TMDisplay has succeeded in doubling their OLED efficiency using a metal membrance. The new design allows them to run the OLEDs at half the brightness, and thus gain twice the lifetime. TMDisplay did not disclose when they will start making OLED TVs, although the new design should not delay the TVs.

They have also showed a 20.8" prototype.

Kyulux - Hyperfluoresence OLED emittersKyulux - Hyperfluoresence OLED emitters