This inventor holds 2 USPTO granted patents. Top assignees: Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd., Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd.. Active years: 2016-2022.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Shijiazhuang, CN (2016)
- Hebei, CN (2022)
Company Filing History:
1 out of 47 
1 out of 13 Years Active: 2016-2022
Title: Innovations of Hongfeng Li in Liquid Crystal Technology
Introduction
Hongfeng Li is a prominent inventor based in Shijiazhuang, China. He has made significant contributions to the field of liquid crystal technology, holding two patents that showcase his innovative work. His inventions focus on enhancing the performance and stability of liquid crystal displays.
Latest Patents
One of Hongfeng Li's latest patents is related to a liquid crystal composition, a liquid crystal display element, and a liquid crystal display that incorporates this composition. This invention aims to improve the dielectric anisotropy and voltage retention rate of liquid crystal displays. The composition includes a compound represented by formula I and one or more compounds represented by formula II, which work together to enhance display performance.
Another notable patent involves a cycloheptane derivative, which is characterized by its photostability and thermostability. This compound has a wide nematic phase and liquid crystalline state temperature range, along with good low-temperature intersolubility. It also exhibits low rotary viscosity and excellent dielectric anisotropy, making it a valuable addition to the field of liquid crystal technology.
Career Highlights
Hongfeng Li has worked with Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd. and Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd. These companies have provided him with a platform to develop and refine his innovative ideas in liquid crystal technology.
Collaborations
Some of his notable coworkers include Kui Wang and Sumin Kang. Their collaboration has likely contributed to the advancements in the projects they have worked on together.
Conclusion
Hongfeng Li's contributions to liquid crystal technology through his patents demonstrate his commitment to innovation in this field. His work continues to influence the development of more efficient and effective liquid crystal displays.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile