What causes the discoloration of the computer screen

There are three reasons, one is aging, which is the most common, but if it is only used for about 3 years, aging is abnormal, and the second is virtual welding, that is, some parts of the display are not welded well when welding, and are affected by cold shrinkage and heat expansion, resulting in poor contact, so that the effect can be slapped hard, sometimes it can be normal, and there is a loose picture tube behind, you can open the back cover of the display, and see that there are several round things that rotate each other, and the angle of rotation is very small and can be adjusted. It is responsible for the control of color, you still find a professional person to adjust better, the result of this phenomenon is the display of the word or edge of a certain color deviation, very incongruous, as if there is an extra shadow!!

1. The inside of the monitor is dirty.

2. Aging of display components.

3. Poor contact between the graphics card and the display.

There are 2 kinds of this phenomenon that I have seen, first, the aging of the picture tube, in this case, there is no help, hurry up and prepare for the future. There is another one, because it has been used for a long time, the VGA cable behind the display itself is aging or in poor contact with the machine, this situation is very common, just replace it with a VGA cable with excellent texture. The landlord carefully tested it, repeatedly, twisted the VGA cable back and forth, and if he found that the color could change back, it meant that this was the case.

The most likely is the aging of the display, again it may be that the graphics card is in poor contact with the motherboard, and it is also possible that you have something like a magnetization cup around the monitor that can generate a magnetic field, which will also affect the color display of the display.

Maybe the magnetic field of the display is too strong, cancel the magnetism and see, see if there is a strong magnetic field such as sound in the place close to the display, if there is one, move a position to see if it is okay.

Because it is caused by the aging of the display, Samsung displays are one of the most susceptible to aging of all displays.

The graphics card is broken, and my computer is often like this, as long as I don't watch TV and play games, it's okay, I use Samsung's upstairs graphics card said that it is the easiest to age, hehe, don't waste it if you can still use it, ha:p

Aging is of course to buy a new one.

If it is magnetized, the color TV demagnetizer can also have an effect on the display demagnetization.

What if the computer screen changes color? The color of the computer screen is not normal, how to fix it? Is the screen sale disturbing broken? The workarounds for what's going on with computer screen discoloration are mentioned below.

This operation takes Dell computer as an example, and the specific operation steps are as follows:

The first one,It can be caused by the aging of the graphics card. Nonsense.

The integrated graphics card is likely to cause this change in the color of the computer screen. The screen should not only be purple, but also blue. The same goes for some old PCI** cards. It is recommended to replace the graphics card.

The second,It is caused by poor contact of the transistors on the display motherboard.

The problem of color change on the computer screen can be solved by welding.

The third,It is the display that performs the conversion of the three primary colors.

In other words, when there is no signal, all the colors are always changing. This is the machine factory model. Each monitor exits factory mode in a different way, so it's best to give a business punch at this point.

It is estimated that the screen line may be relatively large. If the connection is not good, test your display. If the display screen is good, reinstall the graphics driver, check the cable between the monitor and the console, and tighten the top and bottom on the back of the computer to resolve the issue.

Fourth,The graphics card is overheating and causing a failure.

Since graphics card chips generate a lot of heat during operation, better heat dissipation conditions are required. If the cooling fan is damaged, the graphics card will overheat and not work properly. Graphics card overheating failures often lead to unstable system crashes, screen failures, and other glitches.

If the graphics card overheats, simply replace the cooling fan.

The fifth,It is the failure of the graphics card driver that usually leads to system instability and crashes, the display becomes colorful, the graphics card is incomplete, and so on.

Card driver failures mainly include card driver loss, card driver incompatibility with the system, card driver corruption, inability to install card driver, etc. For graphics driver failures, you usually type in Device Manager to see if the graphics card has a driver. If not, reinstall it.

Often, if there is a "! "Please remove the graphics driver and reinstall it after you can install the new driver. If the graphics card driver fails to install, there is usually a problem with the driver or registry.

Sixth,When a display is magnetized, colored spots usually appear.

The main reason for the display to be magnetized is the proximity of the display to a magnetic object, or the displacement of the deflection coil in the machine after moving the display, or the damage of the degaussing circuit. The magnetization of the display can be demagnetized by using the demagnetization function of the display itself. Here's how to eliminate it:

Open the function menu of the monitor, select the degaussing option for degaussing, and then hear the "bang" of the display, the display shakes violently, and the degaussing is completed.