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How to Solve the Full Color LED Display Blurred?

2018-08-04 www.myddisplay.com

How to solve the LED display screen failure? The full color LED display screen can not be displayed normally for a variety of reasons, we have summarized some methods to solve the full-color LED display screen blurred.

If the new LED display screen is blurred when powered on, it may be that the scanned type of control card are not settings correctly, or the cable is not plugged in (checking the cable from the control card to the first LED module). This problem can also occur when the 5V power supply is connected incorrectly.

If you suddenly find this phenomenon after using it for a while, in addition to the control card failure, the most possibility is that the water have flowed into the LED module to burn the chip or power supply.

Meiyad Indoor Full Color LED Display

Also, trying to connect the display of a DVI interface first, see if the DVI output port of the graphics card is normal. In general, the Linsn card's resolution is 1024*768. The cause of the LED display screen may also be a problem with the graphics card or a driver. Try to unplug the network cable of the receiving card behind the display and press the debug button on the receiving card to see if the screen scan is normal.

In addition, other reasons for the full color LED display screen, we also provide you with reference:

1. LED display screen blurred can not be displayed


Checking if the electronic display power supply is normal, whether there is voltage input.

2. LED electronic display is not normal and blurred


(1) Whether the LED control card parameter setting is correct, and whether there is any signal transmitted to the electronic display LED control card.

(2) Whether the communication line is communicating normally, checking whether the LED display control card has signal input.

(3) Confirming that the LED display screen control card 5V power supply is normal.

3. The part of the electronic display screen is not normal, such as black screen, blurred screen.


Checking whether the screen power supply showing abnormality is working normally, whether the signal transmission line is faulty, whether the single LED module of the screen body is faulty.

(1) Checking whether the line from the output interface to the signal output IC is connected or shorted.

(2) Checking whether the line from the output interface to the signal output IC is connected or shorted.

(3) Checking if the clock latch signal of the output port is normal.

(4) It is detected whether the cascaded output data port between the last driver IC is connected to the data port of the output interface or is short-circuited.

4. The computer chassis is not well cooled, causing the temperature of the graphics card to rise.


Eliminating heat dissipation issues. Checking whether the fan is running normally, refuel the fan, clean the dust inside the computer chassis, and solve the heat dissipation problem.

5. Reinstalling the system, graphics card or display does not support high resolution.


(1) Restart the computer, press F8 continuously, in the advanced startup menu, choose to enter the "Safe Mode" Enter to log in to the system, then enter the display settings under Windows, select the 16-color state, click the "Apply" button, and click the "Enter" button.

(2) Restart the computer, in the normal mode of Windows, enter the device manager, delete the graphics driver, then restart the computer.

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