31 results about "Video wall" patented technology

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 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 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 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 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 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 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 present disclosure relates to an image display device and a video wall having same. An image display device according to one embodiment of the present disclosure comprises: a first light-emitting diode that emits light of a first color; a second light-emitting diode that emits light of a second color; a third light-emitting diode that emits light of a third color; a first switching element connected to an anode of the first light-emitting diode; a second switching element connected to an anode of the second light-emitting diode; a third switching element connected to an anode of the third light-emitting diode; a scan switching element connected to cathodes of the first to third light-emitting diodes; and a driving controller that outputs a scan signal to the scan switching element for each of a plurality of sub-frame periods and outputs a pulse-width-variable-based data signal to the first to third switching elements, wherein the driving controller outputs a first data signal of a first level to the first switching element, outputs a second data signal of a second level, which is greater than the first level, to the second switching element, and outputs a third data signal of a third level, which is less than the first level and greater than half of the first level, to the third switching element. Accordingly, the color expressivity of the light-emitting diodes may be enhanced.

The invention discloses a display control device and method and a chip, and belongs to the technical field of display. The device is applied to a first display device, the first display device is one of a plurality of display devices in a spliced screen, and the device comprises an acquisition module used for acquiring a data packet based on a directed transmission path among the plurality of display devices, the data packet comprises data and at least one device identifier, and each device identifier is used for identifying one display device; the processing module is used for intercepting a data slice matched with the first display equipment from the data packet according to the equipment identifier; and the transmission module is used for sending the data packet to a second display device, and the second display device is the next display device of the first display device in the directed transmission path. When data is input into the display device of the spliced screen or firmware is burnt, the communication interface does not need to be plugged and unplugged for many times, and operation is convenient and fast.

The invention discloses a spliced screen control system and method, a display device and a computer readable storage medium. According to the embodiment of the invention, the spliced screen control system comprises a plurality of display screen control modules, and each display screen control module comprises a video input interface used for inputting a video signal; the video copying unit is used for receiving the video signals and copying the video signals to obtain multiple paths of output video signals; the video processing unit receives one path of output video signal; the video processing unit is used for processing the received output video signal so as to drive a corresponding display screen; and the at least one video output interface is used for receiving one path of output video signal and sending the received output video signal to the other display screen control module. According to the spliced screen control system and method, the display device and the computer readable storage medium, wiring of the spliced screen can be simplified.

A method and apparatus for generating a video wall, a storage medium, and a display system are disclosed. The method includes: acquiring identifiers of multiple video walls connected to a video wall processor; designating each video wall as a target video wall, and sending a reset command to each target video wall, the reset command carrying the identifier of the target video wall; determining the output port where extended display identification data negotiation occurs, and establishing a correspondence between the output port and the target video wall; and generating a video wall composed of images output from the multiple output ports according to the correspondence, wherein the position of the image output from the output port on the video wall corresponds to the position of the corresponding video wall in the video wall matrix. This embodiment provides a solution that, by resetting the video walls and determining the correspondence between the video walls and the output ports, generates a video wall, enabling automatic video wall generation and improving efficiency and accuracy.

The technical problem of the present invention is to provide an adhesive sheet, a unit panel, and a splicing display with good laser cutting processability. The adhesive sheet (1A) is an adhesive sheet (1A) used to manufacture a unit panel (2A) constituting a splicing display. It has a first adhesive layer (12), a second adhesive layer (13), and a core material (14) disposed between the first adhesive layer (12) and the second adhesive layer (13). When a pressure of 10 kPa is applied to the adhesive laminate (11) composed of the first adhesive layer (12), the core material (14), and the second adhesive layer (13) at a temperature of 23°C and a frequency of 1 Hz for 600 seconds using the torsion shearing method according to JIS K7244-6, the strain is less than 120%.

This invention relates to the field of cross-screen display technology, and more particularly to a brightness-adaptive cross-screen display method applied to a video wall display, comprising: step S1, a central control module determining whether the stability of the video image is within an allowable range; step S2, the central control module adjusting the refresh rate of the video wall display, or making a preliminary determination of the smoothness of the video image, or making a preliminary determination of the integrity of the video image; step S3, the central control module adjusting the frequency of garbage collection in the running memory based on the difference in playback duration of the video image; step S4, the central control module making a preliminary adjustment of the actual magnification of the image based on the missing area of ​​the video image; step S5, the central control module making a secondary adjustment of the actual magnification of the image based on the overlapping area of ​​the images; this invention achieves improved stability of video display and improved display quality of video images on the video wall display.

A pre-monitoring echo display method, apparatus and system, and a video wall processor and a storage medium. The method comprises: determining at least one reference scaling processing resource of an input board in a video wall processor, wherein the reference scaling processing resource is a scaling processing resource that is allocated from a plurality of image scaling processing resources associated with the input board and is used for supporting the execution of a pre-monitoring echo function (S110); alternately arranging target image frames respectively corresponding to a target number of image input channels in the input board, and then transmitting the target image frames to the reference scaling processing resource for sequential processing (S120); and sending, to a pre-monitoring echo board in the video wall processor, pre-monitoring images processed and outputted by the reference scaling processing resource in the input board, such that the pre-monitoring echo board performs a pre-monitoring echo on the pre-monitoring images (S130).

This utility model relates to the field of monitoring display technology, and in particular to a liquid crystal splicing display screen for security monitoring. It includes an outer frame, with a rear shell fixedly mounted on one side of the outer frame by bolts. Multiple sets of side holes are formed through the outer wall of the outer frame, used for positioning and assembling between the multiple sets of outer frames. One end of the rear shell is open, and a movable shell is rotatably connected to the opening of the rear shell via a hinge. An electrical box is fixedly mounted on the outer end face of the rear shell by screws. This liquid crystal splicing display screen for security monitoring solves the shortcomings of existing technologies where the shell lacks a splicing structure.

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 data signal to the plurality of light emitting diodes and outputs a scan signal for each of a plurality of sub-frame periods, in the first mode, the drive control unit sequentially outputs a first scan signal to only a portion of the scan lines during a portion of the plurality of subframe periods, and sequentially outputs a second scan signal to only another portion of the scan lines during another portion of the plurality of subframe periods. As a result, it is possible to prevent decline in image quality while reducing flicker.

A mounting bracket and installation method for a video wall display, and a display device, relating to the field of display technology, the mounting bracket (10) includes: a fixing frame (11) having a first fixing part (111), a bearing part (112) and a first limiting part (113), the bearing part (112) being connected to the first fixing part (111) and forming a bearing surface (1121), the first limiting part (113) being connected to the bearing surface (1121); and a hanging bracket (12) having a second fixing part (121), a connecting part (122) and a first mating part (123), the connecting part (122) being connected to the second fixing part (121), the first mating part (123) being connected to the second fixing part (121), and the first mating part (123) being connected to the second fixing part (121). When the splicing screen (20) is installed, the first mating part (123) of the bracket (12) is limited in the first hanging groove (114) formed by the first limiting part (113), the bearing surface (1121), and the first fixing part (111) or the mounting surface (31), thereby fixing the splicing screen (20) on the carrier (30) and improving installation efficiency. In addition, based on the locking of multiple splicing screens (20), the first mating part (123) can move in the first hanging groove (114) to achieve adaptive adjustment, reduce or even avoid the force along the vertical mounting surface direction, and extend the service life.

The invention discloses an efficient control method and system for a special-shaped display wall, and the method comprises the steps: building a first coordinate system, designing and constructing a special-shaped layout diagram, building a second coordinate system in a WEB of a control terminal, and carrying out the zooming-out of a plurality of logic displays according to a preset proportion, and calculating a logic display area corresponding to each logic display according to the hardware pixel density and the third physical size. The method comprises the steps that a logic displayer is arranged on a hardware special-shaped display wall, a rotation matrix is used for conducting rotation layout on the logic displayer, a final logic special-shaped display wall is obtained, an image of the final logic special-shaped display wall is rendered and mapped to a hardware displayer corresponding to the hardware special-shaped display wall, a design drawing serves as a layout reference, and any polygonal / non-rectangular units and any arrangement are supported. The method is suitable for different resolutions and display sizes, can output splicing configuration which can be recognized by equipment, and solves the problem that the control of a special-shaped video wall needs complex configuration and manual intervention operation and cannot meet the individual requirements of users.