Yoo-Jung Lee

Title: Innovative Contributions of Yoo-Jung Lee in the Field of Light Emission Technologies

Introduction

Yoo-Jung Lee, an accomplished inventor based in Suwon-si, South Korea, has made significant contributions to the field of light emission technologies. With three patents to her name, her work stands at the forefront of advancements in display devices.

Latest Patents

Among her latest patents are developments in white phosphors and light emission devices. Her first patent details a white phosphor that includes a specific formulation of blue, green, and red phosphors. The blue phosphor consists of 40 to 50 parts by weight from compounds like ZnS:(Ag,Cl), ZnS:(Ag,Al), and their combinations. The green phosphor represents 20 to 30 parts by weight of (SrCa)GaS:Eu, while the red phosphor comprises 20 to 30 parts by weight as well from choices like YO:Eu and its variations. This innovative white phosphor can be integrated into light emission devices, which are essential components of liquid crystal display systems.

Her second patent builds on this innovation, presenting a white phosphor, a light emission device, and a display device that incorporates the phosphor. This formulation showcases a slightly different ratio where the blue phosphor comprises 40 to 45 parts by weight, green phosphor contributes 30 to 40 parts, and red phosphor is 20 to 25 parts by weight. Notably, this phosphor exhibits a color temperature ranging from 12,000K to 14,000K, enhancing the quality of light emitted from displays.

Career Highlights

Yoo-Jung Lee currently works at Samsung SDI Co., Inc., where she utilizes her expertise to drive advancements in display technologies. Her focus on phosphor development underscores her commitment to innovation in the electronics field, specifically in applications that improve visual experiences.

Collaborations

Throughout her career, Yoo-Jung has collaborated with talented colleagues, including Yong-Chan You and Jae-Woo Bae, to further enhance her research and development endeavors. These partnerships have contributed to a dynamic atmosphere of creativity and innovation within her team.

Conclusion

Yoo-Jung Lee's contributions to the field of light emission devices, particularly through her patented innovations in white phosphors, exemplify her role as a leading inventor in the industry. Her work not only reflects her individual talent but also emphasizes the collaborative spirit that drives advancements in technology at Samsung SDI Co., Inc.