The color of the computer has changed, and the color of the computer has suddenly changed strangely,

Because according to the principle of optics, any color can be mixed with three colors: R (red), G (green), and B (blue) through a certain intensity ratio. These three colors are called triprimary colors.

And the display works according to this principle, the display is used R channel, G channel, B channel to control the color display, and once there is a channel problem, it will lead to the lack of a primary color no matter what color and produce color changes, because we are in the computer, most places are bright colors, that is, it is closer to white, for example, when you open the browser, the background color of the web page is mostly white, take white as an example:

Because white is a mixture of R, G, and B primary colors at the highest intensity, and the computer uses numerical values as (255,255,255), at this time, if there is a problem with one of the color channels, it will cause the change of the primary color to be missing, or weakened, for example.

If the blue channel is broken, that is, it becomes (255,255,0), the white will become yellow, and the whole screen will appear yellow.

If there is a problem with the green channel, i.e. (255,0,255), the white becomes purple and the screen appears purple.

If there is a problem with the red, it will appear sky blue.

If there is a problem with both, such as red and green, the screen will appear blue.

However, the general channel problem is caused by the poor contact of a certain part, virtual welding, which is why sometimes you use your hand to pat it and it will get better, because the vibration generated by the slapping will make those parts that are not in good contact again.

Some monitor discoloration occurs after being turned on for a while, then comes back after a while, and then changes ,...... after a whileThis situation is because of the poor contact, the resistance at the contact point increases, a lot of heat will be generated, and the contact point of the part will be completely separated due to thermal expansion and cold contraction, resulting in circuit breaking, so that the channel stops working, causing the screen to change color: then because the contact point is separated, no heat is generated, the contact point begins to cool, and the contact point of the part will heal the contact point again due to thermal expansion and cold contraction, the channel will start to work again, the screen will return to normal, and then ...... againAnd so on.

If there is a discoloration of the display,Generally shake a few times will recover,If you're lucky,Will shake the place of the virtual soldering to the right position,And then there will be no discoloration for a long time,That's how my monitor is,Good luck last time,It hasn't changed color until now,It's just that I don't dare to touch the monitor anymore.,Wait for a touch and then there will be a problem pulling。

But I still recommend taking it to a repair shop to repair it,Generally, those who repair TVs will repair it,If you're a CRT monitor,If it's LCD,Then you have to take it to a place that specializes in repairing monitors。

It could be that there is something wrong with your monitor!

The sudden discoloration of the screen is usually due to magnetic field interference or poor contact with the graphics card.

1.Let's see if it's magnetized.

The main symptom of the display being magnetized is the appearance of "dark spots" in some areas, and the local image is darkened or lightened. The method of removing CRT magnetization is not too complicated. Now the display, there are many degaussing functions, after entering the settings menu of the display, select the degaussing menu, the display screen shakes, the process of degaussing is completed, you may need to press the degaussing button several times to completely remove the abnormal color.

If you can't solve the problem completely, then you can take it to the monitor repair manufacturer to use a degaussing coil or degaussing rod to degauss. However, the above symptoms do not necessarily mean that the display is magnetized. These color changes can also be caused by display signal lines or graphics cards.

If there is a contact problem with the motherboard slot, you can try to gently move the monitor signal cable to judge. If there is no change in color. Turn off the computer as normal, open the case, unplug and plug back the graphics card, and the color of the screen is restored, then it should be a contact problem; If there is no change, it must be that the picture tube is magnetized.

2.If it's not magnetized, it's a poor contact. Turn on and check each connector, plug and unplug repeatedly, and then power on to check with the back cover open, and repeatedly check the connector and signal cable until the fault is eliminated.

The display image of the monitor is normal, but the color is suddenly greenish or reddish, which is generally caused by poor contact of the signal line of the monitor.

Sudden color casts on the display are common in displays that use the VGA interface. The VGA interface is an analog interface, which transmits red, green, and blue signals simultaneously through the signal line. When the interface is not in good contact or the internal cable is damaged, a signal may be missing, and the color will be distributed.

For this kind of failure, it is generally good to fix the display signal cable carefully. If you still have occasional color casts, replacing the monitor signal cable will solve the problem completely.

1. The contact of the display line is not real, and it is plugged in, including the display end and the computer end; or change the cable (the data cable may be damaged, or the connector is abnormal).

2. If the graphics card fails, the motherboard generally also has a display output Yu Kaikou, try the motherboard interface in the case of eliminating wiring and display abnormalities.

In addition, now the graphics card has an auxiliary power cable, see if the positive shot is connected normally: whether there is a false contact, or not connected.

3. After the chassis is turned on, whether the hard disk light flashes normally (after entering the system normally, it will be destroyed without reading and writing the disk); If the disk lights are not normal, go directly to the repair shop to check whether the motherboard or power supply is faulty.

Computer Blur Screen Computer Blur Screen Solution:

1. The case does not dissipate well, resulting in a blurred screen caused by the temperature of the graphics card. The solution is to eliminate heat dissipation issues. Check whether the fan is running normally, refuel the fan, clean up the dust in the case, and solve the heat dissipation problem.

2. The solution caused by the graphics card or display not supporting high resolution: return to origin.

1. Restart the computer, press the F8 key continuously, jump out of the advanced boot menu, select enter the safe mode to log in to the system, and then enter the display settings under windows, select the 16-color state in the leaky beam state, click the application button, and click the OK button.

2. Restart the computer, in Windows normal mode, enter the Device Manager, delete the graphics card driver, and restart the computer.

3. The graphics card is loose, and unplugging the graphics card and reinserting it after shutting down usually solves the problem.

4. The system is overheated, including the CPU temperature is too high and the graphics card chip temperature is too high. You can install cooling fans in the appropriate locations in the case, or place the case in a well-ventilated area.