Takao Tanaka

Title: Takao Tanaka: Liquid Crystal Display Patents

Introduction

Takao Tanaka is an inventor associated with Iwaki, Japan, and Alps Electric Co., Ltd. His work includes patent inventions addressing static electricity, electrical noise, and display quality in liquid crystal display devices. Tanaka is credited with 3 patents.

Latest Patents

One of Tanaka’s listed patents, “Substrate for Liquid Crystal Display Element and Method for …,” describes a liquid crystal display substrate designed to manage static electricity during manufacturing. It uses extension patterns connected to transparent electrodes and small discharge gaps outside the effective display area. The disclosed production method forms these features on a large glass substrate before cutting it into individual cell substrates.

Another listed patent, “Liquid Crystal Display with Ground Regions Between Terminal Groups,” focuses on protecting an LCD from static electricity and noise while reducing color shading near the display area’s edges. It places an electrically independent ground terminal between adjacent electrode-terminal groups and connects that terminal to a ground pattern on a flexible substrate. The ground pattern is grounded through a printed circuit board.

Career Highlights

Tanaka’s listed patent work reflects a focus on practical display engineering. The inventions address both manufacturing-stage electrostatic discharge and the operation of LCDs, including protection from electrical interference and improved peripheral display quality.

Collaborations

Tanaka is associated with Alps Electric Co., Ltd. His listed coworkers include Takehiro Ishikawa and Yoshifumi Masumoto.

Conclusion

Takao Tanaka’s patent contributions address key reliability and display-quality challenges in liquid crystal technology, from static control during substrate production to grounding strategies in finished displays.