Generally speaking, there are two connection modes between the computer and LCD: VGA connection and HDMI high-definition connection. If neither connection method can be used, you must adjust the TV screen to the corresponding input port (the computer and TV are connected by VGA, so the TV input method must also be adjusted to VGA; The computer and the TV are connected by HDMI, and the TV usually has several sets of HDMI input ports, so the input mode of the TV must also be adjusted to HDMI 1 or HDMI2) Note: if the TV has no signal or the display is blurred after adopting the above method, it may be that the display mode of the computer does not match the TV. Click Display Properties-Settings-Adjust the display resolution to 1024X768 or 1366X768 to try. If the display is normal (clear), it means that the "Computer Display Mode" is not set well, and then gradually adjust the display resolution matching the computer and LCD. Just display the image on the TV.