John L Chuma

Title: Innovations of John L. Chuma

Introduction

John L. Chuma is a notable inventor based in Westborough, MA (US). He has made significant contributions to the field of electrophoretic displays, holding a total of 3 patents. His work focuses on enhancing display technologies, making them more efficient and user-friendly.

Latest Patents

One of his latest patents is for an electrophoretic display with a low profile edge seal. This invention describes electrophoretic display modules that include various types of backplane and edge seals designed to protect electro-optic displays from environmental contaminants. The innovative module designs allow for very narrow edge seals, measuring less than 1 mm in thickness. In this design, the electro-optic layer is sandwiched between a backplane and a protective sheet, with a sealing material extending between these components. The protective sheet may consist of several layers of transparent materials to provide physical protection and minimize water ingress.

Another significant patent by Chuma involves pressure-sensitive writing media comprising electrophoretic materials. This patent discloses systems and methods for pressure-sensitive electrophoretic displays, which may optionally include haptic feedback. The display features a first conductive layer with pressure-sensitive conductivity and an electrophoretic layer positioned adjacent to it. This configuration allows the electrophoretic layer to locally change state based on pressure applied to the first conductive layer, enabling local and global writing and erasing capabilities.

Career Highlights

John L. Chuma is currently employed at E Ink Corporation, a company renowned for its advancements in electronic ink technology. His work at E Ink has positioned him as a key player in the development of innovative display solutions.

Collaborations

Chuma has collaborated with notable colleagues, including Allan Sadun and Stephen J. Telfer. These collaborations have contributed to the advancement of technologies in the field of electrophoretic displays.

Conclusion

John L. Chuma's contributions to the field of display technology through his patents and work at E Ink Corporation highlight his innovative spirit and dedication to improving user experiences. His inventions continue to influence the development of advanced display systems.