Computer TnT

What is a stuck pixel?

A stuck pixel will usually be most visible against a black background, where it will appear red, green, blue, cyan, magenta, or yellow, although stuck red, green, or blue pixels are most common.
Each pixel on an LCD monitor is composed of three sub pixels (one red, one green, and one blue) which produce the visible color of the pixel by their relative brightness.
A stuck pixel results from a manufacturing defect, which leaves one or more of these sub-pixels permanently turned on or off.

Unlike dead pixel, which is a defective pixel that remains unlit, a stuck pixel can actually be fix.

Some may ask, isn't Computer Tips and Tricks all about Software? Why LCD Monitor?

Recently I've come across this Stuck Pixel problem on my Laptop. After much research and trying, I've only managed to fix 1 out of 2 Stuck Pixel.

So I've decided to share these method which I've used and hope you guys out there could share with me yours as to fix my Last Stuck Pixel!

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).

From what I've read, there's mainly 3 method of fixing: Software, Pressure and Tapping.


Software Method

Just like what it's named, try running pixel fixing software. Stuck pixels can often be re-energized by rapidly turning them on and off.

JScreenFix is what I've used and effectively fixed 1 of my Stuck Pixel.


Pressure Method

Try it only if Software Method doesn't work for you.

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 method is especially useful when the liquid in the liquid crystal has not spread into each little pixel. This liquid is used with the back light on your monitor, allowing different amounts of light through, which creates the different colors.


Tapping Method

Try it only if Software Method doesn't work for you.

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 back lighting 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. 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 apply slightly more pressure.

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.


Additional Tips and Information from WikiHow

- 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.

- Alternative technique to Pressure Method: Gently massage the Stuck Pixel with a warm damp (not wet) soft cloth.

- Alternative technique to Tapping Method: Using a rounded pencil eraser, push with moderate pressure into screen at stuck pixel.


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.

- Try all methods at own risk, Computer Tips and Tricks shall not be held responsible for any damage or loss.



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