Compound, organic electroluminescent device, and display apparatus

An organic electroluminescent device, comprising an anode, an organic light-emitting layer, and a cathode sequentially stacked;

• wherein the organic light-emitting layer contains a compound represented by Chemical Formula 1:
• wherein, L1 and L2 are each independently selected from a single bond or a linking group, the linking group being selected from divalent arylene or divalent heteroarylene;
• Q is a substituted or unsubstituted 2 to 5 ring-fused aryl group, or a substituted or unsubstituted 2 to 5 ring-fused heteroaryl group;
• R1 to R3 are the same or different from each other and are each independently selected from a group consisting of deuterium, fluorine, chlorine, substituted or unsubstituted alkyl having 1 to 12 carbon atoms, substituted or unsubstituted haloalkyl having 1 to 12 carbon atoms, substituted or unsubstituted alkoxy having 1 to 12 carbon atoms, substituted or unsubstituted cycloalkyl having 3 to 10 carbon atoms, substituted or unsubstituted aryl having 6 to 60 carbon atoms, and substituted or unsubstituted heteroaryl having 3 to 60 carbon atoms;
• R4 is selected from deuterium, halogen, cyano, substituted or unsubstituted alkylamino having 1 to 20 carbon atoms, substituted or unsubstituted alkyl having 1 to 20 carbon atoms, substituted or unsubstituted alkoxy having 1 to 20 carbon atoms, substituted or unsubstituted aryloxy having 6 to 30 ring carbon atoms, substituted or unsubstituted arylthio having 6 to 30 ring carbon atoms, substituted or unsubstituted aryl having 6 to 30 ring carbon atoms, and substituted or unsubstituted heterocyclic group having 5 to 30 ring carbon atoms;
• a1 is an integer from 0 to 4;
• when a1 is greater than 1, any two R1 are the same or different;
• a2 is an integer from 0 to 4;
• when a2 is greater than 1, any two R2 are the same or different;
• a3 is an integer from 0 to 3;
• when a3 is greater than 1, any two R3 are the same or different;
• a4 is an integer from 0 to 8;
• when a4 is greater than 1, any two R4 are the same or different.

A display apparatus, comprising an organic electroluminescent device;

• wherein the electroluminescent device comprises an anode, an organic light-emitting layer, and a cathode sequentially stacked;
• the organic light-emitting layer contains a compound represented by Chemical Formula 1:
• wherein, L1 and L2 are each independently selected from a single bond or a linking group, the linking group being selected from divalent arylene or divalent heteroarylene;
• Q is a substituted or unsubstituted 2 to 5 ring-fused aryl group, or a substituted or unsubstituted 2 to 5 ring-fused heteroaryl group;
• R1 to R3 are the same or different from each other and are each independently selected from a group consisting of deuterium, fluorine, chlorine, substituted or unsubstituted alkyl having 1 to 12 carbon atoms, substituted or unsubstituted haloalkyl having 1 to 12 carbon atoms, substituted or unsubstituted alkoxy having 1 to 12 carbon atoms, substituted or unsubstituted cycloalkyl having 3 to 10 carbon atoms, substituted or unsubstituted aryl having 6 to 60 carbon atoms, and substituted or unsubstituted heteroaryl having 3 to 60 carbon atoms;
• R4 is selected from deuterium, halogen, cyano, substituted or unsubstituted alkylamino having 1 to 20 carbon atoms, substituted or unsubstituted alkyl having 1 to 20 carbon atoms, substituted or unsubstituted alkoxy having 1 to 20 carbon atoms, substituted or unsubstituted aryloxy having 6 to 30 ring carbon atoms, substituted or unsubstituted arylthio having 6 to 30 ring carbon atoms, substituted or unsubstituted aryl having 6 to 30 ring carbon atoms, and substituted or unsubstituted heterocyclic group having 5 to 30 ring carbon atoms;
• a1 is an integer from 0 to 4;
• when a1 is greater than 1, any two R1 are the same or different;
• a2 is an integer from 0 to 4;
• when a2 is greater than 1, any two R2 are the same or different;
• a3 is an integer from 0 to 3;
• when a3 is greater than 1, any two R3 are the same or different;
• a4 is an integer from 0 to 8;
• when a4 is greater than 1, any two R4 are the same or different.