Dead pixels
Hi,
is there some kind of test program to test how much dead pixels a tft screen has.
I wanted to know so i made a black background, quit all programs so I could see only the black screen, turn off the lights, wait 30 minutes to adapt your eyes, and then start to search for dead pixels.
Well I count over 10 dead pixels, the red ones are the worst, but there are other colors that cannot be seen easily.
Ok U can't seen them on normal operation, but if more pixels die over time, we'll notice it.
I'm on a 1Ghz Ti Last generation.
Can U guys&girls do the same test with your tft screens and post your findings?
Greetings
is there some kind of test program to test how much dead pixels a tft screen has.
I wanted to know so i made a black background, quit all programs so I could see only the black screen, turn off the lights, wait 30 minutes to adapt your eyes, and then start to search for dead pixels.
Well I count over 10 dead pixels, the red ones are the worst, but there are other colors that cannot be seen easily.
Ok U can't seen them on normal operation, but if more pixels die over time, we'll notice it.
I'm on a 1Ghz Ti Last generation.
Can U guys&girls do the same test with your tft screens and post your findings?
Greetings
Comments
The files are 100% white, 100% black, 100% red, 100% green and 100% blue. Make sure they're all in the RGB colour space.
You can then go full screen in Photoshop (F key twice and TAB key to remove palettes) or simply set the screensaver to rotate the images...
If you get any black pixels appearing on the white, red, green or blue screens, then they're "dead" pixels. If you get pixels that stay the same colour (really bright red, green or blue) throughout all of the test screens, then you have "stuck" pixels...
I think...
It's normal for very faint coloured pixels to appear on a completely black screen. This is simply because it's very hard for the TFTs to completely block out the backlight. If you're having to wait on your eyes to become accustomed to the screen then I suggest that this is what you are seeing. You'll know a stuck pixel when you see it. It's hard to miss it, and they're extremely annoying. Dead pixels however often appear like specks of dust on the screen, and indeed you're screen will become so dusty after a couple of days use that you won't be able to tell one from the other!
The good news it that some people have reported that stuck pixels sometimes come back to life.
Anyhow, if you think about it, this screen has nearly 4million sub-pixels, so 1 in that isn't too bad at all. As for the screen as a whole, it is excellent - the 181T, DVI, VGA and room to spread out is a great change from a succession of 12" laptop screens.
David
Maybe it was in the file I created.
Lucky me...
Greetings