P‐5.24: Improvement of a‐Si TFT Performance on Adjustable Frequency G‐sync Function Monitor Display

In this paper, the electrical performance of a‐Si TFT product on adjustable frequency display is studied. It is found that panel flicker behavior is related to a‐Si channel characteristics, which is related to the TFT Cgs capacitance increase at low display frequency. And it is also found that the relationship between brightness fluctuations and TFT leakage current affected by Poole‐Frenkel effect. By optimizing TFT process parameter to reduce the change of Cgs capacitance and reduce TFT leakage current in Poole‐Frenkel region, panel flicker performance is obviously improved. As a result, gaming display product can meet the G‐sync optical standard requirement.