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With modern laptop screen dimension ratio ever more approaching the 9:16 rather than 3:4, a second screen that expands upwards rather than sidewise, is increasingly more relevant, as it increases the screen area with minimal increase in the maximum linear dimensions (especially, length of any edge of
the screen), making it possible to work in greater diversity of conditions (such as on an an airplane) without bumping into others beside you.
The vertical slide-out dual screen relies on a specialized chassis, which could be based either on small wheels or sliding tracks, that let you slide another screen out upon need. (Not sure though if this is better than simply hinges-based expansion, which could allow for a laptop to be a tablet at the same time. Also, communication link might be a puzzle, with optic link as one of the possilbe solutions.)
[See Picture]. I didn't see that anywhere yet.
(?) Vertical Slide-Out Dual Screen For Laptops
[Inyuki, Aug 13 2012]
||What's wrong with a simple double-fold? The top screen-part folds down toward the keyboard, and ends up glass-to-glass with the middle screen-part. Then that middle part folds toward the keyboard. The parts are so thin these days that the total thickness of the laptop would be quite acceptable.
||[Vernon], maybe that you would have to always expand the whole two of the screens to work? (I agree that would be a very minor inconvenience though, and it has its own merits, such as keeping the screens cleaner.)
||When closed, the" second" screen is the"
top", allowing it to be used as a tablet.
||Hinge up the main screen and it's a
conventional laptop, except the" other side" is
a screen too. Could be good for small-scale
The two displays are treated as separate
monitors by the OS.
||Fold up the other hinge and now the user is
presented with two equal sized displays one
above the other, the top one being a
||Sensors in the hinges indicate mode changes
to the OS, with user overrides from the