Quantum‐Dot and Quantum‐Rod Displays – the Next Big Wave

Abstract

Photoluminescent and electroluminescent quantum dots and quantum rods are the subject of rapidly expanding research efforts. These materials possess performance benefits – particularly in the areas of luminescence and color – that the authors believe will reshape the display industry as we know it.

High-Temperature Photoluminescence in Colloidal “Quasi” 2D Materials

“…The demand for high light quality and efficiency motivated the development of quantum-confined materials, wherein semiconductor quantum dots (QDs) likely represent the most appropriate class of materials for color conversion applications. 1 However, within one of the most efficient designs in high-quality light-emitting diode (LED) lighting, the color-converting material is subjected to operating temperatures around 390−425 K, 2 including those ranges at which the performance of the as-prepared QDs deteriorate rapidly because of "thermal quenching", which can be partially mitigated. 3−5 The recently discovered semiconducting nanoplatelets (NPLs), which can be described as quasi-two-dimensional (2D) materials, may be accessed through analogous chemistries and techniques for preparing QDs.…”

Emerging Solution‐Processable Luminescent Nanomaterials in Hybrid Structures Offer New Solutions for Displays and Lighting

“…As outlined in Wang and Sun's article 4 , the merits of QDs and perovskites include: • Precisely tunable emission wavelength through size and/or composition control of QDs and perovskites that can cover a wide range of wavelengths ( Fig. 1 A closer look at these specific material systems can provide a better understanding of their merits and respective remaining challenges.…”

“…Working as independent players in either photoluminescence (PL) or electroluminescence (EL) mode, these materials could help two competing display technologies (LCDs and organic light‐emitting diodes [OLEDs]) in achieving better color quality and higher efficiencies. A recent article published in this magazine by Wang and Sun, 4 “Quantum‐Dot and Quantum‐Rod Displays – the Next Big Wave,” provided a comprehensive overview of this technology, covering both QD‐enhanced LCD products in the market and active QD LED research in the lab.…”

P‐115: Patternable and Ultra‐Thin Quantum Dot Color Conversion Layer for Mini‐Sized White Light LED Backlight

“…Recently, many companies have tried to promoted TVs with wide color gamut (WCG) and HDR by incorporating with a quantum dot enhancement film (QDEF) and a blue mini LED chips. However, the QD-BLU is with a drawback of thick device compared to the thin OLED displays [5]. It is still demanding to design LCD with a QD-incorporated mini-LED BLU with a competing thickness to OLED because the thickness of current commercial QDEFs is generally thicker than 200 um.…”