Find Out Type and Model of LCD Panel in an iMac, MacBook, MacBook Pro, etc
You can find out what the manufacturer, model number, and type of LCD panel you have in any of your Macs, including the iMac, MacBook Air, MacBook, or any model MacBook Pro by using a fairly complex looking terminal command.
If you’re unfamiliar with the command line, just copy and paste the line below into the “Terminal” app in OS X, then hit the return key. Don’t worry if this looks confusing, it kind of is, but what is reported back is easily readable.
This is the exact command syntax you want to paste into a single line in the command line:
ioreg -lw0 | grep IODisplayEDID | sed "/[^<]*</s///" | xxd -p -r | strings -6
That command syntax text must be entered onto a single line, which is why copying and pasting is best.
After hitting return, you will see something similar to this reported back:
With the first line being the LCD panel model and the second line being the color profile you are using (same as set in your Display preferences). You can then find out what the manufacturer and specs of the display are by googling for the model number, for instance LTN154BT turns up this page indicating it is a Samsung 15″ display running at 1440×900 and capable of displaying a maximum of 262,000 colors.
This is particularly helpful information to know if your MacBook screen has been cracked and you want to do the installation yourself. Official repairs are often very expensive, but with a little patience and the right tools it can be done by anyone. You can typically pick up an LCD panel through Amazon or eBay for rather cheap and the installation takes about 30 minutes if you follow a guide.
It can also be handy to know if you’re just curious which particular panel or screen type is used in your Mac, since Apple often sources different panels from different manufacturers, but otherwise using them in the same Mac models.