Location History:
- San Francisco, CA (US) (1996)
- Beaverton, OR (US) (1979 - 2001)
Company Filing History:
1 out of 2,728 
7 out of 832,812 Years Active: 1979-2001
Title: Innovations of Dennis R Hall
Introduction
Dennis R Hall is a notable inventor based in Beaverton, OR (US). He holds a total of 8 patents that showcase his contributions to the field of display technologies. His work primarily focuses on enhancing the efficiency and functionality of liquid crystal displays (LCDs) through innovative methods.
Latest Patents
One of Hall's latest patents is titled "High efficiency, color coding light pipe methods for display applications, utilizing chiral liquid crystal materials." This invention teaches methods that significantly increase the lighting efficiency of various lighted displays, including LCDs, by utilizing chiral nematic liquid crystal materials in the light pipes. This technology not only improves display efficiency but also enables practical applications in stereoscopic displays and lighted signs for advertising in challenging environments. Another significant patent is the "Transflective LCD utilizing chiral liquid crystal filter/mirrors." This system replaces traditional half-silvered mirrors with chiral liquid crystal reflectors, enhancing brightness and efficiency in transflective LCDs.
Career Highlights
Throughout his career, Dennis R Hall has worked with notable companies, including Tektronix, Inc. His innovative approaches have led to advancements in display technology, making him a respected figure in the industry.
Collaborations
Hall has collaborated with various professionals, including his coworker Philip A Johnson, to further enhance his inventions and contribute to the field of display technologies.
Conclusion
Dennis R Hall's innovative work in display technology, particularly through his patents, has made a significant impact on the efficiency and functionality of liquid crystal displays. His contributions continue to influence advancements in the industry.