Abstract: Ruthenium-iron nanoflower particles having a plurality of RuFe nanosheets, wherein the plurality of RuFe nanosheets are in a form of a nanoflower useful for the electrochemical synthesis of ammonia; an electrode including the RuFe nanoflower particles; and methods of preparation and use thereof.

Abstract: Display substrate, manufacturing method thereof and display device are provided. The display substrate includes: light-emitting substrate including light-emitting device, switch element and encapsulation layer; color conversion layer including separation bank, color conversion pattern and leveling layer, the separation bank defining first openings corresponding to pixels, including light-transmitting bank and light-shielding bank patterns, the light-transmitting bank pattern has grooves in which the light-shielding bank pattern is filled, the color conversion pattern is disposed in the first openings, the leveling layer is at least partially filled in the first opening to fill first step for forming flat surface away from the substrate; a color filtering layer including light-shielding and color filtering patterns, the light-shielding pattern defining second openings corresponding to the first openings in which the color filtering pattern is disposed in.

Abstract: A display substrate and a display device, the display substrate has a plurality of sub-pixels, and includes a base substrate, a pixel driving circuit layer, a pixel definition layer and a spacer layer. The pixel driving circuit layer is disposed on the base substrate, the pixel definition layer is disposed on a side of the pixel driving circuit layer away from the base substrate, and includes a plurality of sub-pixel openings, wherein each of the plurality of sub-pixels includes a pixel driving circuit disposed in the pixel driving circuit layer and a light-emitting device at least partially disposed in the sub-pixel opening, the spacer layer is disposed on a side of the pixel definition layer away from the base substrate, and includes a plurality of spacers, wherein a transmittance of the plurality of spacers is less than 5%.

Abstract: Provided in the present disclosure are a display substrate and a display apparatus. The display substrate comprises: a driving backplane; a light-emitting structure that is located on the driving backplane and that comprises a plurality of light-emitting devices; and a light-filtering structure located on the side of the light-emitting structure facing away from the driving backplane. The light-filtering structure comprises a plurality of light-filtering layers that correspond to at least a portion of the light-emitting devices, the light-emitting layers are provided with hollow spherical structures, and the light-filtering layers are hollow fan-shaped shapes in a cross section perpendicular to the driving backplane. The thicknesses of the light-filtering layers along the sphere center divergence direction of the hollow spherical structures are uniform.

Abstract: An image classification method is provided, including: mapping a plurality of image patches in a sample image using an image classification model, to obtain a feature map; performing combined processing of at least one layer on the feature map using the image classification model, to obtain a combined-processed feature map by: extracting an intermediate feature of a covered feature patch in a target feature map according to a determined self-attention window, determining an offset window from the self-attention window, and extracting the intermediate feature according to the offset window, to obtain a feature map; determining an image classification feature based on the combined-processed feature map, and performing visually induced feeling-based classification on the sample image according to the image classification feature; and updating a model parameter of the image classification model based on a classification result of the visually induced feeling-based classification, to obtain a target image classifi

Abstract: A display panel includes: a base substrate; a plurality of light-emitting units on the base substrate; a first light-transmitting layer on the base substrate provided with the plurality of light-emitting units; and a light-transmitting pattern on the base substrate provided with the first light-transmitting layer. The first light-transmitting layer includes a plurality of holes. An orthographic projection of a first light-emitting unit in the plurality of light-emitting units on the base substrate is overlapped with an orthographic projection of a first hole in the plurality of holes on the base substrate. The light-transmitting pattern includes a plurality of light-transmitting structures. A first light-transmitting structure in the plurality of light-transmitting structures covers the first hole and at least a portion of the first light-transmitting layer.

Abstract: The present disclosure provides a display device, including: a driving backplane; a light emitting layer, disposed on a side of the driving backplane, and including a plurality of light emitting devices that include a first light emitting device emitting light of a first color; a chiral liquid crystal layer, disposed on a side of the light emitting layer away from the driving backplane, and configured to transmit circularly polarized light of the first color in a first handedness and reflect circularly polarized light of the first color in a second handedness; and a circularly polarization layer, disposed on a side of the chiral liquid crystal layer away from the driving backplane, and configured to convert light incident from a side of the circularly polarization layer away from the driving backplane into the circularly polarized light in the first handedness.

Abstract: A display panel and a method for manufacturing the same, and a displaying device, which relates to the technical field of displaying. The display panel includes: a displaying substrate, a color light filtering layer disposed at a light exiting side of the displaying substrate. The color light filtering layer includes a first light filtering structure and a second light filtering structure of unequal thicknesses, orthographic projections of the light filtering structures on the displaying substrate cover corresponding positions of the light emitting region, and a surface of the first light filtering structure at one side away from the displaying substrate and a surface of the second light filtering structure at one side away from the displaying substrate are in a same plane.

Abstract: A content recognition method is performed by a computer device, which relate to the field of machine learning. The method includes: acquiring an image; recognizing a target region from the image by performing saliency detection on the image; extracting a key point feature representation corresponding to an image key point in the image; performing pooling on an image feature representation corresponding to the image to obtain a global feature representation; and recognizing a category of target content comprised in the target region based on the global feature representation and the key point feature representation.

Abstract: A display substrate, a preparation method thereof and a display apparatus. The display substrate comprises a substrate, multiple pixel units arranged on the substrate and a color filter layer arranged on the pixel unit, wherein the color filter layer comprises color optical filters of different colors and a touch control structure layer arranged between the color optical filters of different colors; the touch control structure layer comprises a touch control connection electrode, a first coating protective layer covering the touch control connection electrode and a touch control electrode arranged on the first coating protective layer, the touch control electrodes comprise a first touch control electrode and a second touch control electrode, and at least one of the first touch control electrode and the second touch control electrode is connected with the touch control connection electrode through a via hole penetrating through the first coating protective layer.

Abstract: There are provided a touch display panel and a touch display device, the touch display panel includes: a display substrate including a plurality of pixel regions and a spacer region spacing the plurality of pixel regions apart from each other; a black matrix located on a light-exiting side of the display substrate, an orthographic projection of the black matrix on the display substrate being located in the spacer region; and a touch control structure layer including a first touch pattern layer located on the light-exiting side of the display substrate, the first touch pattern layer including a plurality of first metal lines, where an orthographic projection of each first metal line on the display substrate is located in the orthographic projection of the black matrix on the display substrate, and the first metal lines are in contact with the black matrix.

Abstract: The display panel includes a driving backplane, light-emitting layer, light-condensing layer and light-filtering layer. The light-emitting layer is provided on a side of the driving backplane and includes light-emitting elements. The light-condensing layer is provided on a side of the light-emitting layer away from the driving backplane and has micro-lenses, and one light-emitting element corresponds to at least one micro-lens in a direction perpendicular to the driving backplane. The light-filtering layer covers the light-condensing layer and includes light-filtering parts, one light-filtering part corresponds to one light-emitting element in the direction perpendicular to the driving backplane, and the light-filtering part covers at least one micro-lens. A refractive index of the light-filtering part is greater than that of the light-condensing layer, and the micro-lens can converge at least a portion of light emitted by a corresponding light-emitting element.

Abstract: A display substrate and a display device are provided in the present invention. The display substrate includes: a base substrate; a black matrix, located above the base substrate, the black matrix including a plurality of first openings, each first opening including a first portion and a second portion, and the first portion being provided around the second portion; a pixel defining layer, located between the layer where the black matrix is located and the base substrate, the pixel defining layer including a plurality of second openings, an orthographic projection of the second opening on the base substrate overlapping with an orthographic projection of the second portion on the base substrate, and the orthographic projection of the second opening on the base substrate not overlapping with an orthographic projection of the first portion on the base substrate.

Abstract: A method for detecting a human behavior includes: obtaining an image to be detected; obtaining a plurality of key points and a plurality of pieces of position information respectively corresponding to the plurality of key points by key-point recognition on the image to be detected; grouping the plurality of key points based on the plurality of pieces of position information to obtain a plurality of key-point groups, the plurality of key-point groups at least including a part of the plurality of key points; and determining a target human behavior based on key points in the plurality of key-point groups.

Abstract: The present application provides display substrates and their manufacturing methods, and display devices. A display substrate includes a base substrate, an encapsulation layer, a filter layer and optical film layers. The encapsulation layer is located on the base substrate. The filter layer is located in the encapsulation layer. The filter layer includes black matrixes. The black matrixes include black matrix openings. The optical film layers are located on a side of the encapsulation layer away from the base substrate. The optical film layers are configured to transmit part of incident light and absorb part of the incident light. A light transmittance of the optical film layers is larger than that of the black matrixes. The optical film layers include optical film layer openings. Projections of the optical film layer openings on the base substrate are located within projections of the black matrix openings on the base substrate.

Abstract: A method of training a target object detection model includes: extracting a plurality of feature maps of a sample image according to a training parameter, fusing the plurality of feature maps to obtain at least one fused feature map, and obtaining an information of a target object based on the at least one fused feature map, by using the target object detection model; determining a loss of the target object detection model based on the information of the target object and a tag information of the sample image, and adjusting the training parameter according to the loss of the target object detection model. A method of detecting a target object and an apparatus are also provided.

Abstract: A display panel includes a substrate, a first planarization layer, a conductive pattern layer, a second planarization layer, and an anode layer that are stacked in order. A surface of the first planarization layer away from the substrate has first grooves. The conductive pattern layer includes conductive patterns. At least a portion of a conductive pattern is located in a first groove, and a surface, away from the substrate, of the at least a portion of the conductive pattern located in the first groove is substantially flush with a portion, except the first grooves, of the surface of the first planarization layer. The anode layer includes anodes. A vertical projection of the portion of the conductive pattern located in the first groove on the substrate overlaps with a vertical projection of an anode on the substrate.

Abstract: Provided is an image classification method, an electronic device and a storage medium, relating to a field of artificial intelligence technology, and specifically, to the technical fields of deep learning, image processing and computer vision, which may be applied to scenes such as image classification. The image classification method includes: extracting a first image feature of a target image by using a first network model, where the first network model includes a convolutional neural network module; extracting a second image feature of the target image by using a second network model, where the second network model includes a deep self-attention transformer network (Transformer) module; fusing the first image feature and the second image feature to obtain a target feature to be recognized; and classifying the target image based on the target feature to be recognized.

Abstract: A display substrate, a preparation method thereof and a display apparatus. The display substrate comprises a substrate, multiple pixel units arranged on the substrate and a color filter layer arranged on the pixel unit, wherein the color filter layer comprises color optical filters of different colors and a touch control structure layer arranged between the color optical filters of different colors; the touch control structure layer comprises a touch control connection electrode, a first coating protective layer covering the touch control connection electrode and a touch control electrode arranged on the first coating protective layer, the touch control electrodes comprise a first touch control electrode and a second touch control electrode, and at least one of the first touch control electrode and the second touch control electrode is connected with the touch control connection electrode through a via hole penetrating through the first coating protective layer.

Abstract: A display substrate, a preparation method thereof and a display apparatus. The display substrate comprises a substrate, multiple pixel units arranged on the substrate and a color filter layer arranged on the pixel unit, wherein the color filter layer comprises color optical filters of different colors and a touch control structure layer arranged between the color optical filters of different colors; the touch control structure layer comprises a touch control connection electrode, a first coating protective layer covering the touch control connection electrode and a touch control electrode arranged on the first coating protective layer, the touch control electrodes comprise a first touch control electrode and a second touch control electrode, and at least one of the first touch control electrode and the second touch control electrode is connected with the touch control connection electrode through a via hole penetrating through the first coating protective layer.