A Novel AMOLED Pixel Circuit to Alleviate Effects of Leakage Current using Additional Compensation Leakage Current Path

Yi-Jui Chen, Fang-Yi Lin, Jui-Hung Chang, Po-Chun Lai, Chih-Lung Lin

doi:https://doi.org/10.36463/idw.2022.0493

[OLEDp2/AMDp3-2] A Novel AMOLED Pixel Circuit to Alleviate Effects of Leakage Current using Additional Compensation Leakage Current Path

Yi-Jui Chen¹, *Fang-Yi Lin¹, Jui-Hung Chang¹, Po-Chun Lai², Chih-Lung Lin¹ (1.National Cheng Kung University (Taiwan), 2.AU Optronics Corp. (Taiwan))

Active-matrix organic light-emitting diode (AMOLED), Compensation pixel circuit, Low-frame-rate

https://doi.org/10.36463/idw.2022.0493

This work proposes a new AMOLED pixel circuit compensating for the threshold voltage (V_TH) of driving TFTs and V_DD I-R drop. Moreover, the effect of large leakage currents for LTPS TFTs is alleviated. Simulation results show that the relative current error rates are below 4.72% as V_TH varies by ±0.5V.

Proceedings of the International Display Workshops Volume 29 (IDW '22)

[OLEDp2/AMDp3-2] A Novel AMOLED Pixel Circuit to Alleviate Effects of Leakage Current using Additional Compensation Leakage Current Path