[Ragnarokk]

You can already find things like this : https://zh-tw.buyepaper.com/products/good-display-312-inch-l... It's a bit pricy though for the moment but It may just be a matter of investment.

[laktak]

This looks the most promising even though it's not a finished product until you look at the $2000 price tag.

[Ragnarokk]

Yes. But I imagine that if someone comes up with a branded final product and works with the manufactuer to have maybe smaller screen sizes and bigger batchs, it would be able to reach a reasonable price