International Display Workshops General Incorporated Association

Proceedings of the International Display Workshops Volume 27 (IDW '20)

Proceedings of the International Display Workshops Volume 27 (IDW '20)

Dec 9, 2020 - Dec 11, 2020
Virtual Conference

9:50 AM - 10:10 AM

[AMD4-3] Micro-LED Pixel Circuit with n-type LTPS TFTs for Pulse Width Modulation Operation

*Yong-Hoo Hong1, Eun Kyo Jung1, Jungwoo Lee1, KeeChan Park2, Jae-Hong Jeon3, Soo-Yeon Lee4, Yong-Sang Kim1 (1. Sungkyunkwan University(Korea), 2. Konkuk University(Korea), 3. Korea Aerospace University(Korea), 4. Seoul National University(Korea))

Micro-LED, Vth compensation, Pulse width modulation (PWM), Pixel circuit, N-type LTPS TFTs

https://doi.org/10.36463/idw.2020.0188

This paper proposes a novel micro-LED pixel circuit using Pulse Width Modulation (PWM) operation method for preventing wavelength shifts generated by current density. In addition, the proposed circuit applies the internal Vth compensation method to remove external sensing structure.