| Summary: | 博士 === 國立交通大學 === 經營管理研究所 === 96 === Because patents are rich sources of technological and commercial information, the technological trends can be easily monitored to improve the developments of technology. Carbon nanotube field emission display (CNT-FED) represents both emerging application of nanotechnology and revolutionary invention of display. Especially, fabricating the emitter materials, which are called carbon nanotubes (CNTs), plays an important role in the manufacturing process of CNT-FED. However, there are several technological bottlenecks need to be overcome before further progress in CNT-FED technology and CNT fabrication. Therefore, it is an important subject to use patent analysis to monitor the states and trends of CNT-FED technology and CNT fabrication before the next stage of development.
The present paper uses patent bibliometric analysis and patent network analysis to monitor the technological states and trends of CNT-FED and CNT fabrication. First, Patent bibliometric analysis are employed to find the developmental path and current states of CNT-FED technology and CNT fabrication. Second, the network graphs of patents regarding CNT-FED technology and CNT fabrication respectively are drew by using patent network analysis. And then, cluster analysis can be used to sort all patents within patent network into several clusters. Finally, the critical technologies and technological trends can be identified based on the results of analyses.
This study reveals a lot of important outcomes in CNT-FED technology and CNT fabrication. In the CNT-FED technology, the results indicate that deposition CNT on substrate, coating phosphor on screen, and assembling process for whole device are three critical technologies for manufacturing CNT-FED. The developing trend of CNT-FED technology focuses on the synthesis of CNT materials. In the CNT fabrication, the results indicate that the critical technologies for fabricating the CNT based materials contain that enhancing the characteristic of CNT with various methods and producing CNT by chemical vapor deposition (CVD) technique on various substrates. The mainly developing trend of CNT fabrication focuses on CVD technique. Especially, the CVD technique plays an important role for manufacturing CNT based device.
In addition to the analytical of results, the methodologies of patent analyses play an important role in this study. Patent bibliometric analysis assists the researchers in easily understanding the developmental states of the subject technology. On the other hand, patent network analysis enables the researchers to intuitively comprehend the overview of a set of patents in the field of the technology being studied. The fruitful methodologies are helpful for the analyses of technological states and trends, as well as offer a useful avenue to monitor the emerging technology.
|
|---|
