In this paper, a scan driver combined with NOR Logic gate using amorphous indium‐gallium‐zinc‐oxide (a‐InGaZnO) thin‐film transistors (TFTs) is proposed. NOR logic gate masks the output signal from the scan driver in order to control the driving frequency. Proposed frequency adaptive scan driver is expected to reduce power consumption depending on the display contents.

In this paper, a low‐power shift register circuit based on coplanar a‐IGZO TFTs using photo‐patternable micron‐sized i‐PUA is proposed for next‐generation display. We confirmed that the fabricated shift register circuit consisting of six coplanar a‐IGZO TFTs and one capacitor successfully operates with low‐power driving within 3 V at various frequencies.