Short Courses

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.

This year, SID is also offering AM/PM sessions on Display Metrology. Those focused on AR/VR may wish to combine morning Short Course 3, Design of Waveguides for Augmented-Reality Displays, with the afternoon Display Metrology session, which focuses on AR/VR.

2022 Short Course Chair: Neetu Chopra


S-1

Room: LL21ABC


Time: 9:00 am – 1:00 pm

 

S-1: Fundamentals and Applications of TFTs

Jae Kyeong Jeong
Professor

Hanyang University
Seoul, Korea

Joon Seok Park

Principal Engineer
Samsung Display
Seoul, Korea

The first half of the course, presented by Jae Kyeong Jeong, will cover the fabrication process and basic device physics for thin-film transistors (TFTs). The main focus will be the rationale of material design, device architectures, and performance improvement for oxide TFTs. The core unit process and integration of well-established LTPS TFTs will be also described. In particular, the pros and cons for both LTPS and oxide TFTs will be discussed, which will provide a background for a description of emerging LTPO technology. Finally, the mechanisms responsible for device instabilities, such as carrier trapping, hot carrier injection, and joule heating, will be covered. Joon Seok Park will present the second part of the short course, designed especially for beginners in the field, which covers the basic functions of thin-film transistors (TFTs) in active-matrix displays. The presentation will include simple descriptions of how liquid-crystal display (LCD) and organic light-emitting diode (OLED) pixels work, as well as the types of TFT devices required for different products. A brief survey on TFTs, incorporating low-temperature polycrystalline silicon (LTPS) and oxide semiconductors, will be provided, along with typical device degradation mechanisms under specific operating conditions. The most commonly encountered consumer products that take advantage of the benefits of LTPS and oxide TFTs will be presented as well.

Jae Kyeong Jeong is a professor affiliated with the department of electronic engineering at Hanyang University in Seoul, Korea. He received his B.S. and Ph.D. degrees in material science and engineering from Seoul National University, Seoul, Korea, in 1997 and 2002, respectively. He achieved pioneering research results in the field of oxide TFTs as a project leader at Samsung SDI, where the world’s largest 12.1-in. oxide TFT-driven AMOLED display was demonstrated in 2008. Since then, his research has focused on novel devices including oxide TFTs, flexible electronics, CMOS TFTs, and NAND. He has authored more than 175 SCI journal papers and holds 112 international patents. He is a member of the National Academy of Engineering of Korea (NAEK), and an editorial board member for Scientific Reports and the Journal of Information Display. He has received many awards, including the Merck Young Scientist Award (2012) and the President Award from KDIA (2014).

Joon Seok Park is currently a principal engineer at the R&D Center of Samsung Display, Inc. He obtained his B.S. at KAIST in 2003, and a Ph.D. at Stanford University in 2008, all in materials science and engineering. After beginning his professional career as a senior engineer at the Samsung Advanced Institute of Technology (SAIT), where he took part in the early stages of oxide-TFT research, he joined the Samsung Display LCD business in 2013 to contribute to the mass production of the first LCD monitors based on IGZO-TFT backplanes in 2014. He later joined the R&D Center in 2015, where he has since committed himself to the development of top-gate oxide-TFT backplanes for large-size AMOLEDs. He currently leads a group of one dozen highly qualified engineers.

Moderators: Jae Kyeong Jeong and Joon Seok Park.

S-2

Room:LL21ABC


Time: 3:00 – 7:00 pm

 

S-2: OLEDs: From Fundamentals to Applications

Seunghyup Yoo

Professor
KAIST
Daejeon, Korea

Caroline Murawski

Junior Research Group Leader
Kurt Schwabe Institute for Measuring and Sensor Technology
Waldheim, Germany

Organic light-emitting diodes (OLEDs) have established themselves as key light sources for high-end displays in mobile electronic devices as well as large TV sets. Near-ideal visual characteristics such as vivid color representation and the ability to express true black for high contrast ratio are among the advantages of OLEDs that make them stand out among several competing technologies. Even with such inherent benefits, however, the success of OLED technologies has required a significant deal of engineering effort in many different aspects. This short course will provide fundamentals needed to understand OLED technology and present some of the key efforts and breakthroughs that have made OLED technologies what they are today. OLED’s current trends and remaining challenges will also be discussed from the perspectives of the major applications. This short course will cover the fundamentals of organic semiconductors, such as 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 are 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 is described, leading to a complete description of the essential physics of OLEDs and their engineering strategies. From the application standpoint, fabrication technologies of OLED displays will be introduced and methods to realize true black and thus high-contrast-ratio displays will also be presented.

Seunghyup Yoo received his B.S. and M.S. degrees in physics from Seoul National University, Seoul, Korea, in 1996 and 1998, respectively, and a Ph.D. degree 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 and the director for KAIST Samsung Display Research Center. 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.

Caroline Murawski is a junior research group leader at Kurt Schwabe Institute for Measuring and Sensor Technology Meinsberg e.V., Germany. She received a Ph.D. in physics from the University of Technology Dresden, Germany, in 2015, working on excitonic processes in organic light-emitting diodes. Subsequently, she performed postdoctoral research under a Marie Curie fellowship at the University of St Andrews, UK. Her research is dedicated to implementing organic semiconducting materials into tailored devices for new applications in biophotonics and medicine.

Moderators: Seunghyup Yoo and Caroline Murawski

S-3

Room: LL21DEF


Time: 9:00 am – 1:00 pm

S-3: Design of Waveguides for Augmented-Reality Displays

Eric Fest

Optical Scientist
Meta Platforms
Redmond, WA
 

This course will introduce the basics of designing diffractive waveguides for augmented-reality (AR) displays. Course topics will include an overview of widely used architectures for AR displays, an introduction to the performance metrics used to describe them, a review of the basic physics (such as the operation of diffraction gratings and photometric units) necessary to design AR waveguides, an introduction to the three basic steps in waveguide design, and examples of how to perform these steps to design both surface-relief-grating-based and volume-bragg-grating based waveguides. These steps will be demonstrated using VirtualLab, a commercially available optical design tool. This course will also discuss waveguide fabrication techniques and the test equipment used to measure waveguide performance.


Eric Fest is an optical scientist at Meta Platforms in Redmond, WA, where he leads the Augmented Reality Product Waveguide Design team. He’s also an adjunct associate professor at the University of Arizona. He has 29 years of experience in the optics industry, and his former employers include Raytheon and Synopsys, Inc. He’s the author of the SPIE best-selling book Stray Light Analysis and Control. He has a Ph.D. in optics from the University of Arizona.


Moderator: Neetu Chopra

S-4

Room: LL21DEF


Time: 3:00 – 7:00 pm

 

S-4: Fundamentals of Foldable Displays

Sung-Chan Jo

EVP for Advanced Research Team
Samsung Display
Yongin-si, Korea

Soyeon Jung 

Principal Engineer
Samsung Display
Yongin-si, Korea

In this course, Sung-Chan Jo will describe how displays, which have become a crucial part of modern life, must evolve as the 4th industrial revolution comes within reach. Newer generations have become accustomed to communicating with each other in more artistic, symbolic, and suggestive ways. Such tendencies have redefined the ecosystems of internet-based social network services, and service providers have been pushed into building up multimedia platforms. Meanwhile, mainstream displays remain in classical shapes, with the exception of public information displays, which have become brighter and larger in order to display commercial and public information outdoors, but even this change only involves flat and wide-area surfaces. This form-factor limitation must be overcome in order to provide easier access to 4th industrial revolution multimedia platforms. The hows and whats of making this come about will be discussed in this section. In her section of the course, Soyoun Jung will describe how flexible display technology is different from conventional display technology and how flexible displays are evolving. Unlike conventional displays, flexible displays are based on technologies that can create a variety of designs such as bendable, foldable, or rollable. Flexible products are now evolving from curved to bendable/foldable/rollable to stretchable. Flexible displays are growing in various fields such as automotive as well as TVs and smartphones. Jung will mainly introduce the technologies such as structural optimization that are necessary to implement a foldable display. 

Sung-Chan Jo is a corporate EVP leading the Advanced Research Team at Samsung Display. In this capacity, he has been in charge of research activities that turn abstract concepts into reality, giving birth to new form-factors and theories for display products, since 2017. Before this assignment, he led the analytical engineering department for 10 years. Prior to joining Samsung, he was manager of the mass spectrometry labs at the Center for Biomarker Analysis, where his research covered the mechanism of biosensors under the supervision of Dr. David C. White of the University of Tennessee. Jo has a Ph.D. in analytical chemistry from Purdue University.

Soyoun Jung is a principal engineer at Samsung Display’s Advanced Research Team and has been in charge of developing various foldable products such as single-foldable, multi-foldable and slidable displays since joining the company 2012. In particular, she is focusing on developing foldable OCA and optimizing the stacked structure in foldable display modules. Before joining the company, she was a research professor at the University of Arkansas and developed OTFTS and sensors. She received a Ph.D. in electrical engineering from Arkansas University.

 

Moderators: Soyoun Jung and Sung-Chan Jo

S-5

Room: LL20BC


Time: 9:00 am – 1:00 pm

 

S-5: Smart Design for Display Applications with Simulation-Based AI

Yongjo Kim

Vice President, Computer-Aided Engineering and Design
Samsung Display
Gyeonggi-do, Korea

Seungin Baek

Vice President, Computer-Aided Engineering
Samsung Display
Gyeonggi-do, Korea

 

This short course was developed to promote the global optimization of display design. Its authors will explain advanced applications for display design with simulation-based AI, following up last year's short courses focused on general introduction and theory. The authors refer to this advanced display design with AI as “smart design.” The first part of the course, presented by Yongjo Kim, describes the discovery of smart design for OLED materials. The second part, presented by Seungin Baek, covers smart design for display panels with new form factors. 

 

Yongjo Kim is vice president and leader of the CAE (computer-aided engineering) team and Design Research Lab at Samsung Display. His main areas of focus are simulation and AI (artificial intelligence) for materials, devices, processes, circuits, and mechanics of OLED/LC displays. Prior to his current position, he served as vice president for Samsung Display: Computer Aided Engineering, from 2017 to 2020. Earlier, he was a principal engineer for Samsung Display: Computer Aided Engineering, from 2010 to 2017, and a senior engineer for Samsung Display: LCD Design & Process Architecture, from 2004 to 2010. He holds Ph.D., M.S, and B.S. degrees in Materials Science & Engineering from Seoul National University.

 

Seungin Baek is vice president of the CAE (computer-aided engineering) team at Samsung Display.  His expertise is in simulation and computational technology for displays and artificial intelligence for the design and fabrication of displays. He currently focuses on TFT/OLED device simulation and the theoretical analysis of optical structures and image perception. Prior to his current position, he was a principal engineer for Samsung Display: Computer Aided Engineering, from 2012 to 2021, and a senior engineer for Samsung Display: Optical Design for LCD/OLED/LED, from 2006 to 2012. He has Ph.D., M.S., and B.S. degrees in electrical and computer engineering from Seoul National University.

 

Moderators: Yongjo Kim and Seungin Baek