This study investigates whether systematic differences exist between the technology convergence networks of South Korea, a latecomer country in the field of flexible display applications, and Japan, a leading country. Data focusing on materials for flexible display applications were collected from the United States Patent and Trademark Office. Co-classification analysis was performed for the two countries’ technology networks. The processed data were then analyzed using cluster and concentration index analyses. Cluster analysis indicates that South Korea has a homogeneous technology field, whereas inter-field technology convergence is active in Japan. The concentration index analysis shows that South Korea focuses on specific technology fields, while Japan actively engages in distributed technology convergence. Thus, this study contributes to understanding technology convergence by clarifying how technology is connected and integrated by latecomer and leader country in the field of flexible display applications.

这项研究调查了在柔性显示应用领域的后发国家韩国和领先的国家日本之间的技术融合网络之间是否存在系统差异。从美国专利商标局收集了有关用于柔性显示应用的材料的数据。对两国的技术网络进行了共同分类分析。然后使用聚类和浓度指数分析对处理后的数据进行分析。聚类分析表明，韩国拥有同质的技术领域，而跨领域的技术融合在日本十分活跃。集中度指数分析显示，韩国专注于特定技术领域，而日本则积极参与分布式技术融合。从而，