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Talking about the necessity of intelligent LED electronic display in all aspects

May 17, 2021

In recent years, the LED electronic display market has been very popular, driving the entire LED display industry into a stage of rapid growth. In addition to advertising screens, performing arts screens, and traffic guidance screens that are widely used outdoors, indoor LED displays are also a market with huge potential, including large indoor surveillance screens and indoor electronic curtain walls. But 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, but have been improved to a certain degree in accordance with certain technical indicators. And correction.

At the same time, the popularization and promotion of high-performance products is relatively lagging, although as early as a few years ago, there were already display driver IC products with PWM (Pulse Width Modulation) function on the market, and market participants have also agreed with the PWM function. It has the advantages of high refresh rate and constant current. However, due to price and other factors, the market share of such high-performance display driver ICs is still not high. The basic models are mostly used in the market (such as Macroblock 5024/ 26 etc.), high-end products are mainly used in some LED screen rental markets that pay more attention to quality.

However, with the rapid development of the Shenzhen LED display market, more and more users have begun to put forward a series of complex requirements for LED screens from visual effects, transmission methods, display methods, and playback methods. This also makes LED Screen products are facing a new opportunity for technological innovation, and as the “brain” of the overall display system-LED driver IC will play a crucial role.

The data transmission between the LED screen and the motherboard generally adopts serial data transmission (SPI), and then synchronously transmits display data and control data through signal packet multiplexing technology, but when the refresh rate and resolution are improved , It is easy to cause a bottleneck in data transmission, leading to system instability. In addition, when the screen area of the LED screen is large, the control line is often very long, which is susceptible to electromagnetic interference, which affects the quality of the transmission signal.

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. To this end, some manufacturers haveproposed that the data transmission method of LED display screens urgently needs to start from the lowest technical level and find an innovative solution.

It is worth noting that the technological innovation of LED screens has involved all aspects of the industrial chain, including the improvement of driver IC production process, the hardware of control system, the intelligent development of control software, etc. These technological innovations require IC design manufacturers, control System developers, panel manufacturers, and even end users are more closely integrated to break the “deadlock” of industry applications. Especially in the development of control systems, how to better cooperate with IC design companies to improve the system performance of LED screens and the intelligent level of control software is a top priority.

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