Hoi Sing Kwok

Title: Innovations by Hoi Sing Kwok: A Leader in Liquid Crystal Technologies

Introduction

Hoi Sing Kwok is an accomplished inventor located in Hong Kong, China, with a remarkable portfolio of 52 patents. His work primarily revolves around the advancements in liquid crystal technologies, which have significant implications in various devices, including light detection and ranging (LiDAR) systems.

Latest Patents

Among his latest patents, Kwok has developed techniques utilizing ferroelectric liquid crystals Dammann grating for light detection and ranging devices. This innovation addresses several limitations faced by LiDAR devices, such as accuracy and response time. By leveraging the high switching speed and low driving voltage characteristics of ferroelectric liquid crystals combined with the equal diffracting ability of Dammann grating, his architecture enhances LiDAR performance, allowing for one-shot capturing.

Another notable patent involves a composite photoalignment layer designed for aligning liquid crystal molecules. This invention includes a blend of monomeric materials, photoinitiators or thermal initiators, and azo dye materials, which are coated onto a substrate. The method involves exposing the thin film to polarized light and using thermal initiators to polymerize the monomeric material into a solid thin film, maximizing the alignment efficiency of liquid crystal molecules.

Career Highlights

Kwok has rendered significant contributions while working at prominent institutions. He has been associated with the Hong Kong University of Science and Technology, where he has engaged in groundbreaking research and development. Additionally, he has worked with Varintelligent Limited, further broadening his expertise in the field of liquid crystal technologies.

Collaborations

Throughout his career, Hoi Sing Kwok has collaborated with notable professionals, including Vladimir Grigorievich Chigrinov and Abhishek Kumar Srivastava. These collaborations have enriched his work and led to numerous advancements in liquid crystal research.

Conclusion

Hoi Sing Kwok stands out as a key figure in the realm of liquid crystal inventions, exemplified by his impressive collection of patents. His innovations not only enhance the functionality of existing technologies but also pave the way for future developments in the field. As an inventor, Kwok continues to push the boundaries of science and technology, contributing to the advancement of liquid crystal applications.