LG showing off its OLED transparent display technology in Japan during the FPD International 2009. Using organic EL materials, the display allows the organic EL light (negative & positive electrode) to exit from the both side.
LG Display demonstrated a 15-inch transparent OLED display, which is aimed at use in public places. The transmittance of the display, which is the first sample, is 30%. The company has not yet decided when to commercialize it.