Novaled announced it has developed a highly power-efficient white OLED structure achieving 60 lm/W at a brightness of 1,000 cd/m2 capable of reaching 100,000 hours lifetime (at an initial brightness of 1,000 cd/m2). The new OLED uses red and green phosphorescent materials and a commercially available fluorescent blue material.
Novaled says that a fluorescent blue emitter usually results in much less efficient devices, but their PIN OLED technology and proprietary materials resulted in this highly efficient device. Using this fluorescent materiel has several advantages - good device stability, higher lifetime and it is commercially available. It also enables a broad coverage of the complete visible color range.
More technical details on the new system - CRI of 87, CIE color coordinates - 0.470/0.429.