This shade works horizontally, sliding from top to bottom and
vice versa, like a blind, as opposed to traditional draperies,
which work vertically, sliding from center to sides and from
sides to center, or from one side to another in either
When the shade is in the down position, it hangs totally flat
(as its name suggests), both horizontally and vertically. As the
shade rises, it creates folds that stack up behind each other
towards the top. Another variety has the shade going in reverse,
with the folds stacking on the bottom.
In order to ease its horizontal lifting, the shade is divided
into equal and proportional spaces (visible or hidden),
according to its folding style.