LCD Screen Black Screen Blur Screen 20

It is recommended that you change the monitor to see, if there is still a problem, it is the graphics card that is over. If there is no problem, you can contact the manufacturer to change the monitor.

You can take your LCD to a friend's computer and try it, I don't think it's a problem with the monitor, it's a problem with the graphics card.

The preliminary judgment from the phenomenon of the blurred screen is.

The screen line contact is not good.

Inside the display is a low-voltage differential line connected to the driver board and the LCD screen.

We call it colloquially.

Screen line. It is used by the motherboard to supply power to the screen and transmit differential signals.

If the plug of this cable is not in good contact with the connector of the screen.

The above failures will occur.

The usual is to reinsert it after cleaning.

If that doesn't work.

Just get a new one.

It can generally be solved.

After the blurred screen is repaired, let's see if the black screen phenomenon still exists.

If it doesn't exist, it's caused by the screen line.

If it exists, it is a problem with the backlight circuit.

Continue to repair.

Send it for repair.

1. The first trick: check whether the connection between the monitor and the graphics card is loose. Clutter and speckled screens are the most common phenomenon caused by poor contact.

2. The second trick: check whether the graphics card is overclocked. If the graphics card is overclocked, it will usually appear irregular and intermittent horizontal stripes. In this case, the overclocking amplitude should be reduced appropriately. Note that the first thing to do is to reduce the memory frequency.

3. The third trick: check the quality of the graphics card. If there is a problem with the blurred screen after replacing the graphics card, and it is in use.

After the first and second tricks fail to work, you should check whether the quality of the graphics card's anti-electromagnetic interference and electromagnetic shielding is passable. The specific method is: keep some parts that may produce electromagnetic interference away from the graphics card installation (such as hard disk) as far as possible and then see if the blurred screen disappears.

If you are sure that the electromagnetic shielding function of the graphics card is not up to standard, you should replace the graphics card or make your own shielding cover.

4. The fourth trick: check whether the resolution or refresh rate of the display is set too high. The resolution of the LCD display is generally lower than that of the CRT display, and if it exceeds the best resolution recommended by the manufacturer, there is a possibility that the screen will be blurred.

5. The fifth trick: check whether the incompatible graphics card driver is installed. This situation is generally overlooked, as graphics card drivers are being updated faster and faster (especially for NVIDIA graphics cards) and some users are always eager to install the latest version of the driver.

In fact, some of the latest drivers are either beta versions or optimized versions for a specific graphics card or game, and using them can sometimes lead to a blurred screen. Therefore, it is recommended that you try to use Microsoft-certified drivers, and it is best to use the drivers provided by the graphics card manufacturer.

When the temperature of the LCD display is low, the screen is blurred, which is caused by the dampness of the display. When the temperature is low in winter, the picture shakes so badly that you can't even see the icons and text clearly, but after a minute or two, it will return to normal, this phenomenon mostly occurs in wet weather, and it is due to the moisture inside the display.

To completely solve this problem, you can use the moisture-proof sand in the food packaging to string it with cotton thread, and then open the back cover of the monitor, and hang the moisture-proof sand on the tail of the neck of the picture tube near the tube base. This way, even in wet weather, there will be no more problems.