Adjusting Correlated Color Temperature from White Light-Emitting Electrochemical Cells by Employing Electrochromic Filters

Bo Ruei Chiou, Zu-Po Yang, Monima Sarma, Hai-Ching Su, Ken Tsung Wong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

White light-emitting electrochemical cells (LECs) have drawn great attention due to advantages such as low-voltage operation, compatibility with solution processes and employing inert cathode metals. Since different correlated color temperatures (CCTs) of background illumination are necessary for lighting applications, real-time CCT-tunable white LECs would be desired in modem smart lighting systems. In this work, a widely and dynamically tuning CCT (> 10000 K) of white LEC is demonstrated by employing an electrochromic device (ECD) as a real-time controllable color filter. By adjusting the applied bias on the ECD to attenuate different amount of red emission of white EL, real-time and wide-range CCT tunability can be achieved. Such white light sources are suitable for most lighting applications and modem smart lighting systems.

Original languageEnglish
Title of host publicationAM-FPD 2018 - 25th International Workshop on Active-Matrix Flatpanel Displays and Devices
Subtitle of host publicationTFT Technologies and FPD Materials, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9784990875350
DOIs
StatePublished - 15 Aug 2018
Event25th International Workshop on Active-Matrix Flatpanel Displays and Devices - TFT Technologies and FPD Materials, AM-FPD 2018 - Kyoto, Japan
Duration: 3 Jul 20186 Jul 2018

Publication series

NameAM-FPD 2018 - 25th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, Proceedings

Conference

Conference25th International Workshop on Active-Matrix Flatpanel Displays and Devices - TFT Technologies and FPD Materials, AM-FPD 2018
CountryJapan
CityKyoto
Period3/07/186/07/18

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