red ghosting on lcd

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frdchang · #1 Post by **frdchang** » Fri Oct 15, 2004 6:56 pm

hello,

i get a red ghosting on the lcd edges on my t42 14 inch sxvga.

i have a black background for winxp, (i'll also notice the red ghosting on bootup)

here is the description of whats going on.

if i have a black background, and i open a window, (my windows are pretty bright with the standard white background and grey tool bars) and then i close the window, it leaves a red ghost imprint of the window... but only on the edges of the lcd and its only a couple hundred pixels that slowly fade away after a few seconds.

i was wondering if this is normal.

what is the response time of my lcd? (i just want to know...the red ghosting lasts a couple seconds, so i know its not some refresh rate issue)

thanks,
fred

taphil · #2 Post by **taphil** » Sat Oct 16, 2004 1:30 am

I have/had that problem too. It was most apparent when my laptop was new, occuring all along the top and bottom edges of the screen, moderately bright red. But now it only appears in two spots when I transition from a red screen to a black screen (which never happens in my real use, so I have to make a powerpoint presentation to make that happen).

It bugged me a lot at first, but I didn't want to risk getting another screen with dead/stuck pixels since mine has none. And I figure after 2.5 years if the problem is still there, I can get an in-warranty screen replacement, possibly about the time when the backlight is no longer bright as it is when new.

ronan_zj · #3 Post by **ronan_zj** » Sat Oct 16, 2004 2:07 am

oh,gosh!! I have this problem too, my LCD is 14"sxga~~~
Does all the IBM with 14'Sxga have this problem??

Plinkerton · #4 Post by **Plinkerton** » Sat Oct 16, 2004 2:18 am

My 14 SXGA didn't have it at all...

frdchang · #5 Post by **frdchang** » Sat Oct 16, 2004 2:34 am

i guess the verdict is to simply tough it out....

eh.....

well, mine has zero dead pixels.... so i guess i'll live with it...

whats the response time of the lcd?

sxvga?

J.B. · #6 Post by **J.B.** » Sat Oct 16, 2004 5:42 am

if i have a black background, and i open a window, (my windows are pretty bright with the standard white background and grey tool bars) and then i close the window, it leaves a red ghost imprint of the window... but only on the edges of the lcd and its only a couple hundred pixels that slowly fade away after a few seconds.

My T41p 14'' SXVGA does exactly the same thing. As the ghosting disppears evetunally, I didn't worry about it much. But is it normal?

sugo · #7 Post by **sugo** » Sat Oct 16, 2004 7:17 am

um ... the IDTech 14.1" SXGA here doesn't have the issue.

frdchang · #8 Post by **frdchang** » Sat Oct 16, 2004 3:20 pm

how do you know what brand of lcd i have without cracking open the laptop?

sugo · #9 Post by **sugo** » Sat Oct 16, 2004 3:57 pm

oh you can go here

http://www-307.ibm.com/pc/support/site. ... sLookup.vm

enter serial number and FPU # 11P8346 is IDTech, FPU # 11P8348 is Samsung

frdchang · #10 Post by **frdchang** » Sat Oct 16, 2004 6:10 pm

ok...so my samsung lcd exhibits the red ghosting...

and people with IDTECh doesn't...

hmmm...

taphil · #11 Post by **taphil** » Sun Oct 17, 2004 1:39 am

Mine's an IDTECH with that red ghosting problem.

frdchang · #12 Post by **frdchang** » Sun Oct 17, 2004 1:52 am

lol.... ok... i guess the sxvga has a ghosting problem... i'll just learn to live with it... its not that bad...

taphil · #13 Post by **taphil** » Sun Oct 17, 2004 2:56 pm

Yeah, for me the problem for all practical purposes went away. Before, I could see it in a low lighted room. Now, I can hardly see it at all in a pitch black room.

red ghosting on lcd

red ghosting on lcd

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