Re: LCD Etching

[Matt Ion <soundy@xxxxxxxxxxxxxxx>]

Bob La Londe wrote:

> I did a video job a couple years ago where the customer insisted on buying
> their own LCD flat screen monitors.  I don't recall what brand they used,
> but they stared to suffer from etching almost immediately.  When I was
> looking into that I was told almost all LCD monitors will etch fairly
> quickly when used in that type of application.  Usually within days and with
> some within hours the bright text will start to etch.
>
> I have a little ten inch Sharp LCD I have had for many years that I use for
> a test monitor and occasionally for part of a loaner system when I have to
> send a monitor off for repairs.  It has always had a great picture and has
> never shown any signs of etching even when operated on a fixed quad system
> for over six months.
>
> I have a customer who wants me to loop out and install a flat screen for one
> of their cameras.  Naturally I thought of Sharp.
>
> As I flip through my TV catalog I notice that Sharp seems to have two lines.
> One is just Sharp and the other is Sharp Aquos.  Anybody have any recent
> experience with either of these for fixed view CCTV applications regarding
> etching or lack thereof?

I've installed numerous DVRs with LCD monitors and never once seen
"etching" occur.  In the office we have one on a test bench that's been
in use for over two years (a 15" Sharp), often with the same DVR
displaying on it for three or four months straight, and never a problem.

Frankly, I've never heard of this phenomenon... a quick Google search of
"lcd etching", and the first three pages, the only references to
"etching" refer to manufacturing methods, not display failure.


---
avast! Antivirus: Outbound message clean.
Virus Database (VPS): 0542-3, 10/19/2005
Tested on: 10/19/2005 7:52:39 AM
avast! - copyright (c) 1988-2005 ALWIL Software.
http://www.avast.com