High-definition televisions with LCD screens offer exceptional image quality, but can be compromised by water and moisture damage. The liquid crystal display television screen, with liquid crystals between two thin sheets of glass, is subject to water damage from both direct contact and humidity in the air. The signs of water damage vary depending on the type of damage.
Causes
Several factors can cause water damage on your LCD TV. Obviously, liquid coming in contact with the screen, whether from a leaky roof, flooded house or an accidental spill, is the one of the most common causes of water damage. However, operating the LCD TV in a humid environment can also affect the LCD screen. With time, humid air can get into the LCD TV and damage not only the screen, but the internal electrical components.
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Signs
After an LCD TV is exposed to moisture or has been saturated with liquid, the screen takes on several properties that display definite water damage. When the screen is exposed to high humidity or mist, it may develop water spots. Even after you clean the screen, the moisture spots are still visible and are actually located between the sheets of glass. Heavy saturation of an LCD screen will cause black spots that resemble ink blotches. These spots also settle between the sheets of glass.
Prevention
Apply a screen protector to help prevent damage from accidental spills and excess moisture in the air. Keep the television away from humid areas and keep your household humidity level under control. If a spill or exposure takes place, clean the spill and screen as soon as possible to avoid severe water damage.
Maintenance
As well as protecting your LCD TV screen, screen protectors make it easier to maintain the device. Regularly clean the protector and the screen behind the protector to remove moisture build-up or debris that can scratch the screen. Never spray water directly onto the LCD screen. Using a soft, damp cloth, simply wipe the screen clean.
Repair
Repairing a water-damaged LCD TV is difficult, and results vary based on the problem type, severity and location. If the water damage is minimal or just starting to form in a humid environment, unplug the LCD TV and move it to a dry location. Ensure the TV has several inches clearance from other objects to ensure adequate air flow and allow the moisture to evaporate. If the LCD TV has severe water damage, take it to an electronics shop for screen repair or replacement. If these options aren't feasible, you may have to purchase a new television.