Patent ID: 7134779

Claim:
A light-emitting element circuit disposed on a FPC, comprising: a first light-emitting element sub-circuit comprising a first light-emitting element disposed on a first region of the FPC, and a second light-emitting element disposed on a second region separated from the first region of the FPC; and a second light-emitting element sub-circuit coupled to the first light-emitting element sub-circuit in parallel, comprising a third light-emitting element disposed on the first region of the FPC and a fourth light-emitting element disposed on the second region separated from the first region of the FPC; wherein a first current flows through the first light-emitting element and the second light-emitting element sequentially, a second current different from the first current flows through the third light-emitting element and the fourth light-emitting element sequentially, and current path lengths of the first current and the second current are different.