Screens very different K4/KT

[JoHunt]

Originally Posted by JSWolf

Since this difference does exist, I would think it would be in Amazon's best interest to check each Kindle before it gets sent out.

I think it is very admirable that you, of all people, are looking out for Amazon's interests and are trying to increase their sales Perhaps you should contact them directly with your suggestion?

[JSWolf]

Originally Posted by AnemicOak

eInk devices from all manufacturers can have differences in screen appearance based on the individual panels.

I realize that. That is why Amazon should be looking at the screens before shipping to make sure the screens are up to standard. The demo KT I saw was not of an acceptable standard.

[JSWolf]

Originally Posted by geekmaster

The only realistic method to compare two units is to let them sit together awhile to equalize temperatures, then to exercise the screens by viewing multiple pages, then go to the page to compare and force multiple screen full flash updates. This can be done in a number of ways, such as taking a screen snapshot, or selecting and deselecting the menu.

Any other conclusion from comparing two units is a silly waste of nonsense.

These two Kindles where both in demo mode in the same store where the temperature was not too hot or cold. I did use both and went to menus and flipped multiple pages, change font settings and made sure the screens were both updated. These two demo units did meet the requirements stated above. One screen was just unacceptable while the other was acceptable.

[Rizla]

Originally Posted by geekmaster

Any other conclusion from comparing two units is a silly waste of nonsense.

Is it possible to waste nonsense if it is without value? And is that why you describe is as silly?

[geekmaster]

Originally Posted by Rizla

Is it possible to waste nonsense if it is without value? And is that why you describe is as silly?

You should not waste your silly nonsense. You will need ALL of it when you have children (or grandchildren). Or you could use it in a stand-up comedy club.

P.S. Don't burn your bridges at both ends!

Actually, a lot of the perceptible difference in the new kindles is caused by the high specular reflectivity of the front bezels. This requires that they be compared in the same position, at the same angle, from the same viewpoint, or the bezels will appear to be different shades of bright or dark gray, affecting the perceived brightness and contrast of the eInk display.

Also, each display needs to be "exercised" with multiple full flash updates (10 to 12 is recommended) to reduce oil viscosity and to detach and break up zinc oxide clumps, before doing an honest visual comparison.

[JSWolf]

Originally Posted by geekmaster

You should not waste your silly nonsense. You will need ALL of it when you have children (or grandchildren). Or you could use it in a stand-up comedy club.

P.S. Don't burn your bridges at both ends!

Actually, a lot of the perceptible difference in the new kindles is caused by the high specular reflectivity of the front bezels. This requires that they be compared in the same position, at the same angle, from the same viewpoint, or the bezels will appear to be different shades of bright or dark gray, affecting the perceived brightness and contrast of the eInk display.

Also, each display needs to be "exercised" with multiple full flash updates (10 to 12 is recommended) to reduce oil viscosity and to detach and break up zinc oxide clumps, before doing an honest visual comparison.

I've already told you that these two Kindles have met your requirements. So what do you have to say now?

[Rizla]

There's no smoke without fire. A lot of kindle owners are are noting a noticeable difference in the quality of e-ink screens between identical or similar Kindle models. I have no doubt they are right. Why some people are so ardently denying it is there own business.

The same controversy does not exist to the same level with other devices. What I suspect has happened is that Amazon is paying less for their screens by not insisting on the highest quality control standards. That is why people are seeing such a wide variety in quality. There are excellent and not so excellent screens in the same batch. I guess Amazon figures that most people won't notice the difference, or if they do, they won't question it.

Of course that's speculation, but it explains what people are reporting. In any case, the poorest grade pearl screen is probably more than adequate to read on. But for the connoisseur, it could be annoying.

[JSWolf]

Originally Posted by Rizla

Of course that's speculation, but it explains what people are reporting. In any case, the poorest grade pearl screen is probably more than adequate to read on. But for the connoisseur, it could be annoying.

I had a Sony Reader PRS-505 and it was the first reader to use Vizplex. The screen on that was better then the screen on the KT demo unit I saw at Walmart.

[Blossom]

One theory that was given in the other thread said it could be possible Amazon's is using a few test units settings to calibrate a batch and with the way eINK varies there are some that get calibrated wrong which explains why my K4 looks the way it does.

[Rizla]

Originally Posted by Blossom

One theory that was given in the other thread said it could be possible Amazon's is using a few test units settings to calibrate a batch and with the way eINK varies there are some that get calibrated wrong which explains why my K4 looks the way it does.

If they're all running the same software, then I would expect them to look the same. Otherwise it's a hardware difference. Notably I read the Nook screen was improved with a software upgrade, but the screens improved as one.

If you haven't already done so, might I suggest you install bold fonts to improve clarity. I recently read about a font called Amasis on these forums that would do the trick.

[Blossom]

Originally Posted by Rizla

If they're all running the same software, then I would expect them to look the same. Otherwise it's a hardware difference. Notably I read the Nook screen was improved with a software upgrade, but the screens improved as one.

If you haven't already done so, might I suggest you install bold fonts to improve clarity. I recently read about a font called Amasis on these forums that would do the trick.

I have Amasis installed and rav about it on here alot. It helps alot but doesn't fix the problem completely if you are switching back and forth from the K3 to the K4 you just can't help notice the difference.