Optimal Design of Microstructures on Light Guides

The purpose of study is to investigate the light sources of the liquid crystal displays (LCDs) (a.k.a. optical backlight design) where the key component is the light guide. The most challenging part of this research is to design a microstructure random distribution on the light guide that meets the requirements of equal luminance. The random arrangement is needed to eliminate visual defects that are known as the Moiré effect. Furthermore, optimal distribution can be achieved by iteratively adjusting the arrangement based on feedback.

We have also developed a new algorithm, based on the molecular dynamics method, and integrated it into the optical design. The results of this research have been published in the Journal of Applied Physics (JAP), Journal of the Optical Society of America A (JOSA A) and the Computer Physics Communication (CPC). Also, we have been involved in several projects for local industry and have applied for several patents.