International Display Workshops General Incorporated Association

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

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

Dec 14, 2022 - Dec 16, 2022
Fukuoka International Congress Center

[AMDp2-1] New LTPS Driving Circuit with Simultaneous Emission for Mini-LED Backlit Liquid-Crystal Displays

*Jui-Hung Chang1, Chia-Lun Lee1, Chieh-An Lin1, Ming-Yang Den2, Chih-Lung Lin1 (1.National Cheng Kung University (Taiwan), 2.AU Optronics Corp. (Taiwan))

Low-temperature polycrystalline silicon (LTPS), mini light-emitting diode (mini-LED), pulse-width modulation

https://doi.org/10.36463/idw.2022.0230

A mini-LED circuit with simultaneous emission (SE) and pulse-width modulation (PWM) driving method is proposed for liquid-crystal display backlights. Analytical results show that the relative current error rates are below 4.2%, and the power consumption is reduced by 21.83% when mini-LEDs are operated at a high luminous efficacy.