3312 results about "Orthographic projection" patented technology

The invention relates to a true orthophoto generation method based on a three-dimensional Gaussian model, a storage medium and equipment, and aims to solve the problems of low image quality, low generation speed, detail loss and the like in the prior art. The method comprises the following steps: firstly, acquiring image data through an unmanned aerial vehicle or aerial photography, and extracting a camera attitude and sparse point cloud by using a motion recovery structure (SfM) technology; secondly, constructing a three-dimensional Gaussian model based on the sparse point cloud, and performing iterative training through top view orthographic projection in combination with a gradient descent algorithm; in the training process, a densification strategy, a point deleting strategy, a blocking strategy and an image pyramid strategy are innovatively introduced, so that the detail expressive force and the overall quality of the image are remarkably improved. Specifically, according to the densification strategy, fine detail reconstruction is achieved by dynamically increasing Gaussian ball density, and according to the point deletion strategy, rendering efficiency is improved and computing resource allocation is optimized by eliminating redundant Gaussian balls. The image pyramid strategy generates a multi-level visual effect through multi-scale training, and the blocking strategy improves the reconstruction precision through local optimization. Finally, on the basis of the trained three-dimensional Gaussian model, real-time generation of a high-quality true orthophoto in a large-scale scene can be realized. The method has remarkable advantages in the aspects of efficiency, precision and practicability, provides important technical support for the fields of geographic information systems, urban planning, disaster monitoring and the like, and has wide application prospects.

The invention relates to a display panel, a manufacturing method thereof and a display device. The display panel comprises a substrate, peep-proof pixel units, display pixel units and a first shading structure. Each peep-proof pixel unit comprises a peep-proof sub-pixel arranged on one side of the substrate; the peep-proof pixel units are configured to be displayed in a first state; the display pixel unit comprises display sub-pixels arranged on one side of the substrate; the orthographic projection of the display sub-pixel on the substrate is arranged around at least part of the outer contour of the orthographic projection of the corresponding peep-proof sub-pixel on the substrate; the display pixel unit is configured to display in a second state; the first shading structure is arranged on one side of the substrate, and the orthographic projection of the first shading structure on the substrate is located between the orthographic projection of the display sub-pixel on the substrate and the orthographic projection of the peep-proof sub-pixel on the substrate; the orthographic projection of the first shading structure on the substrate is arranged around at least part of the outer contour of the orthographic projection of the peep-proof sub-pixel on the substrate; therefore, the dynamic peep-proof effect of the display panel can be realized, and the display effect and the peep-proof effect of the display panel are improved.

The invention provides a display panel, a display device and a manufacturing method of the display panel, the display panel comprises a substrate, a pixel defining layer, an isolation structure and a pixel unit, the pixel defining layer is arranged on the substrate, and the pixel defining layer is provided with a pixel opening; the isolation structure is arranged on the side, away from the substrate, of the pixel defining layer, an isolation opening is defined by the isolation structure, the orthographic projection of the pixel opening on the substrate falls into the orthographic projection range of the isolation opening on the substrate, and the isolation structure comprises a first structure layer, a second structure layer and a third structure layer which are sequentially stacked in the direction away from the substrate; the orthographic projection of the second structural layer on the substrate falls into the orthographic projection range of the first structural layer on the substrate, and the etching resistance of the first structural layer is higher than that of the second structural layer; each pixel unit comprises a first electrode, the first electrodes are at least arranged in the pixel openings and the isolation openings, and the first electrodes are at least in lap joint with the first structure layer.

An electronic device includes: a projector; a camera; one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the electronic device to: control the projector to display a projected image on a screen, wherein the screen includes surfaces; control the camera to obtain a captured image including the surfaces and the projected image; identify, based on the captured image, shapes of the surfaces and areas of the projected image projected onto the surfaces; and correct the projected image, based on the shapes of the surfaces and the areas of the projected image, by transforming the projected image into one from among a three-dimensional image and a flat image.

An image reconstruction method and system based on a sparse graph set. The method comprises the following steps: using CT scanning to obtain a sparse angle projection graph set; performing back projection on the sparse angle projection graph set to obtain an initial iteration value of volume data; calculating initial values of three directional gradient fields of the initial iteration value of the volume data; on the basis of the initial iteration value of the volume data and the initial values of the three gradient fields, respectively calculating orthographic projection and residual back projection; performing, by means of a neural network and by using the initial values of the three gradient fields, regularization processing on data having undergone orthographic projection and data having undergone residual back projection; performing addition on an integral of the volume data and the gradient fields to serve as an initial value of next iteration, iterating again until completion and outputting a result. The method can obtain projection data required by reconstruction in a short period of time, and can effectively process the sparse angle / finite angle problem to obtain a high-quality image reconstruction result.

The invention relates to a deep learning technology, and provides a dual-energy cone beam CT metal artifact suppression reconstruction method, device and equipment and a storage medium, and the method comprises the steps: carrying out the attenuation processing of high-energy original data and low-energy original data which are obtained in advance, and obtaining a dual-energy initial projection image of a scanned object; sequentially performing three-dimensional reconstruction, threshold segmentation and forward projection on the dual-energy initial projection image to obtain a metal mask projection image; carrying out metal artifact suppression processing on the high-energy initial reconstruction image and then carrying out forward projection to obtain a metal prior projection image; performing information correction on the dual-energy initial projection image according to the metal mask projection image and the metal prior projection image to obtain a dual-energy correction projection image; and generating a dual-energy correction reconstructed image of the dual-energy correction projection image, and performing energy spectrum synthesis on the dual-energy correction reconstructed image to obtain a virtual single-energy image with metal artifacts eliminated. According to the invention, the quality of reconstructed images can be improved.

The invention relates to the technical field of projectors, in particular to an intelligent picture geometric distortion control method based on machine vision and an image projector, and the method comprises the steps: obtaining image data of a to-be-corrected projection picture, and carrying out the feature analysis of the image data, so as to obtain a distortion feature value; matching a correction optimization model corresponding to the distortion characteristic value, so as to call a correction parameter from a preset correction parameter library through the correction optimization model; simulating a correction process corresponding to the projection picture to be corrected according to the correction parameter; the correction parameters are adjusted according to the correction process, and the projection picture to be corrected is corrected according to the adjusted correction parameters, the corresponding correction optimization model is matched based on the characteristic values, the adaptive correction parameters can be dynamically called from the preset parameter library, the limitation of a traditional fixed algorithm is changed, and the correction efficiency is improved. The correction strategy is highly coupled with the actual distortion scene, and the correction efficiency and pertinence are remarkably improved.

The invention discloses a display substrate, a manufacturing method thereof and a display device. The display substrate comprises a plurality of first electrodes (31) and a plurality of pixel definition structures (32), the first electrodes (31) and the pixel definition structures (32) are arranged on a substrate (10), and the pixel definition structures (32) are arranged between the adjacent first electrodes (31) and form pixel openings (35) exposing the first electrodes (31); the pixel defining structure (32) at least comprises a first insulating layer (101), a second insulating layer (102), a third insulating layer (103) and a fourth insulating layer (104). The orthographic projection of the second insulating layer (102) on the substrate is at least partially overlapped with the orthographic projection of the first electrode (31) on the substrate; the surface of the second insulating layer (102) is provided with a second recess (106), and the inner wall of the side, close to the substrate, of the second recess (106) is located between the surface of the side, away from the substrate, of the first electrode (31) and the surface of the side, close to the substrate, of the first electrode (31).

The invention relates to an AR near-to-eye display technology, in particular to a two-dimensional vector body holographic grating waveguide and a manufacturing method thereof, an AR optical module and a manufacturing method, and the method comprises the steps: fixing a holographic plate to be exposed, and building a rectangular coordinate system with a second surface of the holographic plate as an XOY plane; dividing the same exposure light into a first light beam and a second light beam, enabling the first light beam to vertically irradiate the first surface of the holographic plate, and enabling the second light beam to irradiate the second surface of the holographic plate at a # imgabs0 # incident angle so as to form a volume holographic grating with a first grating component; enabling the first light beam to vertically irradiate the first surface of the holographic plate, and enabling the second light beam to irradiate the second surface of the holographic plate at a # imgabs1 # incident angle to form a volume holographic grating with a second grating component; wherein the propagation direction of the orthographic projection of the volume holographic grating vector of the first grating component on the second surface and the propagation direction of the orthographic projection of the volume holographic grating vector of the second grating component on the second surface are symmetric about the X axis.

The invention relates to the technical field of robots, in particular to a dexterous hand finger, a dexterous hand and a robot, and aims to solve the problem that the size of the dexterous hand finger with three active degrees of freedom is large. According to the dexterous hand finger, the first knuckle can have the functions of laterally swinging and rotating towards the palm side or the hand back side through the first linear driving assembly and the second linear driving assembly which are connected in parallel, and the knuckle assembly has the function of rotating towards the palm side or the hand back side through the third linear driving assembly. Due to the fact that the third straight line can be parallel to the palm base plate, on the plane perpendicular to the second axis, the distance between the orthographic projection of the third straight line and the orthographic projection of the first straight line in the extending direction of the first axis is gradually reduced in the direction from the third straight line to the first knuckle. The circumferential size of the end, away from the knuckle assembly, of the first knuckle is small, and the space occupied by the three linear driving assemblies in the palm is close to the shape of the palm of a person.

The three-axis Hall magnetic sensing chip comprises a magnet gathering body, a first Hall element group and a second Hall element group, the first Hall element group and the second Hall element group are arranged in a plane at intervals, the magnet gathering body is arranged on Hall elements, and the orthographic projection of the magnet gathering body on a Hall plane has a first direction symmetry axis and a second direction symmetry axis which are orthogonal. The first Hall element group comprises two first Hall elements which are connected in a contrast difference mode, wherein the magnetic induction centers of the two first Hall elements are located on a first-direction symmetric axis and are symmetrically arranged relative to a second-direction symmetric axis. The second Hall element group comprises two second Hall elements which are located on the same side of the first direction symmetry axis and are symmetrically arranged relative to the second direction symmetry axis, and the magnetic induction centers of the two second Hall elements are perpendicular to the connecting line between the orthogonal intersection points of the first direction symmetry axis and the second direction symmetry axis; the magnetism gathering body is located on one side of the connecting line of the two magnetic induction centers. According to the invention, a high inter-axis signal rejection ratio is realized, and the Z-axis signal can be directly output.

Provided in the present disclosure are a display panel and a manufacturing method therefor. The display panel is provided with a display area and a non-display area, and comprises a substrate and, located on the substrate, an encapsulation structure, a protective layer and a plurality of light-emitting devices; the light-emitting devices are located in the display area; the encapsulation structure is located on the side of the light-emitting devices away from the substrate, and comprises a first encapsulation layer and a second encapsulation layer located on the side of the first encapsulation layer facing away from the substrate, the first encapsulation layer and the second encapsulation layer covering the light-emitting devices, and the orthographic projection of the second encapsulation layer on the substrate being located in the display area and the non-display area; at least part of the protective layer is located in the non-display area and located on the side of the second encapsulation layer close to the substrate; in the non-display area, the protective layer is in direct contact with the second encapsulation layer, the material types of the protective layer and the second encapsulation layer being the same as each other. During the preparation process of the first encapsulation layer, the protective layer can protect structures beneath so as to avoid damage to the substrate or structures between the substrate and the protective layer, thus ensuring the quality of the display panel.

The invention discloses a display panel and a display device, the display panel comprises an array substrate, the array substrate comprises a substrate, a first conductive layer, an insulating layer and a second conductive layer, the first conductive layer comprises a first signal line and a second signal line which extend along a first direction, the second conductive layer comprises a third signal line and a fourth signal line which extend in the second direction, and the third signal line and the fourth signal line transmit the same signal; in the direction perpendicular to the substrate, the first signal line and the third signal line have a first overlapping area and are electrically connected in the first overlapping area, the second signal line and the fourth signal line have a fourth overlapping area and are electrically connected in the fourth overlapping area, and the first signal line and the fourth signal line have a second overlapping area and are insulated. The second signal line and the third signal line have a third overlapping area and are insulated. The orthographic projection of the second overlapping area and the orthographic projection of the third overlapping area on the substrate are at least partially located in the orthographic projection of the pixel opening on the substrate. The display panel provided by the invention can improve the color cast of the display panel.

The present application relates to a display panel, a display device and a method for preparing a display panel. The display panel comprises: a substrate; an isolation structure, a plurality of openings being formed by means of the enclosure of the isolation structure; and a light-emitting functional layer, which is arranged on the substrate, wherein the light-emitting functional layer comprises a first light-emitting structure arranged in a first opening and a second light-emitting structure arranged in a second opening; in a thickness direction, the thickness of the second light-emitting structure is greater than the thickness of the first light-emitting structure; the isolation structure comprises a first part and a second part, which are sequentially arranged in a direction away from the substrate; an orthographic projection of the first part on the substrate is located within an orthographic projection of the second part on the substrate; and the length of a portion, which protrudes from the first part, of the side of the second part facing the first opening is defined as L1, and the length of a portion, which protrudes from the first part, of the side of the second part facing the second opening is defined as L2, where L1＜L2. In the present application, the reliability of the display panel can be improved.

The invention discloses a wafer position detection device and semiconductor equipment. A first annular sliding rail and a second annular sliding rail of the wafer position detection device are oppositely arranged on the upper side and the lower side of a semiconductor cavity. The transmitting end of the linear sensor is slidably connected with the first annular sliding rail, and the receiving end of the linear sensor is slidably connected with the second annular sliding rail. The orthographic projection of the linear sensor transmitting end on the wafer and the orthographic projection of the linear sensor receiving end on the wafer are partially overlapped with the wafer; the processor is used for controlling the driver to drive the linear sensor transmitting end and the linear sensor receiving end to slide synchronously; a linear sensor transmitting end is controlled to transmit a detection signal, and a linear sensor receiving end is controlled to receive the detection signal which is not shielded by the wafer; determining the circle center position of the wafer according to the detection signal received by the receiving end of the linear sensor; wherein the detection signal can penetrate through the semiconductor chamber. The problems that an existing process chamber is difficult to seal and needs a cooling system are solved.

A display substrate and a manufacturing method therefor, and a display device. The display substrate comprises a plurality of circuit units; each circuit unit comprises a pixel driving circuit, a first scanning signal line (31), a second scanning signal line (32), a third scanning signal line (33), and a light-emitting signal line (35); the pixel driving circuit comprises at least an eighth transistor (T8) and a ninth transistor (T9); the orthographic projection of the first scanning signal line (31) on the plane of the display substrate is at least partially overlapped with the orthographic projection of the second scanning signal line (32) on the plane of the display substrate; the orthographic projection of the third scanning signal line (33) on the plane of the display substrate is at least partially overlapped with the orthographic projection of the light-emitting signal line (35) on the plane of the display substrate; and the orthographic projection of the eighth transistor (T8) on the plane of the display substrate is at least partially overlapped with the orthographic projection of the ninth transistor (T9) on the plane of the display substrate.

Provided is a display substrate, including: a substrate; a first electrode layer, a pixel defining layer, a first film layer group, and a second film layer group, which are disposed on the base substrate along a direction away from the base substrate. The first film layer group includes a first portion and a second portion, where an orthographic projection of the first portion on the base substrate at least partially overlaps with an orthographic projection of the first electrode layer, an orthographic projection of the second portion on the base substrate at least partially overlaps with an orthographic projection of the pixel defining layer on the base substrate, and the first portion and the second portion are interrupted. The second film layer group includes a first portion and a second portion, which extend continuously.

The invention relates to the technical field of display, and particularly provides a display panel, a display device and a preparation method of the display panel, and the display panel comprises a substrate and an isolation structure; the isolation structure is located on one side of the substrate and comprises a supporting part and a crown part, the crown part is located on the side, back to the substrate, of the supporting part, the side, back to the crown part, of the supporting part is a first surface, the side, back to the supporting part, of the crown part is a second surface, and an isolation opening is formed in the isolation structure; the end, close to the isolation opening, of the crown part inclines towards the direction close to the substrate, the isolation opening comprises a first opening, a second opening and a third opening, and the distance between the orthographic projection of the end, close to the first opening, of the first surface on the substrate and the orthographic projection of the end, close to the first opening, of the second surface on the substrate is a first length; the distance between the orthographic projection of one end, close to the second opening, of the first surface on the substrate and the orthographic projection of one end, close to the second opening, of the second surface on the substrate is a second length; the distance between the orthographic projection of one end, close to the third opening, of the first surface on the substrate and the orthographic projection of one end, close to the third opening, of the second surface on the substrate is a third length, the first length is not smaller than the second length, and the second length is not smaller than the third length.

A display substrate has a display region. The display region includes at least a first region, and the first region includes a plurality of first sub-pixel regions. The display substrate includes: a substrate; a plurality of first sub-pixels disposed on a side of the substrate; and a pattern layer disposed on a side of the plurality of first sub-pixels away from the substrate. The pattern layer includes a first pattern and a plurality of second patterns. Boundaries of orthographic projections of part of the second patterns located in the first region on the substrate respectively coincide with boundaries of the first sub-pixel regions; or boundaries of the first sub-pixel regions are respectively located within boundaries of orthographic projections of part of the second patterns located in the first region on the substrate. A portion of the first pattern located in the first region is electrically connected to the first cathode.

Provided is a display substrate, which includes a base substrate, a circuit structure layer disposed on the base substrate, multiple ultrasonic sensing elements and multiple micro light-emitting elements. The multiple ultrasonic sensing elements are disposed on a side of the circuit structure layer away from the base substrate, and are electrically connected to the circuit structure layer, and the multiple light-emitting elements are disposed on the side of the circuit structure layer away from the base substrate, and are electrically connected to the circuit structure layer. An orthographic projection of the multiple ultrasonic sensing elements on the base substrate does not overlap with an orthographic projection of the multiple micro light-emitting elements on the base substrate.

The invention discloses a projection lens and a projection illumination system. The projection lens comprises a first lens, a second lens, a third lens and a fourth lens which are coaxially arranged in sequence from an image side to an object side, the diopter of the first lens is negative, the diopter of the second lens is negative, the diopter of the third lens is positive, and the diopter of the fourth lens is positive. By limiting the ratio of the focal length of an optical system to TTL * F.NO, the projection lens can be ensured to have the characteristic of large aperture, the size of the lens is effectively reduced, the ultrathin characteristic and miniaturization of projection are realized, the total length of the projection lens along the optical axis direction is reduced to be less than 23mm, the size of the projection lens is reduced, and the size of the projection lens is reduced. Therefore, the lamp is more suitable for the welcome lamp of the vehicle.

Provided are a display substrate, a method for manufacturing a display substrate and a display apparatus. The display substrate includes a base, a drive structure layer disposed on the base, a light emitting element disposed on the drive structure layer, an encapsulation layer disposed on the light emitting element, a circular polarizer layer disposed on the encapsulation layer, and a lens definition layer and a lens structure layer disposed on the circular polarizer layer. The light emitting element includes a pixel definition layer provided with a plurality of sub-pixel openings; the lens structure layer includes a plurality of lenses disposed at intervals, the lens definition layer is disposed in a gap region between adjacent lenses, and an orthographic projection of each lens on the base contains an orthographic projection of a sub-pixel opening on the base.

The embodiment of the invention provides an array substrate and a display panel. The array substrate includes: a plurality of first active patterns; a plurality of first metal lines; a plurality of conductive parts; the conductive part comprises a first conductive part and a second conductive part which are distributed along the first direction; wherein the adjacent first metal wires on the two sides of the conductive part comprise first sub-metal wires and second sub-metal wires; wherein the first sub metal wire is electrically connected with the second part; the first part is electrically connected with the first electrode through the conductive part; at least the distance between the orthographic projection of the second conductive part on the substrate and the orthographic projection of the first sub-metal wire on the substrate is larger than the distance between the orthographic projection of the second conductive part on the substrate and the orthographic projection of the second sub-metal wire on the substrate.

A display substrate and a manufacturing method therefor, and a display device. The display substrate comprises a plurality of first electrodes (31) and a plurality of pixel definition structures (32) which are arranged on a base substrate (10), wherein each pixel definition structure (32) is arranged between adjacent first electrodes (31), and forms a pixel opening (35) exposing the first electrodes (31); and each pixel definition structure (32) comprises at least a first insulating layer (101), a second insulating layer (102), a third insulating layer (103) and a fourth insulating layer (104). The orthographic projection of the second insulating layer (102) on the base substrate (10) at least partially overlaps the orthographic projection of the first electrode (31) on the base substrate (10); second recesses (106) are provided in the surface of the second insulating layer (102); and an inner wall on the side of each second recess (106) close to the base substrate (10) is located between the surface on the side of the first electrode (31) away from the base substrate (10) and the surface on the side of the first electrode (31) close to the base substrate (10).

The present application relates to a display panel, a display apparatus, and a method for manufacturing a display panel. The display panel includes: a base plate including a pixel definition layer, the pixel definition layer including a plurality of pixel openings, an isolation structure being arranged at a side of the base plate close to the pixel definition layer, and an orthographic projection of the isolation structure on the pixel definition layer being spaced apart from the pixel opening and arranged around the pixel opening; a plurality of sub-pixels; and an encapsulation structure including a plurality of sub-encapsulation portions, the sub-encapsulation portion including a first encapsulation sub-layer and a second encapsulation sub-layer and in a thickness direction of the display panel, an area of an orthographic projection of the second encapsulation sub-layer being less than an area of an orthographic projection of the first encapsulation sub-layer.

The embodiment of the invention provides a display device, a fingerprint identification method thereof and electronic equipment, and relates to the technical field of display. The display device comprises a display panel, a friction assembly and an optical fingerprint element, the friction assembly is located on the light emitting side of the display panel, the optical fingerprint element is located on the backlight side of the display panel, and the orthographic projection of the friction assembly on the display panel is located in the orthographic projection of the optical fingerprint element on the display panel. According to the display device, the authenticity of the finger is judged by arranging the friction assembly, and the matching degree of the fingerprint is judged by combining the optical fingerprint element, so that the anti-counterfeiting capability and the use safety of the display device are improved. Furthermore, the orthographic projection of the friction assembly on the display panel is located in the orthographic projection of the optical fingerprint element on the display panel, so that the misjudgment of the display device on the combination of the true fingerprint of the real finger and the false fingerprint of the false finger is avoided, and the anti-counterfeiting capability of the display device and the use safety of the display device are further improved.

The utility model discloses a spinneret assembly, which comprises a distribution plate and a spinneret plate provided with spinneret orifices, the distribution plate comprises a first runner used for simultaneously introducing a first component and a second component into the spinneret orifices, and a second runner used for introducing a third component into the spinneret orifices; the number of the first flow channels and the number of the second flow channels are respectively multiple, every two adjacent first flow channels are separated by one second flow channel, the multiple second flow channels are mutually separated or the axial leads of the second flow channels are mutually intersected at the same point, and the orthographic projection of the first flow channels and the orthographic projection of the second flow channels are all located in the orthographic projection range of inlets of the spinneret orifices; the spinneret assembly can continuously and stably eject composite fibers with normal sizes and specific structures on the basis of three components, and superfine fibers with at least one excellent effect in the aspects of elasticity, glossiness, strength such as tearing strength and the like can be obtained by removing single-component fibers in the composite fibers.

A display panel is provided. The display panel includes a plurality of subpixels, a plurality of antenna units, a color filter and a black matrix. The color filter includes a plurality of color filter blocks. An orthographic projection of a respective color filter block of the plurality of color filter blocks on a first base substrate at least partially overlaps with an orthographic projection of a third electrode on the first base substrate, and at least partially overlaps with an orthographic projection of a fourth electrode on the first base substrate. An orthographic projection of the black matrix on the first base substrate at least partially overlaps with an orthographic projection of a first electrode on the first base substrate, and at least partially overlaps with an orthographic projection of a second electrode on the first base substrate.

The invention provides a display panel, a preparation method thereof and a display device. The display panel comprises a substrate, a plurality of pixel rows, a first lens layer and a second lens layer. The orthographic projection of the first lens on the substrate covers the orthographic projection of one pixel on the substrate, the second lens covers the orthographic projection of one pixel group on the substrate, and the pixel group comprises a plurality of pixels at the same order in at least part of pixel rows and a plurality of pixels adjacent to the plurality of pixels at the same order in the first direction. A first lens is prepared above a pixel, so that light of different sub-pixels is gathered to the center of the first lens; the second lens is further arranged above the two adjacent pixels in the first direction, the second lens is located on the side, away from the substrate, of the first lens, emergent light of the two adjacent pixels is effectively separated through the second lens, and therefore the problem of light crosstalk between the adjacent pixels is effectively solved.