SID's five Short Courses offer a thorough introduction to topic fundamentals for students, scientists, and engineers looking to expand their technical breadth into a new area. The four-hour Short Courses differ from SID's 20-minute Symposium talks and 90-minute Seminars, which generally focus on the latest developments in specific technical areas, adding technical depth.

S-1

S-1: Fundamentals of TFTs for Active-Matrix Displays

Hsing-Hung Hsieh

Senior Display Architect
HP Inc

Hyun Jae Kim

Professor
Yonsei University

Hsing-Hung Hsieh will describe the fundamentals of thin-film transistors (TFTs) and how they work as the most essential element in active-matrix displays. The course will introduce material concepts, device architectures, fabrication processes, and display applications for oxide TFTs. It will also touch on various TFT technologies such as a-Si, LTPS, oxide, and organic, and discuss their pros and cons. Applications of TFTs on LCD, OLED, and flexible displays will also be covered.

Hyun Jae Kim will describe in detail the technology trends in materials and processes and the various applications of TFTs. Low-temperature polysilicon (LTPS) TFT and oxide TFT in particular will be the main subjects of this part of the course. Furthermore, the course will provide a basic understanding of emerging LTPO (LTPS +oxide, Apple) or HOP (hybrid oxide and polycrystalline Si, Samsung) or MTO (multi TFT on same substrate for OLED, LG) technologies. The subject of flexible and stretchable TFT technologies for OLED displays and future possible TFTs for microLED displays will also be covered

Hsing-Hung Hsieh is the senior display architect of HP Inc., where he investigates new display technologies and defines display strategies for commercial PCs. He received his Ph.D. in electronic engineering from National Taiwan University, where, in 2003, he was one of the first to devote research to oxide TFT. Before HP, he was a manager of AU Optronics, kicking off oxide TFT and restarting the AMOLED program. He has also been an R&D director at Polyera, managing multinational research activities on flexible TFT devices and AMOLED displays. He is a member of the Display Week program committee and a former chair of the AMD subcommittee. Hsieh was recognized in 2019 with SID’s Peter Brody Prize for his contributions to oxide TFT and AMOLED.

Hyun Jae Kim is a professor affiliated with the school of electrical and electronic engineering at Yonsei University in Seoul, Korea. He received his Ph.D. in materials science and engineering at Columbia University in 1996. Previously, he was employed as a senior researcher at Samsung Electronics and conducted research and development related to LTPS-TFT technology. Furthermore, he contributed his research to the initial commercialization of mobile high-resolution LC and OLED display products. Ever since, his research has been focused on various electronic devices such as oxide TFTs, biosensors, photosensors, ReRAMs, and energy storage devices, with about 230 research papers published over a period of 20 years.

S-2

S-2: Fundamentals of Display Metrology

Dr. Reto Häring

Vice President Customer Solutions
Instrument Systems GmbH

Yutaka Maeda

Business Development Lead
Konica Minolta

Jens Jørgen Jensen

Vice President of Product Development
Radiant Vision Systems

With so much of a device’s value in its display, investment in display development and manufacturing is high, and accuracy and efficiency are critical. Display metrology provides an objective understanding of a display’s quality and performance through data, supplying tools for innovation and evaluation to safeguard manufacturing investment. Display metrology employs scientific methods and equipment to capture and assess quantitative values of a display’s output such as luminance, color, uniformity, and contrast. Display test systems range in their function, application, and unique advantages, and are rapidly evolving to address measurement for never-before-seen display types, shapes, and integrations. This short course will provide a fundamental understanding of display metrology and introduce measurement equipment and techniques from leaders in the field. Topics include the science of light and color, units of measurement, measurement standards, metrology systems from spot meters to imaging equipment, test methods to address display performance parameters from mura to pixel uniformity to flicker, and the latest metrology solutions for testing emerging displays from microLED to AR/VR devices.

Reto Häring joined Instrument Systems in 2010 as head of metrology. During his career with the company, he has led the R&D department and built a business unit for industrial applications. Today he leads product management, marketing, and application engineering, which together strive to provide the best customer solutions. He graduated in physics at ETH in Switzerland and received a Ph.D. with research activities related to short-pulsed, high-frequency lasers based on VCSELs.

Yutaka Maeda joined Konica Minolta in 2013, where he started his career as an R&D engineer. After developing several instruments for display measurement, he took on a role in application engineering and business development to implement solutions for the company’s major customers in the display industry. He graduated from Kyoto Institute of Technology and received a master’s degree in mechanical engineering.

Jens Jensen directs the product development teams responsible for camera hardware, firmware, product software, calibration software, and fixtures at Radiant Vision Systems. Jensen received a master’s degree in mechanical engineering from the Technical University of Denmark. He spent the next 23 years making measurement systems as the technical lead of the DANAK accredited photometric and colorimetric laboratory in Denmark, and afterward joined Radiant, where he has contributed significantly to the company’s engineering development in photometric and colorimetric imaging and analysis.

S-3

S-3: AI and Machine Learning for Displays: Introduction, Theory, and Applications

Won-Hyouk Jang

Master (Research VP)
Samsung Display Research Center

Yongjo Kim

Vice President and Leader of CAE Team
Samsung Display

This short course explains the effective design optimization of displays with simulation-based AI. Representative examples are provided in which the presenters have applied simulation-based AI technology in the field of displays. The first part of the course, from Dr. Won-Hyouk Jang, covers the general theory of AI for displays. The second part, from Dr. Yongjo Kim, covers the combination of simulation and AI for design application to discover new materials, and to aid in backplane and module design in order to realize high-performance organic light-emitting diode displays.

Dr. Won-Hyouk Jang is master (research VP) of the Samsung Display Research Center, where he currently leads a number of machine learning and deep learning projects for display manufacturing, including visual inspection, low-yield analysis, fault diagnosis, process control and monitoring, and process and panel design optimization. He has worked at Samsung Display since 2012. Before that he worked at Samsung Mobile Display from 2009 to 2012, and at Samsung SDI from 2004 to 2008. He received B.S. and M.S. degrees in chemical engineering from Hanyang University in Korea, and his Ph.D. in chemical engineering from Texas A&M University.

Yongjo Kim is vice president for computer-aided engineering (CAE) at Samsung Display. Prior to holding this position, he served as a principal engineer for CAE at Samsung and also as a senior engineer for LCD design and process architecture. His experience and expertise include simulation and artificial intelligence (AI) for materials, devices, process, circuits, and mechanics for LC and OLED displays. His current work is focused on smart design with simulation and AI. He has a Ph.D. in materials science and engineering from Seoul National University in Seoul, Republic of Korea.

S-4

S-4: Fundamentals of OLEDs and Applications

Björn Lüssem

Associate Professor of Physics
Kent State University

Seunghyup Yoo

School of Electrical Engineering
KAIST

Organic light-emitting diodes (OLEDs) are nowadays used widely for high-end displays in small mobile electronic devices as well as in large TV sets, and they are a topic of discussion for future lighting applications. This short course will provide a thorough background in OLED technology, introducing its current trends and remaining challenges. The instructors will cover the fundamentals of organic semiconductors, such as a description of charge-transport mechanisms in organic semiconductors and the generation and transport of excitons in organic thin films. The different functional layers of highly efficient OLEDs will be discussed, emphasizing key technologies such as injection-enhancement methods and phosphorescent or thermally activated delayed fluorescence (TADF) emitters harvesting triplet excitons. Various strategies to optimize the device structure for high efficiency are also presented. The influence of the optical cavity in OLEDs on photon emission and outcoupling will be thoroughly described, leading to a complete description of the essential physics of OLEDs and their engineering strategies.

Björn Lüssem is an associate professor of physics at Kent State University. Before joining Kent State in 2014, he was a project leader for the Materials Science Laboratory of Sony in Stuttgart and group leader at the Institut für Angewandte Photophysik (IAPP), TU Dresden. Lüssem has authored more than 130 publications in international journals (h-index > 40). His research interests range from new design principles of organic devices to charge transport in organic semiconductors and novel organic semiconductors with improved performance. His work has been awarded the VDE-Promotionspreis and the Günther-Leibfried-Preis.

Seunghyup Yoo received his B.S. and M.S. degrees in physics from Seoul National University, Seoul, Korea, in 1996 and 1998, respectively, and his Ph.D. in optical sciences from the University of Arizona, Tucson, in 2005 for his work on organic thin-film solar cells based on pentacene/C60 heterojunctions. From 2005 to 2006, he was a post-doctoral researcher at the School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, where he worked on various organic optoelectronic devices. Since August 2006, he has been with the School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, where he is currently a KAIST Endowed Chair Professor. His primary research interests include the development of novel device architecture and processes for organic electronics and photonics in the area of display/lighting, energy, and flexible electronics.

S-5

S-5: MicroLED Displays: Fundamentals and Challenges

Ioannis (John) Kymissis

Kenneth Brayer Professor of Electrical Engineering
Columbia University

MicroLED technologies unlock the potential for LEDs to serve as active-emissive display elements at the pixel level, allowing for development of displays with extraordinary performance, including otherwise unavailable levels of contrast, luminance, and color gamut. This short course will discuss the basics of LEDs and the strategies that have been developed for monolithic, nanowire, and pick-and-place microLED approaches. Several recently announced products and technical perspectives on the expectations for the impact of microLEDs on direct-view, flexible, stretchable, AR, VR, and non-display technologies will also be discussed.

Ioannis (John) Kymissis is the Kenneth Brayer Professor of Electrical Engineering at Columbia University. He graduated with his SB, M.Eng., and Ph.D. degrees from MIT. His M.Eng. thesis was performed as a co-op at the IBM TJ Watson Research Lab on organic thin-film transistors, and his Ph.D. was obtained in the Microsystems Technology Lab at MIT, working on field-emission displays. He joined the faculty at Columbia University in electrical engineering in 2006 as an assistant professor. Kymissis has won a number of awards for his work, including the NSF CAREER award, the IEEE EDS Paul Rappaport award, the Vodaphone Americas Foundation Wireless Innovation Award, the MIT Clean Energy Prize, and a Verizon Powerful Answers award. He is a fellow of the SID.