Tsuyoshi Sunagawa

Title: Tsuyoshi Sunagawa: Innovator in Liquid Crystal Display Technology

Introduction

Tsuyoshi Sunagawa is a notable inventor based in Suwa, Japan. He has made significant contributions to the field of liquid crystal display (LCD) technology. His innovative work has led to the development of a unique color filter that enhances the performance of LCD devices.

Latest Patents

Sunagawa holds a patent for a color filter for liquid crystal display devices. This invention includes an optically transparent substrate, a transparent conductive layer, and a color layer with red, green, and blue pixels arranged in a predetermined pattern. The color layer consists of pigments for coloring and transparent conductive particles with a hydrophobic surface. The transparent conductive particles make up between 5% to 50% by volume of the color layer. The specific resistivity of the color layer ranges from 10^-1 Ω·cm to 10⁸ Ω·cm. The production process involves forming the transparent conductive layer, preparing a micelle colloid dispersion, and carrying out electrolysis to deposit the color layer.

Career Highlights

Sunagawa is associated with Seiko Epson Corporation, a leading company in the technology sector. His work has been instrumental in advancing the capabilities of LCD technology, making it more efficient and effective for various applications.

Collaborations

He has collaborated with notable coworkers, including Yoshihiro Ohno and Hiroshi Kiguchi. Their combined expertise has contributed to the success of their projects and innovations in the field.

Conclusion

Tsuyoshi Sunagawa's contributions to liquid crystal display technology through his innovative patent demonstrate his commitment to advancing the field. His work continues to influence the development of more efficient display technologies.