Company Filing History:
Years Active: 2010-2013
Title: The Innovative Contributions of Ching-hwa Chang Jean
Introduction
Ching-hwa Chang Jean is a renowned inventor based in Taoyuan, Taiwan, with a remarkable portfolio of 8 patents. His work primarily focuses on advancing light-emitting devices, a field critical for modern lighting and display technologies. Through his innovative methods, he enhances the efficiency and performance of these devices, contributing significantly to the industry.
Latest Patents
Among Ching-hwa Chang Jean’s latest inventions are groundbreaking methods that target the internal quantum efficiency and electrical injection efficiency of light-emitting devices.
One of his notable patents is titled "Method for improving internal quantum efficiency of group-III nitride-based light emitting device." This method involves the careful production of a group-III nitride-based substrate with a single crystalline structure, which is then coated with an oxide layer. This layer consists of particles whose size, shape, and density are finely controlled through specific chemical reactions. The oxide layer effectively prevents threading dislocations in the substrate from affecting the upper layer, thus improving the device's internal quantum efficiency.
Another significant contribution is his patent on the "Method for enhancing electrical injection efficiency and light extraction efficiency of light-emitting devices." This innovation describes a process where a site layer and protection layer are structured around a cavity, which is then filled with a window layer. The characteristics of this window layer can be finely tuned by manipulating various reaction parameters, allowing for optimal light escape angles.
Career Highlights
Ching-hwa Chang Jean is a key figure at Walsin Lihwa Corporation, where he has made substantial contributions to research and development. His dedication to innovation and his focus on practical applications of his inventions have positioned him as a leader within his field. His patents not only reflect his ingenuity but also demonstrate a commitment to pushing the boundaries of technology in the area of light emissions.
Collaborations
Throughout his career, Ching-hwa Chang Jean has worked closely with esteemed colleagues such as Jang-Ho Chen and Shiue-Lung Chen. These collaborations have enriched his research and have led to the development of cutting-edge technologies in light-emitting devices. The synergy within his professional network has been instrumental in his success as an inventor.
Conclusion
Ching-hwa Chang Jean stands out as a prominent inventor in the realm of light-emitting device technology. With a substantial number of patents and a strong professional background at Walsin Lihwa Corporation, he continues to innovate and improve the efficiency of these essential technologies. His contributions not only advance the field but also set a promising trajectory for future innovations in the industry.