What s going on with the red dot on the LCD screen

This has nothing to do with the display signal of the display,Mainly because the panel grade is too low,That is to say, the quality of the LCD panel is not good,The panel is composed of thousands of RGB points,It is also officially the work of these three colors will appear in various colors in front of our eyes,When we start to boot up, it is because the resolution is not high,RGB three primary colors。

The range of points is large, so you can see the red dots, at this time, the red dots you see are caused by problems with the r points, and this point is not a whole, just a part, because the resolution is high after you enter the system, these points are divided into very fine work, I don't know if you can understand, I don't understand because you don't know enough about the internal structure of the LCD panel, we are engaged in maintenance every day under the microscope, For example, over 800x600 is that the panel is divided into 800x3 (3 refers to the three vertical lines of RGB) vertical lines and 600 (this does not need x3) RGB horizontal lines, the plane composed of 1024x768 can be calculated according to the above, is the point smaller, the point here is rectangular, you can't see it on the microscope! I hope you understand what I'm talking about!

LCD monitors have a lifespan, officially 7-10 years, but in fact, it's not that long at all, two or three years. If you use it frequently, your life will shorten faster.

The flickering screen is a problem with the display and the dust of the chassis has nothing to do with it, it may be that the LCD material of the display is aging, it may also be that there is a strong magnetic field around the machine, or it may be that the machine has been used for a long time, and the display is not working steadily.

There may be a problem with the graphics card, you check the graphics card, update the graphics card driver to try, no, only send it for repair.

There are times when our monitor has a red dot flashing, what should we do? Let me give you a brief introduction to the reasons and solutions for the display to have red dots flashing! Hope you enjoy it!

Causes and solutions for flashing red dots on the displayBoth graphics and displays are possible, but graphics cards are a bit more likely.

If it's a display problem, it should be the driver chip, it is recommended that you cross-change the monitor and the host with another computer that has no problems, if it's still a bad monitor, it's a problem with the display, if it's a good monitor, it's a graphics card. If there is no problem, it is a problem with the compatibility of the graphics card and the monitor.

Secondly: check whether the interface of this cable is loose, the interface of the computer host and the interface of the monitor;

Reason 2: The graphics card in the computer is not well driven; Software enters the driver;

Reason 3: The monitor refresh rate is not set correctly;

Right-click on the blank space of the high mountain dot desktop, select "Screen Resolution", and then select "Advanced Settings".

Reason 4: There is a problem with the graphics card of the computer; Check your computer's graphics card to see if there is a problem with the graphics card itself or a problem with the interface contact;

Reason 5: Display problem;

It's a dead pixel. Because the LCD panel is cut through a whole board through the collapse,Each pixel of the LCD is composed of red、green、Blue3 pixel units,You can abstractly regard the LCD as a video wall that displays the picture,But each TV can only display a complete image leaky acorn,And each pixel unit corresponds to its own drive tube。

Due to the problem of resolution, it is inevitable that the driver tube will be damaged during the production process of the LCD panel, and when the driver tube is damaged, then the corresponding pixel will be missing a color unit. At this time, there are bright spots or dark spots when the liquid crystal is displayed, and these points are what everyone usually calls the liquid crystal dead pixels and bright spots.

To put it simply, the bright spot is only the point where the LCD panel lacks a color, and the point will not affect other points, and the bad pixel is a more serious point than the bright spot, which not only makes the liquid crystal lack a color point, but also affects other points, and the diffusion characteristics of the bad pixel will cause other normal points to become bright spots or bad pixels.

Sometimes we don't know what's going on, we have a red dot on our monitor, what should we do? Let me introduce you to the solution to a red dot on the monitor! Hope it helps!

Solution 1 for a red dot on the monitor:

Pressing the Auto A button on the screen or the reset button in the monitor menu can solve the problem.

The position of the keys is shown below. Generally, Auto or A is displayed, and the position is generally at the bottom right, under the right, at the bottom of the right, and so on.

The reset key of the monitor menu can also meet the requirements of the positive position of the screen.

Solution 2 for a red dot on the monitor:

1. There may be a problem with the graphics card, the graphics card has a blurred screen, you can remove it and clean it, especially on the motherboard interface.

Second, if it is an integrated graphics card, then it is a memory problem, the memory is dirty, clean it.

3. Graphics card driver problem, it is possible that the graphics card driver file is damaged (all caused by viruses and antivirus software), reinstall the graphics card driver.

Fourth, the display problem is not ruled out.

If you have black spots on your computer screen, it may be that the phosphor has fallen off, or there is some dust on it, or the grating hole is blocked by dust. The manufacture of the CRT is very complicated, it is not easy to avoid the bad pixels of the CRT, only after the CRT is broken, we can know that the CRT with black spots can not be repaired, if the number of black dots is not very much, it will not affect your ** and use, then it doesn't matter, if the black dots are too many and too big, then the display is about to be unusable, and you can only change to a new monitor.

The display is full of sources, and the screen flashes red dots, which are not viruses.

If the refresh rate is set too low, it will cause the screen to shake, the check method is to right-click the blank area of the system desktop, and click the "Properties" command from the pop-up right-click menu to enter the property setting window of the monitor.

Precautions for the use of the monitor:Its radiation index is generally lower than that of CRT. The radiation of liquid crystal monitors is much lower than that of CRT monitors (just low, not completely devoid of radiation, electronic products are more or less radiated), which is a boon for people who work in front of a computer all day.

Due to its principle, there is no geometric distortion, linear distortion, which is also a big advantage.