International Display Workshops General Incorporated Association

[DESp1-1] A Novel Pixel Driving Circuit for the Optimal Power Efficiency in Micro LED Display

*Lamei Luo1,2, Jhongciao Ke2, Daobing Hu2, Shi Tang2, Yanrui Lin1,2 (1. Peking University (China), 2. TCL China Star Optoelectronics Technology Co., Ltd (China))

PHM, Pixel circuit, Low-grayscale mura, Mini-/micro-LED

https://doi.org/10.36463/idw.2023.1088

A novel pixel driving circuit was proposed for the micro-LED display. The emission time of micro-LED was decreased to improve the LED efficiency operating in the high driving current. Additionally, the internal compensation section can eliminate the threshold voltage differences of 0-3V of the driving TFT. In this paper, the operation principle and simulation results will be illustrated to demonstrate the performance of the ...