South Korea has successfully developed self generating and washable OLED displays.
according to the Korean media "fnnews", the research team of Cui Jingzhe, a professor of the Department of electrical and electronic engineering under the Korean Academy of science and Technology (KAIST), and Zhao Xihao, a professor of the Department of clothing at QUANNAN University, have experienced many difficulties in realizing fiber-made wearable displays. They have to overcome the problems of power and durability, otherwise even if the development is successful, This wearable display is difficult to apply
the machine performance of polymer solar cells and organic FA Jinan new era assay instrument Co., Ltd. is relatively high. High end optical display components are quite vulnerable to external factors such as water and oxygen, so film packaging technology is required. However, although film packaging technology can be used at room temperature for more than one year of clinical use, it will lose its function in a humid environment, so it cannot be used in rainy days or washing environments. In order to solve these problems, the research team must create polymer solar cells (PSCs) that can stably supply power without power supply, and OLED fabrics that can operate only a few milliwatts, and the thin-film packaging technology applied to the fabrics must overcome the washing problem
the final research group used atomic layer deposition (ALD) and spin coating technology to evolve the thin film packaging technology so that the characteristics will not change even after washing, and can be installed on the self generating display module. Through such thin film packaging technology, the equipment can still maintain a bending radius of 3mm and the performance of electronic components after washing. The research group washed the device once a week and injected mechanical pressure. After 30 days of observation, it was confirmed that the characteristics of PSC and OLED were maintained at 98% and 94% respectively
Professor Cui Jingzhe believes that this is different from the research on wearable devices and displays made of plastic materials. This is based on the development of the durometer market worn in daily life. The development of cloth is expanded in strict accordance with the needs of consumers expressed by longmang Baili. It can not only accept washing, but also the polymer solar cells can generate electricity by themselves and drive electronic components. He also believes that such an invention has ushered in the "era of wearable displays"