LCD screen/sheet - does it exist?

Hey,
I wonder if there are such lcd displays for sale that would be made of only one big pixel - when the current runs through it it becomes all black, when no current - it's transparent.

What I'm thinking about is trying to make a homemade 3D shutter glasses :smiley:

Found something similar: http://www.apex55.com/apex_innovations/new_products.html

If there are blinking keychains, somwhere should be such lcd parts for sale :-/

The blinking keychains are almost certainly photo transparencies being lit by LEDs embedded in the plastic.

I believe that the thing you're looking for is called an "LCD shutter". I remember getting one on the surplus market many years ago, and tinkering around with driving it using an L293 (successfully, as I recall).

You can try alltronics.com, but it was so long ago that I found it in the retail store (which Dennis has long since closed to go purely mail-order), so it's highly unlikely they're still available there. But there may be some sitting on a surplus shelf somewhere else.

Ran