From August 31st to September 3rd, the 17th China International Optoelectronic Expo was grandly opened in Shenzhen Convention and Exhibition Center. As the world's largest professional optoelectronics exhibition with the most complete industrial chain, China Optical Expo has been committed to promoting the healthy development of the industry and promoting in-depth exchanges between the optoelectronic industries at home and abroad. It has become the industry's recognized indicator of the optoelectronics industry. At this exhibition, Shenzhen Lianchengfa Technology Co., Ltd., as an invited exhibitor, brought high-quality products such as the P3 HD LED rental display widely recognized by customers in recent years and the main stadium screen to appear.