Patent ID: 7049012
Filing Date: 2006-05-23
Classification: C07C,C09K,H01L,Y10S

Abstract:
1. An OLED device comprising a light-emitting layer (LEL) containing a host and an emitting dopant located between a cathode and an anode wherein the dopant is an orange-red light emitting rubrene derivative represented by formula (I): wherein: a) there are identical oxy, aza or thio groups at the 2- and 8-positions; b) the phenyl rings in the 5- and 11-positions contain only para-substituents identical to the oxy, aza or thio groups in paragraph a); c) the phenyl rings in the 6- and 12-positions are substituted or unsubstituted; and provided that when a single substituent is present on both phenyl rings in paragraph c), said substituent is not a methoxy group located at the para-position, and provided that all of the substituents are selected so that the wavelength of maximum emission (λ