LCD screen
A laptop screen also known as LCD screen displays an image generated by the laptop video card. The LCD screen receives data signal from the video card through the LCD cable.
Laptop screens come in many different sizes and resolutions. In order to find the LCD screen size (in inches), you’ll have to measure the screen between the two diagonal corners.
Older laptops had mostly full screen LCD displays. Newer laptops have mostly widescreen LCD displays.
A backlight lamp (also known as CCFL bulb) is the main source of light in any LCD screen. The backlight lamp powers up by the inverter board.
The laptop screen mounts inside the laptop display panel between the screen bezel and display cover. The screen is attached to the screen brackets (display brackets) which are permanently attached to the display hinges.
TYPICAL LCD SCREEN RELATED FAILURES
On the following images you’ll see some typical LCD screen related failures.
1. You can see image only on a part of the LCD screen. For example, only the top side of the screen works properly.
2. There is one or more thin multi color lines running down the screen.
3. There is a wide band running down the LCD screen. The
BUYING A NEW REPLACEMENT SCREEN
The LCD screen is one of the most expensive parts in a laptop computer. If your screen is damaged and you decide to replace it yourself, you’ll have to make sure to purchase a new screen compatible with your laptop. Hear are a few things to consider before buying a new screen:
1. Screen size.
2. Some laptops come with full size LCDs. Some laptops come with widescreen LCDs.
3. LCD screen could be matte or glossy.
4. Same size LCD screens may have different resolutions.
The best way to find a new replacement screen would be using the manufacturer’s part number or LCD screen model. Both could be found on the back side of the screen.
Laptop parts | Repair Man | 
December 26, 2008 3:12 pm
135 Responses to “LCD screen”
Pages: « 6 5 4 3 2 [1] Show All
Pages: « 6 5 4 3 2 [1] Show All
March 31st, 2009 at 7:54 pm
My laptop has a heap of short horizontal lines running down the screen. they look like shorter, horizontal versions of the ones in the pic of the verticle lines but they are horizontal.
March 17th, 2009 at 10:37 pm
DVD Mike,
I don’t sell any parts. I’m just trying to provide some information about laptop parts and maybe troubleshoot some laptop problems.
March 17th, 2009 at 12:58 pm
Hey all
These are really helpful money/time saving articles.Thanks
My question is this do you sell these listed parts,i dont see any price lists.
March 4th, 2009 at 10:21 pm
Steve Thomson,
Here’s my guess. Every screen has a controller board connected to the LCD via many very thin traces. Apparently when one of the traces not making good connection with the LCD, the problem occurs.
March 4th, 2009 at 9:58 pm
Can you tell me what causes screens to fail in the way depicted in example 3?
February 3rd, 2009 at 8:51 pm
We had a very thin line on LCD. My husband found instructions and replaced the LCD himself. Now the line is gone. It looked like one line on the fifth picture.
Lesley
January 31st, 2009 at 11:47 pm
[...] board, processor (CPU) and LCD screen are the most expensive parts in any laptop. In some cases, when one of these three parts fails, [...]
January 31st, 2009 at 10:22 am
[...] LCD screen mounts to the the screen mounting brackets which are permanently attached to the display hinges. [...]
January 23rd, 2009 at 1:52 pm
Robert,
Most likely you have a problem with the inverter board – a power supply for the LCD backlight lamp. I would definitely try replacing the inverter first. If it doesn’t help, apparently there is a problem with the backlight lamp which is located inside the LCD screen.
It’s very hard to replace the backlight lamp, so you’ll have to replace the whole LCD screen.
January 22nd, 2009 at 4:41 pm
Maybe you can help me to find the problem?
My screen works fine, it’s bright and there are no lines as you showed in you pictures whatsoever.
But after about 15-30 minutes it becomes very dark. The laptop still works but the image is so dark that I can barely see it. After reastart it happens agian. Works fine for some time and after that goes dark.
Can you tell if I have to buy a new screen? Can I try something else withour spending so much money?
I found a new screen but it’s almost $200.
Thanks.