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Originally Posted by rkomar
Thanks! It works quite differently from what I thought I understood from old cartoons. I was under the impression that the pigment was more or less fixed in the gel with the black and white on opposite sides, and that the gel spun around as a whole within the cell. Clearly, that's not what is happening.
I'm also still not clear about why the ghosting remains. Even if there is some gray in the white cells next to black ones in the original image, why don't they just become white when the next image is displayed? Does the display not try to change pixels whose value hasn't changed? Or, as I mentioned in my last message, is it a case of some kind of internal resistance not allowing such fine-grained control?
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If you apply a voltage between two plates and place a charged particle between them the particle would move towards the plate with the opposite charge with a constant acceleration which is proportional with the strength of the electrical field between the plates. For example you would have negative charges on one plate, a negatively charged particle and positive charges on the other plate so the particle moves away from the negative charges on one plate and towards the positive charges on the other plate. In the case of eink you have many charged particles between the plates and they will have an effect on the strength of the field.
In the case of ghosts you had the charges move between the plates so if you apply the same voltage you have negative charges on a plate, positive charged particles inside the capsule on that side of the plate, a mixture of positive and negative charged particles in the middle, negative charged particles on the other side of the capsule then the positive charges on the other plate. The particles in the middle are going to move very slowly towards the plates with the opposite charge because in effect the electric field is lower.
If you apply voltage with the opposite sign, then the charged particles on the side of the plates will have the the same signs as the charges on the plates and the charged particles will be under a stronger field and move faster.
Quote:
Originally Posted by toronado
Wow, thanks for posting that video. It explains a lot. At the end of the video (around 0:44) you can see a swelling and contracting of the edge of the shape (font/character) being displayed. The amount of size fluctuation seems roughly equivalent to the width of the "ghost" outlines that appear when they are running that number counter.
Appears something is "bleeding" around the edges there that is not being controlled. If the technology could be developed that would control this more precisely, perhaps the ghosting could be completely eliminated.
As it is, this technology seems fundamentally flawed. Sorry if I'm being too much of a perfectionist, but that's just the way it seems to me.
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It is flawed now, but it can be improved.