Sangrok Lee

Title: Innovations by Inventor Sangrok Lee

Introduction

Sangrok Lee is a notable inventor based in Durham, NC (US). He has made significant contributions to the field of liquid crystal display technology. With a total of 3 patents to his name, his work focuses on enhancing display performance and efficiency.

Latest Patents

One of Sangrok Lee's latest patents is a frame buffer pixel circuit for liquid crystal displays. This innovative circuit features two control transistors and a separate capacitor used as a memory capacitor before the memory transistor. This design yields a high contrast ratio by effectively removing induced charge and addressing the charge sharing problem between the memory capacitor and the liquid crystal display (LCD) capacitor. The memory transistor can be constructed using either CMOS or PMOS technology. Additionally, this frame buffer pixel circuit can drive binary displays, which express ON and OFF states. When a comparator is integrated after the pixel electrode circuit, it allows for the representation of gray levels with a reduced sub-frame frequency.

Career Highlights

Sangrok Lee is affiliated with Duke University, where he continues to advance his research and development in display technologies. His work has garnered attention for its innovative approach to solving complex problems in the field.

Collaborations

Some of his notable coworkers include Kristina M Johnson and James C Morizio. Their collaborative efforts contribute to the ongoing research and development initiatives at Duke University.

Conclusion

Sangrok Lee's contributions to liquid crystal display technology exemplify the impact of innovation in enhancing visual performance. His patents reflect a commitment to solving industry challenges and advancing display technology.