Large displays are of interest to me so I was intrigued by a large display I recently saw in public. It was a round screen about a metre in diameter with horizontal strips of RGB LEDs. It was translucent because of gaps between the "lines". One advantage is that it would be less susceptible to wind as it lets air through. It also allows you to see what's behind it. I don't think it folds; it looks rigid. Here it's used to attract attention with a live video feed. A search readily finds manufacturers and prices are in the order of hundreds of $.