Company Filing History:
18 out of 12,618 
1 out of 832,680 Years Active: 2014-2025
Title: Innovations of Hong-Seok Choi: A Pioneer in Organic Light Emitting Devices
Introduction
Hong-Seok Choi is a prominent inventor based in Seoul, South Korea, known for his significant contributions to the field of organic light emitting devices. With a remarkable portfolio of 18 patents, Choi has established himself as a leading figure in the advancement of display technology.
Latest Patents
Among his latest innovations is an organic light emitting display device that comprises a first electrode and a second electrode positioned on a substrate opposite one another. This device features a first stack, which includes a hole injection layer, a first hole transport layer, a first light emitting layer, and a first electron transport layer stacked sequentially on the first electrode. Additionally, a second stack containing a second hole transport layer, a second light emitting layer, and a second electron transport layer is situated between the first stack and the second electrode. A charge generation layer is also incorporated, balanced through N-type and P-type charge generation layers to enhance efficiency.
Another noteworthy patent is the organic light emitting device and display device that enhances luminous efficacy. The light emitting layer of this device includes a host material combined with various dopants, including a fluorescent dopant designed to facilitate thermally activated delayed fluorescence (TADF). This characteristic allows for the concentration of energy transfer to the fluorescent dopant, significantly increasing the luminous output of a single color.
Career Highlights
Throughout his career, Hong-Seok Choi has worked with notable companies such as LG Display Co., Ltd. His work has critically influenced the development of advanced display technologies, paving the way for more efficient and brighter screens.
Collaborations
Choi has collaborated with talented individuals in the field, including Chang-Wook Han and Seung-Ryong Joung. These collaborations have undoubtedly contributed to his innovative projects, allowing for a pooling of knowledge and expertise that fuels cutting-edge advancements.
Conclusion
Hong-Seok Choi continues to be a pivotal inventor in the domain of organic light emitting devices. His extensive portfolio demonstrates his commitment to innovation and excellence in display technology. As his career progresses, Choi is expected to unveil even more groundbreaking inventions that will shape the future of visual technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.