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This book provides a comprehensive and up-to-date guide to the AMOLED technologies and applications which have become industry standard in a range of devices, from small mobile displays to large televisions. Unlike other books on the topic, which cover the fundamentals, materials, processing, and manufacturing of OLEDs, this one-stop book discusses the core components, such as TFT backplanes, OLED materials and devices, and driving schematics together in one volume with chapters written by experts from leading international companies in the field of OLED materials and OLED TVs. It also examines emerging areas, such as micro-LEDs, displays using quantum dots, and AR & VR displays. Presenting the latest research trends as well as the basic principles of each topic, this book is intended for undergraduate and postgraduate students taking display-related courses, new researchers, and engineers in related fields.
Auteur
In Byeong Kang received his B.S. and M.S. degrees in Electronic Engineering from Hanyang University, Seoul, Korea, in 1989 and 1991, respectively. He also received his Ph.D. degree in Electronic Engineering from the University of South Australia in 1998. He subsequently joined LG Display, Korea, as a engineer in 1991, where he worked on the design and characterization of display for various applications such as IT, TV, and Mobile. He served as CTO, executive vice president, in LG Display from 2014 to 2020, leading technology research and development of future flat panel display such as TFTLCD, AMOLED, and flexible display. In particular, he has led development of rollable OLED TV, transparent signage OLED, and 8K UHD OLED TV. He has published more than 30 co-authored international journal papers and 130 international conferences. He has also presented many talks at major display conference including keynote speech. He is a fellow of The Society for Information Display. Now, he is also a regular member of The National Academy of Engineering of Korea.
Chang Wook Han is the head of OLED device technology department as a chief research fellow and a vice president in LG Display, Korea. He obtained his B.S. and M.S. degrees in Material Science from Seoul National University, Korea, in 1987 and in 1989, respectively. He also received Ph.D. degree in Electrical Engineering from Seoul National University, in 2007. The title of his Ph.D. thesis was a-Si:H TFT and pixel structure for AMOLED on flexible metal substrates. Since joining LG Display in 1990, he has worked on the device and process development on a-Si:H TFT backplanes for AMLCD. He has also focused on enhancing the performance of OLED device and developing new OLED panel structure since 1999. In particular, he has led several projects that have developed tandem white OLED and encapsulation technology for TV. He has experienced the successful application of these technologies to the world's first 55-inch OLED TV and transparent OLED products. His research achievements were recognized and he was presented the LG Group's R&D Grand Award, in 2013. He has also developed the innovated white OLED devices to meet the requirement for 4K and 8K OLED TV. Recently, he is in charge of developing TADF, blue phosphorescence, self-emitting QLED, and cultivating new OLED device for AR/VR micro-display. He has published more than 16 authored international journal papers and 30 international patents on flat panel display. He has published 4 authored chapters of book. He has also presented over 20 talks at major display conference including invited talks. He has served The Society for Information Display and International Meeting on Information Display conference as a program committee member on OLED.
Jae Kyeong Jeong received his B.S., M.S., and Ph.D. degrees in material science and engineering from Seoul National University, Seoul, Korea, in 1997, 1999, and 2002, respectively. In 2003, he was a postdoctoral researcher at the University of Illinois at UrbanaChampaign. In 2004, he joined Samsung Mobile Display Corp. as a senior engineer, where he had focused on the design and development of Si and amorphous IGZO TFTs for AMOLED display. In 2008, he successfully developed the world's largest 12.1 Oxide TFT-driven AMOLED display as a project leader. In 2009, he joined Inha University Incheon, Korea, as an assistant professor, where he had continued the oxide semiconductor and related field-effect transistors. Since September 2015, he is with the Department of Electronic Engineering at Hanyang University as a professor. His research group is interested in next-generation display electronics, CMOS TFTs for IoT, stretchable electronics, and emerging semiconductor devices. He has published more than 163 authored (or co-authored) international journal papers and 112 international patents. His total citation number and h-index are 21,498 and 56, respectively, according to the latest scholar google search. Also, he is currently an editorial board member of Scientific Reports and Journal of Information Display.
Contenu
Jae Kyeong Jeong (Professor at Hanyang University)
This review will give an overview of the recent progress in n-type oxide thin-film transistors (TFTs). The strategies toward high mobility will be addressed including the channel composition and structure, which is required to meet the demands of the ultra-high-resolution, large panel size and 3 dimensional visual effects as a megatrend of organic light emitting diodes and flexible displays. The device instability of oxide TFTs will be covered in details, which is critical for their implementation in the real product. The degradation mechanisms for the bias-thermal-stress and light illumination will be summarized including the carrier trapping/injection, defect creations such as oxygen vacancy, oxygen interstitial, hydrogen complex model. Finally, the self-aligned structure will be reviewed including the metallization process, copper interconnection for the AMOLED TV.
- Chapter 2. Pixel circuit of OLED display Kee Chan Park (Professor at Konkuk University)
Each pixel of OLED display needs an analog current source for uniform brightness over a whole display panel. Otherwise, mura due to the deviation of OLED characteristics or image sticking due to the irregular degradation of OLED device might be observed. A thin-film transistor (TFT) biased as subthreshold or saturation mode is used as the analog current source for OLED driving in each pixel. However, the characteristics of TFTs are not uniform at all. Therefore, another mura occurs due to the non-uniform current-voltage characteristics of the TFTs. Various circuit techniques have been proposed and employed in the OLED display product according to the applications. The operating principles of these circuit techniques will be explained, and the pros and cons of several representative circuit structures will be dealt with in this chapter.
- Chapter 3. Phosphorescent OLEDs for power efficient displays
Michael S. Weaver and Tyler Fleetham (UDC)
In this chapter we will discuss phosphorescent OLED (PHOLED) materials and technologies. PHOLEDs are now used in virtually all OLED display products. We will discuss here the history of this technology, the inherent advantages of these materials and th…