High-efficiency quantum dot remote phosphor film

High-efficiency quantum dot remote phosphor film

We report a high-efficiency quantum dot (QD) film for high color gamut edge-lit LCD backlights. On the film's input surface, an array of asymmetric microprisms is used to preserve the large off-axis angle of the incident blue light. On the exit surface, the retroreflective microprisms retain bl...

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Veröffentlicht in:Applied optics (2004) 2015-05, Vol.54 (15), p.4617-4622
Hauptverfasser: Hong, Qi, Lee, Kuo-Chang, Luo, Zhenyue, Wu, Shin-Tson
Format: Artikel
Sprache:eng
Schlagworte:
Arrays
Asymmetry
Colors (materials)
Liquid crystal displays
Phosphors
Preserves
Quantum dots
Wavelengths
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container_end_page 4622
container_issue 15
container_start_page 4617
container_title Applied optics (2004)
container_volume 54
creator Hong, Qi
Lee, Kuo-Chang
Luo, Zhenyue
Wu, Shin-Tson
description We report a high-efficiency quantum dot (QD) film for high color gamut edge-lit LCD backlights. On the film's input surface, an array of asymmetric microprisms is used to preserve the large off-axis angle of the incident blue light. On the exit surface, the retroreflective microprisms retain blue light inside the film. The extended optical path effectively enhances the blue light's probability to hit QDs and generate downconverted wavelengths. When not using any volume scattering particles, fewer QDs are needed to re-emit higher power green and red light, which helps lower the material cost.
doi_str_mv 10.1364/AO.54.004617
format Article
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source Alma/SFX Local Collection; Optica Publishing Group Journals
subjects Arrays
Asymmetry
Colors (materials)
Liquid crystal displays
Phosphors
Preserves
Quantum dots
Wavelengths
title High-efficiency quantum dot remote phosphor film
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