Flexible artificial synesthesia electronics with sound-synchronized electroluminescence

Jong Sung Kim, Sung Hwan Cho, Kang Lib Kim, Gwangmook Kim, Seung Won Lee, Eui Hyuk Kim, Beomjin Jeong, Ihn Hwang, Hyowon Han, Wooyoung Shim, Tae Woo Lee, Cheolmin Park

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Visualization of human senses has been of great interest for developing an emerging interactive display that can artificially stimulate synesthesia with numerous unprecedented applications. Especially, visualization of various daily sound and music, which are much more complicated than human touch, in a form of flexible thin film devices can be a great challenge. We present flexible artificial synesthesia electronics that visualize continuous and complicated sounds. The electronic device is made of a thin composite film of a piezoelectric polymer for sound generation and inorganic electroluminescence (EL) microparticles for direct visualization of input sound signals. Field-induced EL of the microparticles in the device depends upon the source sound wave, making their EL synchronized with sound arising from the piezoelectric actuation. The flexible artificial synesthesia devices with sound-synchronized EL (FASSEL) showed extreme mechanical tolerance that can be repeatedly folded and crumpled with visible sound, allowing a variety of unexplored applications including synchronous sound-lightings and wearable, on-body sound-vision systems to facilitate emotional interaction of human being with sound in a human-friendly form.

Original languageEnglish
Pages (from-to)773-783
Number of pages11
JournalNano Energy
Publication statusPublished - 2019 May

Bibliographical note

Funding Information:
This research was supported by a grant from the National Research Foundation of Korea , funded by Korean government (MEST) (No. 2017R1A2A1A05001160 , NRF-2016M3A7B4910530 , 2016R1A3B1908431 , 2018M3D1A1058536 ) and by the third stage of the Brain Korea 21 Plus project in 2017 .

Publisher Copyright:
© 2019 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering


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