Patent ID: 11968896
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC H  G | IPC G  H

Claim 9:
10. The light-emitting device of claim 1, wherein the emission layer comprises at least one condensed cyclic compound represented by one of Formulae 2-1 to 2-3:, wherein, in Formulae 2-1 to 2-3,
Z1 is a single bond, O, S, Se, C(R11a)(R11b), Si(R11a)(R11b), N(R11a), B, P(═O), or
Z2 is a single bond, O, S, Se, C(R12a)(R12b), Si(R12a)(R12b), N(R12a), B, P(═O), or P(═S),
d11 is an integer in a range from 0 to 4,
d12 is an integer in a range from 0 to 4, and
ring A1 to ring A4, X1 to X4, Y1, Y2, R1 to R4, and d1 to d4 are each the same as described in claim 1, R11a, R12a, R11b, and R12b are each the same as described in connection with R1a in claim 1, and R11 and R12 are each the same as described in connection with R10a in claim 1.