Quantum dots. I do not think there have been a cooler reputable name a TV technology ever. What they is capable of doing and how they jobs are even cooler.
The claim, by virtually every TV manufacturer at CES this holiday season, is designed for better, more lifelike color. Some also talk up improved efficiency -- better brightness for similar power -- that leads to improved contrast.
Each company is performing quantum dots a trifle differently, nevertheless the results should be similar. More lifelike color can be done.
Here's how they work, and what they can do.
Couple of years ago I wrote Exactly what Quantum Dots, and how could guide the following TV?. At the time, there were just a single quantum dot display, the Sony W900A (2014's X900B would not have QD).
The main things have changed, some have stayed the identical. So you will see a little overlap here with that article, but mostly this really is many new info good multiple upcoming models with QD.
Just what what?
Quantum dots are microscopic nanocrystals that glow a unique wavelength (i.e. color) when given energy. The precise color produced by the QD will depend on its size: larger longer wavelengths (redder colors), smaller for shorter wavelengths (bluer). What a bit of an oversimplification, but that is principle idea.
Specific wavelengths of color is what we have to great a photo over a television. Using the three primary colors of red, green, and blue, we can mix an entire rainbow of teals, oranges, yellows, plus more.
Plasma and CRT televisions used phosphors to generate red, green, and blue. All LCDs use color filters to perform the same.
You can find multiple purposes of QDs inside a display.
Method 1: Tubes
After we brought up QDs last time, this became the technique used, whilst still being is at several cases (not Samsung or LG, but a majority of in the others).
The tv screen is edge-lit with blue LEDs. As you're watching LEDs is really a tube of red and green quantum dots. The blue LEDs create blue light, along with the energy with the QDs to make green and red light.
This diagram is often a top-down view of just one side of two edge-lit LCDs (the top of each and every could be the front, bottom is the back). The upper image shows a normal "white" LED (blue, with yellow phosphor). The low image may be the method found in Sony's Triluminos: a blue LED that passes through red and green quantum dots. This light bounces off of the light guide, and out throughout the liquid crystal and other layers as being a regular Lcd television.
QD Vision
The leading benefit to this process, according to its proponents, is lower cost. You only need enough QDs to fill some small tubes. Generally edge-lit TVs, there are just two of those on both sides.
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