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Groups > comp.sys.laptops > #1669

Re: Laptop Screen Problem

From mike <ham789@netzero.net>
Newsgroups comp.sys.laptops
Subject Re: Laptop Screen Problem
Date 2012-11-16 20:20 -0800
Organization A noiseless patient Spider
Message-ID <k8739t$db9$1@dont-email.me> (permalink)
References <k7vn9l$dia$1@speranza.aioe.org> <5932ee0e-a606-4bd7-b61c-be3b2d4e251a@googlegroups.com> <k8618f$ahv$1@reader1.panix.com> <k86cjf$m50$1@dont-email.me> <k86oe0$ll6$1@reader1.panix.com>

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On 11/16/2012 5:14 PM, the wharf rat wrote:
> In article<k86cjf$m50$1@dont-email.me>, mike<ham789@netzero.net>  wrote:
>>>
>>> 	Think about it.  They use magnetic fields to align the crystals to
>>> pass light.  You just need a strong enough magnet.
>>
>> I'd like to see the citation on that assertion.
>>>
>>
>
> 	Well, how do *you* think they align the things?  They're polarized,
> you put current near one end and they all line up (ok, "untwist", whatever,
> they're still driven by magnetic force, or else LCD's would require quantum
> mechanics).

Think you need to do some research on how LCD's work.  They're electric 
field devices.  Yes, there is a relationship between electricity and
magnetism, but that ain't what's in play here.

Given your description your position, I suggest you
refrain from implying that you understand quantum mechanics.
>
> 	Heck, even if the crystals somehow aren't sensitive to magnetism
> there's a whole array of little teeny transistors behind them that certainly
> are.  Try taking the back off the display and laying your magnet right on the
> actual LCD unit.  That might show something.  In fact, if I can find a nice big
> magnet I'll try it on a broken one this weekend.  Probably electrocute myself.
>
> 	And what about the backlight?  Bet that doesn't like big magnets...
Yep, given enough magnetism, you can probably make the universe
implode.  That ain't in play here either.

Let me add that the CRT display IS significantly affected by magnetic 
fields.

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Thread

Laptop Screen Problem Enrie Membership <me2@privacy.net> - 2012-11-14 09:12 +0000
  Re: Laptop Screen Problem wrat@panix.com (the wharf rat) - 2012-11-14 22:29 +0000
    Re: Laptop Screen Problem Bob_Villa <pheeh.zero@gmail.com> - 2012-11-16 04:15 -0800
      Re: Laptop Screen Problem wrat@panix.com (the wharf rat) - 2012-11-16 18:39 +0000
        Re: Laptop Screen Problem mike <ham789@netzero.net> - 2012-11-16 13:52 -0800
          Re: Laptop Screen Problem wrat@panix.com (the wharf rat) - 2012-11-17 01:14 +0000
            Re: Laptop Screen Problem mike <ham789@netzero.net> - 2012-11-16 20:20 -0800
              Re: Laptop Screen Problem Bob_Villa <pheeh.zero@gmail.com> - 2012-11-17 07:08 -0800
              Re: Laptop Screen Problem wrat@panix.com (the wharf rat) - 2012-11-17 17:44 +0000
                Re: Laptop Screen Problem mike <ham789@netzero.net> - 2012-11-17 18:04 -0800
                Re: Laptop Screen Problem Michael Black <et472@ncf.ca> - 2012-11-17 22:30 -0500
                Cute magnet story (was: lcd blah blah blah) wrat@panix.com (the wharf rat) - 2012-11-18 18:46 +0000
                Re: Cute magnet story mike <ham789@netzero.net> - 2012-11-18 13:14 -0800
                Re: Cute magnet story wrat@panix.com (the wharf rat) - 2012-11-19 06:30 +0000
                Re: Cute magnet story ak621@chebucto.ns.ca (Richard Bonner) - 2012-11-24 22:44 +0000
                Re: Cute magnet story ak621@chebucto.ns.ca (Richard Bonner) - 2012-11-24 22:38 +0000
                Re: Laptop Screen Problem wrat@panix.com (the wharf rat) - 2012-11-18 18:24 +0000
        Re: Laptop Screen Problem Bob_Villa <pheeh.zero@gmail.com> - 2012-11-18 16:10 -0800
          Re: Laptop Screen Problem wrat@panix.com (the wharf rat) - 2012-11-19 06:39 +0000

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