Synchronization mode refers to the LED display works basically the same as the computer monitor, it is to update the rate of at least 30 fields / sec bit map corresponding to FIG real time computer image on a monitor, typically having a multi-gradation color display Wuhan led display design ability, can achieve the effect of multimedia advertising. Asynchronous mode refers LED screen has the ability to store and play automatically led display, edited on a PC without the gray text and pictures via the serial port or other network interface incoming LED screen, then led by Wuhan Autoplay LED screen offline display production, generally do not have the ability to multi-grayscale display, mainly used to display text information, you can multi-screen network. Common drive way to have constant drive and constant current driver, constant voltage drive is a constant voltage input to drive, light up the screen. This approach is rare. Constant current driver is provided with a constant current driver, lit. big screen. Commonly 1 / 8,1 / 4,1 / 16 scan mode. These so-called scanning mode means that several similar lamp with the same color of a driver chip for driving control. Of course, the more the brightness driver chip, the higher the refresh rate, then the cost is higher. 1/8 is generally a good choice. Wuhan led display design, 金锐光 electricity (certified), led by the Yichang 金锐光 display Power Technology Limited. Yichang Jinrui Guang Technology Co., Ltd. (www.ycjrgd.com/) Hubei Yichang, electronic, electrical project co-leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . In Jinrui Guang power leadership with the staff warmly welcome all inquiries negotiations to create a better future Jinrui Guang electricity.