> Are you willing to pay for it? A lot of manufacturers make displays intended for digital signage, which under the hood are basically just a TV with different software

According to your link (and to what I've seen at work) that's not entirlely correct. One of the differences they give:

> Built to run from 16/7 to 24/7 hours per day, have better cooling for longer runtimes

I bet this alone increases the price but quite a hefty amount.

I'm not the GP, but if they're anything like me, they just want the "dumb" part, not the "runs 24/7/365 at blindingly high levels of brightness".