Fraunhofer FEP announced that they would show bidirectional AR / VR head mounted display devices based on OLED microdisplay at AWE Europe 2017 from October 19-20. According to Fraunhofer FEP, OLED microdisplay supports SVGA (800 x 600) resolution and can display augmented reality and virtual reality of 2D and 3D content via USB interface and HDMI connection. In addition, it is known that it is possible to use an eye tracking system that uses a photodiode to detect a user’s gaze.