Universal Display Corporation and Novaled in a joint effort have developed a saturated red PHOLED phosphorescent organic light emitting diode (OLED) device with a luminous efficacy of 15 candelas per ampere (cd/A). The operating voltage is less than 4 V for a record power efficiency of 12 lumens per Watt—all at 1000 candelas per square meter brightness. This milestone was achieved through the combination of Universal Display's high-efficiency PHOLED phosphorescent OLED technology and materials with Novaled's low-voltage-conductivity doped Novaled PIN-OLED technology and transport materials.

Universal Display's proprietary PHOLED technology offers up to 100% internal quantum efficiency that is as much as four times higher than conventional OLED technology. Novaled's proprietary doping technology and materials offer very low voltage OLEDs that are up to three times lower than conventional OLED technology. The company has successfully shown that very low device voltages can be combined with long operational lifetimes.

The red PIN PHOLED device with color coordinates of CIE (0.65, 0.35) has a peak external quantum efficiency of 16% and a drive voltage of less than 4 V at 1,000 candelas/square meter. The device also demonstrates excellent projected operational lifetimes of greater than 150,000 hours at an initial luminance of 500 candelas/square meter, with a luminous efficacy exceeding 15 candelas/Ampere. The record-setting 12 lumens/Watt power efficiency (at 1,000 candelas/square meter) is a result of Universal Display's PHOLED high luminous efficiency and the low drive voltage of Novaled's doped transport materials.

Universal Display Corporation develops OLED technologies and materials for use in the electronic flat panel display, lighting and other optoelectronic markets. Novaled is engaged in the research, development and marketing of OLED technologies.