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10-03-2023, 03:53 PM | #1 |
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Can bright spots/light pinholes pixels degenerate into larger areas?
I recently got a Boox Tab Ultra where I noticed in the middle of the screen a "light pinholes" (dead pixel) and some inverted pixels. From your experience, over time these defects can expand on the display and become bigger "holes"?
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10-03-2023, 06:58 PM | #2 |
Wizard
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Usually the bigger problem is creeping rot from the edges.
That is usually due to mechanical failure. I've been fortunate with a half dozen Eink devices to have never seen a dead pixel. |
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10-04-2023, 12:15 AM | #3 |
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10-04-2023, 08:01 AM | #4 |
Wizard
Posts: 2,403
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Join Date: Feb 2012
Device: Nook NST, Glow2, 3, 4, '21, Kobo Aura2, Poke3, Poke5
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It's like that other post.
It's true of LCD and Eink panels. Dropping a device starts the process of delaminating the layers in the panel at an edge. I can't say whether it's corrosion of the transparent electrodes or simply propagation of the delamination. Over time it will usually get worse. I believe dead pixels are more statistical. Lone pixels won't infect their neighbors. |
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