全球首创！日本团队研发可发光又能发电的 OLED 面板

Core Insights - NHK Broadcasting Technology Research Institute, in collaboration with Kyoto University and Chiba University, has developed the world's first organic EL (OLED) display device that integrates both light emission and solar power generation capabilities, successfully achieving blue light emission [1][3][7] Group 1: Technological Breakthrough - The innovation overcomes traditional limitations where organic semiconductor light emission and solar power generation operate on opposing principles, with the former requiring electrical input and the latter generating electricity through light absorption [3][12] - The research team utilized a special material called "MR-TADF" (Multi-Resonance Thermally Activated Delayed Fluorescence), which exhibits high light emission and strong light absorption characteristics, allowing for the switching of light emission and power generation functions [3][12] - MR-TADF material represents an advancement in third-generation OLED technology, capable of emitting narrow spectrum light (full width at half maximum less than 40 nanometers), providing high color purity and efficiency [3][12] Group 2: Performance Metrics - The research team successfully achieved red, green, and blue light emission, with external quantum efficiency exceeding 8.5% for green and orange light-emitting devices, marking the highest levels of both light emission and power generation efficiency globally [3][12] Group 3: Future Applications - NHK Research Institute aims to apply this power-generating display technology in disaster relief scenarios, enabling screens to self-generate power from sunlight and display critical information even in the absence of external power sources [7][17] - Future efforts will focus on enhancing light emission and power generation efficiency, as well as durability, with the goal of commercializing low-power display devices [7][17] - The technology may also find applications in augmented reality (AR) and virtual reality (VR) fields, which require precise color representation [7][17]