This inventor holds 1 USPTO granted patent. Top assignees: Au Optronics Corporation, Sun Yat-Senuniversity. Active years: 2007.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 4,577 
1 out of 117 
Years Active: 2007
Title: Han-chang Cheng: Inventor of a Backlight Module
Introduction
Han-chang Cheng is an inventor associated with Fengshan, Taiwan. His work includes an invention designed to improve how a backlight module gathers and directs light.
Latest Patents
Cheng is credited with 1 patent: “Backlight Module and Brightness Enhancement Film Thereof.” The invention describes a backlight module with a light source, a light guide plate that guides light from the source, and a brightness enhancement film featuring multiple spherical-surface microlenses. These microlenses gather light from the light guide plate and are described as offering better light-gathering efficiency than traditional prism sheets.
Career Highlights
Cheng’s listed affiliations include Sun Yat-sen University and AU Optronics Corporation. His patent reflects work on optical components for backlight systems.
Collaborations
Cheng’s listed coworkers include Cheng-tang Pan and Ching-hua Su.
Conclusion
Han-chang Cheng’s patent focuses on improving backlight performance through a brightness enhancement film with spherical-surface microlenses.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile