Tae Yoshikawa

Title: Tae Yoshikawa: Innovator in LCD Technology

Introduction

Tae Yoshikawa is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of liquid crystal display (LCD) technology. With a total of five patents to his name, Yoshikawa has made notable advancements that enhance the performance and manufacturing processes of LCD devices.

Latest Patents

One of Yoshikawa's latest patents is for an LCD device that features a smaller level difference. This innovation involves a TFT substrate with an array of pixel electrodes defined by multiple signal and scanning lines. Each terminal of the scanning lines includes a first metallic pattern, a second metallic pattern in contact with the first through a via hole, and an ITO pattern in contact with the second metallic pattern through another via hole. The design ensures that the ITO pattern's width is smaller than the first via hole and larger than the second, effectively minimizing the level difference and preventing dust from adhering to the TFT substrate during the rubbing treatment.

Another significant patent is for an active matrix substrate plate and its manufacturing method. This method allows for the production of a high-quality active matrix substrate plate using four photolithographic fabrication steps. The process includes forming scanning lines and gate electrodes in a glass plate, laminating gate insulation and semiconductor layers, and creating transparent conductive and metallic layers. The final steps involve forming a protective insulation layer and etching to remove excess materials, resulting in a superior substrate with high yield.

Career Highlights

Yoshikawa has worked with notable companies in the technology sector, including NEC LCD Technologies, Ltd. and NEC Corporation. His experience in these organizations has contributed to his expertise in LCD technology and innovation.

Collaborations

Yoshikawa has collaborated with esteemed colleagues such as Satoshi Ihida and Hiroaki Tanaka, further enhancing his work in the field of LCD technology.

Conclusion

Tae Yoshikawa's contributions to LCD technology through his innovative patents and career achievements highlight his role as a key figure in advancing display technology. His work continues to influence the industry and improve the quality of LCD devices.