Backplane Technologies for Micro-LED Display

Presenter: Yong Sang Kim, Professor, SungkyunKwan University

Abstract: Nowadays, the micro light emitting diode (m-LED) display is becoming the future of the display market. The development of such display has two main key technologies, the first one is the GaN based m-LED device issue and the second is the transfer technology that is responsible to achieve the large area display. However, the backplane systems for LED driving is also an important technology to achieve the m-LED display products. This talk will cover all the backplane technologies for m-LED display including the crystalline Si-wafers, thin film transistors (TFTs) based backplane technology, and printed circuit boards (PCBs). And during this backplane technology review for m-LED display, it will also explore the challenges that the industry is facing for this product development.

Bio: Dr. Yong-Sang Kim is a Professor at the School of Electronic and Electrical Engineering, Sungkyunkwan University, since 2013. He received his B.S. (1988) and Ph.D. (1994) degrees in Electrical Engineering from Seoul National University. Dr. Yong-Sang Kim was also a Professor at Myongji University from 1995 to 2013. He had a previous appointment as a Director with the Nano-Bio Research Center (2005-2013); with the BK21 Development of Advanced Materials for Nanostructure Construction (2006-2013); and with the Nano Electronics and System Lab. (2006-2012) as a National Research Lab. (NRL) at Myongji University. His research interests include the design, fabrication and characterization of AMLCD and AMOLED TFT Backplane with a-Si:H TFTs, a-IGZO TFTs, and LTPS TFTs, also through numerical simulation using TCAD and SmartSpice. Another specific topic in his research activities involves the gate scan driver circuit for display backplane and compensation circuit for AMOLED pixel circuit design. Dr. Yong-Sang Kim is currently the Director of the Nano Electronics and Microfluidic Sensor Laboratory (NEMS) at Sungkyunkwan University, where he has several research works focused on oxide TFTs, transistor-based biosensor, organic solar cells and solution-processing technologies for organic electronic devices.