The 32 inch e-Ink display costs $2,576. For which you can get an 86 inch 4K HDTV at Costco.
The e-Ink people have got to get their costs down.
The e-Ink people have got to get their costs down.
I work in the display industry. No vendor can get their cost down unless they're able to get their volumes up to millions of units per quarter. It's a power scaling law. I doubt E-Ink even manages to sell 10,000 32 inch displays per quarter and if I'm not mistaken these backplanes and laminate material are kerfed by hand! Notice that small sized displays on the other hand are much cheaper. As long as there's nobody willing to pony up an order for a million 32 inch displays, the status quo will likely remain the same.
On the other hand, LCD could be used to create an opacity-changing window, but LCD panels block a lot of light even when they're fully "transparent," which is why they consume so much power (their backlights have to be very bright).