VisorCentral.com - Are bad pixels common on the Prism?

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- Visor Prism (http://discussion.visorcentral.com/vcforum/forumdisplay.php?forumid=19)
-- Are bad pixels common on the Prism? (http://discussion.visorcentral.com/vcforum/showthread.php?threadid=12389)

Posted by kalahari on 02-28-2001 10:00 PM:

I have received my second replacement Prism. I sent the first replacement back immediately because a bad pixel was bugging me. I have received a second replacement, with a different serial number, that also has a bad pixel in the upper right quadrant.

Are other Prism owners finding that they have a bad pixel or two and living with them?

Posted by dick-richardson on 02-28-2001 10:06 PM:

No bad pixels here. If they're accepting replacements for a bad pixel it obviously isn't something you should "have to put up with." I'd call again and see if I couldn't talk to someone a little higher on the chain of command, were I you.

__________________
-Joshua
Abortion: Darwinism at its finest.

Posted by mikedemo on 02-28-2001 10:16 PM:

Prisms are dependable

No screen issues here. Prism runs great

If you just bought it. Exchange it for a new one.

Enjoy

Time for the rush for train home from work
*Walks away listening to SoundsGood AudioPlayer in Prism*

__________________
-Mikedemo
It's all about how you spend the money.

Posted by akur on 02-28-2001 10:34 PM:

My prism has no bad pixel!
It's Working Great!

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Have A Good Day!
I Love My Prism!

Posted by Zen on 02-28-2001 10:38 PM:

Arrgh

Its been a while since I've posted. I had been living happily with my VDX...Was one of the first to buy one...and I remember those horrible days of customer support.

Got my Prism yesterday. Woo-hoo. One bad pixel. I am calling them now...sigh.

Steve

Posted by Tan Kit Hoong on 03-01-2001 06:47 AM:

Bad pixels exist in every colour LCD display out there - even on laptop computers.

Usually, companies like Toshiba and Compaq will have a minimum number of bad pixels before they will give you a replacement - usually in the range of 20 or so pixels, I think.

Therefore, having just one bad pixel on the Prism screen is okay, I think. I would be bothered if there were two or three.

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Tan Kit Hoong,
Star Publications (M) Ltd
<img src="http://thestar.com.my/tech/images/thestar_140x45.gif">

Posted by virg on 03-01-2001 07:07 AM:

kalahari I have received my second replacement Prism. I sent the first replacement back immediately because a bad pixel was bugging me. I have received a second replacement, with a different serial number, that also has a bad pixel in the upper right quadrant.

My Prism is working great-no bad pixels. FYI-(if you haven't seen this at VC already) Handspring has a tendency to give refurbished replacements. Which maybe the cause of your problem with the second replacement.

good luck
Virgil

Posted by MPM on 03-01-2001 09:28 PM:

Prism should not have bad pixels

quote:
Originally posted by Tan Kit Hoong
Bad pixels exist in every colour LCD display out there - even on laptop computers.

Usually, companies like Toshiba and Compaq will have a minimum number of bad pixels before they will give you a replacement - usually in the range of 20 or so pixels, I think.

Therefore, having just one bad pixel on the Prism screen is okay, I think. I would be bothered if there were two or three.

Not "every colour LCD" has bad pixels. Bad pixels are much more common on the larger displays, such as on laptops. This is simply because the screens are so much bigger.

The small 160x160 screen of the Visor Prism is so small that none of them should have bad pixels. The yield on the small screens should be so high that throwing out the ones with bad pixels should not affect the price of the good ones that much.

Think of it this way: The Visor Prism has 160x160x3 = 76,800 total pixels. A 800x600 laptop panel has 800x600*3 = 1,440,000 total pixels. So the laptop panel has just under 19 times the number of pixels as the Visor Prism. So if 5 to 10 bad pixels on some laptop screens are "normal" then the Visor Prism should have only .25 to 5 bad pixels on some panels. i.e. no panels should have bad pixels.

Ok, the real world is not so perfect, but like I said the yield penalty on the Visor Prism size panel should be very low.

Posted by Matthew Nichols on 03-01-2001 10:13 PM:

Throughout my various exchanges of Prisms (4 total) I've never had one with a bad pixel.

None of my laptops have ever had them either.

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Matt Nichols
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