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LCD Dead Pixels:

LCD, Liquid Crystal Display or Liquid Crystal on Silicon, has been around for some time. This technology can be commonly found in popular HDTVs, computer or laptop monitors and Sony's new PSP. But the downside to LCD screens is the dreaded "dead pixel" or "hot pixel" phenomenon. Dead pixels or "hot pixels" are defined as "a pixel on an LCD monitor that remains unlit, or black, when it should be activated and displaying a color.

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What is an LCD Burn-In?

Images can be "burned" into an LCD panel if left displayed for an extended or considerable period of approximately 24 hours (depending on the images and LCD). But since LCDs are different from monitors with a cathode-ray tube (CRT), an LCD panel can recover in time and disperses the image.

If your LCD monitor is having this problem, turn off the display panel to allow recovery. To prevent this from happening, make it a habit to set your monitor display to automatically turn off if you won't be using it for an hour or so.

Screen Savers

Screensavers are exactly what they are: they save the life of your screen or monitor. When your LCD panel is in the screensaver mode, it keeps the display backlight in use. However, bear in mind that putting the computer to stand-by or shutting it down when it won't be used for a long time is more efficient and preferred to a screensaver.

Cleaning the LCD Screen:
  1. Turn off the computer or display. When cleaning, make sure your LCD is unplugged, and if you use a damp cloth, wait until the screen if completely dry before turning it back on.

  2. Dampen a clean, soft, lint free cloth or paper with water only.

  3. You may also use mild glass cleaner as long as it doesn't contain alcohol or ammonia. Some office or computer supplies stores carry cleaning kits specifically designed for this purpose.

  4. Wipe the screen. Do not spray liquid directly on the screen.

It is important that you read your owner's manual or contact your LCD manufacturer to see what cleaning and handling tips they recommend. Please remember that while it is good to clean your LCD panel every now and then, these screens are not designed for constant touching. By doing so, you risk damaging the pixels or having dead pixels within the LCD screen so be very careful when cleaning your LCD panel.