Data shift clock: its decision to the data transmission speed of indoor led display screen is the key indicators of the impact of the display update rate. As a large-size display full color led display, display refresh rate should be 85Hz or more, to ensure the stability of the screen (no scanning light flashes). Higher display data shift clock is the basis for obtaining a high screen refresh rate. Mainstream constant current source driver IC shift clock frequency are generally in the 15MHz ~ 25MHz or more. Although the color gray, decided several factors led display manufacturers, but it does not mean unlimited bigger the better. Because the first resolution of the human eye is limited, furthermore system processing median increase will involve a change in the system of video processing, storage, transmission, scanning all aspects of the cost increase, the price decreased. In general civil or commercial-grade products can be used 8 system, broadcast products can be used 10 systems. led display price 金锐光 electricity (online consultation), led display much security is provided by the Yichang Technology Co. 金锐光. Yichang Jinrui Guang Technology Co., Ltd. (www.ycjrgd.com/) Hubei Yichang, Electronics & Electrical Project Cooperation leaders, 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 electric leadership with the staff warmly welcome all inquiries negotiations to create a better future Jinrui Guang electricity.