11-20-2012, 01:09 PM | #1 |
Addict
Posts: 235
Karma: 1355374
Join Date: Aug 2007
Device: iPad, iPhone, Kindle Voyage
|
Paperwhite screen solution...
I've had my Paperwhite since they were first shipped. It has never had a "bad" screen. Recently it started to show some small signs of color. It has always shown the little cones of light from the LED bulbs but this was new. I dug out my eyeglass cloth and cleaner, shut off the PW and carefully wiped the screen with the cloth after spraying some cleaner on the cloth, not the screen. Voila! My PW is back to essentially perfect. Others should try this and report. I have a funny feeling that this is the answer. |
11-20-2012, 01:37 PM | #2 |
Resident Curmudgeon
Posts: 73,983
Karma: 128903378
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
|
So are you thinking the fingerprints are causing the color hues?
|
11-20-2012, 01:52 PM | #3 | |
Wizard
Posts: 2,243
Karma: 7400001
Join Date: Mar 2009
Location: Circling Earth @ Mach .83
Device: Elipsa 2E, Sage, Forma, Libra 2, Clara 2E, Kindle Oasis3, Voyage
|
Quote:
|
|
11-20-2012, 01:54 PM | #4 |
Addict
Posts: 235
Karma: 1355374
Join Date: Aug 2007
Device: iPad, iPhone, Kindle Voyage
|
The hues remain...
|
11-20-2012, 01:55 PM | #5 |
eBook Enthusiast
Posts: 85,544
Karma: 93383043
Join Date: Nov 2006
Location: UK
Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6
|
The light diffuser is basically a diffraction grating. Colour fringing is inherent in the design.
|
11-20-2012, 02:00 PM | #6 |
Wizard
Posts: 2,243
Karma: 7400001
Join Date: Mar 2009
Location: Circling Earth @ Mach .83
Device: Elipsa 2E, Sage, Forma, Libra 2, Clara 2E, Kindle Oasis3, Voyage
|
|
11-20-2012, 02:01 PM | #7 |
Wizard
Posts: 2,243
Karma: 7400001
Join Date: Mar 2009
Location: Circling Earth @ Mach .83
Device: Elipsa 2E, Sage, Forma, Libra 2, Clara 2E, Kindle Oasis3, Voyage
|
|
11-21-2012, 06:05 AM | #8 |
Connoisseur
Posts: 53
Karma: 496648
Join Date: May 2010
Device: Sony PRS-600
|
|
11-21-2012, 06:10 AM | #9 |
I ♥ Calibre
Posts: 2,073
Karma: 5678911
Join Date: Aug 2011
Location: UK
Device: Kindle Oasis, Voyage, Sony PRS-350, Hudl2
|
If it's to do with the light, why is there not a similar problem with Kobo Glo's, don't they use the same kind of tech for the light guide? And why is it more apparent in some Kindle's and not others?
|
11-21-2012, 06:30 AM | #10 |
eBook Enthusiast
Posts: 85,544
Karma: 93383043
Join Date: Nov 2006
Location: UK
Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6
|
Differences in colour fringing represent tiny, tiny changes in things like the parallelism of the two faces of the diffusion layer. They're simply minute variations within the tolerances of the manufacturing process.
|
11-21-2012, 12:02 PM | #11 |
I ♥ Calibre
Posts: 2,073
Karma: 5678911
Join Date: Aug 2011
Location: UK
Device: Kindle Oasis, Voyage, Sony PRS-350, Hudl2
|
Ok that can explain why there is some variation (but I'd still argue that there is something going wrong in the worst cases, which are patently not just down to user perception). But do they not use the same tech in the Kobo Glo as they do the Paperwhite for the light guide, or do we not actually know that?
Clearly there is some difference with the Glo, as it simply doesn't appear to suffer from this issue at all? |
11-21-2012, 12:09 PM | #12 |
eBook Enthusiast
Posts: 85,544
Karma: 93383043
Join Date: Nov 2006
Location: UK
Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6
|
There's all sorts of different methods that can be use to diffuse light. Perhaps Kobo are using a different method. I honestly don't know.
I entirely agree with you that some PW screens will exhibit more colour fringing than others, but I do think it's basically a question of how sensitive or otherwise the user is to the effect. I think my PW is great, but I don't know whether I have a "good" one, or if the colour fringes simply don't bother me. I have seen a couple of others owned by people I work with, and they seemed just the same as mine to my eyes. |
11-21-2012, 02:54 PM | #13 |
Addict
Posts: 206
Karma: 1683142
Join Date: Nov 2012
Device: Kindle of many shapes, PIPBoy 3000
|
I have seen some that others claim to be horrible, but I didn't think they were that bad. Certainly worth replacing...
Mine is fine, though. |
11-21-2012, 03:01 PM | #14 |
Resident Curmudgeon
Posts: 73,983
Karma: 128903378
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
|
One thing that might be contributing is the capacitive touch layer. Maybe part of the problem is the light reflecting from the touch layer. The Kobo is still using IR touch so there is no layer between the light and the screen.
|
11-21-2012, 03:02 PM | #15 |
Resident Curmudgeon
Posts: 73,983
Karma: 128903378
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Paperwhite screen capture? | tomsem | Amazon Kindle | 11 | 10-07-2012 02:33 PM |
Possible solution for full screen images | erez213 | Kindle Developer's Corner | 242 | 06-20-2012 11:15 AM |
Innovative solution for e-Ink screen lighting | Papi | News | 48 | 12-13-2011 11:26 PM |
Neat solution for a misbehaving reader screen | Tunney | enTourage eDGe | 8 | 12-02-2011 03:07 AM |
Kindle DX screen broken no solution for Spain | sheilalayoli | Amazon Kindle | 4 | 09-17-2010 07:58 AM |