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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea


  • Vol. 17, Iss. 5 — Oct. 1, 2013
  • pp: 428–432

Flexible Reflective Color Displays using Thermochromic Pigments

Kyong Chan Heo, Youngku Sohn, Jonghoon Yi, Jin Hyuk Kwon, and Jin Seog Gwag  »View Author Affiliations

Journal of the Optical Society of Korea, Vol. 17, Issue 5, pp. 428-432 (2013)

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This research presents a flexible reflective thermochromic display (TCD) comprised of thermochromic pigments and a patterned indium tin oxide (ITO) film coated on a polyethylene naphthalate (PEN) substrate, and the display's thermo-optical characteristics. The display showed maximum red, green, and blue reflectances of 30%, 38%, and 29%, respectively. Furthermore, the display exhibited a continuous grey color when the temperature was changed continuously. As a flexible display, the display showed reliable thermo-optical performance without image damage even when highly bent. We expect the proposed TCD will be used in outdoor information display applications where low cost is a key factor.

© 2013 Optical Society of Korea

OCIS Codes
(120.2040) Instrumentation, measurement, and metrology : Displays
(130.0250) Integrated optics : Optoelectronics
(160.6840) Materials : Thermo-optical materials

Original Manuscript: July 31, 2013
Manuscript Accepted: September 17, 2013
Published: October 25, 2013

Kyong Chan Heo, Youngku Sohn, Jonghoon Yi, Jin Hyuk Kwon, and Jin Seog Gwag, "Flexible Reflective Color Displays using Thermochromic Pigments," J. Opt. Soc. Korea 17, 428-432 (2013)

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