How to solve the flashing of the notebook screen

Most of the screen flashing problem is due to the laptop screen cable contact is bad, because the notebook will be open and close to lead to the screen with the mobile, although the fixed processing, but it is inevitable that some of the classmate's notebook screen will appear loose phenomenon caused by poor contact, When using a laptop or tapping the keyboard, shaking or vibrating the fan of the notebook itself can result in an unstable signal reacting to the flickering of the screen.

Of course, some of the phenomena are caused by the driver, however, the pre-installed system if not the wrong operation, the general driver is not a problem, for the general user there is no good way to solve this issue, because this is necessary to open the computer to get, the proposal sent to the sale to solve.

However, the following reference points are used to understand learning:

General notebook screen flashing because of the screen data cable is not good, loose caused, if the screen of my book before and after shaking, there will be screen flashing. If there is a problem with the screen of the notebook, usually do not appear occasionally flashing phenomenon, only in bad contact with the situation can occur.

There are two ways to fix this:

1. Pry the plastic shell on the keyboard of the computer (my computer can, I do not know if you are able to), the line to drag, so that can be a few weeks.

The picture above is the screen line after the keyboard is open, the position of different notebook is not the same.

2. Can not be handed over to after-sales service processing. It takes 100-200 dollars to get a new line! This will solve the problem of screen flicker forever.

The screen is the only signal path between the notebook motherboard and the LCD high Voltage board. From a technical point of view, the normal boot, the motherboard to the LCD High-voltage plate issued a light signal, when the LCD High-voltage received this signal, will open the LCD lamp power supply, if not the signal, you can not light the LCD lamp. If it appears to have a bad contact or a line breaker, will cause the motherboard issued by the LCD screen light signal can not be conveyed to the LCD High-voltage board, which led to LCD High-voltage plate can not normally open to the LCD lamp power supply, and led to other hardware in the notebook to start normal, but the screen does not show the failure to appear.

Notebook Screen Cable

From the above picture we can understand that the screen itself is very fragile, and it is in the notebook activities of the most frequent screen axis position, and frequent bending notebook LCD screen is the main cause of the damage screen line! Therefore, the author reminds the notebook users, In use should minimize the bending of the laptop LCD screen frequency, at the same time, in the bending process of the force should be even, so as to effectively extend the life of the notebook screen line.

This is more like a problem with the notebook screen itself, as you would see from the question you are reflecting. And you said you were buying Lenovo's notebook. If purchased in the last two years, it is possible to fall into the "Lenovo Flash gives" event. If your notebook is not yet out of warranty, I recommend that you change to a notebook screen after Lenovo sales. If the warranty period, you need to change the screen.

Notebook screen Shaking screen

The price of the notebook screen is more expensive, generally in 1000 to 3000 (original) range, if the private repair, general will take second-hand screen for replacement, generally 600 to 1000 yuan.

Notebook Original Screen

The main control chip of the display card has bad cooling effect, and it will cause the phenomenon of flower screen malfunction. The processing method is to improve the thermal performance of the display card. Video memory speed is too low, when the video memory speed is too low so that can not match the speed of the host, will also produce flower screen phenomenon. The processing method is to replace the higher speed memory, or reduce the speed of the host. Video memory damage, when the video memory is damaged, the system will be started when the flower screen confusion character phenomenon. The processing method is to replace the memory chip. Here to note that some video memory integrated in the graphics chip, encountered this situation must be replaced by the graphics chip. The reason for the virus, in some outbreaks will also appear in the flower screen. Treatment methods for anti-virus software can be eliminated.

Display Flower screen is a very common fault, there are many reasons, different causes of the failure phenomenon also vary, the solution is also different. In the text mode, the flower screen is characterized by character confusion, which is usually represented by graphic layering in graphic mode, and horizontal stripes can be generated by internal or external interference. Here are some tips and experience, I hope you can refer to.

1. The display produces horizontal stripes: There are two main reasons:

1 external interference, such as the display of the use of the site near an electric spark or high-frequency electromagnetic interference, this interference will make the display of the screen to produce white horizontal stripes. Treatment method: Avoid the use of the display in this case;

2) Internal disturbances, this interference will make the display screen appears black horizontal stripes, in this case, you can open the chassis to check whether there is bad contact inside the display, power output or output transformers, and so on, because the reasons for this situation related to more professional technology, So it is better to ask the professional to give the repairs.

2. Display resolution incorrectly caused by the screen: when the display in the win3.x and WIN95 resolution settings are not correct, when you start Windows may appear flower screen fault, that is, the screen layering, jitter, serious even the phenomenon of black screen crash. Processing method: Enter the win3.x of the setup or into the WIN95 safe mode, reset the display mode of the display can be.

3. The display card and the Chinese system conflict: this kind of situation when exits the Chinese system will appear the flower screen, the random keystroke all does not have the reaction, resembles freezes, the processing method: At this time the input "MODE C080" may be solved.

4. Display card's main control chip heat dissipation effect is bad: This also can produce the flower screen fault phenomenon, the processing method: improves the display card the heat dissipation performance.

5. Video memory speed is too low: When the video memory speed is too low to match the speed of the host, it will also produce a flower screen phenomenon, processing methods: Replace more high-speed video memory, or reduce the speed of the host.

6. Video memory Damage: When the video memory damage, the system will be started when the flower screen Chaos character phenomenon, processing method: Must replace the memory bar.

7. Virus reason: In some virus outbreak will also appear flower screen, processing method: Antivirus with anti-virus software can eliminate

Notebook screen flashing in the previous few years of notebook maintenance accounted for a considerable proportion, but due to the gradual reduction of the life of the notebook and led backlight to become the mainstream, this fault in the maintenance of less and more to see, here is only good for you to analyze the causes of this failure and solutions.

There are three common reasons for notebook screen flicker: screen flashing caused by backlight and motherboard charging switching circuit caused by screen flash (old LCD backlight power screen), and the quality of the screen itself. The following is an analysis of these three cases in turn.

One: screen backlight caused by the screen flicker failure performance: notebook backlight flicker, frequency is very fast, sometimes flash several times, sometimes it lasts a few minutes. This is the case because of the instability of the high-voltage plate supplied to the screen backlight or the connection of the solder joint at the junction of the lamp is not strong. The high pressure plate caused by the screen flash can be replaced by the high-voltage plate can solve the problem. In our daily maintenance, sometimes out of the original high-voltage plate prices and sourcing reasons have to be modified by the general high pressure plate to achieve maintenance purposes. Related content Please read "notebook screen dark reason and common maintenance method" lamp joint at the virtual welding caused by the screen flashing time long the consequences are more serious, carefully observe the lower left corner of the screen or the lower right corner will have a small piece of black shadow, this is the joint of virtual welding caused by the ignition has been burned around the components. After the repair also cannot remove this small shadow.

Second: The motherboard charging switching circuit caused by screen flicker failure performance: notebook in the battery and power adapter when used at the same time when the screen flashing, while the lower right corner of the screen charge indicator logo will be constantly switching, single power supply when the failure phenomenon disappeared. This fault in the notebook repair is relatively rare, mainly due to the motherboard on the battery switching circuit is not the instability of the components of the motherboard charging circuit components to repair the fault can be repaired. There is also a situation due to the quality of the power adapter caused by the best to remind everyone here, the power adapter as far as possible with the original, or with a good quality OEM products. Do not cheap use dozens of yuan power supply, this kind of power is held in the hand lightly, its material can be imagined.

Three: Screen flicker caused by the screen itself in fact, in recent years the notebook screen flicker caused by a large proportion of the reason that it was put in the end because this situation is limited to the same batch of several models of notebooks. The specific fault performance is: Generally first in the notebook computer screen will have a bright line, before long, the bright line will evolve to screen flashing.