Commercially available VR headsets typically use displays from the smartphone market or LCD- and LCOS-based microdisplays. Their drawback is limited resolution and insufficient pixel density. OLED microdisplays offer an alternative here that is energy-efficient and delivers high contrast ratios of > 100,000:1. Fraunhofer IPMS has many years of extensive expertise in the development and manufacture smooth. of custom-fit OLED microdisplays for a wide variety of applications. Building on this expertise, Fraunhofer IPMS has developed a microdisplay with very high pixel density and resolution, as well as minimal dimensions, based on 28 nm CMOS technology. A completely new backplane concept was designed for this purpose. The backplane is compatible with other technologies such as µLED and LCOS. These technologies focus on applications in both virtual and augmented reality. With their new specifications, these microdisplays are ideally suited for ergonomic AR and VR head-mounted displays (HMDs), as their small size enables more compact systems. They have a screen diagonal of 0.18 inches, a resolution of 1440 x 1080 pixels, and a pixel density of 10,000 ppi (pixel pitch 2.52 µm, monochrome). The refresh rate of up to 480 Hz also helps minimize motion sickness, which often occurs with VR headsets. As a result, movements in the virtual world appear very smooth. Furthermore, a global brightness setting can be adjusted, and additional data conversions can be enabled to support various front-plane technologies (OLED, µLED, LCOS).
