AR/VR headsets/glasses products may usher in a leap forward in the display, as both Samsung Display and LG Display are developing OLED on silicon (OLEDoS) and LED on silicon (LEDoS) technologies. Once deployed on a large scale, there will be dramatic improvements in the clarity, brightness, and size of these devices.
The Elec reports that both Samsung Display and LG Display are developing their own OLEDoS and LEDoS technologies.
Samsung Display currently plans to supply the parent company Samsung with a silicon-based OLED solution with a PPI of 3,000 and a brightness of 10,000 nits, while the silicon-based LED solution can achieve a higher 6,000 or even 7,000 PPI. LG Display is to provide Apple with a silicon-based OLED solution, so the research and development of silicon-based OLED technology started earlier than Samsung Display, and their silicon-based OLED solution is expected to be applied to the mixed reality device that Apple should launch next year.
Both silicon-based OLED and silicon-based LED are technologies developed based on higher PPI requirements. Among them, compared with traditional glass-based OLEDs, silicon-based OLEDs can greatly increase the PPI pixel density while reducing the physical size of the display panel because the pixels are directly placed on a silicon wafer instead of a glass substrate.
Generally, in an area of about 1 inch, the PPI of silicon-based OLEDs can reach 3000 or higher.
For VR/AR headsets/glasses that require extremely high PPI, silicon-based OLED and silicon-based LED are undoubtedly very good display technologies. Higher PPI can bring users a clearer picture, thereby improving the experience of using BR/AR. Sony’s silicon-based OLED technology is currently at the forefront of this road, and their solution is to use white OLED and red, green, and blue color filters.
