Digital and Electronic Device Design GKGD Smart Screen by Shanxi High-tech Huajie Optoelectronic Technology Co., Ltd GKGD is a 136-inch interactive display designed for government, education, healthcare and retail settings. The unit combines an LED screen, a sound system and touch control in one body. The body is 22 mm thin and made of aerospace grade aluminum alloy with brushed and powder coated metal surfaces. A metal stand supports the screen and makes installation and removal simple. Eight microphones capture voice within a radius of six meters. The screen can be divided into four sections, so several meetings can be handled at the same time.