Seok, large-screen display technology

Fang Shuo big-screen technology 1.1 System Overview This system consists of a synchronization signal processing system, large-screen display system, etc., the system provides support for graphics, images, data, text and sound, and other information. Large screen display system is to enable the staff to get the final link in a variety of information, its function and effect of direct impact on the visualization of the effectiveness of information and decision-making, but also directly affect the play to the performance of the entire management system. 1.2 Design principles and finally to customer satisfaction, large screen display system design should follow the following principles: practicality system can meet a variety of real and potential demand, and achieve satisfactory results. Reliability of the system can provide continuous operation for a long time, and stable and reliable. Advanced system functionality and performance to achieve the advanced level in the same grade display system. Selection of high quality continuous projection screen and the projector, ensure that the system display the long term. Economy in meeting the needs of the case, the system construction and use input costs as small as possible. Easy adjustment of the system, the use of simple, user-friendly interface, simple operation, the use of short-term training to operate. Flexibility of the system has a flexible re-configuration capability, low dependence between the equipment may require replacement at any time without having to replace some of the equipment in accordance with other facility; existing resources without wasting any time according to changes in demand for system expansion. 2 Demand Analysis 2.1 Analysis of aggregate demand large screen display systems, ensure display offers clear, pure color, layout flexible and seamless visual images, including: all kinds of graphics, text, still and moving images; multi-screen command, control, etc; VCR, VCD, DVD, EVD and other video devices to play the image data. Audio and video systems can be used with the system, so that harmonization. 2.2 detailed needs analysis of all video and computer display screen by switching matrix or LAN dynamic display a single VGA signal spliced ??into a giant screen, support for dynamic display (2816 x 768 image to meet several sources) on the big screen will be two a VGA signal into a giant seamless display images (meet Left: 1-1024 like numbers; in: 897-1920 like numbers; Right: 1793-2816 as the number of vertical signal number like 768 AVI video file formats or. image files) 3 overall system design of large-screen display system requirements analysis, the overall design of the system first. From the projector and the audience relative to the projection screen is located on the same side of points, the projector can be divided into front and rear projection. Rear manner with respect to being cast ways less affected by ambient light, but is limited by the larger space. Different projection methods, use a different projection screen, rear projection screen with front projection screen for much higher prices in general. From the system requirements and installation site situation, considering the system's practical, advanced and economy principles, the scene using two-channel projection screen with two sets of ACTO program projectors and related equipment. 3.1 projection screen projection screen design choices directly affect the overall effect of large-screen display, the current high-end projection screen projection systems use. According to the shape generally be divided into sub-projection screen flat screen, curved screen and a spherical screen. According to the needs of your organization, we choose 3VICTOR plane seamless whole frame soft curtain 3.2 large screen display system architecture diagram of the system architecture simulation as follows: large-screen display system architecture 3.3 System schematic system mainly consists of main equipment The following equipment: projection screen 3VICTOR soft screen frame. The advanced optical technology into the process by professional Annexed into the screen, while incorporating the contrast enhancement filter layer; high-gain: 1.1 wide viewing angle, angle of 70 degrees; can show bright and clear picture surface through a special light diffusion layer processing, reduce diffuse light, so that the light emitted by the projector are effectively utilized. Projection image processing device for image input to the projector geometric correction, color calibration and edge blending. Central control device (optional) to switch matrix, image stitching processing equipment, projectors and equipment supply, centralized control and other indoor lighting. 3.4 System main index large screen display system main indicators are as follows: Projection Screen Size 6000mm (width) × 1860mm (H), the number of frame flat screen projection channel 2-way, the left and right two images projected by the projector into a seamless mosaic a whole image. Video graphics require multiple screens spliced ??into a giant screen, seamless, distortion-free images. 4 system features and functions of the projected image completely seamless, you can get a good visual effect on splicing rear wall. Projection screen after geometric correction, color correction and edge blending, can form a completely seamless whole, so that a piece of window screen layout can be freely arranged. The whole big screen precise synchronization of each channel screen switching. Multiple computer display screen can be switched in real time by switching matrix. Union computer on the network without its display screen video cable can also be projected onto a large screen. 5 major equipment selection and specification 5.1 projector to select the projector main consideration brightness, contrast, uniformity, resolution and other indicators and display technology, lens, light bulbs and other factors, but also consider supporting the stability and capacity of the equipment and systems. 5.2 projection screen projection screen to select the main considerations are the following: First, the interior space; the second is the brightness of the working environment; the third is the perspective of requirements; fourth is projection requirements; Fifth mobility requirements; Sixth, cost-effective. 5.3 projection image processing apparatus (multi-channel fusion machine) image signal If multi-screen card after a direct projection-screen computer, there may be two problems: First, as a multi-screen approach to each projector projection screen color and brightness is difficult tune into the agreement, which may arise projected image color and brightness of each screen, there are differences of each other, the impact on the overall effect of projection; the second is the seam between each screen is difficult to completely eliminate, with a clear dividing line. To solve this problem, you must increase the projected image processing apparatus before the projector, the image projected on the required signal color correction and edge blending. Image mosaic processing equipment to choose our products 3VICTOR multi-channel image correction fusion machine. Edge Blending applications from the command and control, visual simulation, stereoscopic theater system. Adapt to people's pursuit of beautiful large screen, pure color, high-resolution display that demand arising, it increases the screen, increase the brightness, resolution, and so has a very distinct advantage. Edge fusion technology is a set of projector screen projected edge overlap, and through the integration of technology exhibits a no gap, more bright, large, high-resolution whole picture, the screen effect is like a projector projection quality. When two or more projectors projecting a combination of both sides, there will be a part of the image light overlap, the most important feature is the lighting edge blending two projectors overlapping portions were gradual adjustments to the contrast and brightness of the overlapping area surrounding image aligned so that the entire sub-picture complete unity, did not see is the result of multiple projectors stitching. Edge Blending large screen display system can display detailed and accurate picture of each fine and small, the entire system to show up is seamless whole picture, whether it is physical or optical patchwork patchwork, would not exist, the audience shocked visual impact and enjoyment, so that all data is perfect reproduction! Edge fusion technology initially applied to military simulation systems, with the continuous development of technology, declining costs, edge blending large-screen system has been gradually into the allegations of the monitoring center, Theme Pavilions, simulation games and other large-screen display system edge Fusion Technology has gone through three stages: the hard edge stitching, overlapped stitching and edge fusion splicing. Hard edge stitching, also known as simple stitching that edge two projectors are aligned, without any additional processing. Performance on display for the screen there is a seam or stitching at the ghost. Simple overlap, namely two projector screen has some overlap, but not as light into the fade-out process, and therefore the brightness of the overlapping portion is 2 times the rest of the whole, the performance of the overlapped portion is a light bar on the display. Edge Blending, compared with the simple overlap, the overlapping portion of the luminance linear attenuation and increase, respectively, showing exactly the same as the total picture brightness on the display. 3.2 The overall design based on technical analysis and many years of project experience, we recommend using 2-channel front projection plane projection display system, the core device using a multi-channel image correction fusion machine, multi-channel projection image pixel-perfect geometric correction, automatic color correction, no It marks the edge of fusion integrated process, building a seamless unified, uniform color, high-resolution overall picture, the perfect realization of application of large screens. The system includes snowhite-2002 digital image correction fusion machines, graphics controller, projection screen, projector, all kinds of video sources, and related auxiliary parts and other components. 3.3 System Features 3.3.1 System Function processed and output multiple image signals to form a seamless, continuous, uniform brightness and consistent color perfect big screen. With a DVI-I port, compatible with DVI-D and VGA signal, supports a variety of graphics workstations and projectors. Geometric correction accuracy of 0.1 pixels, keeping projection screen without distortion. You can be fast and convenient channel for different brightness projection screen color correction, brightness ensure uniform, consistent color. Multi-channel image edge fusion processing, support the flat edge of the curtain, curtain rings, ball screen, the second song and other song curtain curtain integration, support XGA 1024 × 768, SXGA 1280 × 1024,1400x1050 image resolution. Multi-screen graphical control technology, multi-channel video, computer display, network remote desktop can be any size, the location of windows displayed on the big screen, you can arbitrarily move across the screen, superimposed. You can quickly switch multiple sets of image window display program to a single-screen, multi-screen, full-screen, across a variety of ways to control the screen display multiple image signal. Through the network remote control and debugging. Geometric correction accuracy of 0.1 pixels, no mold burnt dislocation for different screen shapes. Support fast automatic calibration and Alpha / Gamma precise manual correction, without correcting environmental constraints. Color distortion <2% were unable to distinguish between the naked eye. Fusion science advanced, easy to operate, perfect results. 24 true color display, image processing frames up to 60FPS. Each channel precise synchronization, <1. The entire system is compatible and reliable equipment, can provide continuous and stable operation for a long time. Easy maintenance, flexible operation, several sets of programs are free to switch. Technical indicators: industrial host motherboard chipset Intel Pentium4 CPU Pentium4 processor 512M DDR memory, hard disk 80GB ATA100 AGP graphics display controller Dimensions 19 inches 4U (177mm × 483mm × 452mm) handle the number of cards can be mounted from 2 to 5 image processing card processing the number of channels can handle two to five channels of image I / O interfaces VGA monitor connector; PS / keyboard / mouse interface; USB interfaces; RS232 serial interface; network interface RJ45 interfaces (10M / 100M adaptive) Operating temperature 0 to 55 ℃ Power Configuration 300W AC-DC ATX power supply requirements 180 ~ 260VAC, 50Hz image processing card image resolution XGA (1024 × 768); SXGA (1280 × 1024) image color quality 24-bit color image frame rate 30fps above image input interface DVI -I (25 + 4Pin) DVI Ver1.0 Compatible Interface image output interface DVI-I (25 + 4Pin) DVI Ver1.0 Compatible Interface consumes less than 20 watts / Zhang DVI signal DVI Ver1.0 standard differential signals VGA signal Red / Green / Blue Signal (75 ohm, 0.7 V pp) Operating System Microsoft Windows 2000 Professional control software remote or local control, window interface, can easily adjust, save the configuration seok's official website: http: //www.gxshuofang.com seok HC: http: //shuofang168.b2b.hc360.com seok, Alibaba: http: //shop1354775007798.cn.alibaba.com Contact: Mr. Li Tel: 18978941677,15977720529 QQ: 1919577992,508332336