www.engadget.com/xiaomi-mi-tv-lux-transparent-oled-145546141.html
www.engadget.com/lg-display-transparent-oled-subway-windows-134125906.html
www.lg.com/us/business/lg-oled-displays/lg-55ew5tf-a
www.engadget.com/2012-08-30-samsung-22-inch-transparent-showcase-panel-eyes-on.html
3M Vikuiti