Organic compound and organic electroluminescent device, and electronic apparatus thereof

An organic compound, having a structure shown in Formula I:

• wherein,
• X is selected from a single bond, C(R4R5), O, and S;
• R4 and R5 are the same or different, and are each independently selected from a hydrogen, an alkyl having 1 to 10 carbon atoms, and an aryl having 6 to 20 carbon atoms;
• R1, R2, and R3 are the same or different, and are each independently selected from a deuterium, a cyano, a halogen group, an alkyl having 1 to 10 carbon atoms, a haloalkyl having 1 to 10 carbon atoms, a deuteroalkyl having 1 to 10 carbon atoms, a deuteroaryl having 6 to 12 carbon atoms, a trialkylsilyl having 3 to 12 carbon atoms, an aryl having 6 to 20 carbon atoms, a heteroaryl having 3 to 20 carbon atoms, and a cycloalkyl having 3 to 10 carbon atoms;
• m is the number of sequentially linked L, and m is selected from 0, 1, and 2;
• n1 is the number of R1, and n1 is selected from 0, 1, 2, 3, and 4;
• when n1 is greater than 1, any two R1 are the same or different;
• optionally, any two adjacent R1 form a ring;
• n2 is the number of R2, and n2 is selected from 0, 1, 2, 3, and 4;
• when n2 is greater than 1, any two R2 are the same or different;
• optionally, any two adjacent R2 form a ring;
• n3 is the number of R3, and n3 is selected from 0, 1, 2, 3, and 4;
• when n3 is greater than 1, any two R3 are the same or different;
• optionally, any two adjacent R3 form a ring;
• L, L1, and L2 are the same or different, and are each independently selected from a single bond, a substituted or unsubstituted arylene having 6 to 30 carbon atoms, and a substituted or unsubstituted heteroarylene having 3 to 30 carbon atoms;
• Ar1 and Ar2 are each independently selected from a substituted or unsubstituted aryl having 6 to 30 carbon atoms and a substituted or unsubstituted heteroaryl having 3 to 30 carbon atoms;
• substituent(s) in L, L1, L2, Ar1 and Ar2 are the same or different, and are each independently selected from a deuterium, a cyano, a halogen group, an alkyl having 1 to 10 carbon atoms, a haloalkyl having 1 to 10 carbon atoms, a deuteroalkyl having 1 to 10 carbon atoms, a trialkylsilyl having 3 to 12 carbon atoms, an aryl having 6 to 20 carbon atoms, a heteroaryl having 3 to 20 carbon atoms, and a cycloalkyl having 3 to 10 carbon atoms;
• optionally, any two adjacent substituents in Ar1 form a saturated or unsaturated 3-membered to 15-membered ring;
• optionally, any two adjacent substituents in Ar2 form a saturated or unsaturated 3-membered to 15-membered ring.