How to check for backlight problems?

[jnick]

Hey guys.

My 2 Dell 2005FPW came today. I was wondering, how exactly do you check for backlight leakage? I tried to do it, but depending on my angle, no matter what, I whould get a "lighted reflection" in the corners of the screen. What's the proper way to test for backlight leakage.

Though, one of my monitors has 1 dead BLUE pixel in the middle of the screen . Is there anyway to "massage it out" as I've read? Or am I best returning it? I know it's just one, but it's really noticable to me on darker screens.

Thanks guys.

Jnick

 

[CompuDrew]

The easiest way I've found to test for backlight leakage is to set your desktop to black (choose "none" for background image and then select black as the color). Now turn off all the lights and take a look at it from your chair as you normally sit. Is the black consistant or do you see any light areas?

On the "massaging" part I've heard it will often work. Find a very soft cloth and massaage the screen through that.

 

[Elec]

You could also go into the screen saver selection and pick blank and hit preview. That'll just black out your screen until you hit a key or move the mouse. Then like CompuDrew said, make the room as dark as you can and back up a few feet. Take a look at how consistent the blackness/brightness is over the entire screen. Look for any color deviations in the black. Pay special attention to the edges and corners where backlighting issues seem to have been the worst. A good screen will appear dark and of uniform color with only small deviations in brightness across the entire screen. A bad one will have large, unusually bright blotches that may even appear to be a lighter color than the black they should be.

 

[TheArchitect]

If it is not immediately apparent, then you don’t have the infamous leakage. There were quite a few pictures in lighted rooms where the leakage was very prominent.

 

[jnick]

Thanks for the replys guys.

I figured that's the way to do it. Just wanted to make sure there was no special "tool" or program needed. Unfortuneatley, both of the monitors have a quite a bit of leakage out of all 4 corners . . theres no need to even turn my lights of . . .

Thank's again for the help.

Jnick

 

[SocceRich20]

What's the big deal? Is there a problem with a little bit of brightness at the edges? It doesn't bother me one bit, I don't game in the dark.

 

[bytor33]

There's a game called doom 3, it's dark.

 

[Elec]

There's also a thing called I play games or watch movies with the lights off.

 

[Ocean]

black pic, correct rez

http://webpages.charter.net/ocean/Backlight Test 2005FPW.jpg

 

[SocceRich20]

There's also a thing called I play games or watch movies with the lights off.

Hmmm. When I want to watch a movie, I won't settle for this puny 17" LCD. I watch it on the big screen in the HT.

 

[Elec]

That's cool if you've got one, not everybody does. Not everybody has the room or money for one either.

But w00t for the Lehigh valley, I've got family in that area

 

[bytor33]

Ok, now what exactly does gaming or watching movies with the lights off have to do with backlight bleeding? I'm saying that doom 3 is one of the few games where even somewhat minor backlight bleeding can be bothersome simply because the majority of the game is extremely dark, especially the edges of your screen where your flashlight isn't shining.

 

[Elec]

It's another example of where backlight issues can be noticeable or annoying. If you're playing a dark game like Doom3, you'll notice backlight problems just because things near the edges that are supposed to be dark or black won't be. If you're watching movies or playing games with the lights off, you'll notice backlight problems because the screen will be the brightest thing in the room and it'll be easier to see if the brightness isn't even. If sunlight is streaming in through a window, it'll wash everything out a bit and you may not be able to tell if there are backlight issues. That's all.