Prof. Sin-Doo Lee
Seoul National University, Republic of Korea
|Title: Constructuion of Quantum Dot Patterns for Advanced Display Applications|
Liquid crystal display (LCDs) have been successfully commercialized owing to their light-weight, thin panel thickness, and low power consumption. Among several characteristics governing the image quality, the color gamut is currently one of the most important issues for the color reproducibility in the LCDs. Toward the improvement of the color gamut, quantum dots (QDs) have been widely exploited because of the color tuning capability, the narrow emission bandwidth, and the high luminescence efficiency. We demonstrate an array of red and green QD patterns in a dispersion matrix of reactive mesogens to enhance the optical efficiency of the QD compensation layer. For the reduction of the band mismatch between the compensation layer and the color filter, we introduce a new configuration of color-separated patterns of the QDs. Our approach has great potential for the enhancement of the optical efficiency in QD-based LC displays with high color gamut.
Sin-Doo Lee is a professor in the School of Electrical Engineering of Seoul National University, Korea. He received his BS and MS degrees in solid-state physics from Seoul National University, Korea in 1980 and 1982, respectively, and his Ph.D. degree in liquid crystal physics from Brandeis University, USA in 1988. Prof. Lee is one of the leading interdisciplinary scientists in physics, optics, and device engineering of soft matters such as liquid crystals, organic semiconductors, polymers, colloids, and biomembranes. He has authored more than 280 scientific publications and delivered over 330 conference presentations. Among his scientific and technical achievements with high reputation worldwide, the most significant contribution to the display technologies is the invention of a new class of the vertical alignment mode which has led to the advent of high-performance liquid crystal displays ranging from monitors to high-definition TVs. Prof. Lee’s achievements in soft matter science and technology have been recognized by many of distinguished members of professional societies including International Liquid Crystal Society, American Physical Society, Optical Society of America, Society for Information Displays (SID), and Society for Photonics and Instrumentation Engineers (SPIE). He has been served as a general chair/co-chair, an organizing committee chair, and a member of the program committee of major scientific societies in the area of displays, including OSA, SPIE, and SID, since early 90's. He is currently a Fellow of OSA, SPIE, and SID. His current research areas include the biological implications of lipid rafts in biomimic lipid membranes, an artificial iris with the self-regulation capability in soft contact lens style, and the applications of nano-colloids in diverse soft matters.