2024-04-10 リンショーピング大学
＜関連情報＞
- https://liu.se/en/news-item/genombrott-for-nasta-generations-digitala-skarmar
- https://www.nature.com/articles/s41928-024-01151-x
光応答性ペロブスカイト発光ダイオードに基づく多機能ディスプレイ A multifunctional display based on photo-responsive perovskite light-emitting diodes
Chunxiong Bao,Zhongcheng Yuan,Wenxiao Niu,Jie Yang,Zijian Wang,Tao Yu,Jianpu Wang & Feng Gao
Nature Electronics Published:10 April 2024
DOI:https://doi.org/10.1038/s41928-024-01151-x
Abstract
Current display screens are typically only used for information display, but can have a range of different sensors integrated into them for functions such as touch control, ambient light sensing and fingerprint sensing. Photo-responsive light-emitting diodes (LEDs), which can display information and respond to light excitation, could be used to develop future ultra-thin and large screen-to-body ratio screens. However, photo-response is difficult to achieve with conventional display technologies. Here, we report a multifunctional display that uses photo-responsive metal halide perovskite LEDs as pixels. The perovskite LED display can be simultaneously used as a touch screen, ambient light sensor and image sensor (including for fingerprint drawing) without integrating any additional sensors. The light-to-electricity conversion efficiency of the pixels also allow the display to act as a photovoltaic device that can charge the equipment.
