Hello M:R Nation -
We have many inquiries per day on how to identify a cracked LCD screen. It might be harder than you think to identify, so let me shed some light. Now, different devices have different traits when it comes to how the screen cracks and what it looks like after said crack occurs.
Take for example the Samsung Galaxy S III. The GS3 will usually have a hairline fracture and in most cases, one crack completely wipes out the backlight and picture. The iPad Mini on the other hand will usually takes on a more classic broken LCD look with an ink blotch factor to it.
To show you some of the different traits, I have taken some quick images of some our more popular repairs with cracked LCD screens. You will very quickly be able to see the difference.
As you see on the iPad Mini, there is more of an ink blotch effect as we discussed above. Most iPads will have this same trait when the LCD screen is broken. They will usually continue to produce the back light as well. On the Amazon Kindle 3, you will notice a very different look. This particular Kindle has an “E-Ink” screen and when it’s cracked, it will stop working all together and whatever screen you were on last before it was cracked, it will remain on until it is replaced.
The iPod Touch 4 (and all iPhones for that matter) will usually show a flickering bright white screen when cracked. Notice in the picture how it also shows vertical and horizontal lines? Also, in a lot of instances, the digitizer will still function even thought the LCD is broken. This doesn’t mean we can only replace the LCD however. In the case of the iPod Touch 4 and most models of the iPhone, we have to replace the whole assembly.
Lastly, the Samsung Galaxy S III is unique with how it cracks. As you can see in the above image, it looks like the glass is cracked. This is not the case… the glass is just fine, but the extremely thin LCD underneath broken. When the LCD is damaged, the backlight will almost always go out and you will no longer be able to view the images on the screen. This, like the iPod touch and iPhones, has to be replaced as a whole unit. There is just no way around it.
If you have something other than what I have shown above, more than likely it will have some of the same traits. These 4 devices show you a wide range of the LCD screens that are used in devices today and if you match your screen up with one of these 4, I think you will have a very concrete answer on if your LCD is broken or not. If you are still unsure about it, send me a picture to firstname.lastname@example.org and I will gladly help you out!