LED display screen strengthens industry cooperation to break through technical bottleneck

Not only the innovation of LED display screen technology will continue to improve the growth rate of LED display screen, LED display screen manufacturers can take this opportunity to break the development dilemma of LED display screen industry. According to survey statistics, the output value of China's LED display industry reached 21. 9 billion yuan in 2011, up 2012 year on year. It is estimated that- China's LED display industry will remain 15-2015-The growth rate of 20. In recent years, the LED rental display market is very popular, driving the entire LED display industry into a high-speed growth stage. In addition to advertising screens, performing arts screens, traffic guidance screens, etc. , which are widely used outdoors, indoor LED display screens are also a market with great potential, including indoor monitoring large screens and indoor electronic curtain walls. However, from a technical point of view, in fact, in the past 10 years or so, the LED screens introduced by most manufacturers have not changed much in the basic system architecture, only some technical indicators are improved and corrected to a certain extent. At the same time, the popularization and promotion of high-performance products are also relatively lagging behind, although PWM (Pulse width modulation) The functional display screen drives IC products to be introduced, and market participants have also agreed that PWM function has the advantages of high refresh rate, constant current and the like, but due to price and other factors, so far, the market share of this kind of high-performance display driver IC is still not high, and the most widely used ones in the market are mostly basic ones (Such as accumulation 5024/26, etc) The products are mainly used in some LED screen rental markets that pay more attention to quality. However, with the rapid development of the LED display market at present, more and more users begin to put forward a series of complicated requirements for LED screens, such as visual effect, transmission mode, display mode, and playing mode. this also makes LED screen products face a brand-new opportunity for technological innovation, and the brain LED driver IC, as the overall display screen system, will play a crucial role. Strengthening industry cooperation and breaking through technical bottleneck data transmission between LED screen and main board generally adopts serial data transmission mode (SPI) , And then through the signal packet multiplexing technology to synchronously transmit display data and control data, but in the case of improved refresh rate and resolution, it is easy to cause the bottleneck of data transmission, resulting in system instability. In addition, when the LED screen area is large, the control line is often very long, which is vulnerable to electromagnetic interference and affects the quality of transmission signals. Although some manufacturers have introduced new transmission media in recent years, how to provide users with truly excellent performance and cost-effective product solutions is a key issue that plagues the industry. For this reason, some manufacturers have proposed that the data transmission mode of LED display screen needs to start from the underlying technical level to find an innovative solution. It is worth noting that the technological innovation of LED screen has involved all aspects of the industrial chain, including the improvement of the manufacturing process of the driver IC, the hardware of the control system, the intelligent development of the control software, etc, these technological innovations require IC design manufacturers, control system developers, panel manufacturers, and more closely combined than end users to jointly break the deadlock in industrial applications. Especially in the development of control system, how to cooperate with IC design company better, improve the system performance of LED screen and the intelligence level of control software is the top priority.