This application related to an opto-electrical device, comprising a first ACLED having a first n-type semiconductor layer, a first light emitting layer, a first p-type semiconductor layer, a first p-type electrode and a first n-type electrode; a second ACLED having a second n-type semiconductor layer, a second light emitting layer, a second p-type semiconductor layer, a second p-type electrode and a second n-type electrode, wherein each of the first ACLED and the second ACLED are vertical stack structure and is connected in anti-parallel manner.