I have come across a few 24” LCD desktop monitors that are selling for around $500. Now, admittedly some of these don’t have very wide angles of optimal viewing, but I figured a piece of paper or another suitable diffuser would fix that.
Anyway: I was wondering if LCD screens have an area of ‘dead’ glass around the edge of the screen, or if the image goes right up to the edge. Because if the image did go right to the edge, it might be possible to place two screen (minus their cases) beside each other and make them appear as one.
There might be a crack, true. Does anyone know how much of a crack? Would sanding the side of the edges (to make a better fit) ruin the screen?
If this is possible, I could end up with a massive 2400 x 3840 pixel screen, for $1000 US!

There are edge connectors sticking out the sides, sanding them would be a bad idea.

Do these edge connectors go all the way around?

hmm.. seems to be 2 edges, one for horizontal, one for vertical i’m guessing. If you could flip the image on one and the gap of non active LCD area wasn’t very big, maybe you could do it. I would never recommend anyone sand the edges though.

Actually, i’m seeing a bit of variation, the only way you could tell would be to seach for some pics of a stripped down LCD of the panels you would intend to buy.

The thing is, just about every LCD I have taken apart has several mm of “dead space” around the edges where there is no image.  However this does not mean that they do not serve a purpose; looking closely at the edges it appears that they have hairline traces running right up to the edges.  Not to mention the very fragile ribbon connectors running around two of the sides. 

So in short I would say never sand the edges of an LCD.

Though if you were VERY careful you could line them up with great precision and only have ~1cm gap.  Another option is to use prisms to work with the images and then line them up in such a way so that the border is gone.

I have an lcd with only connectors in the top, not on the left, right or bottom. So that one could do the job for you. Check http://sandstorm-mm.blogspot.com for more info

Hi,

The one I took apart (from a Toshiba Tecra 8200) has a small, say about 3 mm edge to it around the entire sheet.  I get the impression (and as others have said) that sanding it down or trying to remove it would be an exceptionally bad idea - I suspect you’ll weaken the structure or it may actually break apart and then your gonna cover yourself in interesting chemicals (like mercury).

This company proves that it is very possible, and has very nice results if done properly. It would be interesting to put multi-touch on this.

http://www.seamlessdisplay.com/products_radius320.htm

Mammoth - 06 November 2007 07:34 PM

This company proves that it is very possible, and has very nice results if done properly. It would be interesting to put multi-touch on this.

http://www.seamlessdisplay.com/products_radius320.htm

Yeah, if you keep in mind that (like my display has) 3mm of death space, they can fix that with the angle. It would look like:

/------\

With the 3mm of the one display behind the other display. Then they have only a death region of 3 mm and that’s almost not visible when watching such a big screen. 3mm is ok. And what you could do is place the one lcd above the other and so the 2 death regions of your lcd above each other.