People in our professional industry all know that the two-color screen is mainly used to display text, and single-chip scanning is relatively convenient. Due to the rapid increase in the number of LED, in order to save some resources, Lianchengfa adopts more 74H shift scanning. In order to be more suitable for the application of LED, one function of constant current setting is integrated on the original basis, and lianchefa adds more current driving ability, so as to better meet the needs and cost requirements and package 16-bit devices. At present, lianchefa's full color screen is also widely adopted by the majority of users.

　　Due to the continuous decline of current driving ability, the early single-channel current driving ability, and later current driving ability have declined a little. Currently, it is basically driven by 45mA current, such as MBI50 and CYT627. The main reason for the reduction of current driving ability is that the luminous intensity of LED devices is getting higher and higher. Therefore, in order to improve the image quality, Lian Chengfa began to design more and more static screens, but the demand for current driving ability is reduced. From the point of view of IC cost, chip size can be reduced, so as to achieve the effect of reducing cost.

　　At present China has accounted for 80% of global purchasing LED display products, normal channel constant current devices design is widely accepted, this phenomenon will continue to continue in the short term, a conservative estimate the next three to five years will not disappear, the main supporting is a mature control technology, because the product has been more series, unless the system control technology and chip driver design has a huge leap, Further cost reduction, otherwise the status quo will not be so easy to change. In recent years, many companies in the same industry continue to launch new structures, but have not been recognized by the market. The biggest root cause is to change the color consistency of leds through control techniques, if better.

　　So far, there are still many technical deficiencies in LED display in China. In recent years, the government has given strong support to LED enterprises, which makes many LED display manufacturers actively invest in technology research and development. At present, each LED display manufacturer has applied for its own patent research and development. The application of some LED chips in the market in China shows that the technology in the LED industry in China is gradually improving.