LED display is the core component of LED display control system, its main function is to accept from a computer serial port or DVI interface and video information, placing frame memory, showing the picture. It mainly include the synchronous and asynchronous control system control system, including asynchronous control system is also known as offline or offline card control system, the main function is to display a variety of graphics, animation, words or symbols, etc. So now, the asynchronous control system development situation how?
At present, the asynchronous control card from the scale, and no compare synchronous control card, but the asynchronous control card has its own characteristics, such as application more widely. Synchronous control card is limited by own some, need to have a room to control, as a result, it cannot be large-scale application in many fields, such as in many outdoor place for unattended, synchronous control card with no, but can the asynchronous control card. The asynchronous control card application is wider, so it's a bigger development space. Second, the asynchronous control card development up to now, has more than ten years. Security and reliability of early, it is a problem for the prominent, but after so many years of development, for a lot of the asynchronous control card manufacturers, this is not the core of a problem.
Single and double color asynchronous control system has been developed for nearly 20 years ago, all aspects of performance has been very mature; Full-color asynchronous control system from 2012 began to applications in the screen door head and on the screen, the current is still in the early stage of development, with embedded processor performance is more and more strong, the embedded will be the trend in the future, may replace or merge with synchronous control system, the birth of a new control system.
Currently, full-color asynchronous control system performance to meet the market demand, because didn't get the use of large quantities of system more complex reasons, such as asynchronous control system reliability compared with the single and double color, full-color synchronous control system to close.
With continuous development of led display industry, more and more applied to small and medium-sized screen media display, traffic induced chain, commercial display, door head sign, etc. Asynchronous control system due to its embeddable, high stability, the characteristics of miniaturization, mobility strong popular industry user's favorite, is also an integral part of led display to integration, intelligent products, from the performance perspective, from simple text, the 480 p to 480 p video playback is the inevitable trend of the asynchronous system. Cooperate with cluster distribution, release, interactive software, asynchronous control system to display to become smarter. Because of asynchronous control screen unattended for asynchronous systems, the stability is the key factor. To sum up, intelligent, strong performance, high stability, is the future of the asynchronous system.
In conclusion, we can understand that with the development of LED display, control system and then make a new change, although the size of the asynchronous control system is not as good as synchronous control system, but because of its own characteristics, stability and reliability is not the most outstanding problem, embedded, intelligent and integrated or while its development trend.
