Member Avatar for sc.farid

I have 2 broken note books.One is NEC varsa500 and the other is Toshiba Tecra8000.Both LCDs are useable.I want to use any of them as monitor of PC.Both the mother boards are damezed.Idon't know the wireing diagram of laptop lcd.Iam a technician working at component level.I am seeking help to perform the job from person who knows the technology in brief.If possible please send me details to perform the job.

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Short answer up front: it can be done, but the laptop LCD itself is only the panel — you need a matching controller/driver board plus the correct backlight supply and cables. and are pointing in the right direction; what follows fills in the practical steps and safety points that the thread hasn’t detailed.

Steps to proceed

  • Remove the panel carefully and read the sticker on the metal back plate. Record the full part number exactly (every letter/number). That part number is what you must search for to find the panel datasheet and pinout.
  • Determine backlight type: CCFL (has two thin HV wires / separate inverter) or LED (several small wires or single LED-driver connector). Do not assume one or the other.
  • From the part number/datasheet confirm the interface (LVDS, eDP or older TTL) and the FFC pin count/arrangement. Note connector side and cable orientation.
  • Buy a controller board that explicitly lists your panel P/N or supports the exact LVDS/eDP mapping and resolution. The controller should include (or be paired with) the correct inverter or LED driver board and the proper FFC cable and power supply.
  • Connect gently: insert FFC without stressing pins, connect backlight driver, power the controller with the specified adapter, then feed video (HDMI/VGA/DVI) to the controller.

Troubleshooting & cautions

  • If you get a dark image but the panel is lit white, the backlight may be fine but LVDS wiring/clock polarity is wrong — try another controller or verify pinout. Vertical/horizontal stripes usually indicate wrong mapping or voltage.
  • Inverter circuits produce dangerous high voltage; avoid probing them live. Use ESD precautions and avoid bending the panel glass.
  • Economics: a correct controller + cables can approach the price of a used desktop monitor. If time/cost are important, compare that before buying parts.

For a component-level tech this is a practical salvage job if you can identify the panel P/N and source a matching controller; otherwise buying a low-cost monitor often saves time.

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Member Avatar for Rik_

Laptop screens do not have controller boards built in like LCD screens have. They are built in to the motherboard of the laptop. You would need to buy a controller board for each screen as well as a power supply.

I have looked into this very thing myself and decided its far too expensive to do.

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