How generic are LCD logic boards?

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  • jsog
    Badcaps Veteran
    • Feb 2011
    • 220
    #1

    How generic are LCD logic boards?

    How standardized are logic boards and their interfaces to an LCD panel?

    The LCD panel connectors are probably standard. Is the firmware on a logic board capable of dealing with a few standard sizes of panel, or are they programmed for just one size?

    Can the MCU identify a panel's resolution electronically, or is it hard-coded?

    Do TN, PVA, and IPS panels have different interfaces due to their panel technology? Or is that internal to the panel and the MCU just sees a standard digital interface?

    Thanks!
    Tags: None
    • Scenic
      o.O
      • Sep 2007
      • 2642
      • Germany
      #2
      Re: How generic are LCD logic boards?

      i've swapped quite a few panels (19-22") around with no problems so far.
      if the panel's voltage and resolution match, there shouldn't be any issues.

      a 22" widescreen panel (1680x1050) out of a dead Samsung monitor (won't power on.. controller board issues) works perfectly fine with the innards of a 19" widescreen Acer with the same resolution.. it just won't fit in the case.. (i've tried that before after verifying the panel's supply voltage is the same)

      i don't know about the panel types though.
      i currently have a 19" 1280x1024 Belinea with a MVA/PVA panel and a 19" 1280x1024 LG with a crappy TN panel.. kinda makes me wanna try some panelswapping now

      as for the resolution.. i think it's hard-coded into the LCD controller boards firmware, but i don't really know for sure.

        Comment

        • pr0cess0r
          Senior Member
          • Jan 2011
          • 110
          #3
          Re: How generic are LCD logic boards?

          panel spec must be coded in the logic board there is a store on ebay that sell a logic board whit the inverter and they program it for the lcd panel you have you can even buy the programmer to reprogram it yourself. Most lcd use LVDS standard.

            Comment

            • jsog
              Badcaps Veteran
              • Feb 2011
              • 220
              #4
              Re: How generic are LCD logic boards?

              These are somewhat generic, panel resolution and voltage is set with jumpers: http://www.lcdparts.net/LCDC.aspx

                Comment

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