Flexible thermochromic displays

Aki Halme; Teemu Salo; Jukka Vanhala

doi:10.1109/FLEPS61194.2024.10604115

Flexible thermochromic displays

Aki Halme
, Teemu Salo
, Jukka Vanhala

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

1 Citation (Scopus)

24 Downloads (Pure)

Abstract

Large area flexible displays have many applications in information displays, decorative elements, and adaptive camouflage. Reflective displays, which change the actual surface color, have some advantages over emissive displays: they do not need the energy to emit light, they adapt automatically to the ambient lighting, and have a broad spectrum. Thermochromic materials can be used to implement flexible large-area low-resolution displays. We have demonstrated a reflective thermochromic display structure with 5cm x 5cm pixels fabricated on a thin Kapton foil using screen-printed heating elements, spray-coated thermochromic paint layers with controlled layer thicknesses, and copper traces for power delivery. The total thickness of the surface is under 200 μm.

Original language	English
Title of host publication	2024 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
Publisher	IEEE
Number of pages	4
ISBN (Electronic)	979-8-3503-8326-3
ISBN (Print)	979-8-3503-8327-0
DOIs	https://doi.org/10.1109/FLEPS61194.2024.10604115
Publication status	Published - 2024
Publication type	A4 Article in conference proceedings
Event	IEEE International Conference on Flexible and Printable Sensors and Systems - Tampere University, Tampere, Finland Duration: 30 Jun 2024 → 3 Jul 2024

Publication series

Name	IEEE International Conference on Flexible and Printable Sensors and Systems
ISSN (Print)	2832-8248
ISSN (Electronic)	2832-8256

Conference

Conference	IEEE International Conference on Flexible and Printable Sensors and Systems
Abbreviated title	FLEPS
Country/Territory	Finland
City	Tampere
Period	30/06/24 → 3/07/24

Funding

This work has been supported by the Finnish Scientific Advisory Board for Defence (MATINE) under the contract 2500M-0128.

Publication forum classification

Publication forum level 1

Access to Document

10.1109/FLEPS61194.2024.10604115

Accepted manuscript_Thermochromic displays
This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Accepted author manuscript, 448 KBLicence: Unspecified

https://urn.fi/URN:NBN:fi:tuni-202408027872Licence: Unspecified

Cite this

@inproceedings{9cb4e9ee946a41fc9c8717843a389f44,

title = "Flexible thermochromic displays",

abstract = "Large area flexible displays have many applications in information displays, decorative elements, and adaptive camouflage. Reflective displays, which change the actual surface color, have some advantages over emissive displays: they do not need the energy to emit light, they adapt automatically to the ambient lighting, and have a broad spectrum. Thermochromic materials can be used to implement flexible large-area low-resolution displays. We have demonstrated a reflective thermochromic display structure with 5cm x 5cm pixels fabricated on a thin Kapton foil using screen-printed heating elements, spray-coated thermochromic paint layers with controlled layer thicknesses, and copper traces for power delivery. The total thickness of the surface is under 200 μm.",

author = "Aki Halme and Teemu Salo and Jukka Vanhala",

year = "2024",

doi = "10.1109/FLEPS61194.2024.10604115",

language = "English",

isbn = "979-8-3503-8327-0",

series = "IEEE International Conference on Flexible and Printable Sensors and Systems",

publisher = "IEEE",

booktitle = "2024 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)",

address = "United States",

note = "IEEE International Conference on Flexible and Printable Sensors and Systems, FLEPS ; Conference date: 30-06-2024 Through 03-07-2024",

}

Halme, A, Salo, T & Vanhala, J 2024, Flexible thermochromic displays. in 2024 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS). IEEE International Conference on Flexible and Printable Sensors and Systems, IEEE, IEEE International Conference on Flexible and Printable Sensors and Systems, Tampere, Finland, 30/06/24. https://doi.org/10.1109/FLEPS61194.2024.10604115

Flexible thermochromic displays. / Halme, Aki; Salo, Teemu; Vanhala, Jukka.
2024 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS). IEEE, 2024. (IEEE International Conference on Flexible and Printable Sensors and Systems).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Flexible thermochromic displays

AU - Halme, Aki

AU - Salo, Teemu

AU - Vanhala, Jukka

PY - 2024

Y1 - 2024

N2 - Large area flexible displays have many applications in information displays, decorative elements, and adaptive camouflage. Reflective displays, which change the actual surface color, have some advantages over emissive displays: they do not need the energy to emit light, they adapt automatically to the ambient lighting, and have a broad spectrum. Thermochromic materials can be used to implement flexible large-area low-resolution displays. We have demonstrated a reflective thermochromic display structure with 5cm x 5cm pixels fabricated on a thin Kapton foil using screen-printed heating elements, spray-coated thermochromic paint layers with controlled layer thicknesses, and copper traces for power delivery. The total thickness of the surface is under 200 μm.

AB - Large area flexible displays have many applications in information displays, decorative elements, and adaptive camouflage. Reflective displays, which change the actual surface color, have some advantages over emissive displays: they do not need the energy to emit light, they adapt automatically to the ambient lighting, and have a broad spectrum. Thermochromic materials can be used to implement flexible large-area low-resolution displays. We have demonstrated a reflective thermochromic display structure with 5cm x 5cm pixels fabricated on a thin Kapton foil using screen-printed heating elements, spray-coated thermochromic paint layers with controlled layer thicknesses, and copper traces for power delivery. The total thickness of the surface is under 200 μm.

U2 - 10.1109/FLEPS61194.2024.10604115

DO - 10.1109/FLEPS61194.2024.10604115

M3 - Conference contribution

SN - 979-8-3503-8327-0

T3 - IEEE International Conference on Flexible and Printable Sensors and Systems

BT - 2024 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)

PB - IEEE

T2 - IEEE International Conference on Flexible and Printable Sensors and Systems

Y2 - 30 June 2024 through 3 July 2024

ER -

Flexible thermochromic displays

Abstract

Publication series

Conference

Funding

Publication forum classification

Access to Document

Fingerprint

Cite this