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Kindle Touch screen errors in the heat/sun


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Showing 1-25 of 40 posts in this discussion
Initial post: Mar 17, 2012 5:11:32 AM PDT
I have noticed this weird problem twice since December. When I sit outside on warmer days, the screen starts flickering. It's quite specific -- when I turn a page, the new page appears, then the old page appears for a second, then the new page appears again. Restarts don't make a difference. Once I get the Kindle back inside a while later, it starts working properly again. Has anyone else experienced this issue? I think it's the heat outside (we are talking about 70 degrees, not Sahara dessert) since that's the only time I've seen it happen.

Posted on Mar 27, 2012 11:31:10 AM PDT
I'm the only one experiencing this?

Posted on Apr 3, 2012 1:10:53 PM PDT
Bump. It happened AGAIN yesterday, inside a non-air-conditioned room (about 84 degrees).

In reply to an earlier post on Apr 3, 2012 1:12:40 PM PDT
quilt lover says:
I don't think it's the heat, I think it is the screen refresh.

Posted on Apr 3, 2012 1:15:48 PM PDT
I tried toggling the "full refresh on every page turn" and that did nothing. This ONLY happens in hot conditions.

In reply to an earlier post on Apr 3, 2012 1:22:03 PM PDT
quilt lover says:
Yeah, but 84º isn't hot. It's barely warm, almost perfect. Come to AZ in the summer, I'll show you hot ;)

Posted on Apr 3, 2012 1:22:51 PM PDT
I realize that. The only conditions that were different when this issue was happening was higher-than-average heat conditions.

In reply to an earlier post on Apr 3, 2012 1:26:09 PM PDT
Dragi Raos says:
Caroline, search a bit - I think there were previous reports of strange behavior of e-ink Kindles heated by direct sun, but I don't remember details.

Posted on Apr 3, 2012 1:28:41 PM PDT
I've done some searches without any truly helpful results -- I recall reading about eink fading in sunlight, but not the exact refresh errors I'm seeing.

In reply to an earlier post on Apr 3, 2012 1:31:32 PM PDT
quilt lover says:
Have you tried calling Kindle customer service? I was thinking it might be in the book you are reading, but I looked back & you said you've been noticing the problem since December, so that's out. I'm pretty sure they'd replace it for you if you give them a call.

In reply to an earlier post on Apr 3, 2012 1:36:48 PM PDT
Caroline - The refresh you are seeing is normal. It usually happens really fast and in the case of the Touch not on every page turn. Heat can and does affect the speed at which the screen refreshes. It was a problem with the KK/K3 in the beginning. A software update fixed it for the most part but page turns are still slower in the sun.

In reply to an earlier post on Apr 3, 2012 1:39:04 PM PDT
Dragi Raos says:
Ah, yes, you are right, it was about fading.

In reply to an earlier post on Apr 3, 2012 1:40:02 PM PDT
Dragi Raos says:
Funny - I see they are sluggish in cold weather (e.g. when I leave my K3 in my car on a winter day).

Posted on Apr 3, 2012 1:47:01 PM PDT
Chatting with CS now (can't get on the phone right now). So far, no help. They want me to try a factory reset but 1) I know that's not worth the hassle and 2) I'm not experiencing the issue right now, only in the heat (as explained).

In reply to an earlier post on Apr 3, 2012 1:49:03 PM PDT
@Dragi - HaHa. I don't do cold weather.

Posted on Apr 3, 2012 3:37:19 PM PDT
DS says:
I have also experienced the page refresh happening while in the sun, even though it is "off" in the settings.

In reply to an earlier post on Apr 3, 2012 11:41:26 PM PDT
Dragi Raos says:
:o)

California, I see. So, you stay out of the mountains in winter...

Who's the cutie on your profile?

In reply to an earlier post on Apr 3, 2012 11:53:13 PM PDT
Dragi Raos says:
The effects seen at higher temperatures would mean that the electronics driving the display "senses" changes in viscosity probably experienced by the liquid in e-ink capsules as temperature changes. Strange. Dielectric constant probably also changes (and could be sensed relatively easily), but this much?

Googling produced one of two mentions of screens being sluggish bellow freezing, because of higher viscosity of the fluid, but nothing about hot weather effects.

BTW, I wouldn't say our Kindles are this abuse-proof:

http://www.eink.com/rugged.html

In reply to an earlier post on Apr 4, 2012 1:01:36 AM PDT
Last edited by the author on Apr 4, 2012 1:18:22 AM PDT
Dorsie says:
Heat is basically infrared light, and the Kindle Touch's screen operates by sensing disruptions to an infrared grid generated from under the bezel. It doesn't surprise me that small waves of heat in air crossing the screen might cause a disuption or distortion of the grid, just as heat waves rising from a hot surface distort the image you see on a hot summer roadway.

You should call Amazon about it, and ask for a Kindle specialst. The Nook Simple Touch has been out since last June (I own both), but I never saw any Nook forum complaints about similar problems during hot weather, and they use the same Pearl touch screen.

ETA: Rated high operating temperature is 95 degrees F.

Posted on Apr 4, 2012 1:59:31 AM PDT
Denis Powell says:
Dorsie, that's an interesting point about the possibility of waves of air at different temperatures causing diffraction of the infra-red beams. I don't know how likely it is to happen so I'm hoping the idea is discussed further.

It might also be worth noting that the 95 degree maximum safe temperature is actually below normal body heat so if your Kindle feels warm to the touch it might be too warm. My KK3G and K4 both have slow page turns at low winter temperatures even when those are several degrees above the Guide minimum so I suspect it's a progressive thing. It isn't quite so obvious at higher temperatures but when it occurs I know it's time to find some shade.

In reply to an earlier post on Apr 4, 2012 2:28:49 AM PDT
Dragi Raos says:
Interesting idea, dorsie, but that would apply to touch-sensing, not refresh...

In reply to an earlier post on Apr 4, 2012 2:44:13 PM PDT
Last edited by the author on Apr 4, 2012 2:44:57 PM PDT
Dorsie says:
I know, and this is the first I've read about this problem, even though this screen has been in use by other vendors for over a year, long enough to test it in hot weather. That's why I think the OP should call Amazon and get a specialist.

I also subjected my Nook Simple Touch to a hair dryer and was unable to get any similar results.

Thanks for the comment. I don't know who DV'd you, but I up-voted to counteract. :-)

ED: sp

In reply to an earlier post on Apr 4, 2012 3:12:21 PM PDT
I used to live in the mountains and I've done my time in the snow. I prefer not to deal with anymore.

The cutie on my profile is my new granddaughter. She's now 3 weeks old. :)

In reply to an earlier post on Apr 4, 2012 3:14:48 PM PDT
Dragi Raos says:
She is adorable!

In reply to an earlier post on Apr 4, 2012 3:16:12 PM PDT
Thank you!
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Discussion in:  Kindle forum
Participants:  15
Total posts:  40
Initial post:  Mar 17, 2012
Latest post:  Aug 19, 2013

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