Double-spiro type compound and organic light-emitting device containing same

A double spiro structure compound represented by the following Chemical Formula 1:

• wherein, in Chemical Formula 1,
• R1 is represented by any one of the following Chemical Formula A to Chemical Formula C,
• wherein, in Chemical Formula A to Chemical Formula C,
• X1 to X3 are the same as or different from each other, and each independently CH or N;
• at least one of X1 to X3 is N;
• X4 is O, S or NAr5;
• L1 to L3 are the same as or different from each other, and each independently a direct bond;
• a substituted or unsubstituted monocyclic or multicyclic arylene group having 6 to 30 carbon atoms;
• or a substituted or unsubstituted heteroarylene group having 2 to 30 carbon atoms;
• Ar1 to Ar5 are the same as or different from each other, and each independently selected from the group consisting of a substituted or unsubstituted arylamine group;
• a substituted or unsubstituted monocyclic or multicyclic aryl group having 6 to 30 carbon atoms;
• and a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms;
• and
• Cy1 is a substituted or unsubstituted monocyclic or multicyclic hydrocarbon ring having 3 to 30 carbon atoms;
• or a substituted or unsubstituted monocyclic or multicyclic heteroring having 2 to 30 carbon atoms.