Look For 4K Ultra HDTVs To Get Brighter, Cheaper
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Posted On: 01/06/2017 6:12:56 AM
Look For 4K Ultra HDTVs To Get Brighter, Cheaper
Nanosys and Samsung are developing a hybrid technology called QLED , which will combine many of the benefits of quantum dot-based LCD TVs with self-emissive characteristics of OLED technology. This is expected to lead to brighter displays with deeper black levels and a wider color gamut. But market introduction isn’t expected before 2019.
QLED uses a blue OLED back light instead of white used today along with a layer of selectively patterned red and green quantum dots. This replaces brightness-restricting color filters with quantum dots producing red, green and blue light. Photons from the blue light source excite red quantum dots to produces a 2.8x improvement in system efficiency over color filters.
Similar technology is being developed by Nanoco Technologies in conjunction with licensees Dow, Merck and Wah Hong .
For Samsung, Nanosys has developed quantum dots free of toxic cadmium to comply with the European Union’s Restriction on Hazardous Substances (RoHS). But this approach makes it difficult to meet Rec. 2020, because the blue and the green primaries for Rec. 2020 are very close together. Nanosys has developed Hyperion quantum dots that mix cadmium-free red and cadmium-based green quantum dots into a single film that produces narrower green. The result produces cadmium levels below 100 ppm to meet the RoHS directive
http://www.twice.com/look-4k-ultra-hdtvs-get-...aper/63888
......read something earlier on N-co bd about facilitiy in China involving TCL....Samsung. Right now the mkt seems to be a mix of Leap-Frog, Dance & Switch. It will be interesting to see the impact of QMC's film @ CES, (and Dance card partners after)
Nanosys and Samsung are developing a hybrid technology called QLED , which will combine many of the benefits of quantum dot-based LCD TVs with self-emissive characteristics of OLED technology. This is expected to lead to brighter displays with deeper black levels and a wider color gamut. But market introduction isn’t expected before 2019.
QLED uses a blue OLED back light instead of white used today along with a layer of selectively patterned red and green quantum dots. This replaces brightness-restricting color filters with quantum dots producing red, green and blue light. Photons from the blue light source excite red quantum dots to produces a 2.8x improvement in system efficiency over color filters.
Similar technology is being developed by Nanoco Technologies in conjunction with licensees Dow, Merck and Wah Hong .
For Samsung, Nanosys has developed quantum dots free of toxic cadmium to comply with the European Union’s Restriction on Hazardous Substances (RoHS). But this approach makes it difficult to meet Rec. 2020, because the blue and the green primaries for Rec. 2020 are very close together. Nanosys has developed Hyperion quantum dots that mix cadmium-free red and cadmium-based green quantum dots into a single film that produces narrower green. The result produces cadmium levels below 100 ppm to meet the RoHS directive
http://www.twice.com/look-4k-ultra-hdtvs-get-...aper/63888
......read something earlier on N-co bd about facilitiy in China involving TCL....Samsung. Right now the mkt seems to be a mix of Leap-Frog, Dance & Switch. It will be interesting to see the impact of QMC's film @ CES, (and Dance card partners after)
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