Digital wallpaper using surface-mounted LEDs

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


This paper introduces digital wallpaper demonstrator manufacturing based on flexible PET substrate with R2R printed conductive tracks and surface-mounted LEDs assembled on printed substrate on R2R assembly line. Heat management of applied LEDs simulated using Lighting Design Calculator (LDC) and simulated results compared to measurement results. Very good consistency between simulated and characterized results achieved with red Luxeon Color Line 3535L surface-mounted LEDs. In addition, measured junction temperatures of LEDs were about 80°C with 60mA operational driving current when laboratory temperature was 25°C. Such a reasonable low junction temperature for LEDs suggests long operational lifetime for components in wallpaper application.
Original languageEnglish
Title of host publication2020 IEEE 8th Electronics System-Integration Technology Conference (ESTC)
PublisherIEEE Institute of Electrical and Electronic Engineers
Number of pages4
ISBN (Electronic)978-1-7281-6293-5
ISBN (Print)978-1-7281-6294-2
Publication statusPublished - 15 Sept 2020
MoE publication typeA4 Article in a conference publication
Event8th IEEE Electronics System-Integration Technology Conference, ESTC 2020: Online - Virtual, Tonsberg, Vestfold, Norway
Duration: 15 Sept 202018 Sept 2020


Conference8th IEEE Electronics System-Integration Technology Conference, ESTC 2020
CityTonsberg, Vestfold


  • Digital wallpaper
  • Flexible substrate
  • Heat management
  • R2R printing
  • Surface-mounted LED


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