Digital BW, The Print

On 04/19/2012 04:47 PM, Paul wrote:
> Ernst Dinkla <e.dinkla@...> wrote:
>
>  > ...
>  > As written the Quantum Dot LEDs promises all we would like to see.
>  > ...
>
> I hope you're right, but the Wiki article is not encouraging with
> respect to a smooth spectral distribution: "Quantum-dot-based LEDs are
> characterized by pure and saturated emission colors with narrow
> bandwidth ..." http://en.wikipedia.org/wiki/Quantum_dot_display
>
> But, I'm sure there are lots of people working to perfect these light
> sources.


Check what QD Vision already has. There is a wider choice of colors to 
mix with different QD sizes and the conversion to visible light gives 
less energy loss than the phosphors so far could. The conversion is not 
into a narrow bandwidth. Cadmium free components too.

But a more interesting development is this discovery:
http://www.vanderbilt.edu/exploration/stories/quantumdotled.html
were the QDs are so small they excite a broader spectrum white light 
right away.

-- 
Met vriendelijke groet, Ernst

Dinkla Grafische Techniek
Quad, pi\ufffdzografie, gicl\ufffde
www.pigment-print.com