Patent ID: 8029919

Claim:
An organic light-emitting diode comprising as emitter substances or hole and exciton blockers compounds based on Formula I in which: X is SO 2 , SO; R 1 is H, alkyl, aryl, heteroaryl; or R 2 , R 3 are each independently H, alkyl, aryl or COR 31 , where R 2 and R 3 are not at the same time H, wherein aryl is selected from the group consisting of phenyl, naphthyl, indanyl, 1,2-dihydronaphthenyl, 1,4-dihydronaphthenyl, indenyl and 1,2,3,4-tetrahydronaphthyl, which may each be unsubstituted or substituted by one or more further radicals, with the proviso that when aryl is substituted phenyl, further radicals are selected from the group consisting of alkyl, alkoxy, and halogen, or at least one of the R 2 or R 3 radicals is a radical of formula II where the further R 2 or R 3 radical has the same definition or is H, alkyl, aryl, NR 22 R 23 ; the further R 2 or R 3 radical is optionally likewise a radical of formula II, or one of the R 2 or R 3 radicals is a radical of formula III where the further R 2 or R 3 radical is H, alkyl, aryl, NR 22 R 23 ; R 4 , R 5 , R 13 , R 14 , R 15 , R 16 , R 18 , R 19 , R 20 , R 21 are each independently alkyl, aryl, alkenyl, alkynyl or alkylaryl; R 17 is halogen, alkoxy, alkyl, aryl, alkenyl, alkynyl or alkylaryl; m, n are each 0, 1, 2 or 3; o, p, q, r, s, t, u, v, w are each 0, 1, 2, 3 or 4; z is 1 or 2; R 6 , R 7 are each independently H, alkyl, aryl, alkenyl, alkynyl, alkylaryl, alkoxy, aryloxy or NR 22 R 23 ; R 8 , R 9 , R 10 , R 11 are each independently H, alkyl, aryl, alkenyl, alkynyl or alkylaryl; R 12 is H, alkyl or aryl; R 22 , R 23 are each independently H, alkyl, aryl; or R 22 and R 23 together form a cyclic radical; Y, Z, W are each S, SO 2 ; O, SO; and Ar is arylene; and R 31 is H, alkyl or aryl.