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“Paperwhite” display, which offers more contrast and brightness Brighter? As far as I know it doesn't have any backlight, so how can it be brighter?

by BoppreH 14y ago

deleted 14y ago
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deleted 14y ago
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tnuc 14y ago
It has front light. Thus it is brighter.
- BoppreH 14y ago
  If the previous one had no light and this one has, "brighter" is a strange way to describe it, isn't it?
  - nostromo 14y ago
    Now ∞% brighter!
  - joshuacc 14y ago
    Not at all. It's very common to refer to papers as brighter and darker. This analogous use for an electronic reading surface seems very natural to me.
  - Confusion 14y ago
    Everything that reflects light has brightness. Something doesn't need to emit its own light to have brightness. However, if it emits light of its own, it will usually appear brighter. [1] http://en.wikipedia.org/wiki/Brightness http://en.wikipedia.org/wiki/Brightness
- moskie 14y ago
  @BoppreH what word would you use instead?
  - BoppreH 14y ago
    Don't mention it? Citing better contrast makes the point clear enough.
angrycoder 14y ago
"...it has 25 percent more contrast than the Pearl screens in the current Kindles and, with 212ppi, it has a 62 percent higher resolution. It relies on a fiber optic like system to direct light down onto the display, not unlike the Nook but, from what we can see, the color is much whiter." [1] [1] -http://www.engadget.com/2012/09/06/kindle-paperwhite/ http://www.engadget.com/2012/09/06/kindle-paperwhite/
jaggederest 14y ago
It can still have a higher contrast ratio. Flat black vs flat white, whereas previous versions were not quite flat black and not quite flat white. If you look at this page: https://sites.google.com/a/etccreations.com/kdesignworks/ https://sites.google.com/a/etccreations.com/kdesignworks/ It's clear that the existing Kindle is grey-to-grey with a moderate contrast ratio.
MartinCron 14y ago
It can be brighter in the same way that real dead-tree paper can be brighter. If you go into an office supply store, look at the paper selection, you'll notice that some shades of "white" are much, much brighter white than others.
jonknee 14y ago
> Brighter? As far as I know it doesn't have any backlight, so how can it be brighter? It does have a backlight, but it can be brighter because the pages are more white.
blehn 14y ago
Maybe "lightness" or "whiteness" would be more accurate because it's a matter of reflectance and not luminance, but brightness is already commonly misused in that context, so I don't think this is particularly egregious. Paper has a brightness rating, afterall. http://en.wikipedia.org/wiki/Bleaching_of_wood_pulp#Paper_brightness http://en.wikipedia.org/wiki/Bleaching_of_wood_pulp#Paper_br...
rorrr 14y ago
Just like whiteboard is brighter than blackboard.

“Paperwhite” display, which offers more contrast and brightness Brighter? As far as I know it doesn't have any backlight, so how can it be brighter?

by BoppreH 14y ago

“Paperwhite” display, which offers more contrast and brightness Brighter? As far as I know it doesn't have any backlight, so how can it be brighter?

deleted 14y ago

[deleted]

deleted 14y ago

[deleted]

tnuc 14y ago

It has front light. Thus it is brighter.

BoppreH 14y ago
If the previous one had no light and this one has, "brighter" is a strange way to describe it, isn't it?
- nostromo 14y ago
  Now ∞% brighter!
- joshuacc 14y ago
  Not at all. It's very common to refer to papers as brighter and darker. This analogous use for an electronic reading surface seems very natural to me.
- Confusion 14y ago
  Everything that reflects light has brightness. Something doesn't need to emit its own light to have brightness. However, if it emits light of its own, it will usually appear brighter. [1] http://en.wikipedia.org/wiki/Brightness http://en.wikipedia.org/wiki/Brightness
moskie 14y ago
@BoppreH what word would you use instead?
- BoppreH 14y ago
  Don't mention it? Citing better contrast makes the point clear enough.

angrycoder 14y ago

"...it has 25 percent more contrast than the Pearl screens in the current Kindles and, with 212ppi, it has a 62 percent higher resolution. It relies on a fiber optic like system to direct light down onto the display, not unlike the Nook but, from what we can see, the color is much whiter." [1] [1] -http://www.engadget.com/2012/09/06/kindle-paperwhite/ http://www.engadget.com/2012/09/06/kindle-paperwhite/

jaggederest 14y ago

It can still have a higher contrast ratio. Flat black vs flat white, whereas previous versions were not quite flat black and not quite flat white. If you look at this page: https://sites.google.com/a/etccreations.com/kdesignworks/ https://sites.google.com/a/etccreations.com/kdesignworks/ It's clear that the existing Kindle is grey-to-grey with a moderate contrast ratio.

MartinCron 14y ago

It can be brighter in the same way that real dead-tree paper can be brighter. If you go into an office supply store, look at the paper selection, you'll notice that some shades of "white" are much, much brighter white than others.

jonknee 14y ago

> Brighter? As far as I know it doesn't have any backlight, so how can it be brighter? It does have a backlight, but it can be brighter because the pages are more white.

blehn 14y ago

Maybe "lightness" or "whiteness" would be more accurate because it's a matter of reflectance and not luminance, but brightness is already commonly misused in that context, so I don't think this is particularly egregious. Paper has a brightness rating, afterall. http://en.wikipedia.org/wiki/Bleaching_of_wood_pulp#Paper_brightness http://en.wikipedia.org/wiki/Bleaching_of_wood_pulp#Paper_br...

rorrr 14y ago

Just like whiteboard is brighter than blackboard.