PB under the microscope

[Sil_liS]

Hi everyone

I bought an USB microscope and I wanted to see what the eink screens look like so here it is:


For gray I looked at what we are all familiar with: No 1 E-READER

[rkomar]

Can the microscope run in continuous mode? It would be neat to watch the display changing colour.

Thanks for the pictures!

[Sil_liS]

Originally Posted by rkomar

Can the microscope run in continuous mode? It would be neat to watch the display changing colour.

Thanks for the pictures!

Yes, it makes videos, but the file extension is dzc and it's not valid for attachment here. If you PM me your email I can send it to you.

[rkomar]

Originally Posted by Sil_liS

Yes, it makes videos, but the file extension is dzc and it's not valid for attachment here. If you PM me your email I can send it to you.

Hmm, I'm not sure I can play such a file on my Linux systems. Too bad.

Can you actually see the little spheres rotating to a new position as the display changes?

[Sil_liS]

Originally Posted by rkomar

Hmm, I'm not sure I can play such a file on my Linux systems. Too bad.

Can you actually see the little spheres rotating to a new position as the display changes?

I can also save the videos as wmv.
I can't see the little spheres rotating, but I can see all the steps it goes through to when I turn the page.

[pbmaniac]

Cool. Reminds me a bit of some text printed onto a piece of styrofoam. Also interesting that the particles have different sizes and shapes. I always thought they were more homogenous.

Now I would be really keen on seeing the particles of a Pearl-display, especially how they differ from the Vizplex ones.

[rkomar]

I've uploaded the wmv movie sent to me by Sil_liS by zipping it first to get around the file type restriction. Enjoy.

[paola]

thank you both!

[Booxtor]

Take a look here,
a very interesting article and pictures of EINK screen made with SEM (Scanning Electron Microscope)


Here also a short video of working Eink screen

http://www.youtube.com/watch?v=dKOcPZOWwwA

[rkomar]

Thanks, Booxtor. It's clearer to me now how the displays work. I thought the microcapsules actually rotated to bring their white or black sides to the top, rather than the particles moving inside them. But now I'm more confused about the stability of the image. Having all the negative black particles on one side of the microcapsule, and the positive white particles on the other side is energetically unstable; the like charges will repel each other and be attracted to the opposite charges. It seems to me that you would need to keep applying the external electric field at all times to keep the particles in position. Yet we know that this isn't true, that the display can keep an image while powered off. What keeps the charged particles in their place? Is the fluid really viscous (more like a gel)?

[repods]

Originally Posted by rkomar

I've uploaded the wmv movie sent to me by Sil_liS by zipping it first to get around the file type restriction. Enjoy.

what seems clear to me is that ANY e-ink screen has some "dead pixels", well litter of a pixel to be honest, that can not be set to white and stay always black
so this could be a parameter to evaluate the quality of the screen .. the less.. the better..

[Sil_liS]

Originally Posted by repods

what seems clear to me is that ANY e-ink screen has some "dead pixels", well litter of a pixel to be honest, that can not be set to white and stay always black
so this could be a parameter to evaluate the quality of the screen .. the less.. the better..

Technically it's not dead pixels it's just dead capsules. The pixels are much bigger. Also they aren't black, but gray. They make white darker and black lighter.



















I'm also attaching a video of how an A4 pdf looks on my PB360Plus (fit width).