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It is the same technology. Samsung is just compensating the deficiency of Blue QD by using conventional Blue LEDs in their QLED TVs (creating white light with G
by rickdeckard 3y ago
It is the same technology. Samsung is just compensating the deficiency of Blue QD by using conventional Blue LEDs in their QLED TVs (creating white light with Green and Red QD as you wrote as well). The point is that the degradation of QD material still exists, and along with the usual degradation of the Blue LED, also the QD-material will degrade and shift over time.
The research paper describes the lifetime and degradation in a uniform setup, as it's research for foundational QD-tech, not for TV panels.
There's alot of research ongoing to improve QD lifetime as a foundation for new LED technology. Here's one from Dec.2022 [1], and one from as late as 2023 [2], all with the subject of solving performance stability of the technology to become on-par (!) with common LED.
[1] https://pubs.acs.org/doi/full/10.1021/acsaelm.2c01351 https://pubs.acs.org/doi/full/10.1021/acsaelm.2c01351
[2] https://pubmed.ncbi.nlm.nih.gov/36990060/ https://pubmed.ncbi.nlm.nih.gov/36990060/