Does the tech exist (even experimentally) that would allow the frequency of individual pixels to be adjusted to match real color to form a single pixel of color, as opposed to the current “combination” of RGB diodes?
Update:
Yes, I realize pixels are composed of a combination of fixed colors: red, green, and blue… I said that. Thus, “pixels” do not have a single fixed color.
I’m asking if tech exists that would allow individual, whole pixels to produce a variable frequency so that the entire pixel could just be “frequency x” …to better match real color.
Update :
Frequency/Wavelength… inversely they’re the same thing.
Anyhow, yes. Experimentally, how is the science on this going along?
Update :
Seems easy enough to do with sound.
Update :
Saturation filter on top, spectral color in middle, and a white backlight…
Update :
“Saturation” filter??? Sorry. Just have the backlight.
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It’s impossible with a single frequency, because that way you could not reproduce any gray shades (including white) nor any colors with less saturation values.
Source(s): Human eye color perception
You mean the frequency of the light (more commonly expressed as its wavelength)? No, I’ve never heard of an electronic device that can produce light of any desired wavelength. In science labs it still has to be done the way Newton did it – by splitting white light using a prism or diffraction grating.
Natural light from most objects is a spectrum, not just a single wavelength, so each element of your display would have to be able to reproduce that spectrum accurately.
Edit:
It is easy enough to create a defined frequency spectrum with sound because we can model a sound wave as an electronic signal. We can create literally any sound wave with any frequency spectrum, then send it to a loudspeaker and there you have it. Sound waves are in the frequency range – , Hz which electronic circuits can handle easily.
We can also do it with radio signals to some extent, depending on the frequency. Up in the GHz range electronics starts to struggle with anything other than a simple waveform like a sinewave or digital signal.
Light is up in the THz range; there is no electronics that can cope with that. It will probably take the invention of a whole new technology to do what you are asking. The need that will drive the invention of that technology will be to build faster computers, not displays that look slightly better than the ones we already have.