Company Filing History:
Years Active: 2009
Title: Yasushi Umihira: Innovator in Liquid-Crystal Display Technology
Introduction
Yasushi Umihira is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of liquid-crystal display (LCD) technology. His innovative approach has led to the development of a patented device that addresses common issues in LCD manufacturing.
Latest Patents
Yasushi Umihira holds a patent for a semi-transmissive type liquid-crystal display device and the method of fabricating the same. This invention effectively suppresses the reduction and corrosion of the transmission or common electrode due to cell corrosion reactions. The design features a reflection electrode formed over a glass plate, with an interlayer insulating film and a barrier metal film intervening. The reflection electrode is electrically connected to the transmission electrode via the barrier metal film. Notably, the transmission electrode and its corresponding scanning line are separated by a distance of 2 μm or greater, which prevents developer solutions from reaching the transmission electrode, thereby reducing corrosion.
Career Highlights
Yasushi Umihira is currently employed at NEC LCD Technologies, Ltd., where he continues to advance LCD technology. His work has been instrumental in improving the durability and performance of liquid-crystal displays.
Collaborations
He has collaborated with notable colleagues such as Hideto Motoshima and Kiyoshi Yanase, contributing to the innovative environment at NEC LCD Technologies.
Conclusion
Yasushi Umihira's contributions to liquid-crystal display technology exemplify the impact of innovative thinking in the field. His patented device addresses critical challenges in LCD manufacturing, showcasing his expertise and commitment to advancing technology.