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

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

Dec 14 - Dec 16, 2022Fukuoka International Congress Center
The International Display Workshops
Proceedings of the International Display Workshops Volume 29 (IDW '22)

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

Dec 14 - Dec 16, 2022Fukuoka International Congress Center

[DES4-1]P-Type LTPS TFT-based Micro Light-Emitting Diode Pixel Circuit using Quaternary Digital Driving

*Hwarim Im1, Eun Kyo Jung1, Yong-Sang Kim1(1.Sungkyunkwan University (Korea))
https://doi.org/10.36463/idw.2022.0979

Keywords:

Micro light-emitting diode,pixel circuit,quaternary digital driving,p-type LTPS TFTs,color shift

We proposed a micro light-emitting diode (μLED) pixel circuit using quaternary digital driving. The proposed circuit used a stepwise signal to control the emission time. The proposed circuit exhibited a low delay time below 500 ns and an error rate below 3% with a threshold voltage shift of ±0.5 V.