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1 thin horizontal line across Laptop lcd screen

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    1 thin horizontal line across Laptop lcd screen

    Hi I have a laptop lcd screen with 1 thin horizontal line across screen (red) is it possible to repair this or just replace the whole screen?.

    Input appreciated.

    #2
    Re: 1 thin horizontal line across Laptop lcd screen

    Well, I can think of a couple of reason for that behavior:
    - one pin of the ribbon cable went loose (cold solder joints), which are a pain to fix
    - a micro break in the LCD glass that cuts an entire line, or transistor inside the glass that activates the entire line, is dead -- can't be fixed
    - video card artifact - check if the external VGA output port shows the same line
    - the board that converts the analog video signal to digital is broken - diagnosed through elimination

    Basically, go to a service and ask them to test your laptop display on another board, and see if the problem persists.

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      #3
      Re: 1 thin horizontal line across Laptop lcd screen

      Probably driver chip on panel flex failed -- would need screen swapped.
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

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        #4
        Re: 1 thin horizontal line across Laptop lcd screen

        Originally posted by scobie_21 View Post
        Hi I have a laptop lcd screen with 1 thin horizontal line across screen (red) is it possible to repair this or just replace the whole screen?.

        Input appreciated.
        Panel problem. Usually replace the whole panel.

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          #5
          Re: 1 thin horizontal line across Laptop lcd screen

          Could be delamintation of the ribbon cable to the panel. Try gently squeezing around the edges where the line goes to and see if that affects it at all.

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