This is probably an LCD panel with the polarizer removed, so the UI will require a bright/strong source of light behind it.
Going on ten years ago I saw an early transparent OLED screen (TV-sized). It didn’t need a strong light source behind it. Could be those got cheap enough in a small size to put in a $29 camera.
alt Hacker News
Going on ten years ago I saw an early transparent OLED screen (TV-sized). It didn’t need a strong light source behind it. Could be those got cheap enough in a small size to put in a $29 camera.