Why is there a small purple mark on a computer screen

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 "pigmentation" 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 may also be caused by the contact between the monitor signal cable or the graphics card and the motherboard slot, which you can try by gently moving the display signal cable.

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.

Right-click on "My Computer", left-click on "Properties", "Advanced", "Settings", then "Settings" in "Performance", select "Custom" in the "Visual Effects" tab, and then keep the tick in front of "Use shadows for icon labels on desktop", and then OK.

Available for Windows XP and Windows 2003.

If not, right-click on the blank space of the desktop, click "Properties", click the "Desktop" tab, click the "Customize Desktop" button, click the "Web" tab, delete all the ** in the box under the "Web Page", and keep it unchecked before "Lock Desktop Project", OK.

It's called a dark spot.,Can't be repaired.,You're going to be there.。。

The screen has a dead pixel, it is recommended to replace it with another one, or overhaul it.

It could be that the screen has a dead pixel. Go get it tested.

The purple patches on the mobile phone screen are still expanding, and the uproar is generally caused by the damage of the original parts related to the mobile phone screen, mostly on the inner screen of the mobile phone.

The reason why the purple patches on the screen of the mobile phone are still expanding:

1. The cable of the mobile phone is broken: The cable connecting the screen and the motherboard is damaged, resulting in a problem with the screen.

Solution: Contact the after-sales service of the mobile phone, let the professional overhaul, or go to the professional hand beater repair station to replace the mobile phone cable.

2. The screen is broken: The main thing is that the LCD screen is broken, which causes problems with the screen, and generally the whole screen needs to be replaced.

Solution: After contacting the mobile phone, let a professional repair it or go to a professional mobile phone repair station to replace the screen.

3. Mobile phone screen leakage: Screen leakage refers to the strong squeeze of the LCD screen by external force, which causes the LCD screen to leak slowly, which is usually more serious.

Solution: If there is a leakage on the screen of the mobile phone, and it is already very serious, and even there is liquid outflow, it is recommended to turn off the mobile phone immediately, and then contact the mobile phone after-sales service to let the professional overhaul.

This answer applies to most brands of smartphones, such as Huawei and Apple.

This is obviously a dead pixel on the LCD screen.

The dots that will be displayed when turned on and will not change color and disappear belong to a kind of bad pixels, called bright spots, and correspondingly, the dots that are always black and will not light up are called dark spots.

Whether it's a dark spot or a bright spot, it's a hardware problem with the screen, and it can't be repaired.

It may be that the mobile phone is usually accidentally collided, causing a little leakage of the LCD, if it does not affect the use, you can ignore him, if the damage is getting bigger and bigger, you need to repair and replace.

I think there will be a little bit of purple, which can be debugged directly, and other colors can also be set directly.

Invisible to the naked eye, this is a distance sensor, using the principle of infrared, this is normal and does not affect the use.

If this happens on your phone, your phone must be weighed down by something heavier, so go and change it!

I don't see what's wrong with the screen in **!

You can also do a few solid colors of screen size**, and you can also simply test it when you open it with a browser.

It is best that the screen does not have a film, and fine dust and bubbles will affect the screen detection!!

Causes and solutions for purple patches on the mobile phone screen:

1. If the mobile phone screen is broken due to falling or other reasons, it is recommended to back up all kinds of data on the mobile phone and send it to the mobile phone repair location for repair.

2. Caused by unstable battery voltage. Try replacing your phone's battery.

3. Caused by hardware damage to the mobile phone, such as damage to the display screen. It is recommended to send it to the after-sales service for inspection and repair, and replace the display screen.

The mobile phone screen, also known as the display screen, is used to display images and colors. The screen size is calculated according to the diagonal of the screen, usually in inches, which refers to the diagonal length of the screen. With the gradual popularization of mobile phone color screens, the material of mobile phone screens is becoming more and more important.

The color screen of mobile phones varies due to the quality of LCD and R&D technology, and its types are roughly TFT, TFD, UFB, STN and OLED. Generally speaking, the more colors that can be displayed, the more complex images can be displayed, and the more layers of the picture will be.

On the screen, if there is a purple dot, then in fact, this should be the LCD screen in the screen, which is caused by his leakage.

The reason for this is usually due to magnetic field interference or poor contact with the graphics card.

Determine whether it is magnetic field interference: the main symptom of the display is magnetization, and the main symptoms are "stains" in some areas, and the local image is dark or lightened.

Solution: The current display, more have the degaussing function, after entering the settings menu of the display, select the degaussing menu, the display screen shakes, and the degaussing process is completed (it may need to be repeated several times). If it still doesn't work, the reason is poor contact with the graphics card.

2.Solution to poor contact of the graphics card: check each connector at boot, plug and unplug it repeatedly, and then power on and check it when the back cover is opened, and repeatedly check the connector and signal cable until the fault is eliminated.

If this happens on your computer, you can try the following methods to solve it:

1. If the LCD screen is broken, it should be a bright spot, and it is similar to the phenomenon of a flower screen, but the damaged position will not move.

2. If it's just a black mark, it shouldn't be that the display screen is broken. Try to check if it's a problem with the graphics card, remove the graphics card, wipe it and put it back to see, it should be solved.

Look at what kind of red you are,If it's not the color of the stain,Then you have to pay attention,Change a monochrome (preferably light color) screensaver,See if it's still red (it may be like brushed or broken),In this case, it may be that the screen core is broken,In this case, it is not in the warranty (home machine warranty for two years,Business machine warranty for 3 years),You can take it to change the screen core,Samsung's screen core is about 650 yuan,I hope my answer can help you。

Is there any time after the shutdown?

Can you tell if it's a hardware problem or a software problem?

If it's software, restart it to see if there's any.

Open the Process Manager and close the suspicious program.

If it's hardware, is it a hard injury to the display?