Topic: Crappage, LCD problems (Read 1452 times)

Clark Kent · « **on:** April 25, 2005, 07:24:26 pm »

Been noticing a problem with my LCD screen lately. I've noticed that the screen has a darkened blob originating from the bottom center of the screen. The Screen still works, and i can still see/ready waht is there, but it is darkened compared to the rest of the screen. After a while, the blob diminishes, and usually all but disapears once the LCD has been running for a while. Is anyone here familiar with this phenomenon? What causes it? Is there a way to fix it without sending it in to be replaced?

SkyFlyer · « **Reply #1 on:** April 25, 2005, 10:20:23 pm »

Just going to take a wild shot in the dark here, since I dont know much about LCDs, but LCD stands for liquid Crystal Display, doesn't it?

Maybe the Liquid is draining itself at that spot?

I would turn it upside down (if the directions say not to, then dont... lol), over night, and see if that does anything. Maybe the blob will be in the upper center part of the screen lol.

E_Look · « **Reply #2 on:** April 25, 2005, 11:29:56 pm »

Unlikely there's a leak. Each "pixel" should be a sealed unit. But they ARE electrical/electronic devices. Electrical and electronic connections DO degrade, in some environments or devices faster than in others. (Translation: CK might have gotten the one bad unit the factory turned out at 4 PM on a Friday.)

I would see if the manufacturer might replace it. I don't think there's a way to fix it. I think we can make it worse, however...

Clark Kent · « **Reply #3 on:** April 26, 2005, 09:08:44 am »

Thanks e_look, this is pretty much what I expected. I'll have to take it in at the end of the week when I'm done with finals to have it replaced.

Death_Merchant · « **Reply #4 on:** April 26, 2005, 04:38:19 pm »

I'm not sure from your description, but here are a few possibilities:

1) Bad backlight: LCDs do not generate enough light on their own. All LCD displays are backlighted by a rather special fluorescent bulb (or series of bulbs). Bad news -> not cheap to replace

2) Voltage regulator: a regulator card controls the power running to the bulbs. These can go bad. Result looks like a bulb failure, or may simply be dimmed.

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