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Originally Posted by ath
I was thinking that the integrity of those 'pixel' microcapsules containing the pigment subcapsules might be lost eventually. (I think there has been a note somewhere that spacing between upper and lower surface needed to be maintained. An accidental hit might do it ...) If it happens, the subcapsules would probably slobber around on the electrode layer, and that might upset the working of the pixels in that area. But perhaps that was older technology, and the problem is gone now.
Another possibility is that the subcapsules lose their charge ...
If it is one, it will come to light fairly soon. I don't know how keen Sony would be to adopt unproven technology, but I dare say the devices would have at least 5 years of life on general principles.
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5 years would be more than enough. Within 5 years I will own a 32 bit color e-ink device that you can roll up.
