PATENT MAP ANALYSIS OF CHINA'S ORGANIC LIGHT-EMITTING DIODE TECHNOLOGY

This study is to explore the traits of research and development of China's Organic Light-emitting Diode (OLED) technology through the analysis of patent applications, applicant information and patent distribution in the OLED field. Using a sample of 8366 patent data, a statistical analysis as well as the patent map was employed to identify the technology life cycle, major OLED enterprises patent layout and key development fields of OLED technology in China. The result indicates that China's enterprises could develop an OLED technology that is oriented toward safety and emergency management applications in the future. Patent analysis based on the patent map of China's OLED technology is conducive to the understanding of the competitive situation in China's OLED industry, discovering the development direction of OLED technology, and providing enterprises with theoretical guidance in patent layout and strategic planning.