How to fix a webpage flicker problem

Screen Flicker Failure Analysis:

Failure phenomena:

1, the screen edge has a flicker phenomenon;

2, the whole screen has a flashing phenomenon;

3, a corner of the screen has a flashing phenomenon.

Misunderstanding of Fault point:

Many people think that this is the power supply voltage is not enough or unstable, some "master" may even be said to be due to some electronic ballast lamps or electromechanical electrical appliances brought to the color display power interference, some people say that the video card has a hardware failure. In fact, these views are wrong, because the voltage requirements of the monitor is not very strict-at present, most of the color display can be in the 100v~240v power supply voltage normal operation. Of course, if the voltage is too low or the voltage fluctuation is too large, then do not recognize the theory, but in the past two years, the national implementation of the national Rural power grid has now begun to bear fruit, has fundamentally resolved the past rural voltage instability, low voltage problems, and in the city these problems are usually not exist, So these factors are no longer important. As for other electrical appliances will cause interference is even more impossible, after all, color display is not the use of mutual-inductance voltage regulator power supply, and other electrical appliances even if the interference will not be the screen flashing!

Causes and Countermeasures of faults:

The cause of the real failure of the first two kinds of faults is usually caused by the reduction of the capacitance capacity of the +300v filter in the part of the circuit or the power supply. The latter is not likely to be high--only in individual models and in the case of a more serious loss of capacity, the human eye can be identified flicker. In addition, some models of the view of the power supply part of the circuit is very special, sometimes the part of a component of the virtual welding will also cause this failure phenomenon. Of course, if you set the display resolution and refresh rate is high or too low can also cause such a failure, so you can set the resolution and refresh rate as the intermediate value Test (note: The long-term operation in the overclocking state will cause some components aging and this failure, and the point of failure is difficult to find). There is a bug in the driver of the video card or monitor, so you should try to update the driver first. If none of the above treatments are valid, you can focus on whether the high voltage and high voltage generated by the HV package are normal, because sometimes these two voltages can cause such phenomena. Note: If you turn on the TV also has flashing, it is necessary to check the mains power supply if there is a problem-if the capacity is too small or too large voltage fluctuations (preferably to find an electrician to check).

In general, the maintenance of this type of failure requires you to have a certain degree of hands-on ability and professional knowledge, so I recommend that if you do not repair the simple cause of failure after the delivery of Electrical maintenance department to deal with.

Sometimes some with magnetic items (such as some low-grade power box or ADSL outside the cat power supply, etc.) placed near the display will cause a certain corner of the screen flashing, so encountered this phenomenon should first try to clear the display around the items to see, usually problems can be resolved.

Question two: What if I turn on the web screen?

Many friends in the use of the computer to browse the Web, a browser open, the computer's monitor screen will blink, how to solve this situation? In fact, it is very simple, the general appearance of the computer, the display is CRT, LCD monitor will not have this problem. So in the face of this problem, just need to adjust the display of the refresh rate is good. It is generally tuned to around 80 Hz and the display will not blink as long as it is above 75 Hz. Here's how to adjust the refresh rate:

First, right click on the desktop blank out, and then select the Properties option.

Then, in the Properties dialog box, open the Settings tab, and click the Advanced button below.

Finally, in the dialog box that pops up, open the Monitor tab and select the Frequency in the check box below.