High-luminance, Large-Size 4K OLED Microdisplays for VR/MR Applications

This work introduces LG Display's (LGD's) 1.3 '' 4K full-color organic light-emitting diode (OLED) microdisplay panels with a peak brightness of more than 10,000 nits, which have been newly developed for high-quality virtual reality/mixed reality (VR/MR) head-mounted displays. To achieve these advanced high-luminance OLED microdisplay panels, we have developed a well-controlled optical microcavity and outcoupling method, along with optimized multi-stack white OLED devices and CF-on-encapsulation technologies tailored to the high pixel density of the panels. The world's best 1.3 '' 4K full-color OLED microdisplay, which is able to realize peak brightness more than 10,000 nits together with appropriate operational lifetime of OLED devices, is introduced by addressing key technologies and challenges to develop advanced OLED microdisplay panels expecting application to the high-quality VR/MR head-mounted displays. image