dead.pixel poll

Message

Roisin · #1 Post by **Roisin** » Tue May 23, 2006 7:41 pm

just wondering what the odds are, of me getting 1 or more dead pixels with a new t60

also, i bought a new 20" lcd monitor recently, with an lg.philips IPS panel. So i kind of studied the panel technologies, and learned that with TN, a dead pixel/subpixel is permanently lit, while with MVA/S-PVA the dead pixels are permanently off. I dont think i've ever read anywhere what the case with LG.Philips IPS panels is

aarong · #2 Post by **aarong** » Tue May 23, 2006 7:55 pm

18 stuck sub-pixels here on a 15" IPS.

astro · #3 Post by **astro** » Tue May 23, 2006 8:12 pm

Haven't noticed any dead/stuck yet on my 14.1" SXGA+ (Samsung). Though the more I say this, the more worried I get...

<OFF-TOPIC>
WTF?

All about Roisin
"20,000th Post "
Joined: 20 Jan 2005
Total posts: 77
[0.05% of total / 0.16 posts per day]

Where did you get that bird??

Roisin · #4 Post by **Roisin** » Tue May 23, 2006 8:23 pm

i got a t43 with a 14.1" SXGA, it has no dead pixels, but i regret i did not go with a 15" IPS. I'm actually selling it just because of that, now that i upgraded my LCD monitor from an old TN panel to an lg.philips IPS panel. that 14" must be the worst lcd screen i have ever seen

that bird found me

sergeycentral · #5 Post by **sergeycentral** » Tue May 23, 2006 8:49 pm

looks like the chances are 40% so far.. ouch

GoofyG28 · #6 Post by **GoofyG28** » Tue May 23, 2006 9:25 pm

One greenish dead pixel. I'm sure it's dead... one of those permanently-lit dead pixels. I've tried flashing it to live. No cigar.

astro · #7 Post by **astro** » Tue May 23, 2006 9:29 pm

sergeycentral wrote:looks like the chances are 40% so far.. ouch

I am still undecided as to whether this forum represents the best sample population for these kinds of things. Nevertheless, it is the only sample population the general public has...

#8 Post by **RonS** » Tue May 23, 2006 11:34 pm

Four T60's so far and not one dead pixel

wpwood3 · #9 Post by **wpwood3** » Tue May 23, 2006 11:57 pm

No problems here.

kimx · #10 Post by **kimx** » Wed May 24, 2006 3:11 am

No dead or stuck pixels here.

T60 hydis 14,1 sxga panel

pekka · #11 Post by **pekka** » Wed May 24, 2006 3:50 am

One blue stuck pixel on my 14" SXGA+ Hydis panel.

john 86 · #12 Post by **john 86** » Wed May 24, 2006 4:27 am

0 on T60p 15 inch uxga
Cheers John

astro · #13 Post by **astro** » Wed May 24, 2006 5:25 am

RonS wrote:Four T60's so far and not one dead pixel

Hey! That means RonS should get to vote 4 times!

rnsolo · #14 Post by **rnsolo** » Wed May 24, 2006 9:38 am

got 1 stuck pixel on the first day on my T60P. then it was gone the next day. none has reappered yet, so far...

___________________
T60P 200783H (HK model - same whinning noise when on batteries)

piquadrat · #15 Post by **piquadrat** » Wed May 24, 2006 4:07 pm

Got mine today (T60, SXGA, 14"). First thing I checked was the screen. No dead or stuck pixels whatsoever. I was a happy camper.

But 5 minutes ago, it was there, sitting in the middle of the screen, seemingly laughing at me with its white little face (metaphorically speaking). After a reboot, it appeared to be gone, until I loaded a website with white background. There it was again, now black. Funny little bugger. That moment, I remembered a thread I read on this forum about some program that occupies exactly 1 pixel on the screen and can be mistaken as a dead pixel (I can't find that thread again). I moved the mouse pointer on the "dead pixel", resulting in a little scrollbar appearing.

I'm happy I have no dead pixels (yet), but how do I kill this thing so that it doesn't appear again and scare me to death? And what does it anyway, besides making people think their display is broken?

[edit]I think it has something to do with Ultranav, in particular with the scrolling function of the 3rd mouse button. I deactivated that function and the black dot is gone[/edit]

Roisin · #16 Post by **Roisin** » Wed May 24, 2006 4:15 pm

i should have run a different poll, it seems like 14" TN panels are usually perfect, it's the 15" IPS panels that seem to come with dead/stuck pixels. Although i'm still not sure what a stuck pixel is, i'll have to re.read the forum threads describing this 'phenomenon'

smap77 · #17 Post by **smap77** » Wed May 24, 2006 4:52 pm

I had one stuck Red about 1" up and to the left of the center of the screen straight out of the box. EasyServ even sent it back unfixed after Tech Support said they'd fix it.

2623-D8U 14" T60p

christopher_wolf · #18 Post by **christopher_wolf** » Wed May 24, 2006 5:53 pm

They aren't fixing any stuck pixels under warranty unless it meets the ISO 13406-2 Standard and IBM's own standards derived from that.

See;

http://www-307.ibm.com/pc/support/site. ... IGR-4U9P53

And

http://thinkwiki.org/wiki/Problem_with_Pixel_Error

HTH

CupOfJoe · #19 Post by **CupOfJoe** » Thu May 25, 2006 2:35 am

14.1" Hydis display.

Zero bad/stuck pixels. Yet.

I'm wary about some showing up, after reading some other posts. But I'll keep a keen eye out for 'em, as I'm within the 30-day return period should one (or more) rear its ugly presence.

-CupOfJoe

iamthehunter · #20 Post by **iamthehunter** » Thu Jul 13, 2006 6:19 pm

no stuck pixels....screen is beautiful

BOE-Hydis, 15" UXGA

own6volvos · #21 Post by **own6volvos** » Thu Jul 13, 2006 8:49 pm

BOE-Hydis UXGA

One stuck red pixel a bit up and to the left of the middle of the screen.

NS · #22 Post by NS » Thu Jul 13, 2006 9:14 pm

Haven't notice a single one yet.

LCD always clean and free from stuck or dead pixels while it is still under my tender loving care.

#23 Post by **K. Eng** » Thu Jul 13, 2006 10:52 pm

I suppose it is possible that bad pixels can show up later, but in my experience, I have never seen a panel develop bad pixels later. My old Dell Latitude CPi had a single dead one, and my ThinkPad had a stuck red and stuck (partially) blue one, but they never developed further abnormalities.

More common is pressure damage to the display. This is especially noticeable on some older Dell models. Some early Dell 600m models developed this in the shape of the round Dell logo on the top of the LCD case. The Dell 300m developed bright white patches in the shape of a smiley face

I've never seen a ThinkPad T series develop pressure damage.

CupOfJoe wrote:14.1" Hydis display.

Zero bad/stuck pixels. Yet.

I'm wary about some showing up, after reading some other posts. But I'll keep a keen eye out for 'em, as I'm within the 30-day return period should one (or more) rear its ugly presence.

-CupOfJoe

christopher_wolf · #24 Post by **christopher_wolf** » Thu Jul 13, 2006 11:09 pm

Stuck pixels can be generated and appear on any LCD TFT. Although, that said, they can also be made to go away.

I have never, however, seen a truly dead pixel pop up on an otherwise fine LCD TFT that was undamaged and showed no signs of pixel problems before.

NS · #25 Post by NS » Thu Jul 13, 2006 11:42 pm

christopher_wolf wrote:Stuck pixels can be generated and appear on any LCD TFT. Although, that said, they can also be made to go away.

Sorry for being a complete idiot here.

@ Christopher: How to make the stuck pixels go away? How does a stuck pixel formed? Sorry, i had never seen 1 in my life before. How does it look like?

Thanks for explaining to me. I had never seen a stuck pixel before that's why i asked.

christopher_wolf · #26 Post by **christopher_wolf** » Thu Jul 13, 2006 11:53 pm

NS wrote:
christopher_wolf wrote:Stuck pixels can be generated and appear on any LCD TFT. Although, that said, they can also be made to go away.
Sorry for being a complete idiot here.

@ Christopher: How to make the stuck pixels go away? How does a stuck pixel formed? Sorry, i had never seen 1 in my life before. How does it look like?

Thanks for explaining to me. I had never seen a stuck pixel before that's why i asked.

Stuck pixles can be generated if you stress a particular pixel's hardware enough. Say, running a series of flashing colors, RGB then B/W, fast enough. Stuck pixels manifest themselves due to tiny differences in the TFTs for each pixel; slightly different response and lead times, etc. You can make stuck pixels go away in much the same manner, simply run something for an extended period of time that keeps making that pixel change near the limit of its response time; i.e. that same color loop sequence that could have generated the stuck pixel in the first place.

NS · #27 Post by NS » Fri Jul 14, 2006 12:43 am

@ Christopher,

then what about playing intensive games in the TP? Mine is warcraft 2 and many high graphics intensive games. Does this mean that nothing will happen now because my TP is new but later on as the years go by, my TP will start to get more stuck and dead pixels?

Thanks.

ramian · #28 Post by **ramian** » Fri Jul 14, 2006 6:17 am

LF-Philips 15" SXGA+ screen with no dead/stuck pixels = Happy Thinkpad user = me

moore101 · #29 Post by **moore101** » Fri Jul 14, 2006 5:45 pm

Ordered a first batch of 25 T60's and 6 of them have at least one stuck pixel, very dissapointing.

jjesusfreak01 · #30 Post by **jjesusfreak01** » Fri Jul 14, 2006 6:32 pm

To get rid of stuck pixels, there are two things to try.

First, hit the middle trackpoint scroll button, it controls a white pixel which randomly jumps around the screen. That may solve your problem.

Second, find an online video site and search for stuck pixel repair (or something like that). You may be able to find a video you can loop to try to fix the pixels.

dead.pixel poll

how many dead pixels on your t60?

dead.pixel poll

Faked dead pixel

One stuck red 14" t60p

Who is online