Jeroen1000
Limp Gawd
- Joined
- Sep 17, 2010
- Messages
- 266
Everytime I try to do this for someone I get lost at explaining what is happening.
I'm using another thread as a guidance as I've lost my own info: http://hardforum.com/showthread.php?t=1700892
The problem:
As far as I can tell this statement should be correct:
(trying to) Explaining it all:
I'm assuming that the for the troublesome pixel in question, the RED subpixel is broken => it remains always on => it keeps transmitting RED even when is it supposed to be OFF
In order to display white all three subpixels must be ON (=transmitting light?). In additive color mixing this produces white. All pixels are capable of turning on in above scenario so displaying white still works fine.
In order to produce black all three subpixels must be OFF (blocking light?). However, the RED one remains in the ON state here. So when displaying black, the defective RED pixel stays lit.
And then I run into issues:
When displaying RED one would assume the defective pixel turns RED like all the others. But the poster states it turns into a pale grey.
When displaying GREEN one would assume the pixel would turn YELLOW. As GREEN + RED = YELLOW.
Yet the poster says GREEN displays just fine. This is not possible when the RED pixel is always ON.
When displaying BLUE one would assume the pixel would turn MAGENTA. As BLUE+ RED = MAGENTA.
Yet the poster says BLUE turns out to be a pale WHITE.
All kidding aside, I did have fun with the coloured text, but does anyone know why he is seeing these things? There must be some logic that works.
Cheers,
Jeroen
I'm using another thread as a guidance as I've lost my own info: http://hardforum.com/showthread.php?t=1700892
The problem:
Crake8 said:On solid color checks, one pixel: On solid black background, it is red; on red, it is a pale grey, on blue, it is a pale white; on white, I do not see it - it is white; on green, I do not see it - it is green.
As far as I can tell this statement should be correct:
BearOso said:PSA: On a transmissive-by-default panel like IPS or PVA, a bright pixel is a dead pixel. "Common knowledge" about stuck and dead pixels should be inverted when not discussing TN.
If your pixel is bright at any time when it's supposed to be dark, Dell should replace it. If you get a bad support rep who refuses you then ask for his/her supervisor, as their guarantee should definitely apply to what you describe.
(trying to) Explaining it all:
I'm assuming that the for the troublesome pixel in question, the RED subpixel is broken => it remains always on => it keeps transmitting RED even when is it supposed to be OFF
In order to display white all three subpixels must be ON (=transmitting light?). In additive color mixing this produces white. All pixels are capable of turning on in above scenario so displaying white still works fine.
In order to produce black all three subpixels must be OFF (blocking light?). However, the RED one remains in the ON state here. So when displaying black, the defective RED pixel stays lit.
And then I run into issues:
When displaying RED one would assume the defective pixel turns RED like all the others. But the poster states it turns into a pale grey.
When displaying GREEN one would assume the pixel would turn YELLOW. As GREEN + RED = YELLOW.
Yet the poster says GREEN displays just fine. This is not possible when the RED pixel is always ON.
When displaying BLUE one would assume the pixel would turn MAGENTA. As BLUE+ RED = MAGENTA.
Yet the poster says BLUE turns out to be a pale WHITE.
All kidding aside, I did have fun with the coloured text, but does anyone know why he is seeing these things? There must be some logic that works.
Cheers,
Jeroen