- Aug 3, 2021
Google was on a secret project with LG, as this news was officially announced last year. After the completion of a project, both companies came forward to unveil the world’s first high-resolution OLED display for AR and VR. This high-resolution OLED display triples the pixels per inch (PPI) count of current consumer headsets from the HTC and Oculus. The screen has a 1443 PPI wide field of view which further optimizes the mobile AR and VR.
Google wanted to arrive at a point where virtual reality experience feels completely real. To accomplish the same, Google and LG were engaged on a secret project to create VR capable OLED display with 10x more pixels than leading 2 MP consumer VR displays.
The Google high resolution OLED VR display is 4.3 inches supporting 1443 PPI with 120HZ refresh rate. It has 4800 x 3840 prototype panel which is known to be the highest resolution OLED-on-glass display. As a research paper notes, the upper bound of human vision is 9600 x 9000 and a field of view of (FOV) 160 x 150 where the FOV provided by Google is 120 x 96.
If we compare this device with other leading device in the market HTC is featuring a 3.6 inch 1080 x 1200 pixel display per eye and Vive Pro is equipped with 3.5 inches 1440 x 1600 pixel display per eye. This both devices have 90Hz refresh rates and 110 degrees of FOV at 448 and 615 PPI.
Google and LG fabricate a custom driver integrated circuit (IC) in this device. The second powerful feature of this high-resolution OLED display is foveated rendering. This feature renders only those things which a user is looking at in 4800 x 3840, while everything at that point appears in low resolution. This also supports 150 cd/m2 @20% duty brightness > 15000:1 contrast and 10-bit color depth.
Google claims that they designed the display so that two – one for each eye – can be powered by a mobile SoC on a mobile headset. The company stated that the screens do support 120Hz but the limitations of mobile SoC might run at 75Hz on mobile VR headsets.