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Homebrew Liquid Crystal Stuff

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WONG...@eos.bentley.edu

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Apr 28, 1995, 3:00:00 AM4/28/95
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Hi:
Where can I get some liquid crystal? I would like to make my own
LCD display. A big custom one. Tim Hunkin showed how on 'The Secret Life
of the Wristwatch' on TLC. It was c00l! Anyone? Thanks...

-WaiWong

Donald B. Arnold

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Apr 28, 1995, 3:00:00 AM4/28/95
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In article <1995Apr28...@eos.bentley.edu> WONG...@eos.bentley.edu writes:
>From: WONG...@eos.bentley.edu
>Subject: Homebrew Liquid Crystal Stuff
>Date: 28 Apr 95 00:45:10 EDT

Along this line ... the outside mirror on my car has a yellow liquid <it
sloshes around and the level is low enough to see the top line> between a
clear glass and the mirror. When the inside mirror sensor detects car
headlights shining on the mirror it turns dark. The outside mirror is
connected to the inside one and turns a dark blue. I assume they apply a
voltage between the mirror face and the cover glass to cause the liquid to
change state. Mine has a bad spot in one corner that looks like it has been
hit and it doesn't get dark in that area. I'd like to know more about this
liquid too.

This looks like it would be very good to make your own LCD's if you have a way
to apply tin oxide to the glass for a clear, conductive surface.

Don

Norbert Tagge

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Apr 29, 1995, 3:00:00 AM4/29/95
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Please if you have an answer, post it here, as ont only does Wong_Wai
want this information, but also I. I hope that it is not price
prohibitive
ThanksIn <1995Apr28...@eos.bentley.edu> WONG...@eos.bentley.edu
writes:

J Gourlay

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Apr 30, 1995, 3:00:00 AM4/30/95
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Just a few points to consider before rushing into this:

1. Have you a source of transparent conducting electrode glass?
2. Have you means of etching the required electrode pattern?
3. Have you a means of producing the liquid crystal alignment layer?
4. What type of liqiud crystal structure are you planning? Twisted Nematic?
5. How do you propose to keep every thing clean from particulates
6. How will you avoid moisture and impurities which will degrade the
LC material?


James "devil's advocate" Gourlay

+-----------------------------------------------------------------------+
|Dr James Gourlay, Applied Optics Group e-mail: gou...@ed.ac.uk|
|Department of Physics, phone: (031)650 5270|
|The University of Edinburgh, fax: (031)650 5220|
|Mayfield Road, Edinburgh EH9 3JZ, Scotland, U.K. |
| DISCLAIMER: The views in this communication are the views of |
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| of Edinburgh (as if they would be!). |
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--
Hi there!

Chris Matthaei

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May 2, 1995, 3:00:00 AM5/2/95
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WONG...@eos.bentley.edu writes:

>Hi:
> Where can I get some liquid crystal? I would like to make my own
>LCD display. A big custom one. Tim Hunkin showed how on 'The Secret Life
>of the Wristwatch' on TLC. It was c00l! Anyone? Thanks...
>
>-WaiWong

Yeah! I saw that show too. I especially liked the part at the end where he
melted the digital watch. I can't help you much on fiding the liquid crystal,
though. Sorry.

Chris


relax

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May 16, 1995, 3:00:00 AM5/16/95
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In article <1995Apr28...@eos.bentley.edu> WONG...@eos.bentley.edu writes:

>Hi:
> Where can I get some liquid crystal? I would like to make my own
>LCD display. A big custom one. Tim Hunkin showed how on 'The Secret Life
>of the Wristwatch' on TLC. It was c00l! Anyone? Thanks...
>
>-WaiWong
>

You can call EM Industries, Inc. at 914-592-4660. I ordered one 5gm
bottle for 87 dollars.

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