LG kicks off work on quantum dot TV
OLED? Old hat. QLED is where it's at
LG is to co-operate in the development of quantum dot-derived LED TV displays capable of generating "brighter, richer colours" while consuming a fraction of the energy of today's LEDs.
The South Korean giant said it will work with QD Vision, the US developer of the electroluminescent quantum dot LED - aka QLEDs. The two will try to figure out how to build QD's sub-pixels into a large, flat-panel display matrix.
Quantum dots are semiconductor materials in which the electrons and positive holes are energetically confined in three spatial dimensions. They exist in nanocrystal structures made using a chemical deposition processes.
A QD Vision QLED array
It's a tricky notion to get your head around unless you're a quantum mechanics boffin, but the upshot is that you apply a voltage to the things and they emit light. Crucially, the voltage is very low, and the light is of a very tight frequency band, resulting in very specific, accurate colours.
Combine electroluminescent quantum dot and a control mechanism and you have a QLED. QD has red, green, blue and yellow sub-pixel QLEDs that can be combined into a single, colour pixel.
Accurate colours? Oh yes
Like OLEDs, QLEDs don't require a backlight, but being inorganic they are more stable than OLED pixels. QLED colours are 30-40 per cent more intense than OLEDs can produce, says QD. Since they generate light of a specific colour, they don't require filters to be placed in front of them, which, like the absence of a backlight, will allow very thin screens to be made from QLEDs. And cheaper ones too.
Indeed, QD reckons its QLEDs will not only be printable, but also able to be laid down on flexible substrates.
So, a future comprising bright, bendy low-energy screens beckons? That's the theory, and LG's money and display manufacturing skills will be used to put it to the test. ®
Right! If these thingies are coming along soonish I might have to nurse my current telly for a couple more years. Fingers crossed we'll see these displayys sooner or later.
If you have CRT wait 6 months/ 1 year before buying LCD. HD Freeview is comming and if you don't have a HD tele already you might as well wait for one with a HD Freeview tuner in it at a reasonable price.
They'll have a cyan Pixel and the year after it'll be magenta... then no doubt the industry will introduce a grey pixel too...
meanwhile the camera' still only see in RGB. oops had they forgotten to do the cameras?
Depends what you own
If you own a CRT screen you're probably better off with an LCD or Plasma.
Buy a mid price TV now and wait for something better to come along. I'm quite chuffed with my 42 inch LG LCD TV, it was £499 and is much better than the 32 inch LCD it replaced (which cost over £700).
Another technology that we wont see (or will only see on smartphones or iPod Nanos) for a decade or more.
Didn't they say the same thing about being able to print OLED TVs on substrates cheaply and easily without changing the LCD production process significantly five years back now? We're still waiting on cheap OLED tellies.
At least we can now drool over the tech as it emerges, and we have a cool new acronym. yay.