Compound and sensor and sensor embedded display panel and electronic device

A compound represented by Chemical Formula 1:

• wherein, in Chemical Formula 1,
• X1 is Se, Te, SO, SO2, NRa, BRb, CRcRd, SiReRf, or GeRgRh,
• Ar1 is a substituted or unsubstituted C6 to C30 aromatic ring, a substituted or unsubstituted C2 to C30 heteroaromatic ring, or a fused ring thereof,
• X2 and X3 are each independently O, S, Se, Te, SO, SO2, NRi, BRj, CRkRl, SiRmRn, or GeRoRp,
• L1 is (CR3R4)n or R5C═CR6, wherein n is an integer of 1 to 3,
• A is a cyclic group including C═Z1, a halogen, a C1 to C30 haloalkyl group, a cyano group, a dicyanovinyl group, or any combination thereof, wherein Z1 is O, S, Se, Te, or CRqRr, Rq and Rr are each independently hydrogen, a substituted or unsubstituted C1 to C20 alkyl group, a carbonyl group, a cyano group, a dicyanovinyl group, or any combination thereof, and Rq and Rr are each independently present or linked to each other to form a ring,
• R1 to R6 and Ra to Rp are each independently hydrogen, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C1 to C30 alkylthio group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C3 to C30 heterocyclic group, a halogen, a cyano group, or any combination thereof, and
• R1 to R6 and Ra to Rp are each independently present or adjacent two of R1 to R6 and Ra to Rp are linked to each other to form a ring.