Universal Display and Acuity Brands presented advances in their stripes white OLED architecture project. A stripes OLED is made from thin stripes of red, green and blue OLEDs. When you put a diffuser panel on top, it appears white. The stripes architectural results in efficient panels, that are also color tunable (2500-4000K).
UDC reports that the project is proceeding well - and in fact the pixel performance exceeds the project's goal. They fabricated the first 15x15 cm panel samples already and both companies are on target to deliver the actual luminaries in 2012 (which are based on the same design as the Kindred and the Revel - the lamps that use LG Chem's OLED panels). UDC is also working to further optimize the panel's performance.
UDC reports that the red (0.622,0.374) features 31 lm/W, 3.0 V and 30 cd/A. The green (0.412, 0.575) features 74 lm/W, 2.7 V and 63 cd/A. The blue stripe features 38 lm/W, 4.4 V and 53 cd/A. Interestingly, the blue stripe is actually more efficient than the red one The panel as a whole features 54 lm/W and 1000 cd/m2 brightness.
UDC and AB received $2 million from the DOE for this project back in November 2010. The stripes OLED design isn't new though - UDC worked on OVJP printing of this panel type back in 2004, and reported efficiency updates in 2005.
Here's the full UDC/AB presentation to the DOE.
UDC also announced today that the company was recognized by the DOE for outstanding achievements in solid-state lighting throughout 2011. This is the fifth consecutive year that the company has received this DOE award, this time for UDC's demonstration of an all-phosphorescent OLED lighting system with greater than 55 lm/W system efficacy in an under-cabinet application.