How to Fix a Stuck Pixel on an LCD Monitor

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If your LCD screen has a stuck or dead pixel (a point on the screen that is always lit or always dark), it is usually due to a transistor malfunction or uneven distribution of liquid in the liquid crystal display (TFT LCD). This can often be fixed.

Steps

Software Method

1. Try running pixel fixing software (see Sources and Citations). Stuck pixels can often be re-energised by rapidly turning them on and off. If this fails, complete the following steps.

Pressure Method

1. Turn off your computer's monitor.
2. Get yourself a damp washcloth, so that you don't scratch your screen.
3. Take a household pen, pencil, screwdriver, or some other sort of instrument with a focused, but relatively dull, point. A very good tool would be a PDA stylus.
4. Fold the washcloth to make sure you don't accidentally puncture it and scratch the screen.
5. Apply pressure through the folded washcloth with the instrument to exactly where the stuck pixel is. Try not to put pressure anywhere else, as this may make more stuck pixels.
6. While applying pressure, turn on your computer and screen.
7. Remove pressure and the stuck pixel should be gone. This works as the liquid in the liquid crystal has not spread into each little pixel. This liquid is used with the backlight on your monitor, allowing different amounts of light through, which creates the different colors.

Tapping Method

1. Turn on the computer and LCD screen.
2. Display a black image, which will show the stuck pixel very clearly against the background. (It is very important that you are showing a black image and not just a blank signal, as you need the backlighting of the LCD to be illuminating the back of the panel).
3. Find a pen with a rounded end. A Sharpie marker with the cap on should be fine for this.
4. Use the rounded end of the pen to gently tap where the stuck pixel is - not too hard to start with, just enough to see a quick white glow under the point of contact. If you didn't see a white glow, then you didn't tap hard enough, so use just slightly more pressure this time.
5. Start tapping gently. Increase the pressure on the taps gradually for 5-10 taps until the pixel rights itself.
6. Display a white image (an empty text document is good for this) to verify that you haven't accidentally caused more damage than you fixed.

Tips

• If the pressure and tapping don't work directly on the stuck pixel, start moving outward around the stuck pixel. If you see the pixel flicker while doing this then you know where you can focus the pressure and tapping techniques rather than directly on the pixel.
• Many people report success with this technique but these instructions won't work in every case. It may take a few attempts to make sure you are pressing exactly on the stuck pixel.
• These instructions will fix "stuck" pixels, not "dead" ones. Dead pixels appear black while stuck pixels can be one constant color like red, blue or green.
• An alternative, but similar technique involves gently massaging the stuck pixel with a warm damp (not wet) soft cloth.
• Alternative technique to tapping: Using a rounded pencil eraser, push with moderate pressure into screen at stuck pixel.
• If these instructions don't work, you can hopefully get the monitor replaced through your manufacturer. If your monitor falls under the specifications of replacement, get in contact with the manufacturer to set up replacement plans.

Warnings

• Do not attempt to open the monitor as it will void the warranty and the manufacturer will not replace it.
• Make sure you don't get any electrical equipment wet or it may break.
• Some people claim that touching the screen can cause more pixels to become stuck, although this has not been proven.
• Be prepared to suffer a complete loss; you may crack the glass when tapping or putting pressure on an LCD assembly.

by : wikihow

How to care for your LCD TV

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Caring for your LCD TV

Temperature / Humidity

It is recommended to use the product at room temperature and humidity in order to maintain it's optimum performance

1. Product lifetime can be shortened when it is used under conditions of high temperature and humidity.
	2. When it is used at low temperature of 10°C or lower, response time and brightness are affected in such a way that the proper display may not be obtained.
3. When exposed to drastic fluctuation of temperature (hot to cold or cold to hot), the product may be affected; specifically, drastic temperature fluctuation from cold to hot, produces dew on the surface which may affect the operation of the polarizer and product.
Environmental Consideration It is recommended to use the product in a clean place and to exercise caution to ensure it is not affected by dust or liquids, etc.
1. If used in dusty place, dust may cause an electrical short inside the product resulting in malfunction
	2. If the product is contaminated by humid or liquid substance, polarizer may be discolored. If the liquid enters may enter the product to cause electrical failure or corrosion which, in turn, may lead to malfunction
Handling As LCD is a product made of glass, caution must be exercised in using it. It is recommended to handle it with care since shock, vibration, and careless handling may seriously affect the product.
1. The LCD surface is made of a soft film that is vulnerable to scratch and thus to damage by a sharp article.
	2. Since the LCD is made of glass, it may be damaged if it is bent. If it falls from a high place or receives a strong shock, the glass may be broken.
3. The LCD product is composed of sensitive electronic parts and components. Therefore it must be grounded by ESD protection equipment (wrist band, etc.) before it is directly handled.
	4. It is recommended that the product be handled with soft gloves during Assembly, etc. The LCD surface is made of soft film, vulnerable to scratches and thus to damage by a sharp articles.
5. Do not bend or stretch the back light wire.
	6. It is recommended that the product surface be cleaned it is dirty by using IPA (Isoprophyl Alcohol) or Hexane. Keytone type material (Acetone), Ethyl or Methyl chloride must not be used as they can cause damage to the Polarizer.
7. The Driver IC of the LCD TV for a Notebook PC is exposed on the back of the screen. If mechanical stress is applied to this area, it can cause failure. Do not hold or press this part with your hands.
Usage As LCD is a sensitive electronic equipment, it is urged to comply with following precautions.
1. Never disassemble LCD product under any circumstances. If unqualified operators or users assemble the product after disassembling it, it may not function or its operation may be seriously affected.
	2. When it is not in use, the screen must be turned off or the pattern must be frequently changed by a screen saver. If it displays the same pattern for a long period of time, brightness down/image sticking may develop due to the LCD structure.
3. It is recommended that the product be stored in a cool and dry place in its original product box.
	4. Please dispose of the product according to the relevant laws and regulations. A small quantity of mercury is contained in lamp inside LCD product.

by: lcdtvbuyingguide