For Orbital Portable, we thought carrying a 1.60m diameter circle was annoying, so we created a Japanese fan-like wooden structure to form an 8-arms star. We then placed the LED strip inside a nice silicon diffuser to give it some rigidity and hold it in 8 points using aluminum brackets.
The wooden frame can be folded or unfolded by untying the wing screw that hold every pieces together. We also used teethed washed to increase the friction. A rope is attached to each wooden piece to keep an angle of 45° between them. It's not mandatory but still very useful to deploy it.
The diffuser make the game a little more blurry. It's still very playable but true hardcore gamers will prefer the pure square LED pixels.
Another great aspect of the diffuser is the added protection of the LED strip again elements while carrying Orbital Portable. It's waterproof, absorb shocks, increase the bend radius, you can (gently) pull on it, etc.