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30inch OLED screen
http://www.tweaktown.com/news/52937/dell-surprises-new-30-inch-4k-120hz-oled-display/index.html
Touchfoil Www.displax.com
Glass https://www.pilkington.com/en-gb/uk/products/product-categories/special-applications/pilkington-mirroview/
@robertwilding
What you need is a thin LED (OLED) monitor, a raspberry, a good two way mirror glass and touch foil. The bigger dimensions you go for the more it will cost.