Affiliation:
1. State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou China
2. School of Electronic and Information Engineering South China University of Technology Guangzhou China
3. New Vision Opto‐Electronic Technology Co., Ltd. Guangzhou China
Abstract
AbstractA new gate driver with metal oxide thin‐film transistors (MO‐TFTs) has been presented for micro‐light‐emitting diode (Micro‐LED) display. The proposed gate driver employing linearly decreasing sweep signal generated module could realize the line‐by‐line pulse width modulation (PWM) driving method, which is valuable for application in high‐resolution Micro‐LED display compared with the conventional driving method employing global sweep signal. A simple Micro‐LED pixel circuit including an inverter module driven by the analog PWM method is employed to demonstrate the feasibility of the proposed gate driver. A 10 × 10 green Micro‐LED display array has been fabricated with MO‐TFTs backplane technology. It is shown that a 10‐μs width pulse and linearly scanning sweep signal can be successfully output. Consequently, the pixel circuit array can be driven properly under analog line‐by‐line PWM driving method.
Funder
Dream Project of Ministry of Science and Technology of the People's Republic of China
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
Natural Science Foundation of Guangdong Province