Universal Display, Seiko Epson Announce Advances in Printable, Phosphorescent OLED Materials at IDW 2007

Universal Display Corp. has reported significant progress in the development of P2OLED (TM) printable, phosphorescent OLED materials for use with solution-based manufacturing processes, which display manufacturers consider a prospective solution for the cost-effective production of large-area OLED displays. (Reported by SID)

Reported in a joint paper with Seiko Epson Corp. at the SID’s 2007 International Display Workshop (IDW) Conference in Sapporo, Japan, these advances are the result of a three-year joint-development program during which the two companies focused on the successful demonstration of Universal Displays P2OLEDs for application to Epsons proprietary ink-jet printing process technology.

Given by Epsons Takuya Sonoyama, the paper reported progress in red, green and blue P2OLED device performance in spin-coated devices and ink-jet printed devices. According to a UDC press release, the team made significant progress in extending the operating lifetimes of its red and green material P2OLED systems: Red with CIE(0.66, 0.33), luminous efficiency of 9 cd/A and > 50,000 hours of operating lifetime to 50% of initial luminance (at 500 cd/m2) and green with CIE(0.33, 0.63), 35 cd/A and > 50,000 hours (at 1000 cd/m2). The team also reported data for a new sky blue P2OLED with CIE(0.19, 0.40), 18 cd/A and > 3,000 hours (at 500 cd/m2).