Chang-Jiang Chen

Title: Innovations by Chang-Jiang Chen in Light Emitting Diodes

Introduction

Chang-Jiang Chen is an accomplished inventor based in State College, PA (US). He has made significant contributions to the field of light-emitting diodes (LEDs). His innovative work focuses on enhancing light extraction efficiency, which is crucial for improving the performance of LED technology.

Latest Patents

Chang-Jiang Chen holds a patent for a high light extraction efficiency (LEE) light-emitting diode. This invention features a substrate with a first surface and an opposing second surface. A reflection layer is positioned on the first surface, while the light-emitting diode structure is arranged on the second surface. The structure includes a first semiconducting layer, an active layer, and a second semiconducting layer, all arranged consecutively. Notably, a plurality of protruding asymmetric micro-structured elements define part of the second surface, allowing for improved light extraction.

Career Highlights

Chang-Jiang Chen is affiliated with the Penn State Research Foundation, where he continues to advance research in LED technology. His work has garnered attention for its potential applications in various lighting solutions.

Collaborations

He has collaborated with notable colleagues, including Ju-Hung Chao and Wenbin Zhu, contributing to the advancement of innovative technologies in their field.

Conclusion

Chang-Jiang Chen's contributions to light-emitting diode technology exemplify the impact of innovative thinking in engineering. His patent for high light extraction efficiency LEDs represents a significant step forward in the quest for more efficient lighting solutions.