Location History:
- Yongin, KR (2011 - 2016)
- Yongin-si, KR (2010 - 2017)
Company Filing History:
16 out of 27,040 
2 out of 7,646 
1 out of 1,219 Years Active: 2010-2017
Title: **Seok-Rak Chang: A Pioneer in Organic Light-Emitting Technologies**
Introduction
Seok-Rak Chang is a distinguished inventor based in Yongin, South Korea, recognized for his significant contributions to the field of organic light-emitting display (OLED) technologies. With a remarkable portfolio of 19 patents, he has consistently innovated and advanced the methods used in organic layer deposition apparatuses, vital for the manufacturing of OLED devices.
Latest Patents
Among his latest inventions is an innovative organic layer deposition apparatus along with a method for manufacturing organic light-emitting display devices utilizing this apparatus. This cutting-edge technology encompasses an electrostatic chuck that securely holds the substrate, a deposition unit that operates under vacuum conditions, and a complex assembly designed to efficiently deposit an organic layer. This system includes a first conveyor unit that transports the substrate within the deposition unit, showcasing a sophisticated guide mechanism for enhanced operational efficiency.
Career Highlights
Seok-Rak Chang has held pivotal roles at leading companies in the technology sector, most notably at Samsung Display Co., Ltd. and Samsung SDI Co., Inc. These experiences have enriched his professional journey and provided him with a platform to develop and refine his innovative concepts in OLED technology.
Collaborations
Throughout his career, Seok-Rak has collaborated with notable colleagues, including Jong-Won Hong and Heung-Yeol Na, contributing to a dynamic team environment that fosters creativity and innovation. These partnerships have undoubtedly enhanced the quality and impact of his inventions in the industry.
Conclusion
Seok-Rak Chang remains a prominent figure in the realm of organic light-emitting displays, with a strong commitment to pushing the boundaries of technology. His innovative designs and methodologies not only enhance the efficiency of manufacturing processes but also contribute significantly to the evolution of display technologies, marking him as a valuable inventor in the tech industry.