Quote:
Originally Posted by Nate the great
They are RGB LEDs, not orange. That's how the color can go from yellow to almost red.
And yes, when you turn the frontlight all the way up, all parts of the RGB LED is lit.
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I don't think the new eReaders use RGB LEDs any more. (Just been reading up on this.) What they use is cold white and warm white LEDs interspersed. The Tolinos with Smart Light look almost exactly like the Nook Glowlight 3 and new Glowlight Plus. Apparently (according to ZodWallop) what makes them different from the new Kobos (Clara HD, Libre H2O and Forma) is that that the Tolinos and Nooks turn off the warm white LEDs at full "cool" setting and turn off the cold white LEDs at full "warm" setting. Apparently that's why the Tolinos and Nooks can produce bluer "white" and oranger orange (if "oranger" is a word). It looks like the modern Kobos have the same system, so they should be able to produce the same range. (Just by looking at the PocketBook screens, they look like they also work like the Nooks.)
The darker orange tone is produced by intensity and the fact that there is no blending of the cold white at the highest setting on the Tolinos and Nooks (and probably the PocketBooks).
A couple YouTube videos... one shows a comparison between RGB LEDs and white LEDs, the other a comparison of cold, nuetral and warm white LEDs. I'm guessing these were made by a company selling LEDs.
https://www.youtube.com/watch?v=ozDykmcH7CA
https://www.youtube.com/watch?v=88DAEsq54XU
If any of this is more than an assumption, then the Kobo should be able to work like a Nook or Tolino simply by changing settings in software. (I think it should be possible.) The question is, why doesn't Kobo want to do this? (Also, if this is true, could a patch be installed to do this?)