Realizing Rec 2020 color gamut with quantum dot displays

Zhu, Rong; Luo, Zhenyue; Chen, Haiwei; Dong, Yajie

doi:10.1364/oe.23.023680

Cited by 284 publications

(205 citation statements)

References 36 publications

(47 reference statements)

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“…In this paper, we directly calculate the color gamut area rather than the color gamut coverage to indicate the ratio of color gamut . The CIE color coordinates are calculated as shown in Table .…”

Section: Resultsmentioning

confidence: 99%

Ultrawide color gamut LCD display with CdSe/CdS nanoplatelets

et al. 2019

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We present a liquid‐crystal display (LCD) backlight made of nanoplatelets (NPLs) for the first time. Owing to the narrow emission linewidth of NPLs (8‐12 nm) and quantum dots (QDs), the spectrum exhibits a wide color gamut display with a 139.9% color gamut of National Television System Committee (NTSC) 1953 standard and 104.5% Rec.2020 (ITU‐R Recommendation BT.2020), realizing a truly ultrawide color gamut LCD display.

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Section: Resultsmentioning

confidence: 99%

Ultrawide color gamut LCD display with CdSe/CdS nanoplatelets

et al. 2019

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“…Since the human eye is more sensitive to green than to blue/red colors, meeting the demand of the International Telecommunication Union Recommendation BT 2020 (Rec. 2020) standard for new‐generation ultrahigh definition TVs is challenging for green LEDs . To loosen this bottleneck, many efforts have been made to enlarge the color gamut which is defined by the corresponding three color primaries (e.g., the Commission Internationale de L'Eclairage (CIE) 1931 color coordinates of (0.170, 0.797) for the Rec.…”

Section: Summary Of Led Performancesmentioning

confidence: 99%

Light‐Emitting Diodes with Cu‐Doped Colloidal Quantum Wells: From Ultrapure Green, Tunable Dual‐Emission to White Light

Liu

Sharma

et al. 2019

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Copper‐doped colloidal quantum wells (Cu‐CQWs) are considered a new class of optoelectronic materials. To date, the electroluminescence (EL) property of Cu‐CQWs has not been revealed. Additionally, it is desirable to achieve ultrapure green, tunable dual‐emission and white light to satisfy the various requirement of display and lighting applications. Herein, light‐emitting diodes (LEDs) based on colloidal Cu‐CQWs are demonstrated. For the 0% Cu‐doped concentration, the LED exhibits Commission Internationale de L'Eclairage 1931 coordinates of (0.103, 0.797) with a narrow EL full‐wavelength at half‐maximum of 12 nm. For the 0.5% Cu‐doped concentration, a dual‐emission LED is realized. Remarkably, the dual emission can be tuned by manipulating the device engineering. Furthermore, at a high doping concentration of 2.4%, a white LED based on CQWs is developed. With the management of doping concentrations, the color tuning (green, dual‐emission to white) is shown. The findings not only show that LEDs with CQWs can exhibit polychromatic emission but also unlock a new direction to develop LEDs by exploiting 2D impurity‐doped CQWs that can be further extended to the application of other impurities (e.g., Mn, Ag).

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“…Due to the excellent photonic properties of perovskite nanocrystals, the main field of application for the future is focused on light‐emitting devices such as LEDs. The primary emission peaks for quantum dots displays and the color gamut are centered at 467 nm (blue), 532 nm (green), and 630 nm (red) according to the International Commission on Illumination (CIE) . Perovskite NCs are therefore promising candidates for such type of application by tuning the emission wavelength of the emitter.…”

Section: Structure Synthesis and Rec 2020mentioning

confidence: 99%

Monochromatic LEDs based on perovskite quantum dots: Opportunities and challenges

et al. 2019

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Perovskite quantum dots (QDs) are emerging as one of the most promising candidates for the monochromatic light‐emitting diodes (LEDs) approaching the Rec. 2020 color gamut due to their extremely narrow emission bandwidth. Another important aspect are the high photoluminescence quantum yield (PLQY) values that can be obtained either in solution or thin films making these materials as promising candidates for optoelectronic applications such as LEDs or solar cells. Considerable research efforts in chemistry, chemical engineering, solid‐state physics, and material sciences have been made in the past years. The new opportunity in the field of semiconductor quantum dots is still in the beginning phase and is expected to remain active in the following years. Here, in this invited commentary, we briefly discuss and summarize the opportunities and challenges in both fundamental and technological aspects, based on our work and the recent work in this field.

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Realizing Rec 2020 color gamut with quantum dot displays

Cited by 284 publications

References 36 publications

Ultrawide color gamut LCD display with CdSe/CdS nanoplatelets

Ultrawide color gamut LCD display with CdSe/CdS nanoplatelets

Light‐Emitting Diodes with Cu‐Doped Colloidal Quantum Wells: From Ultrapure Green, Tunable Dual‐Emission to White Light

Monochromatic LEDs based on perovskite quantum dots: Opportunities and challenges

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