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Immersive full-view LED dome screen display and control system

A control system and full-view technology, applied in the field of immersive full-view LED dome display and control systems, can solve the problems of small projector field of view, difficult maintenance, out-of-sync video signals, etc., to ensure smooth and Synchronization, ensuring synchronization, and simplifying the effect of image processing difficulty

Inactive Publication Date: 2020-01-17
CHENGDU CHENGDIAN GUANGXIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve many problems such as the small field of view of the projector, low contrast, short life, high price, difficult maintenance, and the inability to fully realize localization, the LED visual dome display solution was proposed, which has a high refresh rate and high-definition High degree, large field of view, long life, easy maintenance, easy transportation and installation, and low cost, so the use of LED as a visual dome display system has great research significance
[0004] Traditional immersive dome displays all use projection display technology. Multiple projectors use image splicing and fusion to realize the dome display function. On the one hand, it is difficult to achieve full-field display in this way, especially in real image display systems. , because once an observer or an object is inside the system, it will block part of the display area; on the other hand, in addition to image geometric correction, this display method also needs image stitching and image fusion, due to the large stitching and fusion area , the actual pixel utilization of each projector is very small
[0005] At present, the applications in the LED spherical field mainly include: LED outer spherical display, LED dome display and LED hemispherical display, etc., and these applications are mainly concentrated in commercial advertisements and exhibitions in science and technology museums. Since this type of display system does not have hardware graphics real-time correction equipment , the video source it plays needs to be customized according to the spherical shape, which greatly limits the flexibility of the displayed content
In addition, in the current LED spherical display technology, there is a problem that the video signal is not synchronized, which affects the fluency and synchronization of the entire display screen of the display terminal. This problem needs to be solved urgently

Method used

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  • Immersive full-view LED dome screen display and control system
  • Immersive full-view LED dome screen display and control system
  • Immersive full-view LED dome screen display and control system

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Such as figure 1 As shown, an immersive full-view LED dome display and control system includes a video processing control system and a dome display terminal. The data output end of the video processing control system is connected to the data input end of the dome display terminal, where the video processing The control system includes a video splicer 2, a graphic corrector 3 and a video transmitter 4. The video splicer 2 receives the multi-channel video images output by the host computer, and divides each video image into multiple sub-images. The graphic corrector 3 converts the video Each sub-image divided by the splicer 2 is converted into a curved image, and the gap and distortion of the connecting part between the curved images are corrected, and the video sender 4 sends the video image processed by the video splicer 2 and the graphic corrector 3 to the dome screen Display terminal. The dome display terminal includes several video receiving cards 5 and correspondin...

Embodiment 2

[0051] This embodiment is on the basis of embodiment 1:

[0052] The display module 6, that is, the LED light board, such as Figure 18 As shown, there are protruding and hollow copper pillars 61 around the back, and threaded magnetic bolts 62 are screwed into the copper pillars 61. On the front of the LED lamp board are LED lamp beads 63, which are arranged on the plate on the substrate 64. The LED light board is adjustable and magnetically connected to the structural layer of the dome screen through the magnetic bolt 62 and the copper pillar 61. By adjusting the depth of the magnetic bolt 62 screwed into the copper pillar, the height of the LED light board can be adjusted to facilitate the splicing of the LED light board , to ensure the flatness of the entire spherical surface of the LED light board after splicing. The structural layer of the LED light board and the dome screen is magnetically connected, which facilitates the installation and disassembly of the LED light b...

Embodiment 3

[0055] This embodiment is on the basis of embodiment 1:

[0056] In order to improve the immersive panoramic LED dome display and control system provided in Embodiment 1, this embodiment also adds:

[0057] Power management equipment, used to provide power management for video splicer 2, graphic corrector 3 and video transmitter 4, and installed in the cabinet together with these devices to realize one-button power on and off, overvoltage and overload of video processing and transmission system and short circuit protection.

[0058] Distributed switching power supply converts 220V AC signal into 5V DC voltage signal, and transmits power supply to LED light board and video receiving card 5 through bus bar, and protects against overload, overvoltage and over temperature at the same time, its distributed layout At the bottom of the dome to reduce the bearing pressure of the entire dome structure and realize the light weight of the dome structure.

[0059] For busbars and cables...

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Abstract

The invention discloses an immersion type full-view LED dome screen display and control system. The system comprises a video processing control system and a dome screen display terminal. The data output end of the video processing control system is connected with the data input end of the dome screen display terminal; the video processing control system comprises a video splicer, a graph correctorand a video transmitter. The video splicer receives a plurality of paths of video images output by the upper computer; wherein the video splicer is used for splicing a plurality of paths of video images and segmenting each path of video image into a plurality of sub-images, the graphic corrector is used for converting each sub-image segmented by the video splicer into a curved surface image and correcting gaps and distortion of joint parts of the curved surface images, and the video sender is used for sending the video images processed by the video splicer and the graphic corrector to the dome screen display terminal. According to the invention, all signals are processed in parallel in real time, and the output signals also ensure the synchronism, so that the smoothness and synchronism ofthe whole display picture of the dome screen display terminal are ensured.

Description

technical field [0001] The invention relates to the technical field of dome screen display, in particular to an immersive full-view LED dome screen display and control system. Background technique [0002] At present, the demand for analog simulators in the market is increasing, and the requirements for the performance of its visual display system are also getting higher and higher, especially for display clarity, viewing angle and sensory experience. Higher requirements, a large The display system with size, wide viewing angle, high resolution, strong sense of immersion and realism can bring twice the result with half the effort to military simulation training. [0003] In order to solve many problems such as the small field of view of the projector, low contrast, short life, high price, difficult maintenance, and the inability to fully realize localization, the LED visual dome display solution was proposed, which has a high refresh rate and high-definition High degree, la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/302G09F9/33G09G3/32
CPCG09F9/3026G09F9/33G09G3/32H04N5/04H04N5/262H04N5/265
Inventor 解军王继岷贺卫东曾一雄王万勤
Owner CHENGDU CHENGDIAN GUANGXIN TECH
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