LCD screen cable
A laptop LCD cable also known as video cable, display cable or screen cable. This cable transfers data signal from the motherboard and video card to the LCD screen. Also, most video cables supply high voltage DC power to the screen inverter.
On the picture you can see a typical laptop video cable. The cable has three ends with three connectors. One end plugs into the connector on the back of the LCD screen, the second end plugs into the inverter board, the third end plugs into the connector on the motherboard or video card.
The top part of the cable runs inside the laptop display panel between the LCD screen and display cover.
The bottom part of the cable could be found either under the keyboard or keyboard bezel.
In order to remove and replace the LCD cable, it will be necessary to disassemble the whole laptop.
LCD CABLE RELATED PROBLEMS
1. The image on the screen appears normal until you move the display up or down. When you move the display, the images on the entire screen starts to flicker, disappear or change collors. As soon as you stop moving the display, the image gets back to normal.
2. The LCD screen lights up but there is no image at all. The entire screen is blank. An external monitor connected to the laptop VGA port works fine, there is no problems with the external video output at all.
3. Image on the entire LCD screen is garbled. An external monitor works fine.
In many cases the video cable failures are very similar to the LCD screen failures.
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January 20th, 2010 at 2:56 pm
hmm… that would seem to be an issue related to the turning off/on itself. you mentioned the resolution is to turn computer off ‘completely’… but you said that this occurs when the laptop has sat turned off overnight. i’m gonna assume that that means it was siting in standby or hibernate.
anyhoo… it’s probably something related to the standby or hibernation settings on your computer. maybe something in the bios… perhaps a bios update is needed.
December 3rd, 2009 at 1:58 pm
Hello. I have an Acer Aspire 5100 and am having a strange problem with the LCD screen. Symptoms are as follows:
- Usually after the laptop has sat turned off for some time such as overnight, upon powering up the laptop the screen does not turn on. The computer boots up normally and video output comes through the external monitor connection but the LCD screen will not operate.
- Resolution seems to be to turn off the computer completely (going into and out of standby does not work) and tap lightly around the bottom of the LCD bezel and back of the laptop, as well as rapidly pressing the LCD switch (this may be superstitious habit). Sometimes shut down/tap/restart procedure needs to be repeated a few times to get the screen to engage.
- Cannot seem to get the problem to repeat once the screen has come on in one session. Only happens again after the laptop has sat turned off for some time.
- Screen has never turned off while laptop in use.
Great site, thanks in advance.