Transparent displays utilizing nanopatterned quantum dot films

Sang Ho Shin, Boyeon Hwang, Zhi Jun Zhao, So Hee Jeon, Joo Yun Jung, Ji Hye Lee, Byeong Kwon Ju, Jun Ho Jeong

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9 Citations (Scopus)

Abstract

We report the realization of a transparent display using glass covered by a nanopatterned quantum dot (QD) film with good transmittance. The film was fabricated by nanoimprint lithography (NIL) and spin coating of colloidal QDs with specificexcitation maxima. The produced nanopatterned QD film was attached to transparent glass, enabling active image generation using a laser light source of a specific wavelength. Selective light emission was induced by strongly exciting the laser-exposed film surface, creating desired images, with color modulationenabled by controlling the QD layer (dozens of nanometers in size) via nanopatterning. The nanopatterned QD film used for image generation exhibits excellent transmittance (>80%), and can be used for transparent displays, with image realization in both bright and dark spaces. The fabricated displays have wide viewing anglesowing to their good light emission characteristics, and the fabrication through spin coating renders the fabrication process simple and applicable to large areas.

Original languageEnglish
Article number2463
JournalScientific Reports
Volume8
Issue number1
DOIs
Publication statusPublished - 2018 Dec 1

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ASJC Scopus subject areas

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Cite this

Shin, S. H., Hwang, B., Zhao, Z. J., Jeon, S. H., Jung, J. Y., Lee, J. H., Ju, B. K., & Jeong, J. H. (2018). Transparent displays utilizing nanopatterned quantum dot films. Scientific Reports, 8(1), [2463]. https://doi.org/10.1038/s41598-018-20869-1