OLED-displays have been used in VR garrisons for years because of the short response time of pixels and the ability to display rich dark colors. Such solutions have been used and continue to be used by Meta*, Samsung and other companies. However, Samsung Display has decided to develop a different technology for advanced reality devices.
According to Samsung Display chapter Kim Min Woo, who spoke at Microsoft Display Workshop, the company is developing a new-generation technology for AR-displays, "MicroLED on Silicon Substrate" or simply LEDos. Today, the substrate for Microsoft panels is usually used not as silicon, but as glass, which does not allow for the super-high density of pixels.
According to Kim, the resolution of the AR-display must be at least 5,000 ppm and the distance between the pixels must not exceed 5 μm. The sub-pixels of red, green and blue colours must be no more than 3 μm and each LED element must not be more than 10 μm in its entirety. It is believed that the long-term goal of Samsung is to develop displays with a pixels density of at least 6,600 inches. In comparison, in garritures such as Odyssey VR, the density of the pixels is 615 ppi per mini-screen.
In addition to LEDOS, Samsung Display is also developing OLED on silicon, OLEDOS, but LEDOS will provide higher luminance and is better suited for AR electronics, while OLEDOS is for VR and MR . However, LEDOS can provide higher luminance, which is more important for displays that are used in completed rather than fully virtual reality devices because they have to compete with ambient lighting.
Today, Meta*, the largest VR manufacturer, is trying to brighten up some 10,000 cd/m2 for the re-drafting of realistic street scenes. This is five to ten times more bright than the best of modern smartphones can provide. In order to achieve increased luminance, modern Meta*Quest Pro's "local blackout" is supported by 500 LED lighting elements for each display.
* Listed on the list of voluntary associations and religious organizations in respect of which the court has taken a legally enforceable decision to abolish or prohibit activities on the grounds provided for in Federal Act No. 114-FZ of 25 July 2002 on countering extremist activities.