McKenna Long & Aldridge LLP
Red phosphorescent composition and organic electroluminescent device using the same
A red phosphorescent compound, includes a host material being capable of transporting an electron or a hole; and a dopant material represented by the following formula 1:wherein each of R1 to R4 is selected from the group consisting of hydrogen atom (H), C1 to C6 alkyl and C1 to C6 alkoxy, and at least one of R1 to R4 is C1 to C6 alkyl, and wherein each of R5 to R7 is selected from the group consisting of hydrogen, C1 to C6 alkyl and pyrrole, and at least one of R5 to R7 is pyrrole, and wherein each of X and Y is selected from the group consisting of H, non-substituted C1 to C6 alkyl and C1 to C6 alkyl substituted by fluorine.
LG Display Co., Ltd
H H H H
H01L H01L H01L H01L
additional additional additional inventional
Jong-Kwan Do-Han Seung-Jae Chun-Gun Soon-Wook Jung-Keun In-Bum
Bin Kim Lee Park Cha Kim Song