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Turning cracked laptop LED LCD into a wall lamp?

  • 09-06-2014 11:25pm
    #1
    nimrod86
    Registered Users Posts: 751 ✭✭✭


    So I have a cracked LED LCD panel from my old laptop, and I always thought it looked cool with all the cracks and lines and messed up colours.

    My question is, how would I go about lighting it up with a battery so I could mount it on a wall as a weird light? I've tried all the pins on the wire going from the control board on the back to the LED strip at the top but have had no luck... anyone have any ideas on how I can make it light up?

    It came from a Dell Studio 1558 and the LCD model is B156XW02.


Comments

  • #2
    backboiler
    Registered Users, Registered Users 2 Posts: 368 ✭✭backboiler


    Datasheet attached.

    If you've being connecting power between pins here and there - especially if the supply was in excess of 4 V - to pins, then there's a good chance you've fried the control electronics.

    You'll need a 12 V power supply with a rating of at least 3 W (so 250 mA) to drive the LEDs in the backlight. You'll need a 3.3 V supply (can be from a regulator fed from 12 V supply) to drive the control circuitry.
    You also need some circuitry to tie the V_LED and V_PWM pins high, and to generate the required patterns to turn on the LEDs and to convince the panel to display white (by default it'll be black, I assume).


  • #3
    nimrod86
    Registered Users Posts: 751 ✭✭✭nimrod86


    backboiler wrote: »
    Datasheet attached.

    If you've being connecting power between pins here and there - especially if the supply was in excess of 4 V - to pins, then there's a good chance you've fried the control electronics.

    You'll need a 12 V power supply with a rating of at least 3 W (so 250 mA) to drive the LEDs in the backlight. You'll need a 3.3 V supply (can be from a regulator fed from 12 V supply) to drive the control circuitry.
    You also need some circuitry to tie the V_LED and V_PWM pins high, and to generate the required patterns to turn on the LEDs and to convince the panel to display white (by default it'll be black, I assume).

    Wow! Cheers for that! Will have a read and hopefully give it a shot over the next few days! I have old PC power supplies up in the shed so should be able to use one of them for the 12v 3A power.


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