This document describes an LED poster display system with the following key features: it is extra slim and light for easy transport, uses a plug-and-play system for quick setup by one person, and allows easy programming and control of content. Additional features include front-access modules for quick exchange, wall or floor standing installation, a special patented cableless connection technology, and support for USB, SD card, WiFi, and HDMI input/output. It also has offline and online connection capabilities and an Android operating system for future app design.