rs232 cable,rs232 to usb,rs232 driver Dongguan Bofan technology Co., LTD , https://www.pengliandz.com Topic: Application Mitsubishi has introduced a new expandable OLED display designed for outdoor applications. The upgradeable prototype has become the focus at CEATEC and can grow indefinitely. Looking at the panel from a distance, it is a combination of many small OLED panels. The more panels you add, the bigger the screen. Although the resolution is still relatively low, it can stand far and look, and the effect is amazing. The screen displayed at the exhibition has a 155-inch university. 