Organic Electronic Device and Display Device Comprising the Organic Electronic Device

An organic electronic device comprising an anode, a cathode, at least one photoactive layer and at least one organic semiconductor layer, wherein the at least one organic semiconductor layer is arranged between the at least one photoactive layer and the cathode;

• and wherein the at least one organic semiconductor layer comprises a Cs-symmetric compound of Formula (1):
• wherein
• R1-R4 are independently selected from a substituted or unsubstituted C6-C36 aryl, and a substituted or unsubstituted C3-C36 heteroaryl;
• wherein at least one of the R1-R4 is selected from a C3-C36 heteroaryl group or heteroarylene group which is directly attached to the pyrazine ring in formula 1 and at least three of R1-R4 are different to each other;
• wherein, if substituent(s) are present in R1, R2, R3, and R4, the substituent(s) are independently selected from the groups consisting of C6-C18 aryl, C3-C20 heteroaryl, D, F, CN, C1-C16 alkyl, C1-C16 alkoxy, PY(R)2, OR, SR, (C═O)R, (C═O)N(R)2, Si(R)3, (S═O)R, and
• whereby
• Y is O or S;
• and
• R is independently selected from C1-C20 linear alkyl, C1-C20 alkoxy, C1-C20 thioalkyl, C3-C20 branched alkyl, C3-C20 cyclic alkyl, C3-C20 branched alkoxy, C3-C20 cyclic alkoxy, C3-C20 branched thioalkyl, C3-C20 cyclic thioalkyl, C6-C20 aryl and C3-C20 heteroaryl;
• and
• wherein
• the following compounds 1-4 are excluded: