Quantum Dot Displays

Discussion in 'Science and Technology' started by Wu Li Heron, Feb 20, 2017.

  1. Wu Li Heron

    Wu Li Heron Members

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    https://www.youtube.com/watch?v=weZaIQ8c-9k

    http://www.nanosysinc.com/dot-color-archive/2016/5/4/samsung-drops-oled-for-tv

    Phillips TV has recently abandoned the quantum dot market, while Samsung has emerged with their own technology that, theoretically, can be improved upon for decades to come to make it use, for example, 300 times less energy than conventional displays today, while still producing enough nits or brightness on demand to make you swear you are almost looking through a window out on a sunny day. Like incandescent bulbs, quantum dots convert current into a spark of light making them capable of producing up to 2,000-3,000 nits of brightness with actual daylight ranging from about 3,000 nits to 7,000. Just as importantly, they can produce deep blacks similar to OLEDs, have higher contrast, can span the entire color gamut, and are significantly cheaper to manufacture. Which makes them a perfect choice for something like a gaming monitor or TV which can even have as little as 1ms of latency and run at 144hz. Current gaming monitors are becoming fast enough and produce decent quality pictures, however, this will be the first to actually produce realistic daylight brightness and the complete color gammut for things such as virtual reality glasses and monitors for even laptops that use little power to put out all that light.

    These displays can combine what is essentially the 4nm light bulbs of quantum dots with, otherwise, ordinary LCD technology. Of course, as with light bulbs, making them cheap and environmentally friendly as well will take time. Being cheaper to manufacture and intrinsically more efficient means manufactures have more ways of making minor trading-offs in efficiency to tweak the technology for further improvements and can slowly arrive at the better compromises possible with the emerging technology. Notably, the newest approaches including stacking multiple layers of dots and leveraging the efficiency of quantum tunneling where how they are all collectively spaced in every dimension plays a role in how efficient they can become and suggesting self-assembling approaches, while the physics of layering different materials on the nanoscale has seen dramatic improvements in recent years.

    These current models Samsung has produced are in response to LG's decision to promote OLED technology and are all extremely expensive, however, the technology should improve by leaps and bounds within the next three years and should start to flood different markets. Some have said the next fight for displays and TVs is how many nits they can produce, as well as, how efficient they become. The burning question is what LG still has up their sleeve to possibly bring down the price of OLED displays and how Samsung will refine their own technology.
     

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