Compound for organic optoelectronic diode, composition for organic optoelectronic diode, organic optoelectronic diode and display device

A compound for an organic optoelectronic diode represented by Chemical Formula 1:

• wherein, in Chemical Formula 1,
• Ar1 is an unsubstituted biphenyl group or an unsubstituted terphenyl group,
• Ar2 is represented by one of Chemical Formula 2A, Chemical Formula 3A, and Chemical Formula 4A, and
• Ar3 is represented by Chemical Formula 2B or Chemical Formula 4B,
• wherein, in Chemical Formula 2A, Chemical Formula 3A, Chemical Formula 4A, Chemical Formula 2B and Chemical Formula 4B,
• X is O,
• R1 and R2 are independently an unsubstituted phenyl group,
• R1 is bonded to the moiety that includes X at the 1 or 4 position,
• R2 is bonded to the moiety that includes X at the 9 position,
• m1 and m2 are each 0, m3 and m4 are each independently 0 or 1, and m1+m2+m3+m4=1, and
• * is a linking point.