Re: Can LCDs suffer from screen burn in?

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From: Shawn T. Rutledge (rutledge_at_cx47646-a.phnx1.az.home.com)
Date: Fri Apr 14 2000 - 20:36:34 EDT

On Fri, Apr 14, 2000 at 08:26:18PM -0500, Jeffrey D Grinnell wrote:
> I've got a Thinkpad 770 running OS/2 Warp 4 and I've noticed recently
> what looks to be minor burn in of the LCD. I thought these displays
> were immune from burn in, but I'm clearly seeing the ghostly images of

Nope, not quite immune. It's less of a problem than with CRT's though.

I imagine it's caused by a physical change occurring in the liquid crystal
material. If kept "twisted" for a long period of time it develops a
hysteresis or something like that. 

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