Unconventional Image‐Sensing and Light‐Emitting Devices for Extended Reality. (29th January 2021)

• Record Type: Journal Article
• Authors: Park, Jinhong; Seung, Hyojin; Kim, Dong Chan; Kim, Min Sung; Kim, Dae‐Hyeong
• Is Part Of: Advanced functional materials. Volume 31:Number 39(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-01-29
• Subjects: bioinspired camera -- flexible display -- neuromorphic image recognition -- stretchable display -- transparent display -- wavelength‐selective photodetection; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.202009281
• Languages: English
• ISSNs: 1616-301X

Abstract

Abstract: Extended reality (XR) refers to a space where physical and digital elements coexist and comprises three elements, namely, environment, human, and computer, which interact with each other. Image sensors and displays are the core elements of XR systems because visual information is important for recognizing and judging objects. Recently, new features of image sensors and displays that are useful for developing next‐generation XR systems have been reported. For example, a miniaturized version of image sensors with the superb object detection and recognition capability offers new opportunities for machine vision technology. Furthermore, transparent and deformable displays are the key components of XR systems because they not only provide highly realistic virtual image information but also serve as efficient user interfaces. Herein, the recent progresses in such unconventional image sensors and display technologies are reviewed. First, image sensors with features of wavelength‐selective photodetection for color discrimination, neuromorphic image acquisition for facile pattern recognition, and curved image sensor designs inspired by biological eyes for miniaturization and unconventional imaging performances are discussed. Then, light‐emitting device technologies focusing on devices with transparency and deformable form factors are described. Finally, the review is concluded with a brief summary and a future outlook. Abstract : Physical and digital worlds combine to form extended reality (XR). Image‐sensing and light‐emitting devices are the core components of XR because they enable intuitive interaction between physical and digital elements. This review focuses on unconventional features of image‐sensing and light‐emitting devices, which are useful for the next‐generation XR systems. Future outlook and remaining challenges are also described.