LuLines (the homebrew game) fixes dead pixels!

[edepot]

Apparently, LuLines the homebrew program works your LCD to
the max, and dead pixels become unstuck after running it for
some time. Plug in your power supply. Put the screen at maximum
brightness). Turn off power savings and run the program. Leave
the right shoulder trigger on for about 15 seconds (which creates
massive amounts of lines), then leave it running for a couple of
hours. Make sure the screen is always on and it doesn't go into
sleep mode. Confirmed to work by at least two people including
myself.

Unfortunately the program runs on firmware 1.0 (until 1.5 is cracked).

Program at http://www.edepot.com/game.html
and a post describes it in the software forum.

[pixel]

I really have to refrain hard to not move that to the hall of shame...

Do you realize that dead pixels is a pure hardware random problem ? And there are several reasons for having a "dead pixel" on your screen. I once had one onto my brand new LCD screen. I just tapped the screen with the finger, and it worked back. Random, random, random... No miracle software will fix dead pixels for you.

[byg]

er, how exactly?

[Danj]

I think what he meant is that it could potentially fix stuck pixels, not dead ones. Dead ones are dead for life, as I understand it, whereas stuck pixels can become unstuck and presumably if you exercise the screen a lot by changing colours rapidly I could see how that might work. No idea if it's a good idea to do it though, maybe it has some other side effects?

[Thanhda]

dead pixels are usually a spread of white dots. usually cant be fix. but i myself have 1 stuck red pixel. cant get rid of it. these programs say they fix it, but has yet to work for me. i dont even see how a bunch of flashing colors can fix your problem anyhow.

[edepot]

Don't know how pixels actually work, but this is my hypothesis:

The liquid crystals that are sandwiched between the glass are polar.
When electric current is turned on for a particular cell the
liquid crystals realign themselves. The more they align in a certain
direction, the more light is passed through from the backlight (because
the front is coated with polarized film). There are red, green, or
blue cells. when three of them light up in different intensity, they make a color. Now these are liquid crystals, and are not organic (unlike OLED),
so they last longer and don't break down as much (compared
to OLEDs and plasma). That is why they last longer. The problem is
that during the manufacturing of the LCD, sometimes the
liquid crystals get sandwiched too tightly and some of the crystals
are stuck on the glass and can't move. Sometimes applying pressure
may be the right thing, but sometimes its worse, because you are
basically squeezing the liquid crystals even more, making it even
harder to unstick them from the glass. If lets say the crystals are
grouped together, and one end of it is lightly stuck on the glass.
If you can vibrate the crystals back and forth, eventually all
the different directions are tried and one of them is the "unstick"
direction. Depending on the amount of electricity, the crystals
move in different direction. It may be random or it may be a special
type of color cycle. So a program that rapidly or slowly cycles through the different electrical currents on each cell or randomly (I actually don't know) does the trick somehow. So LuLines does seem to cycle the colors at a rate that fixed the dead pixel. Maybe someone else has a better
explanation, but at last it fixed it.

[pixel]

As I said, there are way too much different reasons for dead pixels, but it mainly comes from the same very cause: capilar wires. To control the pixels of the screen, you have a matrix of capilar electric wires behind. Three for each pixel. Count, it's quite a number. It's so tiny that sometime, the capilar wires may:

-) break
-) ground
-) short cut with another wire
-) short cut with vcc
-) do other various funny things