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LCD Color Corrector?

Posted by ryuzaki0 on from the hue-calibration dept.

colorContrast asks: " I've currently got a Viewsonic VG700b, and as of recent, it has been giving me some trouble. Instead of showing real black, i'm now getting a red hue for black, and the pixels on the screen have become more pronounced than they used to be. The odd thing is that when I brought my monitor home over vacation, the problem was fixed for a short while, but now it appears to be broken again. Does anyone have any suggestions on if its time to get a new LCD, or if they know of a fix for this problem? (I have attempted to manually correct it by changing the colors but that did little.)"

3 of 75 comments (clear)

  1. bad cable? by dnamaners · · Score: 5, Informative

    Sounds like the exact problem had with an old CTR, it when all green. In the end it turned out to be a shorted cable, if you bent it one way it would go normal again. A new cable fixed that. I bet your A.) are using a 25 pin sub-D cable and B.) its cable (or its plug) has gone bad. The fact that it "got better" for some time may indicate this. Check it out.

  2. Well, have you tried... by awing0 · · Score: 4, Insightful

    It could also be your VGA card. I have seen VGA boards go bad in such manners that the make darkened streaks across the screen, off color to complete wrong or missing colors and artifacting/flickering picture. Monitors sometimes go bad in the exact same way! I've been fooled into thinking a display was bad before.

    Also, this is a very slight possibility, but your VGA cable might be bad. If the cable is crimpled or damaged, there may be cross talk among the signal wires. This usually leads to a ghosted image, but may cause color problems.

    So, I'd check your display out on a different PC, with a new cable just to rule out those issues before buying a costly replacement. The case is probably going to be that your display is just bad. Viewsonic isn't a great name in monitors, but then again no one makes a good display anymore.

    As a long shot, but Windows and Mac OS X support color profiles. You might be able to compensate with software depending on your video card. I'm pretty sure X.org has some sort of color profile support, though I may be wrong on that point.

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    Cthulhu Saves.
  3. Calibrate your monitors!!! by Lord+Satri · · Score: 4, Informative

    Any computer user would be **surprised** the difference is makes to calibrate your monitors (thus creating an ICC profile). It allows you to synchronize your monitors, scanners, printers, etc. It works better with macs, but also works with windows (I'm in the process of making it work with Debian).

    Read more here:
    http://www.drycreekphoto.com/Learn/monitor_calibra tion_tools.htm
    http://www.chromix.com/ColorGear/Shop/productdetai l.cxsa?toolid=1086&num=37&fnd=nfound&refcode=cmmea sure&PID=11713

    and of course:
    http://en.wikipedia.org/wiki/ICC_profile

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    Animoog.org