Apple suggest the transparent technology would make for a good Mac Tablet, with a flip-down trackpad layer that could double as a keyboard-style input device thanks to some of those polarised numbers (which can only be viewed when the panel is opened), or as a window in a traditional laptop form-factor to view a “sub-display” section of the laptop’s screen. The patent suggests the use of an OLED display, different sections of which can be shut off to reduce power drain.
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