50 results about "Video wall" patented technology

The invention discloses a spliced screen phase synchronization method and device, a storage medium and a computer program product, and relates to the technical field of computer multimedia, and the method comprises the steps: selecting a master node and a slave node from a distributed decoder system; calculating a phase error value of the second vertical synchronization signal in the slave node and the first vertical synchronization signal in the master node; and if the phase error value exceeds a preset error threshold value, adjusting a frequency multiplication coefficient in a node phase-locked loop to perform phase synchronization. And the slave node phase is pulled to the master node by adjusting the frequency multiplication coefficient of the node phase-locked loop, so that the phase synchronization of the master and slave nodes is realized. As the adjusting quantity is small and only parameters of the node phase-locked loop are modified, and no hardware is added, low-cost multiplexing on all universal embedded processors can be realized, and high-precision phase synchronization among distributed decoders is realized in a low-cost and universal manner.

This invention relates to a domestically produced method for monitoring the unauthorized use of mobile phones, belonging to the field of information security protection technology. The system of this invention includes network cameras, a domestically produced intelligent server, access control, client terminals, a video wall, and a switch. The network cameras and access control are deployed in the monitoring location; the switch and the domestically produced intelligent server are deployed in the server room; the video wall is deployed in the monitoring room; and the client terminals are deployed in the office. The method of this invention includes: video acquisition, video analysis, display of analysis results, and access control linkage control. This invention uses domestically produced CPUs and domestically produced accelerator cards, making it more secure and eliminating the risk of sanctions or backdoors; it can automatically control access, promptly preventing unauthorized mobile phone users from escaping the scene, thus buying valuable time to prevent information leaks.

This disclosure provides a video wall display and a control system for the video wall display. The video wall display includes multiple interconnected displays, multiple control modules, and a communication bus. Each control module is equipped with an image processing algorithm. Each control module is configured to receive video information and send edge signal supplementation requests to other control modules. Based on the address information carried in the edge signal supplementation requests, the control module determines whether the communication bus is occupied by itself. If occupied, the control module acts as the master control module, and the other control modules corresponding to the address information occupying the communication bus act as slave control modules. Upon gaining control of the communication bus, the control module reads at least some edge information from the slave control modules via the communication bus. The received video information and multiple at least some edge information are processed to generate sub-image information to be displayed. The displays are configured to display the received sub-image information.

The invention discloses a display panel, a display device and a tiled display device. The display panel comprises a substrate and a plurality of connecting leads. The substrate comprises a first surface, a second surface and at least one side face, the first surface and the second surface are oppositely arranged, the at least one side face is connected with the first surface and the second surface, and the at least one side face is a selected side face. Each of the plurality of connection leads extends from the first surface to the second surface through the selected side surface. The plurality of connecting leads comprise a first connecting lead and a second connecting lead, and the first connecting lead and the second connecting lead are adjacent and arranged on different layers in the direction perpendicular to the surface of the substrate. The display panel is used for displaying images.

The utility model belongs to the field of office conference equipment, and particularly relates to a multimedia conference computer all-in-one machine which comprises an assembly frame and an LED splicing screen, the assembly frame is provided with an installation frame, the installation frame is provided with an inserting opening, the installation frame is provided with a connecting block, the connecting block is provided with an inserting hole, the installation frame is provided with a fixing block, and the fixing block is provided with a guide rod. The multimedia conference computer all-in-one machine comprises a fixing frame, an adjusting rod is assembled on the fixing frame, a guide rod is assembled on the adjusting rod, a movable block is assembled on the guide rod, a positioning rod is assembled on the movable block, the positioning rod is connected with an inserting hole in an inserted mode, and an assembling plate is assembled on the movable block. The problems that due to bolts, installation between an LED splicing screen and an installation frame of a fixing frame is tedious, the operation intensity is large, disassembly and assembly are inconvenient, meanwhile, the conditions that the bolts are lost and the number of the bolts is not enough occur, and great troubles are brought in the installation process are solved.

The present disclosure relates to an image display device and a video wall having same. An image display device according to an embodiment of the present disclosure comprises: a plurality of light-emitting diodes; and a driving control unit that outputs a scan signal to the plurality of light-emitting diodes for each of a plurality of sub-frame periods, and outputs a data signal for displaying an image, wherein the driving control unit turns on or off the plurality of light-emitting diodes on the basis of a first clock signal, during some sub-frame periods among the plurality of sub-frame periods, and turns on or off the plurality of light-emitting diodes on the basis of a second clock signal, which is different from the first clock signal, during some other sub-frame periods among the plurality of sub-frame periods. Accordingly, it is possible to reduce power consumption while maintaining gradation expression.

This invention provides a video signal processing method, apparatus, system, and storage medium based on a video wall display. The video wall display includes at least two screens, each corresponding to the same clock generator. Each screen corresponds one-to-one with a video output interface of a decoding device. The method is applied to the decoding device and includes: sending a video signal to a target screen corresponding to the video output interface of the decoding device, so that the target screen determines the timing difference between the clock signal generated by the clock generator and the synchronization signal in the video signal; obtaining the timing difference from the target screen; and sending a new video signal to the target screen based on the timing difference. This invention can achieve image synchronization even with multiple decoding devices.

This utility model discloses an LED video wall frame structure, including a long frame and corner blocks. An insert is installed on the left side of the long frame, and the corner blocks are installed on the right side of the long frame. A short frame is installed below the corner blocks. Hex socket screws are installed inside the inserts, and the hex socket screws are threaded to the inserts. A connecting block is installed at the rear end of the long frame, and the connecting block is welded to the long frame. Compared with existing video wall frame structures, this LED video wall frame structure connects a certain number of long frames to each other using inserts according to the size of the video wall, and then fixes them with hex socket screws. The short frames are connected and installed using the same method. After the long and short sides are inserted into the edge of the video wall, the corner blocks are used to connect the long and short sides, thereby fixing the video wall inside the frame. This allows for free adjustment of the specific frame size according to needs, resulting in better versatility of the device.

1. The name of the design product: video exhibition stand (V1200A3E). 2. The use of the design product: desktop shooting equipment for online teaching, calligraphy and painting training, video conference, medical and other scenes. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

This invention relates to a method and device for integrated central control and demonstration in exhibition halls based on local area network (LAN) communication. The method connects a central control terminal and designated demonstration devices to a LAN environment via network cables or access points (APs) connected to a switch in the exhibition hall. Designated demonstration devices include projectors, interactive voice screens, and video wall displays. Each designated demonstration device exposes its control interface via an HTTP server. The central control terminal's control interface for the designated demonstration devices is invoked, and control commands from the central control terminal are sent to the control interface of the designated demonstration devices via HTTP. The designated demonstration devices present the control content through a pre-set application and return the control results to the central control terminal, thus achieving control interaction between the central control terminal and the designated demonstration devices. This invention enables unified control of the content displayed on all equipment in the exhibition hall, requiring only one central control terminal to complete the entire explanation process; data interaction becomes convenient and stable.

The present technology pertains to an image processing device, an image processing method, and a program that make it possible to accurately describe a reflection-based image on a real object in capturing an image displayed on a display device and an image of the real object. The selection unit uses the three-dimensional model to generate a CG image to be displayed on the video wall and captured by the video imaging device. In the CG image, a viewpoint position of a region within a capture range of the video imaging apparatus is different from a viewpoint position of a region outside the capture range. The present technology can be applied to, for example, a PC of a virtual fabrication imaging system including a video imaging device, a video wall on which a CG image captured by the video imaging device is displayed, a PC, a video wall controller, and a depth sensor.

The image display apparatus and a video wall including the same according to an embodiment of the present disclosure includes: a panel including a plurality of light emitting diodes; a scan driver to output a scan signal; a data driver to output a data signal; and a controller to control the data driver, and the data driver includes a plurality of data driving integrated circuits, and the data driving integrated circuit includes a current source, a switch disposed between the current source and the light emitting diode, and a coupling compensator to output a compensation signal for compensating coupling noise caused based on turn-on or turn-off of the switch. Accordingly, luminance uniformity between the plurality of light emitting diodes may be maintained.

A video wall and system is disclosed having a computer with a memory or access to a public or private cloud containing a video file and a processor for executing the video file and a plurality of light emitting diode (LED) tiles interconnected to one another and to the computer via wired or wireless transmission, each of the plurality of LED tiles configured to work together to display a video content generated from the video file that extends across all of the plurality of LED tiles. Upon user interaction or detection of a user, one or more of the plurality of LED tiles seamlessly transitions away from the video content to display a separate video content for interaction with the user.

A video wall and display device are disclosed. The video wall includes: a plurality of first display panels (1a) spliced ​​together, each first display panel (1a) including a first display area (AA1) and a first non-display area (NA1) surrounding the first display area (AA1); the first non-display area (NA1) is a light-transmitting area; a plurality of second display panels (2a), each second display panel (2a) located on the non-display side of the first display panel (1a), each second display panel (2a) including a second display area (AA2) and a second non-display area (NA2) surrounding the second display area (AA2), the second display panels (2a) having the same light emission direction as the first display panels (1a); wherein, there is a gap between the first display areas (AA1) of two adjacent first display panels (1a), the gap including at least a portion of the first non-display areas (NA1) of the two adjacent first display panels (1a); the second display areas (2a) and the gap overlapping in the thickness direction of the video wall.

The present disclosure relates to an image display apparatus and a video wall including the same. The image display apparatus according to an embodiment of the present disclosure includes: a panel with a plurality of light emitting diodes; and a driving controller configured to output a scan signal to the plurality of light emitting diodes during each of a plurality of subframe periods, wherein, in response to the gray level of a frame including a plurality of subframes being above a predetermined level, the driving controller outputs a data signal based on pulse width modulation to the light emitting diodes, and in response to the gray level of the frame being below the predetermined level, the driving controller outputs a data signal based on pulse amplitude modulation to the light emitting diodes while dividing the gray level of the frame and distributing the divided gray level across at least part of the subframes. Accordingly, it is possible to efficiently reduce flicker.

An image processing method is carried out by a processor unit configured to input the first image from the camera to determine the portions to be masked in a first image comprising at least one object in front of a video wall display in which a displayed background image is shown and a captured background image of the displayed background image being captured by the camera. Accordingly, the method comprises the steps of determining a camera position and a camera point of view from which the camera receives the first image, accessing a background image that is the source of the displayed background image shown on the video wall display when the camera receives the first image, and creating an edited background image by editing the accessed background image according to a video wall display position information recorded in a memory unit.

The invention discloses an installation assembly and a spliced screen, and belongs to the technical field of electronic equipment. The installation assembly comprises a first wall-mounted assembly and a second wall-mounted assembly, the first wall-mounted assembly and the second wall-mounted assembly are both used for installing a screen body to an installation face, the first wall-mounted assembly comprises a first supporting piece and a first hanging piece, and the second wall-mounted assembly comprises a second supporting piece and a second hanging piece. The spliced screen comprises a plurality of screen bodies, a plurality of first wall-mounted assemblies and a plurality of second wall-mounted assemblies. According to the invention, the relative positions of the adjacent screen bodies in the left-right direction can be adjusted through the first hanging assembly, and the relative positions of the adjacent screen bodies in the up-down direction and the front-back direction can be adjusted through the second hanging assembly, so that the left-right splicing, up-down alignment and front-back alignment of the adjacent screen bodies are more accurate in the mounting process of the spliced screen; the splicing gap between the screens is reduced or eliminated, the front-back segment difference between the screens is reduced or eliminated, and the display effect and the touch use effect are improved.

The video wall display includes: a first display device including a first display area and a first pad area having a groove; and a second display device including a second display area and a second pad area overlapping the second display area, the second pad area having a protrusion, wherein the protrusion is inserted into the groove to connect the first pad area and the second pad area.

The utility model discloses a space-saving multi-purpose movie and television wall for interior design, which comprises a wall body and a groove arranged at the center of the wall body, a fixed storage cabinet is arranged in the groove, a movable television cabinet is connected in the fixed storage cabinet through a turnover mechanism, an adjustable frame mechanism is arranged at the front end of the movable television cabinet, and the movable television cabinet is connected with the adjustable frame mechanism. The turnover mechanism comprises a set of opposite fixed sliding rails, a set of first hinge bases, a set of second hinge bases, a set of connecting rods and a pulling handle. The movable television cabinet has the advantages that through the turnover mechanism connected to the rear end of the movable television cabinet, the movable television cabinet is manually pulled, a set of connecting rods and a set of sliding blocks are matched, the movable television cabinet can be turned over, television storage is achieved, articles can be placed in the storage groove, space is fully utilized, and the movable television cabinet is convenient to use. And the adjustable frame mechanism adopts the first adjusting motor to be matched with the second adjusting motor, the height and the pitching angle of the television can be adjusted through the television mounting frame, and use is convenient.

In multi-display systems, such as video walls, comprising a control computing system providing content to multiple display computing systems driving a plurality of displays, the refresh rates of the displays can drift over time. This drift can introduce display artifacts, which can make for an unpleasant viewing experience. To counteract display refresh drift, a control system periodically compares display refresh timestamps of the individual display systems to a reference display refresh timestamp of a reference display system. If the difference exceeds a threshold, the control system determines clock adjustment information that is sent to the display system exhibiting drift. The display system utilizes the clock adjustment information to adjust the frequency of a display system clock, which can be done by writing the clock adjustment information to registers that control the behavior of a phase-locked loop that generates the clock used by display refresh circuitry.

The present disclosure relates to a video display device and a video wall having same. According to one embodiment of the present disclosure, the video display device comprises: a light-emitting diode; a first switching element connected to an anode of the light-emitting diode and performing switching; a second switching element connected to a cathode of the light-emitting diode; a third switching element disposed between the anode of the light-emitting diode and a ground terminal; and a driving control unit outputting a scan signal to the second switching element for each of a plurality of subframe periods and outputting a variable pulse width-based data signal of the first switching element. The driving control unit outputs a discharge control signal for turning on the third switching element after a turn-on period of the first switching element based on the data signal. Accordingly, power consumption can be reduced.

The invention relates to an image display device and a video wall having the same. An image display device according to an embodiment of the present invention comprises: a panel provided with a plurality of light emitting diodes; and a drive control unit that outputs a scan signal to the plurality of light-emitting diodes for each of the plurality of subframe periods. The drive control section includes a buffer that stores frame data; if the first mode is in which the frame rate or the vertical synchronization signal changes, and the frequency of the changed vertical synchronization signal is lower than a reference frequency, the drive control section controls to repeat the frame data stored in the buffer and outputs only a portion of the subframe data within the repeated frame data without outputting the other portion. As a result, flicker can be reduced when the frame rate or the vertical synchronization signal changes.

The invention discloses a method for increasing the display information amount of a front-end page, and relates to the technical field of page information display, and the method comprises the steps: calculating the number of pixels to be hidden of an abutted seam according to the pixel pitch of a single panel and the millimeter width of the abutted seam; calculating the quantization error of the abutted seam according to the number of pixels to be hidden; constructing a logic coordinate correction function of the target video wall according to the quantization error and a logic coordinate of a content presentation layer in the target video wall; and constructing a target function of the content presentation layer, generating a constraint condition of the target function based on the logic coordinate correction function, and determining an optimal grid width, an optimal starting point offset and a target on-screen column number according to the target function and the constraint condition. The density of information which can be borne by the same screen is improved.

The invention provides a mounting bracket and a mounting method of a spliced screen and a display device, and relates to the technical field of display. The fixing frame is provided with a first fixing part, a bearing part and a first limiting part, the bearing part is connected with the first fixing part and forms a bearing surface, and the first limiting part is connected to the bearing surface; the hanger is provided with a second fixing part, a connecting part and a first matching part, the connecting part is connected with the second fixing part, and the first matching part is connected with the connecting part. In the embodiment of the invention, when the spliced screen is in the installation completion state, the first matching part of the hanging frame is limited in the first hanging groove defined by the first limiting part, the bearing surface and the first fixing part or the installation surface, so that the spliced screen is fixed on the carrier, and the installation efficiency is conveniently improved; besides, based on locking of the multiple spliced screens, the first matching part can move in the first hooking groove, so that self-adaptive adjustment is achieved, the acting force in the direction perpendicular to the mounting face is reduced or even avoided, and the service life is prolonged conveniently.

The invention relates to a video wall, a driver circuit, a control system and a method thereof, in particular to a device for electrically driving a light-emitting diode pixel unit and a method for operating such a device.

The invention provides a television wall design method and device, and relates to the technical field of television supporting structures. The television wall comprises a pull rod, a frame and a supporting rod which are sequentially connected. The method comprises the steps that the frame size of the television wall is determined according to the television diagonal length; determining a design load according to the television weight and a preset safety coefficient; selecting a corresponding profile steel specification from a preset multi-stage bearing system according to the television size range; calculating the positions of a support rod and a pull rod, wherein the support rod and the pull rod are aligned; deformation and stress of the television wall are calculated through stress analysis, it is ensured that the deformation is smaller than preset deformation amount and the stress is smaller than preset stress, and deformation and stress calculation is carried out based on design loads and profile steel specifications through finite element simulation; and constructing a parameterized model. By establishing a multi-stage bearing system and a parameterization design process and adopting finite element simulation, deformation and stress are controlled, structural safety is guaranteed, dependence on experience is avoided, and potential safety hazards are eliminated.

The invention discloses a television wall base map display method, an electronic device and a computer readable storage medium, a television wall comprises a plurality of display devices, the method comprises the following steps: obtaining a base map to be displayed, and determining an image type of the base map to be displayed; based on the image type of the to-be-displayed base image and the distribution of the display devices, performing segmentation processing on the to-be-displayed base image to obtain a plurality of display images and determining the image type of the display images; generating a corresponding display instruction based on the image type, and issuing the display instruction to a display device to enable the display device to display the target image based on the display instruction; wherein when the image type is matched with multiple pixel values, the target image corresponds to a display image, and when the image type is matched with a single pixel value, the target image is generated by the corresponding pixel value. According to the scheme, the base drawing wall-mounting speed can be increased.

An operation method is provided for a display system displaying a physical image comprising several physical sub-images. The display system comprises a display wall having several display modules for displaying physical sub-images and a control interface having a first display region and a second display region. The operation method comprises following steps. Displaying several virtual block images on the first display region. Displaying several display module connection images on the second display region. Dragging the virtual block images from the first display region to the second display region corresponding to the display module connection images. Wherein the physical connection configuration for the display modules is arranged according to the corresponding relationship between the virtual block images and the display module connection images.