UNIVERSAL DISPLAY CORPORATION; XIA, Chuanjin; YEAGER, Walter; LI, David Zenan; FIORDELISIO, James; MA, Bin; ELSHENAWY, Zeinab; LAYEK, Suman; BARRON, Edward; KOTTAS, Gregg; BROOKS, Jason Patent: WO2012/116231 A2, 2012 ; Location in patent: Page/Page column 159-160 ;