Flat panels of Liquid Crystal Displays are becoming the dominant displays in virtually all aspects of our life, providing an important bridge between human beings and computers/machines. This is a result of great success in several enabling technology areas. These include liquid crystal materials useful over a large temperature range, thin film transistors (TFT), large area birefringent thin films, large area sheet polarizers, etc. In this talk, the author will briefly review the technology development of liquid crystal displays. This is followed by a discussion of the possibility holographic display of 3D video images using liquid crystal panels. Many of the fundamental issues and limitations will be presented and discussed.
Pochi Yeh obtained his B.S. in Physics from National Taiwan University and his Ph.D. in Physics from Caltech. Before joining the ECE faculty as a Professor at UC Santa Barbara in 1989, Dr. Yeh was the Principal Scientist of the Optics Department and Acting Manager of Applied Optics Group at Rockwell Science Center in Thousand Oaks. Dr. Yeh is known for several important contributions in optics and photonics. These include his pioneering work on the theory and application of periodic stratified media (also known as photonic crystals), as well as several important optical and photonic devices such as birefringent thin film compensators for liquid crystal displays. Dr. Yeh and his coworkers are responsible for the development of a matrix method for optics of layered media, an extended Jones matrix method for liquid crystal displays as well as the development of a theory of wave mixing in nonlinear optical media. His classic paper on layered media entitled, "Electromagnetic Propagation in Periodic Stratified Media: I. General Theory" (with A. Yariv, C.S. Hong, J. Opt. Soc. Am. 67, 423, 1977) has been cited several hundred times. This classic paper is one of the most-cited papers in the Journals published by Optical Society of America. Dr. Yeh introduced the concept of photonic bands and bandgaps in this article as early as 1977. In the area of applications, he is the originator of several new photonic device concepts, including photonic crystal waveguides, Bragg fibers, thin film compensators for viewing angle improvement in liquid crystal displays (LCDs), as well as various birefringent filters for strategic laser communications. Dr. Yeh was named "Engineer of the Year," at Rockwell Science Center and received the Leonardo da Vinci Award in 1985. He is a Fellow of the Optical Society of America (OSA), the Institute of Electrical and Electronics Engineers (IEEE). Dr. Yeh received the Rudolf Kingslake Medal and Prize from the International Optical Engineering Society in 1989, Pan Wen Yuan outstanding research award in 2010, Outstanding Scholar Award in 2010. He is the author and co-author of over four hundred technical papers, thirty US patents and the following five textbooks: "Optical Waves in Crystals," (with Amnon Yariv, Wiley, 1984), "Optical Waves in Layered Media," (Wiley, 1988), "Introduction to Photorefractive Nonlinear Optics," (Wiley, 1993), "Optics of Liquid Crystal Displays," (with C. Gu, Wiley, 1st edition 1999, 2nd edition 2010), and "Photonics: Optical Electronics in Modern Communications, 6-th Edition," (with Amnon Yariv, Oxford, 2006). Several of these textbooks have been translated into Russian, Japanese and Chinese. Dr. Yeh's current research interest includes thin film optics, nonlinear optics, holography, display optics, polarizers and birefringent media, optical communications, fundamental optical properties of photonic crystal structures and nano-structures.