Compound and organic electronic device comprising same

A compound represented by the following Chemical Formula 1:

• in Chemical Formula 1,
• L is a direct bond;
• or a substituted or unsubstituted phenylene group,
• R1 to R4 are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• a halogen group;
• or a substituted or unsubstituted alkyl group,
• a is an integer from 1 to 7,
• b is an integer from 1 to 9,
• when a is 2 or more, a plurality of R3's is the same as or different from each other,
• when b is 2 or more, a plurality of R4's is the same as or different from each other,
• Ar1 is optionally represented by -(L1)m-Ar2 or the following Chemical Formula 2,
• L1 is a direct bond;
• a substituted or unsubstituted phenylene group;
• a substituted or unsubstituted biphenylene group;
• a substituted or unsubstituted naphthylene group;
• or a substituted or unsubstituted divalent fluorene group,
• m is an integer from 0 to 3,
• when m is 2 or more, a plurality of L1's is the same as or different from each other,
• Ar2 is deuterium;
• a halogen group;
• a cyano group;
• an alkyl group;
• an alkoxy group;
• an alkylsilyl group;
• or a substituted or unsubstituted C6 to c30 aryl group,
• in Chemical Formula 2,
• - - - is a moiety which is bonded to N of Chemical Formula 1,
• X is S, O, or SO2,
• m is the same as that defined in Chemical Formula 1,
• R5 to R10 are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• a halogen group;
• a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heteroaryl group,
• c is an integer from 1 to 4,
• d is an integer from 1 to 3,
• when c is 2 or more, a plurality of R5's is the same as or different from each other, and
• when d is 2 or more, a plurality of R6's is the same as or different from each other.