In alt.comp.hardware.pc-homebuilt leegold <goldtech@worldpost.com>
wrote:
>I see a lot of new LCD monitor buyers bragging they have no dead
>pixels.
>
Mine doesn't.
>What does this mean?
>
It's hard to make an LCD panel without either an always-on pixel or one
that's dead. That means that somewhere o their screen, if you look
closely, one pixel never goes out, or one pixel never comes on. It's a
property of fully digital monitors; the more dense the monitor and
higher resolution it handles, the more likely it is to happen; yet the
less visible it will be to the user.
I think most manufacturers specify so many live and so many dead before
a screen is declared bad.
>How can I tell or test for this?
>
Testing for always-on pixels is easy: Turn your screen to black; and a
live pixel will look like a small star.
Testing for dead pixels is a bit harder. Pick a program like word to
fill the screen with nothing but white, and look for tiny black dots.
In message <dagc53tbo01b8pv24s8ktffstieduj9i2h@4ax.com> Frank McCoy
<mccoyf@millcomm.com> wrote:
>Testing for dead pixels is a bit harder. Pick a program like word to
>fill the screen with nothing but white, and look for tiny black dots.
That won't do it either, in some cases only one colour won't work, so
you need to test each colour.
In even rarer cases, one or more colour will fail, but only under
certain cases (realistically at least one monitor in every Best Buy
store will have this problem)
--
If quitters never win, and winners never quit,
what fool came up with, "Quit while you're ahead"?
>In message <dagc53tbo01b8pv24s8ktffstieduj9i2h@4ax.com> Frank McCoy
><mccoyf@millcomm.com> wrote:
>
>>Testing for dead pixels is a bit harder. Pick a program like word to
>>fill the screen with nothing but white, and look for tiny black dots.
>
>That won't do it either, in some cases only one colour won't work, so
>you need to test each colour.
>
>In even rarer cases, one or more colour will fail, but only under
>certain cases (realistically at least one monitor in every Best Buy
>store will have this problem)