James A Stevenson is a notable inventor based in Saint Paul, MN (US). He holds a total of six patents, showcasing his contributions to the field of display technology. His work primarily focuses on enhancing the performance and uniformity of back-lit displays.

Latest Patents

One of his latest patents is for back-lit displays with high illumination uniformity. This invention involves a directly illuminated display unit that includes a display panel and one or more light sources positioned behind it. A diffuser is placed between the light source unit and the display panel, along with a light diverting layer that has light diverting members designed to spread illumination light uniformly. The light diverting members are engineered with surfaces at various angles and include sharp changes in surface slope to achieve better light distribution. Another significant patent is for composite diffuser plates and direct-lit liquid crystal displays. This invention incorporates multiple light management layers, such as a diffuser and a reflective polarizer, to ensure bright and uniform illumination in LCD monitors and TVs.

Career Highlights

James A Stevenson has worked with 3M Innovative Properties Company and 3M Innovative Properties, where he has contributed to various innovative projects. His experience in these companies has allowed him to develop and refine his inventions in display technology.

Collaborations

Some of his notable coworkers include Robert M Emmons and Kenneth A Epstein, who have collaborated with him on various projects throughout his career.

Conclusion

James A Stevenson is a distinguished inventor whose work in display technology has led to significant advancements in the field. His patents reflect a commitment to improving illumination uniformity and performance in back-lit displays.

Profile summary based on public USPTO records.