Volume 13 Issue 1
Feb.  2020
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Chinese Optics  > 2020  >  13(1): 14-27.
YE Yun, YU Jin-hui, LIN Shu-yan, CHEN En-guo, XU Sheng, GUO Tai-liang. Progress of quantum dot backlight technology[J]. Chinese Optics, 2020, 13(1): 14-27. doi: 10.3788/CO.20201301.0014
Citation: YE Yun, YU Jin-hui, LIN Shu-yan, CHEN En-guo, XU Sheng, GUO Tai-liang. Progress of quantum dot backlight technology[J]. Chinese Optics, 2020, 13(1): 14-27. doi: 10.3788/CO.20201301.0014
shu

Progress of quantum dot backlight technology

  • College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China

Funds:

Supported by National Key R & D Program No.2017YFB0404604

Supported by Natural Science Foundation of Fujian Province No.2018J01802

More Information
  • Corresponding author: XU Sheng E-mail:xusheng06090@163.com
  • Received Date: 03 Jul 2019
  • Rev Recd Date: 20 Aug 2019
  • Publish Date: 01 Feb 2020
    Abstract
  • Quantum dots (QDs) have received widespread attention because of their adjustable emitted wavelength of light, color purity and high quantum efficiency, which have great potential in applications requiring high-color-quality displays with photoluminescence. In this paper, the progress of QD backlights based on each QDs on-chip, QDs on-surface and QDs on-edge are reviewed, including their principle, structures and current applications. Then, several other novel QD backlight structures are also introduced, prompting a proposal for two novel QD backlight technologies. One is the QDs scattering diffusion plate, which is prepared by injecting molding with a mixture of QDs and polymer at a low temperature. The other is a QD microstructure light guide plate, which is fabricated by transferring QDs on the surface of a light guide plate through screen printing or inkjet printing. Both of these two QD plates can achieve high color gamut while being simple to process, being low in cost and holding high production efficiency. These have wide applications in high color gamut liquid crystal displays.

     

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