International Display Workshops General Incorporated Association

Proceedings of the International Display Workshops Volume 30 (IDW '23)

Proceedings of the International Display Workshops Volume 30 (IDW '23)

Dec 6, 2023 - Dec 8, 2023
TOKI MESSE Niigata Convention Center

10:00 AM - 10:20 AM

[AMD3-4] Oxide Semiconductor Thin-Film Transistor-Based Micro-LED Pixel Circuit with External Sensing System

*Hye-Won Woo1, Hwarim Im1, Kook Chul Moon2, Yong-Sang Kim1 (1. University of Sungkyunkwan (Korea), 2. University of Gachon (Korea))

Micro-LED, Pixel Circuit, External Sensing System, Oxide Semiconductor

https://doi.org/10.36463/idw.2023.0185

We propose an oxide semiconductor thin-film transistor-based micro light-emitting diode pixel circuit with an external sensing system. The proposed circuit expressed gray levels using pulse width modulation. We achieved stable operation using an external sensing system with an error rate lower than 1.1% under threshold voltage variations of ±1 V.