I'd like to know what size quilts you are thinking of for display. Size does make a difference.
For my larger quilt display area I used electrical conduit and then the supports for it to hang it on the wall. To hang my quilt I used those plastic skirt hangers you clip onto plastic hangers and used twill type tape through the holes and sewed the tape into circles so they would go onto the conduit. Those hold my quilt quite well. This way I can change my quilt to suit my mood or the season.
ali