Browse > Article
http://dx.doi.org/10.6111/JKCGCT.2020.30.2.078

Effects of barrier film on optical properties of quantum dot film  

Lee, Jung-Il (Department of Materials Science and Engineering, Korea National University of Transportation)
Kim, Young-Ju (Department of Materials Science and Engineering, Korea National University of Transportation)
Ryu, Jeong Ho (Department of Materials Science and Engineering, Korea National University of Transportation)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.30, no.2, 2020 , pp. 78-81 More about this Journal
Abstract
Quantum dot efficiency was increased to evaluate reliability and optical characteristics using incidental materials. Quantum dot was manufactured by wrapping a sandwich type quantum layer using a product with a barrier property to prevent water and oxygen because it is vulnerable to oxygen and moisture. We used the three quantum dot films consisting of quantum dot only and quantum dot products consisting of film and barrier film combined with PET in the quantum dot product to evaluate the change over 650 hours under high temperature and high humidity conditions at 60℃ and 90 % humidity. As a result, the quantum dot product with Barrier Film has lowered luminance by 8 %, CIE x by 2 % and CIE y by 8 %. Quantum dot products exposed to moisture and oxygen were oxidized and measured low before measurement.
Keywords
Barrier film; Quantum dot film; Optical properties; Reliability; PET;
Citations & Related Records
연도 인용수 순위
  • Reference
1 K. Kakinuma, "Technology of wide color gamut backlight with light-emitting diode for liquid crystal display television", Jpn. J. Appl. Phys. 45 (2006) 4330.   DOI
2 R.J. Xie, N. Hirosaki and T. Takeda, "Wide color gamut backlight for liquid crystal displays using three-band phosphor-converted white light-emitting diodes", Appl. Phys. Express 2 (2009) 022401.   DOI
3 J.H. Oh, H. Kang, M. Ko and Y.R. Do, "Analysis of wide color gamut of green/red bilayered freestanding phosphor film-capped white LEDs for LCD backlight", Opt. Express 23 (2015) A791.   DOI
4 N. Moriya, M. Sugawara, R. Harada, T. Kageyama and K. Matsushima, "New color filter for light-emitting diode back light", Jpn. J. Appl. Phys. 42 (2003) 1637.   DOI
5 H. Zhan, Z. Xu, C. Tian, Y. Wang, M. Chen, W. Kim, Z. Bu, X. Shao and S. Lee, "Achieving standard wide color gamut by tuning led backlight and color filter spectrum in LCD", J. Soc. Inf. Disp. 22 (2014) 545.   DOI
6 H. Chen, R. Zhu, G. Tan, M.C. Li, S.L. Lee and S.T. Wu, "Enlarging the color gamut of liquid crystal displays with a functional reflective polarizer", Opt. Express 25 (2017) 102.   DOI
7 S. Coe-Sullivan, "Optoelectronics: Quantum dot developments", Nat. Photonics 3 (2009) 315.   DOI
8 E. Jang, S. Jun, H. Jang, J. Lim, B. Kim and Y. Kim, "White-light-emitting diodes with quantum dot color converters for display backlights", Adv. Mater. 22 (2010) 3076.   DOI
9 J.H. Oh, H. Kang, M. Ko and Y.R. Do, "Analysis of wide color gamut of green/red bilayered freestanding phosphor film-capped white LEDs for LCD backlight", Opt. Express 23 (2015) A791.   DOI
10 J.S. Steckel, J. Ho, C. Hamilton, J. Xi, C. Breen, W. Liu, P. Allen and S. Coe-Sullivan, "Quantum dots: The ultimate down‐conversion material for LCD displays", J. Soc. Inf. Disp. 23 (2015) 294.   DOI
11 H.J. Kim, M.H. Shin, H.G. Hong, B.S. Song, S.K. Kim, W.H. Koo, J.G. Yoon, S.Y. Yoon and Y.J. Kim, "Enhancement of optical efficiency in white OLED display using the patterned photoresist film dispersed with quantum dot nanocrystals", J. Disp. Technol. 12 (2016) 526.   DOI
12 H.J. Kim, M.H. Shin and Y.J. Kim, "Optical efficiency enhancement in white organic light-emitting diode display with high color gamut using patterned quantum dot film and long pass filter", Jpn. J. Appl. Phys. 55 (2016) 08RF01.   DOI
13 Z. Luo, Y. Chen and S.T. Wu, "Wide color gamut LCD with a quantum dot backlight", Opt. Express 21 (2013) 26269.   DOI
14 J. Ma, X. Ye and B. Jin, "Structure and application of polarizer film for thin-film-transistor liquid crystal displays", Displays 32 (2011) 49.   DOI
15 S. Kim, S.H. Im and S.W. Kim, "Performance of lightemitting-diode based on quantum dots", Nanoscale 5 (2013) 5205.   DOI