Kwi-seok Choi

Title: The Innovations of Kwi-seok Choi

Introduction

Kwi-seok Choi is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of display technology and electron tubes, holding a total of five patents. His work has been instrumental in advancing the efficiency and longevity of electronic devices.

Latest Patents

One of Kwi-seok Choi's latest patents is a plasma display device with a ferroelectric dielectric layer. This innovative plasma display panel features front and rear substrates, anodes arranged in a stripe pattern, and a lower electrode that covers the entire facing surface of the rear substrate. The dielectric layer, which coats the lower electrode, is complemented by an upper electrode in a specific pattern. The design includes a lattice of partition walls that separate the upper electrode from the front substrate, allowing the portions of the dielectric layer between the partition walls to form individual pixels. This configuration minimizes sputtering and reduces damage to the electrodes from gas exposure, thereby extending the product's lifespan. The ferroelectric material used in the lower electrode exhibits excellent resistance to discharge gas, enabling the discharge to initiate with a low initial voltage due to the cathode's ability to provide sufficient electrons.

Another notable patent is for a cathode designed for electron tubes. This cathode comprises a layer of electron-emitting substances that contain alkaline earth metal oxides, along with a lanthanum compound and a magnesium compound. The base metal primarily consists of nickel, with tungsten as a minor component. The inclusion of tungsten prevents embrittlement and ensures a continuous supply of barium in the electron-emitting substance. This cathode is fully interchangeable with conventional oxide cathodes and boasts a lifespan that is 15-30% longer.

Career Highlights

Kwi-seok Choi has worked with leading companies in the technology sector, including Samsung Display Devices Co., Ltd. and Samsung SDI Co., Inc. His experience in these organizations has allowed him to contribute to groundbreaking advancements in display technologies and electron emission systems.

Collaborations

Throughout his career, Kwi-seok Choi has collaborated with notable colleagues, including Jong-seo Choi and Gyu-nam Ju. These partnerships have fostered an environment of innovation and creativity, leading to the development of cutting-edge technologies.

Conclusion

Kwi-seok Choi's contributions to the fields of