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.
Laptop parts | Repair Man | 
December 26, 2008 3:18 pm
156 Responses to “LCD screen cable”
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April 23rd, 2010 at 12:48 pm
I forgot to mention that I tried to disconnect video cable from the screen = no change at all – only white backlight…
April 23rd, 2010 at 12:46 pm
Hi,
yes I reconnected video cable from the motherboard but without success. What is certainly strange is that my brother could see picture, but now I can’t see any…
April 23rd, 2010 at 12:41 pm
Daniel,
Yes, it’s possible but not a common failure. I’ve seen failure like that a few times.
By the way, have you tried reconnecting the LCD cable on the motherboard. Maybe the cable got disconnected slightly when you dropped the laptop. Just a guess.
April 23rd, 2010 at 12:14 pm
Hi,
thank you for your answers.
“Can you test the laptop with the old cracked screen” – I can see only white background, no picture. It is my brothers laptop and he just said that immediately after he cracked screen, he could see picture on some parts of the screen (which wasn’t cracked). However now I can’t see any picture at all, just white backlight.
So old screen and new screen behave same – white backlight only…
I heard that even external monitor works it could be still something cracked on the motherboard…is it right?
April 23rd, 2010 at 7:51 am
Dan,
Did you see any image on the undamaged part of the screen.
The description sounds like you damaged just the screen but the laptop itself should be OK.
Looks like the laptop is not getting data signal from the motherboard.
1. Make sure the LCD cable is plugged correctly into the new screen.
2. Did you purchase a compatible screen? Maybe your new screen is not compatible with the laptop OR requires a different LCD cable? Double check the LCD screen compatibility.
3. Can you test the laptop with the old cracked screen (I assume you still can get image on the undamaged part). If you can see image on the old screen but not on the new one, the new screen is either defective or not compatible.
If the laptop works fine with the external monitor, most likely there is nothing wrong with the motherboard. I still think it’s just a bad screen.
April 22nd, 2010 at 10:12 am
Hello,
I found your website (BTW excellent read) because I have problem with my laptop screen. I dropped the laptop and broke the screen (large black area in the middle) – when on there is white light and black broken area. I connected it to the external monitor and it works fine. I just bought new screen but it doesn’t work, there is only white light. I tried to reconnect VGA cable a few times but without any change. I removed VGA cable and turn on laptop, only white light as before. I assume there is either VGA cable faulty or any chip on motherboard? If motherboard why I it works on external monitor?
Your help is very appreciated!
Thank you,
Daniel
April 15th, 2010 at 8:47 am
Alan,
I’m not sure if this is a video card problem because you said the external monitor works fine. Are you sure the external video works properly? Take a closer look at the external video again, maybe it has some lines or other problems?
If the external monitor works fine but there is no image on the laptop screen, it’s possible that you have a failed LCD cable or LCD screen problem. It’s hard to tell without seeing the laptop. Try reconnecting the LCD cable on both ends, on the motherboard and LCD screen.
April 12th, 2010 at 7:02 pm
Hi, I have a problem with my Acer laptop and hoping to figure out what’s wrong with it.
It turns on and screen lights up but no image is displayed. I can connect an external monitor and get an image (but still no image on the laptop itself) but I see that the startup screen with the manufacturer’s logo has lines running through it similar to the images here http://www.laptopparts101.com/graphics-card-video-board/
Would this be a video card problem or LCD problem?
Thanks in advance
April 12th, 2010 at 8:38 am
jediknight111,
It’s possible the LCD cable is not making good contact with the motherboard or LCD screen. Reconnecting the LCD cable on both ends might fix the problem.
April 5th, 2010 at 4:55 pm
HP laptop laptop used to flicker when moved up and down , opened up the laptop and pinched the LCD cable and came pack on
Do I need a LCD cable then, and where is the best website to buy parts in the UK
Reply as soon as possible please, I need your heeeeelp!!
P.S Great vebsite helps a lot
March 31st, 2010 at 9:11 am
Eric,
First of all, this problem is not related to the inverter board, that’s for sure. The backlight lamp lights up and that means the inverter works properly.
1. Check connection between the LCD cable and new LCD screen. Maybe the cable is not plugged correctly.
2. Try reconnecting the LCD cable on the motherboard. Maybe the connection is loose.
3. If reconnecting the cable doesn’t help and the new LCD screen is a known good one, most likely this is motherboard failure.
March 30th, 2010 at 3:23 pm
hi
i have a c700 and the screen is completely lit up white. i bought a new lcd thinking this was the problem being that when hooked up to an external monitor it is fine. this new lcd screen still has the same problem. so i bought a new inverter and still white screen what else can it be. i am going nuts over this. thanks in advance
March 29th, 2010 at 11:08 am
Barbara,
1. Make sure the new LCD cable is connected properly. Try reconnecting the cable on the motherboard and LCD screen.
2. It’s possible that the LCD screen or motherboard was damaged when the LCD cable shorted.
March 24th, 2010 at 11:27 am
Hello,
I have a problem with my laptop, the wire hairs of my LCD CABLE came together, causing a short circuit, turn off my laptop and I bought a new LCD cable… I connect it on the motherboard but when the laptop started, the entire screen is blank. An external monitor works fine.
Do you know what can be?
Please help me!
thanks!!!
Bárbara from Concepción Chile
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.
November 26th, 2009 at 2:11 pm
Bob,
I really doubt that you can use the laptop screen as an external monitor.
November 24th, 2009 at 6:39 pm
I have a laptop screen from a laptop that was scrapped for parts. Is there any type of converter cable that could be used to attach the ribbon cable from the monitor to some other video signal like hooking it up to a VGA or DVI cable?
I was thinking of mounting it on the side of an XBOX 360 or PC tower.
November 18th, 2009 at 6:24 am
Hi Repair Guy,
Yes, once I open the lid, it will clear up after about 10 – 15 minutes. It only happens if the lid was closed.
Thanks so much for your thoughts. I was hoping it was the cable, it seemed like it might be loose, pinched or possibly deteriorating. It didn’t seem like a screen issue to me, but I’ve no experience with that.
I’ll try your suggestion and will report back. Crossing my fingers. =) Thanks so much!
November 18th, 2009 at 12:04 am
Nora,
Does it mean that after a while the screen starts working properly?
Maybe the video cable is not making good connection with the motherboard. Try reseating the video cable connector on the motherboard, it’s under the keyboard cover, close to the left hinge.
November 16th, 2009 at 6:12 pm
Hi there Repair Guy! This really is a great site, I’ve learned a lot here. Read the whole thread and my symptoms aren’t quite the same as those listed here, but have a gut feeling it’s a bad cable, and was hoping to ask your opinion? I know you can’t say for certain without actually looking at the machine, but a best guess is all I’m looking for.
I recently repaired my left hinge, replacing them both, and have done everything I can do short of actually opening the case. This is my only home computer and it works, for now. Somehow it doesn’t seem like pulling it apart too often would be good for it and I can’t afford a new display bezel again at the moment. So, I’m hoping to not have to open it before I do so to fix it, if at all possible.
I’ve read everything I can find on symptoms of screen and cable failure respectively and tried any troubleshooting techniques I can think of. I’ll be as specific as possible:
HP dv9000 series
Symptoms do not translate through the VGA adapter to stand-alone monitor, so is not mobo/video chip.
Happens only after closing the lid and upon re-opening, every time, whether from Hibernate or Start Up.
When closing lid to Hibernate, upon re-opening the background is my wallpaper, not the Login screen.
Walking across the floor with it open makes a flash of same symptoms run across the screen
Closing the monitor partway does not make symptoms reappear, but opening it causes a jittery screen once lid reaches 90 degrees.
On start up, begins from the BIOS Post and takes about 15 minutes to clear.
Again, none of this happens when conditions are replicated on Laptop while viewing from the VGA port on separate monitor, and don’t happen unless the lid is closed
Symptoms:
Screen image squashed to the right 3/4s of the display, with horizontal streaks like scan lines, offset a few pixels from the main squashed image. No funky colors, the horizontal streaks are black and white and shift like static or snow, sometimes freezing for a second. I ran a scanner and they shifted faster.
When rebooting, the black of the screen seems to continually brighten until it’s a light grey, until the Login screen comes up.
When the image clears up, everything is normal. Lightly jiggling or torquing the screen does not make it happen.
Money is an issue here, so while I’d love to buy both a screen and a cable, I can’t afford that. Frankly I’d be happier buying just a cable, so I’m hoping that’s my problem. My gut feeling tells me it is, but I don’t have any experience with bad displays. In your experience, do you think I could get lucky and it’s just the display cable?
November 13th, 2009 at 8:23 am
hello ..y need the electronic diagran of this lcd cable for aspire ione ..input-output descripcion for ani one wire .tencks
October 17th, 2009 at 7:10 pm
Miguel,
If the these dots appear only on the laptop screen and not on the external monitor, it could be:
1. Bad video cable.
2. LCD failure.
For some reason I think that you have a faulty video cable. Try replacing the video cable first, if it doesn’t help, could be bad LCD screen.
I published some disassembly guides for Acer Aspire 5100 (and other models) at http://www.InsideMyLaptop.com
It’s a different model but still could be similar. Read through the guide and you’ll get the idea how to take it apart. Good luck!
October 14th, 2009 at 1:33 am
Hi I have an Acer Aspire 5634WLMi with 2 years. Got a problem on the monitor (15.4-inch LCD CrystalBite).
It slowly started a year ago (at that time still had warranty but underestimated the problem and now it expired). In all the black images(movies, photos) began to appear some green fluorescent dots that looks like they are living (in English I think is called flickering spots, jaggies?!) which then disappear and come back. I did not care at first because both appeared to disappear. Over time there have appeared more, followed by purple dots now. These purple dots are never in black image but sometimes they are the shadow of the black image. But in videos with very dark black only come green dots (always flickering). In all the other colors there is no problem, for example I am writing this in Word and the blue and white of this image is not green. It is however in my opinion a little blurry, I do not know. The letters are black (with a slight green Halo) but it seems that they aren’t standing still and shake a little. The most strange is that on the desktop there is a pattern of green dots on the bottom left and a purple on the upper corner that are often there but sometimes also move around. In fact there was not so long ago a time when I got a perfect image. I began to think that the laptop went to very warm, open a part, cleaned the fan and reduce the processor speed by changing the temperature of the device. After a while it disappeared. But this improvement lasted only 1 day. Then it began all over again. I have also tried to connect the computer to another monitor and had a perfect image, so it seems that it is not the graphics. On the Internet I found many of these reports that the cable that goes from the graphicscard to the monitor is damaged and that a simple substitution leads to full restoration of the notebook. Anyway before attempting to open the laptop (I’ve been watching some videos of how to do) like to have another opinion from someone who realizes this. I already took him ah repair but wanted 250 euro to replace the monitor with dead pixels (which I think is wrong they are not all dead, and until very squiggly and alternate location). For 250euros rather buy a new though economically not good for me. When the computer has a completely black image is all green. For example when the screensaver comes with the ball moving from one place to another.
Do you think it’s the cable or the lcd?And how can i test it?because opening the laptop seems to be pretty difficult,can I try to do something with the monitor cable just getting the lcd of?What would you do?
Thank you very much!
October 13th, 2009 at 7:55 pm
Don,
The connector is broken on the LCD? I doubt that you can find this connector.