Location History:
- Daejeon, KR (1999)
- Daejon-shi, KR (1999 - 2000)
- Daejon, KR (2001)
Company Filing History:
Years Active: 1999-2001
Title: Innovations of Kang Hoon Choi in Electroluminescent Devices
Introduction
Kang Hoon Choi is a prominent inventor based in Daejon, South Korea. He has made significant contributions to the field of electroluminescent devices, holding a total of 4 patents. His work focuses on enhancing the performance and stability of these devices through innovative materials and methods.
Latest Patents
One of his latest patents is titled "Structure of polymeric/organic electroluminescent device using ionomer as charge transport layer and method of making the same." This invention utilizes a polymer made of ionomer containing metal ions as a charge transport layer. The ionomer, which includes an ionized metallic salt, forms a physical cross-linking around the metal, providing excellent mechanical properties and superior thermal stability. The device also demonstrates ion conductivity, which can be controlled by varying the concentration of the substituted ion. This ionomer layer can be easily applied using a spin coating method, significantly increasing the light-emittive quantum efficiency by stabilizing the interface between the electrode and the light-emitting layer. Additionally, this innovation allows for the manufacturing of flexible electroluminescent devices.
Another notable patent is the "Synthetic method of soluble PPV derivatives having two silyl groups." This patent discloses a method for mixing a soluble poly(1,4-phenylenvinylene) (PPV) derivative with two silyl groups. The resulting polymer, poly[2,5-bis(dimethyloctylsilyl)-1,4-phenylenvinylene] (BDMOS-PPV), is easily dissolved in common organic solvents and exhibits a remarkable absolute PL quantum efficiency of 60%, surpassing the conventional PPV's efficiency of 25%. This advancement opens up new possibilities for its application in flexible light-emitting devices.
Career Highlights
Kang Hoon Choi is affiliated with the Electronics and Telecommunications Research Institute, where he continues to push the boundaries of electroluminescent technology. His innovative approaches have positioned him as a key figure in the development of advanced materials for electronic applications.
Collaborations
He has collaborated with notable coworkers, including Lee Mi Do and Sang Don Jung, contributing to the advancement of research in his field.
Conclusion
Kang Hoon Choi
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.