Life cycle assessment of organic light emitting diode display as emerging materials and technology
Life cycle assessment of organic light emitting diode display as emerging materials and technology
复制标题
有机发光二极管显示器作为新兴材料和技术的生命周期评估
DOI：
10.1016/j.jclepro.2016.07.025
复制
发表时间：
2016
影响因子：
11.1
通讯作者：
Keisuke Hanaki
中科院分区：
文献类型：
--
作者：
Eri Amasawa;Tomohiko Ihara;Takashi Ohta;Keisuke Hanaki
本研究对一种用于智能手机的有机发光二极管显示器进行了生命周期评估，其中我们的研究集中在生成特殊化学品的生命周期清单和制造规模的制造工艺。以前对有机电子对环境影响的研究仅限于实验室规模的有机光伏电池制造，这阻碍了对有机电子实际影响的了解。在这项研究中，我们通过制定新的方法来构建新兴材料和工艺的库存，计算了当今最常用的有机电子产品：智能手机有源矩阵有机发光二极管(AMOLED)显示器从摇篮到门的环境影响。建立化学品库存和制造过程的方法包括用化学计量学处理现有库存，以及在显示行业中应用所观察到的显示面积和生产成本之间的相关性。环境影响评估结果表明，详细物流的整合改善了复杂化学品生产的数据表示。此外，与先前关于液晶显示器相对尺寸的研究相比，每台AMOLED显示器对环境的影响在全球变暖潜力方面表现出了优势。
This study presents a life cycle assessment of an organic light emitting diode display for smartphones, in which our research concentrated on generating a life cycle inventory of specialty chemicals and a fabrication process in manufacturing scale. Previous studies to investigate the environmental impact of organic electronics have been limited to organic photovoltaic cells in a laboratory scale fabrication, which prevents understanding of the practical impact of organic electronics. In this study, we computed cradle-to-gate environmental impact of the most commonly used organic electronics today: active matrix organic light emitting diode (AMOLED) display for smartphones, through the formulation of new approaches to construct inventories for emerging materials and processes. The approaches for constructing inventories of chemicals and fabrication process involve manipulation of existing inventory with stoichiometry, and application of observed correlation between display area and production cost in the display industry. The environmental impact assessment results communicate that integration of detailed material flow improves data representation of the production of complex chemicals. Additionally, environmental impact per AMOLED display exhibited superiority in global warming potential, when compared with a previous study on a comparative size of liquid crystal display.