The laptop screen model number is found at the back of the LCD panel itself. However, some laptop manufacturers provide an alternative way of finding what LCD is installed in their machine.

Every Dell laptop has a Dell Service Tag, or a Dell Express Service code at the bottom of the case, and using either the Service Tag, or the Express Service Code you can use the tool on Dell’s support page. The beauty of this feature is that Dell enables you to see all the components and peripherals of the laptop without having to tear it apart.

After you enter your Dell Service Tag or the Express Service Code, proceed to “System Configuration”, then to “Components”. You will then see a list of all components installed in this laptop; and the part number of the component will be provided. Usually, the LCD will be marked as “LIQUID CRYSTAL DISPLAY” (use CTRL+F to search the page if you are on a Windows PC, or Command+F on a Mac). Now that you have located the part on the page, you have two options:

1. Copy the part number, and search it on our website [recommended];


2. Copy the part number, and use a search term of your choice to look up the specifications of the part; then use the specifications to reference and locate the correct part on our website;

Resolutions are coded by the following parameters:

HD or HDF = Standart High Definition, WXGA 1366×768
HD+ = High Definition+, WXGA+ 1600×900
FHD = Full HD, 1920×1080


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  1. Teresa

    I would like to add the service tag number to my spreadsheet for my 450 Dell Chromebooks but cannot get my laser scanner to scan them without scanning the restore defaults under Barcode set up after each scan. Can you help me with this?


      I am not certain if this is the correct answer to your question, have you tried using blank paper and cutting out sections to cover the areas you do not want scanned?

  2. Mikewaver

    Another method is if the serial number is combined with the product number then use an equation to grab the serial number. For example only; “0123456789lrt0fn2” is the output from a scan. The serial number is “lrt0fn2”. Then use “=right(a1,7)” which should then output “lrt0fn2”.


      Thank you for the great suggestion Mikewaver.

  3. Barrie Thompson


    I bought a new small dell desktop computer about 18 months ago did not set it up until now whilst some of the functions are working I am unable to get it connected to the internet.

    I have also recently bought a new tablet which connected to the internet without any problems my mobile phone also connects to the internet without any problem, so it is not a problem with the internet

    The Dell device has an Express Service Code 11456169014.

    Can you advise please.

    Barrie Thompson


      Hello, Barrie

      For this we recommend contacting your Internet provider or Dell support for help with this issue.

  4. Paul

    Hi. I have been locked out of my Dell laptop. I tried to enter password,I keep getting a system disabled or service tag #. WHAT can I do to 10.

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