This inventor holds 3 USPTO granted patents and 5 published patent applications. Top assignee: 3M Innovative Properties Company. Active years: 1983-1984.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Santa Clara, CA (US) (1983 - 1984)
- Alhambra, CA (US) (1984)
Company Filing History:
Years Active: 1983-1984
Title: David B Chung: Innovator in Liquid Crystal Technology
Introduction
David B Chung is a notable inventor based in Santa Clara, CA. He has made significant contributions to the field of liquid crystal technology, holding a total of 3 patents. His work focuses on enhancing visual display devices through innovative thermal addressing techniques.
Latest Patents
Among his latest patents is a thermally addressed cholesteric-smectic liquid crystal device. This device features a visual display that utilizes a new thermal addressing technique to create a dark image against a lighter background. The display can be multiplexed to accommodate a large number of rows. It comprises a cholesteric-smectic liquid crystal material mixed with a pleochroic dye of high order parameter. When the material transitions from a higher to a lower smectic thermal phase, it develops two distinct textures or light states: a transparent state and a light-absorbing state. The transparent state is achieved by applying a sensitizing voltage to specific portions of the medium. The pleochroic dye absorbs light passing through the unsensitized portions, resulting in the dark image. Additionally, the row electrodes are designed to be diffusely reflective, allowing for a double light pass through the medium to enhance contrast. Another significant patent is for a high brightness internal reflector for liquid crystal displays.
Career Highlights
David B Chung is currently employed at Minnesota Mining and Manufacturing Company, where he continues to innovate in the field of liquid crystal displays. His work has been instrumental in advancing display technologies that are widely used in various applications.
Collaborations
He has collaborated with notable coworkers, including Sun Lu and Chi H Chung, contributing to the development of cutting-edge technologies in their field.
Conclusion
David B Chung's contributions to liquid crystal technology exemplify the spirit of innovation. His patents reflect a commitment to enhancing visual display devices, making significant strides in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile