light-shielding strip are outside the overlapping region, the second light-shielding strip in the second non-overlapping region has a thickness different from the total thickness. In a cross-section view, a part of the color filter patterns includes a convex portion corresponding to the first or the second light-shielding strip.

Abstract: A tiled display device includes a first panel, a second panel, a first cover layer and a second cover layer. The first cover layer is disposed on the first panel. The second cover layer is disposed on the second panel. The first cover layer and the second cover layer have a contact region. A length of the first cover layer is larger than a length of the second cover layer.

Abstract: A tiled display device includes two panels and two cover layers respectively disposed on the two panels. The two cover layers include a contact region. A top portion and a bottom portion of the contact region have a height H. One of the two cover layers has a thickness Tn. One of the two panels has a distance Xn between an upper surface of the one of the two panels and the bottom portion of the contact region. The one of the two panels is corresponding to the one of the two cover layers. The height H, the thickness Tn and the distance Xn satisfy the equation: 0<H/(Xn+Tn)<0.8.

Abstract: A display device, including a display module, a photodetector, a processor, and an optical structure layer, is provided. The display module is used for displaying an image. The photodetector is electrically connected to the display module and is used for detecting brightness of an ambient light and outputting a sensing signal. The processor is electrically connected to the display module and the photodetector, and is used for receiving the sensing signal and outputting a command signal to the display module according to the sensing signal, so that the display module adjusts brightness of the image according to the command signal. The optical structure layer is disposed on the display module. A glossiness of the optical structure layer is between 4 GU and 35 GU, and a reflectivity of specular component included (SCI) of the optical structure layer is between 3% and 6%.

Abstract: A display device, including a first display panel, a second display panel, and a first optical structure layer, is provided. The first display panel has a first display surface emitting light toward a first direction. The second display panel has a second display surface emitting light toward a second direction, wherein the first direction is different from the second direction. The first optical structure layer is disposed on the first display panel, wherein a glossiness of the first optical structure layer is between 4 GU and 35 GU, and a reflectivity of specular component included (SCI) of the first optical structure layer is between 3% and 6%. The display device provided by the disclosure can reduce the influence of ambient light from the outside on a displayed image.

Abstract: A display device includes a display panel and an optical structure layer. The optical structure layer is disposed on the display panel. A glossiness of the optical structure layer is between 4 GU and 35 GU, and a reflectivity of specular component included (SCI) of the optical structure layer is between 3% and 6%. The display device disclosed in the disclosure may reduce an influence of a displayed image from ambient light from the outside.

Abstract: A method for positioning a device includes: sending a query instruction to a server, wherein the query instruction is configured to query a target coordinate location of the terminal device. The method also includes receiving a query response from the server. The query response includes the target coordinate location and a target public key digest. The target coordinate location is obtained by encrypting a coordinate location that is positioned for the device. The target coordinate location is sent to the server as well as the target public key digest synchronously. The method also includes determining a target private key based on the target public key digest; and decrypting the target coordinate location using the target private key to obtain the coordinate location located by the device.

Abstract: A display device includes a display panel, a vibrator and an adhesive layer. The vibrator is disposed on a surface of the display panel. The adhesive layer is disposed between the display panel and the vibrator, and a part of the adhesive layer contacts the display panel and another part of the adhesive layer contacts the vibrator.

Abstract: An electronic device is provided, including a first substrate, a second substrate and a blocking component. The second substrate is opposite to the first substrate. The second substrate has a cutting edge extending along a cutting direction. The blocking component is disposed between the first substrate and the second substrate. The blocking component extends along the cutting direction and is disposed corresponding to the cutting edge.

Abstract: A tiled display device includes two panels and two cover layers respectively disposed on the two panels. The two cover layers include a contact region. A top portion and a bottom portion of the contact region have a height H. One of the two cover layers has a thickness Tn. One of the two panels has a distance Xn between an upper surface of the one of the two panels and the bottom portion of the contact region. The one of the two panels is corresponding to the one of the two cover layers. The height H, the thickness Tn and the distance Xn satisfy the equation: 0?H/(Xn+Tn) <0.8.

Abstract: A display device includes a display panel, a vibrator and an adhesive layer. The vibrator is disposed on a surface of the display panel. The adhesive layer is disposed between the display panel and the vibrator, and a part of the adhesive layer contacts the display panel and another part of the adhesive layer contacts the vibrator.

Abstract: An electronic device and a method for manufacturing an electronic device are provided. The electronic device includes a first substrate, a second substrate disposed opposite to the first substrate, a first light-shielding strip disposed on the first substrate and extending along a first direction, and a second light-shielding strip disposed between the first substrate and the second substrate and extending along a second direction different from the first direction. A portion of the first light-shielding strip overlapping a portion of the second light-shielding strip is defined as an overlapping region. The other portions of the first light-shielding strip and the second light-shielding strip outside the overlapping region are defined as a first non-overlapping region and a second non-overlapping region. The first light-shielding strip has a first thickness in the overlapping region and a second thickness in the first non-overlapping region.