Now that would be sweet, or instead of my 4 monitors, I had the wall, and I could scale, expand, place various screens in different placements. This effectively is how we use multiple monitors now, at least I do. That would solve it... although still need a way to hide certain browsers, tabs, etc.
The joke back in the 80s was that what we really wanted was to buy 4x8 sheets of monitor at the store and cut and panel as needed. Then one day my brother said that he simply wanted a can of monitor paint ...
For an interesting short animated science fiction film that gives you a glimpse of ubiquitous computer displays check out Pale Cocoon:
You're thinking of a PC as some box you plug things in to, but in the future that could be as antiquated as the old mainframe.