Spatial Reality Display
A spatial reality display is a glasses-free stereoscopic display that uses directional optics to present different image information to the viewer’s two eyes. Sony’s ELF-SR2 uses a special micro-optical lens in front of its LCD; Sony describes this optical layer as the element that produces the glasses-free 3D effect.
The ELF-SR2 User Guide identifies HDMI, DisplayPort, and USB-C DisplayPort Alt Mode as video-input methods. Its connection diagram shows HDMI and USB connections for a computer setup, and its specifications list 3840 × 2160p at 60 Hz and 1920 × 1080p among the supported video signals. The exact signal format still depends on the playback system and display configuration.
In the KOTE Gallery installation documented on this site, a Raspberry Pi 4B provided the prepared stereoscopic film over HDMI. The installation used a side-by-side frame-compatible master; this is the production setup described in the article, not a claim that every ELF-SR2 source must use that format.
For the complete exhibition context, connection diagram, playback workflow, and film credits, see Sony Spatial Reality Display: Glasses-Free Stereoscopic Cinema at KOTE Gallery, Seoul.
Sources: Sony ELF-SR2 User Guide, Sony ELF-SR2 support.