EAGER: Development of Intrinsically Stretchable, Active-Matrix OLED Displays

EAGER：开发本质上可拉伸的有源矩阵 OLED 显示器

• 批准号: 1549888
• 负责人: Zhibin Yu
• 金额: $ 10万
• 依托单位: Florida State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-08-15 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1549888&HistoricalAwards=false
• 关键词: EAGER; Development; Intrinsically; Stretchable; Active

Abstract:Nontechnical:The proposed EAGER combines recent advances in several scientific disciplines, including organic and polymer semiconductors, key materials behind highly flexible and intrinsically stretchable organic light emitting diodes (OLEDs), single walled carbon nanotubes and silver nanowires spun out of efforts in nanomaterials development, and the demonstration of intrinsically stretchable polymer OLEDs and highly flexible CNT backplanes. This work will represent a major step forward in promoting practical application of wearable electronics, with the functional devices taking an innovative form factor, fabricated with non-toxic materials and by a low-cost process. Such displays will be light weight and stretchable.They can be folded like handkerchiefs into small sizes for easy portability and unfolded into large screens to plug in a number of small size portable electronics for use as large size, external screens. The displays can also conformally cover uneven surfaces and cope with body movement, thus making them wearable like human clothing.Technical:This EAGER will investigate the essential materials and scalable process for the demonstration of active-matrix organic light-emitting diode (OLED) displays that can be repeatedly stretched by 50%. All the components in such display including the OLEDs, thin-film transistors and interconnect are intrinsically stretchable. The simplicity and stretch ability of such new displays could offer important benefits such as deployment into large size displays from a small stowed volume onto uneven surfaces, compatibility with wearable electronic devices, and light weight.To achieve the above mentioned goals, the EAGER project will focus on the following research objectives: (1) Study of fundamental structure-property relationship essential for stretchable thin-film transistors. The research involves extensive exploration on materials design for the channel, the source/drain and the dielectric layers with superior stretch ability and inter-layer adhesion for ideal device performance ; (2) Integration of stretchable OLEDs and stretchable thin-film transistors. A set of RGB lighting pixels will be printed and connected to their neighboring transistors by ink-jet printing. The work involves the selection of light emitting materials for red, green and blue color emission and the optimization of printing process for uniform light emission.For broader dissemination of the research results and to improve awareness to the importance of advanced manufacturing for next generation flexible and stretchable electronics, the proposed research includes plans for educational outreach components, including research/teaching lab development and community college and local high school outreach programs. FSU College of Engineering is a joint venture between FAMU (an HBCU) and FSU.

摘要：非技术性：所提出的 EAGER 结合了多个科学学科的最新进展，包括有机和聚合物半导体、高柔性和本质可拉伸有机发光二极管 (OLED) 背后的关键材料、单壁碳纳米管和纳米材料领域的银纳米线。开发以及本质可拉伸聚合物 OLED 和高柔性 CNT 背板的演示。这项工作将代表着在促进可穿戴电子产品的实际应用方面向前迈出的重要一步，该功能设备采用创新的外形尺寸，采用无毒材料和低成本工艺制造。这种显示器重量轻且可拉伸。它们可以像手帕一样折叠成小尺寸以便于携带，也可以展开成大屏幕以插入许多小尺寸便携式电子设备，用作大尺寸外部屏幕。这些显示器还可以保形地覆盖不平坦的表面并应对身体运动，从而使它们像人类衣服一样可穿戴。技术：EAGER 将研究用于演示有源矩阵有机发光二极管 (OLED) 显示器的基本材料和可扩展工艺可反复拉伸50%。此类显示器中的所有组件（包括 OLED、薄膜晶体管和互连）本质上都是可拉伸的。这种新型显示器的简单性和可拉伸性可以带来重要的好处，例如从较小的收纳体积部署到不平坦表面上的大尺寸显示器、与可穿戴电子设备的兼容性以及重量轻。为了实现上述目标，EAGER项目将重点关注以下研究目标：（1）研究可拉伸薄膜晶体管的基本结构-性能关系。该研究涉及对沟道、源极/漏极和介电层的材料设计进行广泛的探索，以实现理想的器件性能，具有优异的拉伸能力和层间粘合力； (2)可拉伸OLED与可拉伸薄膜晶体管的集成。一组 RGB 照明像素将通过喷墨打印被打印并连接到其相邻的晶体管。这项工作涉及红、绿、蓝三色发光的发光材料的选择以及均匀发光的印刷工艺的优化。为了更广泛地传播研究成果并提高人们对先进制造对于下一代柔性和柔性材料的重要性的认识。拟议的研究包括教育推广计划，包括研究/教学实验室开发以及社区大学和当地高中推广计划。 FSU 工程学院是 FAMU（HBCU）和 FSU 的合资企业。