Compound and organic light emitting device comprising the same

A compound of the following Chemical Formula 1:

• wherein, in Chemical Formula 1,
• HAr1 is a divalent triazinyl group that is unsubstituted or substituted with one substituent selected from the group consisting of deuterium, a substituted or unsubstituted aryl group having 6 to 60 carbon atoms, and a substituted or unsubstituted heteroaryl group having 2 to 60 carbon atoms;
• a divalent pyrimidinyl group that is unsubstituted or substituted with one or two substituents each independently selected from the group consisting of deuterium, a substituted or unsubstituted alkyl group having 1 to 60 carbon atoms, a substituted or unsubstituted aryl group having 6 to 60 carbon atoms, and a substituted or unsubstituted heteroaryl group having 2 to 60 carbon atoms;
• a divalent quinazolinyl group that is unsubstituted or substituted with deuterium;
• a divalent benzothienopyrimidinyl group that is unsubstituted or substituted with one substituent selected from the group consisting of deuterium, a substituted or unsubstituted aryl group having 6 to 60 carbon atoms, and a substituted or unsubstituted heteroaryl group having 2 to 60 carbon atoms;
• or a divalent benzofuropyrimidinyl group that is unsubstituted or substituted with one substituent selected from the group consisting of deuterium, a substituted or unsubstituted aryl group having 6 to 60 carbon atoms, and a substituted or unsubstituted heteroaryl group having 2 to 60 carbon atoms,
• HAr2 is a triazinyl group that is unsubstituted or substituted with two substituents each independently selected from the group consisting of deuterium, a substituted or unsubstituted aryl group having 6 to 60 carbon atoms, and a substituted or unsubstituted heteroaryl group having 2 to 60 carbon atoms;
• a pyrimidinyl group that is unsubstituted or substituted with one to three substituents each independently selected from the group consisting of deuterium, a substituted or unsubstituted alkyl group having 1 to 60 carbon atoms, a substituted or unsubstituted aryl group having 6 to 60 carbon atoms, and a substituted or unsubstituted heteroaryl group having 2 to 60 carbon atoms;
• a quinazolinyl group that is unsubstituted or substituted with one substituent selected from the group consisting of deuterium, a substituted or unsubstituted aryl group having 6 to 60 carbon atoms, and a substituted or unsubstituted heteroaryl group having 2 to 60 carbon atoms;
• a benzothienopyrimidinyl group that is unsubstituted or substituted with one substituent selected from the group consisting of deuterium, a substituted or unsubstituted aryl group having 6 to 60 carbon atoms, and a substituted or unsubstituted heteroaryl group having 2 to 60 carbon atoms;
• or a benzofuropyrimidinyl group that is unsubstituted or substituted with one substituent selected from the group consisting of deuterium, a substituted or unsubstituted aryl group having 6 to 60 carbon atoms, and a substituted or unsubstituted heteroaryl group having 2 to 60 carbon atoms,
• L1 is a substituted or unsubstituted arylene group having 6 to 60 carbon atoms,
• Ar1 is an aryl group having 6 to 60 carbon atoms that is substituted with one or more cyano groups, and is optionally further substituted with deuterium,
• Ar21 to Ar23 are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• or a substituted or unsubstituted aryl group having 6 to 60 carbon atoms,
• R1 and R2 are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• or a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms,
• n is an integer from 1 to 4, and when n is 2 or higher, R1's are the same as or different from each other,
• m is an integer from 1 to 3, and when m is 2 or higher, R2's are the same as or different from each other,
• a1, a2, and a3 are each 0 or 1,
• a
• ⁢
• 1
• +
• a
• ⁢
• 2
• +
• a
• ⁢
• 3
• ≥
• 1
• ,
• and
• a
• ⁢
• 1
• +
• a
• ⁢
• 2
• +
• a
• ⁢
• 3
• +
• m
• =
• 4.