Oxide TFT‐Based Scan Driver Circuit With Blocking Structure for Multisignal Output
Hwarim Im, Eun Kyo Jung, Shin‐Hyeong Kim, Kook Chul Moon, Yong‐Sang KimABSTRACT
This paper proposes an oxide semiconductor thin‐film transistor‐based scan driver circuit enabling multiple signals output. The proposed circuit alleviates the mutual interferences between the clock signals for each output by using the blocking structure, resulting in stable operation. The blocking structure disconnects the control nodes of each output to prevent undesirable output pulse and improve output signal characteristics. The proposed scan driver circuit reduces power consumption by 42.3% through multiple outputs in a single stage. The proposed circuit stably outputs multiple signals in the circuit simulation as the threshold voltage varies from −1.6 to 0.8 V. The fabricated circuit operates as a shift register with multiple output signals.