I visited a friend's home while there as she has a dilemma: how to cover her wall of windows so that there can be some privacy but still let in all of the light and be able to take in the beautiful view of the river that the home backs onto. The windows run almost floor to ceiling, and completely cover the back wall of the open concept living/dining/kitchen space. This includes a patio door in the middle. Also, because the frames of the windows go all the way to the walls on either side, there is no room for a curtain rod to be installed on the walls above the frames.
There are a few options to consider:
1. Bottom up/top down celluar or honeycomb shades.
|IKEA blind via|
2. Panel track blinds.
Running a track on the ceiling above the wall of windows means that you can pull the blinds full across all windows including the door in the middle, or just as far as you'd like. There are many options of privacy levels and designs to choose from.
What's great about this is that you could also install two short tracks on either end on which to hang a pretty curtain in front of the blinds, just at the edges to provide a finished look. They would rest in front a small section of the two end windows, but shouldn't take away too much of the light or view. Or, if you like the look of curtains but want the privacy of panels, you could hang sheer curtains from the tracks and pull across when needed.
3. Privacy window film.
I hope this helps when looking for window covering options for large windows where you would like privacy but not have to sacrifice the view. Note that all of the links on the pictures are to sources for the window options. I like IKEA for price and selection, but there are lots of online blind store options out there.
Please let me know if you've come across other options, or if you've used any of the above and can "shed some light"!