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 Sep 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 Sep 202018 Sep 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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