Kim Eui Hyuk, Han Hyowon, Yu Seunggun, Park Chanho, Kim Gwangmook, Jeong Beomjin, Lee Seung Won, Kim Jong Sung, Lee Seokyeong, Kim Joohee, Park Jang-Ung, Shim Wooyoung, Park Cheolmin
Department of Materials Science and Engineering Yonsei University 50 Yonsei-ro, Seodaemun-gu Seoul 03722 Republic of Korea.
Insulation Materials Research Center Korea Electrotechnology Research Institute Bulmosan-ro 10-gil 12, Seongsan-gu Changwon-si Gyeongsangnam-do 51543 Korea.
Adv Sci (Weinh). 2019 Apr 26;6(13):1802351. doi: 10.1002/advs.201802351. eCollection 2019 Jul 3.
In addition to the demand for stimuli-responsive sensors that can detect various vital signals in epidermal skin, the development of electronic skin displays that quantitatively detect and visualize various epidermal stimuli such as the temperature, sweat gland activity, and conductance simultaneously are of significant interest for emerging human-interactive electronics used in health monitoring. Herein, a novel interactive skin display with epidermal stimuli electrode (ISDEE) allowing for the simultaneous sensing and display of multiple epidermal stimuli on a single device is presented. It is based on a simple two-layer architecture on a topographically patterned elastomeric polymer composite with light-emitting inorganic phosphors, upon which two electrodes are placed with a certain parallel gap. The ISDEE is directly mounted on human skin, which by itself serves as a field-responsive floating electrode of the display operating under an alternating current (AC). The AC field exerted on the epidermal skin layer depends on the conductance of the skin, which can be modulated based on a variety of physiological skin factors, such as the temperature, sweat gland activity, and pressure. Conductance-dependent field-induced electroluminescence is achieved, giving rise to an on-hand sensing display platform where a variety of human information can be directly sensed and visualized.
除了对能够检测表皮皮肤中各种生命信号的刺激响应传感器有需求外，开发能够同时定量检测和可视化各种表皮刺激（如温度、汗腺活动和电导率）的电子皮肤显示器，对于用于健康监测的新兴人机交互电子产品具有重要意义。在此，提出了一种具有表皮刺激电极的新型交互式皮肤显示器（ISDEE），它能够在单个设备上同时感测和显示多种表皮刺激。它基于一种简单的双层结构，位于具有发光无机磷光体的地形图案化弹性体聚合物复合材料上，在其上以一定的平行间隙放置两个电极。ISDEE直接安装在人体皮肤上，人体皮肤本身作为在交流电（AC）下运行的显示器的场响应浮动电极。施加在表皮皮肤层上的交流电场取决于皮肤的电导率，而电导率可基于多种生理皮肤因素（如温度、汗腺活动和压力）进行调制。实现了基于电导率的场致电致发光，从而产生了一个可以直接感测和可视化各种人体信息的即时传感显示平台。
