Chan-Joo Youn

Title: Innovations of Chan-Joo Youn in Liquid Crystal Display Technology

Introduction

Chan-Joo Youn is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of liquid crystal display (LCD) technology. With a total of 3 patents to his name, Youn's work has been instrumental in advancing the efficiency and functionality of TFT LCDs.

Latest Patents

One of Chan-Joo Youn's latest patents is a method for forming a thin-film transistor (TFT) in a liquid crystal display. This innovative approach involves creating a double level gate layer with an undercut lower gate layer. The method utilizes the etching rate difference between the upper and lower gate layers in a polycrystalline silicon type TFT LCD that incorporates both P-channel and N-channel TFTs. An LDD (lightly doped drain) structure can be easily formed by using the upper gate layer as an ion implant mask during N-type ion implantation. The size of the LDD is determined by the skew size between the upper and lower gate layers. Notably, this method allows for the elimination of a photolithography step that is typically necessary for masking the ion implantation.

Career Highlights

Chan-Joo Youn is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate in the field of display technology. His work has not only contributed to the company's advancements but has also set new standards in the industry.

Collaborations

Throughout his career, Youn has collaborated with notable colleagues, including Mun-Pyo Hong and Byung-Hoo Jung. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Chan-Joo Youn's contributions to liquid crystal display technology exemplify the impact of innovative thinking in the field of electronics. His patents reflect a commitment to enhancing display performance and efficiency.