Patent ID: 8664644

Claim:
A pixel driver circuit comprising: a light-emitting device, an address line; a data line; a switch thin film transistor, a first node of the switch transistor being connected to the data line and a gate of the switch transistor being connected to the address line; a feedback thin film transistor, a gate of the feedback transistor being connected to the address line, and a second node of the feedback transistor being connected to the data line; a reference thin film transistor, a first node of the reference transistor being connected to the light-emitting device, a gate of the reference transistor being connected to the second node of the switch transistor, and a second node of the reference transistor being connected to a first node of the feedback transistor; and a drive thin film transistor, a gate of the drive transistor being connected to the gate of the reference transistor, and a first node of the drive transistor being connected to a potential, and a second node of the drive transistor being connected to the light-emitting device.