Chang-Je Sung

Title: Innovative Contributions of Chang-Je Sung in Organic Light Emitting Devices

Introduction

Chang-Je Sung, an accomplished inventor based in Goyang-si, South Korea, has made significant strides in the field of organic light emitting devices (OLEDs). With a total of two patents to his name, his work focuses on enhancing the performance and efficiency of lighting technologies.

Latest Patents

Chang-Je Sung's latest innovations include two prominent patents related to white organic light emitting devices. The first patent details a device designed to achieve reduced driving voltage and enhanced color stability under high luminance conditions. This invention features an anode and cathode placed opposite each other on a substrate, a charge generation layer positioned between these electrodes, and a unique dual-stack configuration comprising a first and a second light emitting layer. The innovation particularly highlights the difference in the higher energy levels of the first host compared to the second host, aiming to optimize light emission efficiency.

The second patent covers a white organic light emitting device and a manufacturing method that enhances light emitting efficiency without the need for an additional exciton blocking layer. This patent outlines components similar to the first, including a hole transport layer with a carefully adjusted energy level and a phosphorescent light emitting layer designed to prevent color shifts. The intricacies of this design involve a dual stack structure that emits blue light alongside red and green phosphorescence, showcasing Chang-Je’s innovative approach to optimizing OLED technologies.

Career Highlights

Throughout his career, Chang-Je Sung has been associated with LG Display Co., Ltd., a leading firm in the field of display technologies. His contributions to the development of organic light emitting devices have positioned him as a notable figure in the industry, driving advancements that refine the visual quality and performance of display products.

Collaborations

Chang-Je has collaborated with esteemed colleagues such as Sung-Hoon Pieh and Jeong-Dae Seo. Together, they have worked within LG Display Co., Ltd., fostering a dynamic environment for innovative research and development. Their combined expertise has significantly impacted the company's efforts in enhancing OLED technology.

Conclusion

In summary, Chang-Je Sung’s inventive work in the realm of white organic light emitting devices illustrates his commitment to improving lighting technologies. With his two patents, he has contributed to achieving greater efficiency and color stability in OLEDs, reflecting the innovative spirit of his career at LG Display Co., Ltd. His collaborations further enhance the potential for future advancements in this exciting field.