LED Large Screen
The competition hall of the comprehensive gymnasium is 500-1000Hz full according to the grade and volume.
Reverberation time index and the ratio of reverberation time of each frequency to 500-1000Hz reverberation time
LED multimedia color electronic display system as a set of engineering, systematic high-tech products, it includes display, interface, computer and peripheral equipment, a variety of signal acquisition means and improve the software environment and other parts.
Such as database technology, network communication technology, network interconnection technology, information automation processing technology, interface technology, multimedia technology. Internet technology can be connected to future network systems, including local area networks and wide area networks. E1 special line, CDPD technology, network interconnection technology and simulcast technology can be adopted. Through the Internet, access to the company's website, you can download the display control software, easy to achieve software upgrades, and can be online real-time answer users to use the problem.

Technical advantages
01
256 gray level
Gray-scale technology is the key technology of full-color screen. Due to the limitation of devices and design principles, many domestic LED manufacturers often use visual differences to disguise 64-level gray scale as 256-level gray scale. Using large-scale integrated circuits, a mature 256-level gray-scale technology was developed and used in a three-primary color full-color display system, so that the full-color display screen can display more than 16.77 million colors on the same screen.
02
nonuniformity correction technique
At present, LED manufacturers that can produce 256 levels of gray scale mostly adopt equal interval brightening technology on 256 gray scales of the same primary color, that is, each gray scale is divided equally according to linear law. This simple brightness grading technology will cause the picture fuzzy, poor layering, not thorough. After carefully analyzing the visual characteristics of human eyes, Guangtong Company proposes and has the non-uniformity correction technology caused by LED dispersion. This technology in the low brightness area level difference is small, gray class intensive, gradually to the high brightness area level difference increases, gray level series decreased, resulting in the effect of "level difference consistency". This nonlinear 256 level gray scale is actually processed in accordance with the 4096 level gray scale to 256 level gray scale.
03
video multimedia technology
The company has organically combined LED display technology and multimedia technology to achieve distortion-free playback of video programs and live TV broadcasts on the LED display. At present, the frame change rate of many domestic manufacturers can only reach 30 frames per second. When playing film and television programs, due to insufficient frame change rate, the method of drawing frames must be adopted, so that the image lacks continuity (similar to animation effect), resulting in speed-related "flicker" phenomenon, dazzling and dazzling picture. Especially when playing TV or movies, the visual effect is not good. The light-through display adopts the light-through real-time capture technology, and the frame change rate realizes automatic synchronization with the monitor, and the speed is greater than 100 frames/second. After the frame rate is improved, the above shortcomings are completely eliminated, and the frame rate requirement of playing video programs in real time is achieved.
04
Powerful Technology Development Center
In order to establish the company's technical position in the LED industry and accelerate the upgrading of LED products, our company has established its own wholly-owned product research and development center-Display New Technology Development Department, which specializes in the development of LED products.
05
Rich experience in large-scale engineering construction
Company since its inception, by its construction of the size of the project a total of more than 8000. In the construction process of these projects, a number of rich management organization personnel, technical designers and engineering installation personnel have been trained. The experience accumulated in numerous successful cases, so that we have enough ability to meet all your requirements.
Keywords: LED, screen
Engineering renderings