Super Ultra-High Resolution Liquid-Crystal-Display Using Perovskite Quantum-Dot Functional Color-Filters

Scientific Reports
Yun-Hyuk KoJea-Gun Park

Abstract

Quantum dot enhancement film (QDEF) working in tandem with a blue light-emitting-diode (LED) back-light-unit (BLU) has been recently used in liquid crystal display (LCD) to minimize the cross talks between the polarized emitting B-, G-, and R-light. However, they still exhibit a fundamental and considerable emitting-light-power loss from QDEF because of the light absorption loss in resin and transparent films of QDEF. In this work, we propose and demonstrate the superiority of the LCD using blue-(B-), green-(G-), and red-(R-) perovskite-quantum-dot (PrQD) functional CFs coupled with a blue LED BLU. This LCD using PrQD functional CFs and a blue LED BLU features cross-talk free spectra of polarized emitting B-, G-, and R-light, maximizing the LCD color gamut and exhibiting a world record performance of over 102.7% (137%) of Rec.2020 standard (NTSC standard). Theoretically, such an improvement in color gamut would facilitate unlimited scaling-down of the pixel leading to super ultra-high resolution LCD.

References

Feb 7, 2012·Journal of the American Chemical Society·Sungwoo KimSang-Wook Kim
Sep 15, 2015·Optics Express·Ruidong ZhuShin-Tson Wu
Dec 22, 2015·Chemical Communications : Chem Comm·Parthiban RamasamyJong-Soo Lee
Apr 27, 2017·Scientific Reports·Valentina CappelloMauro Gemmi

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Citations

May 16, 2020·Light, Science & Applications·Zhaojun LiuJr-Hau He
May 12, 2021·Light, Science & Applications·Zhaojun LiuJr-Hau He
Jun 18, 2021·ACS Nano·Amrita DeyLakshminarayana Polavarapu
Jun 23, 2021·Optics Express·Sheng XuTailiang Guo
Aug 14, 2020·ACS Applied Materials & Interfaces·Vijay Kumar BaliyanJang-Kun Song
Nov 26, 2019·Journal of the American Chemical Society·Franziska KriegMaksym V Kovalenko
Jul 1, 2020·Chemistry of Materials : a Publication of the American Chemical Society·Agnieszka NoculakMaksym V Kovalenko
Oct 11, 2021·Nanoscale Research Letters·Zhi-Ting YeChia-Hui Chen

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Methods Mentioned

BETA
X-ray

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