a strange lcd!

Discussion in 'Electronics Resources' started by new_mido22, Nov 6, 2011.

  1. new_mido22

    Thread Starter New Member

    Nov 6, 2011
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    This is an lcd took from an old device(pic is attached)
    I cannot find the datasheet of this lcd and I donot even know its number
    and it seems a little bit change since it has a lot of pins
    I counted the pins and found them nearly 75 or 76
    and I cannot find any thing like this on google

    and I am grateful for you help :)
     
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  2. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    Can you post the picture over here?


    Bertus
     
  3. praondevou

    AAC Fanatic!

    Jul 9, 2011
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    Is there anything printed on the back?

    What device did you take it from?
     
  4. new_mido22

    Thread Starter New Member

    Nov 6, 2011
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    Done
    Nothing is printed:confused:
    I took it from an organizer device
     
  5. BMorse

    Senior Member

    Sep 26, 2009
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    that type of LCD does not have the driver built in, so you will have to figure out how to drive the columns and rows to get it to work, normally those are "cheap" as they get and the whole controller is built into the "black" blob IC on one of the PCB's that was attached to it.....
     
  6. new_mido22

    Thread Starter New Member

    Nov 6, 2011
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    Allright
    All what you 've said is right and I truly found the blob IC attached to this lcd
    and of course I wil buy a new one.
    Thanks so much.
    I am grateful for you help .
     
  7. BMorse

    Senior Member

    Sep 26, 2009
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    No problem, anytime.

    Where are you located? This may help in recommending places to acquire LCD displays..... and what is your project that requires a display? Maybe I can help in selecting one that would be suitable for use?
     
  8. new_mido22

    Thread Starter New Member

    Nov 6, 2011
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    I would use it in a simple temperature and pressure (sensors) project
    and unfortunately I am not living in US.
     
  9. MrChips

    Moderator

    Oct 2, 2009
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    Hey. Count your lucky stars. There is nothing unfortunate about that!:)
     
  10. new_mido22

    Thread Starter New Member

    Nov 6, 2011
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    I mean that he will not be able to help me with the places ;)
     
  11. MrChips

    Moderator

    Oct 2, 2009
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    You never know. We have members all across the globe. If you let us know where you are someone there could help you.
     
    new_mido22 likes this.
  12. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    If you really want to see what it is... there is a way to buzz these things out. Just takes a square wave, a capacitor, two fine probes, and a lot of patients...

    Connect the square wave thru the cap to the two probes. Start on pin 1 with one probe, then probe every other pin till you see if do something. Keep going till the end. If you see nothing that's OK.

    Then from pin 2 test all the other pins... till you have then all. Note when you get to say pin 10 you do NOT have to retest 1-9, just the new combinations.

    Most pairs will show nothing, some pins will be common to many if not all of the segments.

    Don't even bother with this unless you already have a plan for a connector to that ribbon, and I sure hope it is single sides ribbon (but may well have different conductors on each side).

    Good luck.
     
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  13. MrChips

    Moderator

    Oct 2, 2009
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    they don't last long depending on how many kilovolts you apply to your patients.
     
    ErnieM and BMorse like this.
  14. BMorse

    Senior Member

    Sep 26, 2009
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    first thing that made me kind of chuckle today...;)
     
  15. BMorse

    Senior Member

    Sep 26, 2009
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    I do not think he is gonna have any luck soldering or attaching any kind of connector to that "cable" it is just a flat piece of plastic with "printed" conductors on it.....unless he uses some type of clinching connector to pinch the conductors with....
     
  16. new_mido22

    Thread Starter New Member

    Nov 6, 2011
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    Thanks really for your quote and for this method. I may have tried it if I had a square-wave source.
    Any way this LCD will not be used in any handmade projects;)
    Thank you all.
     
  17. debjit625

    Well-Known Member

    Apr 17, 2010
    790
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    Egypt I want to visit that place...
    Anyway about your project,use a character mode LCD/Dot matrix LCD they are cheap and will suit your project.

    Good Luck
     
  18. new_mido22

    Thread Starter New Member

    Nov 6, 2011
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    It's our pleasure :) .
    And Allah willing I will use this LCD.
    Thank you.
     
  19. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    You need lots of patients so they can help you hold all the probes... oh nevermind!
     
  20. MrChips

    Moderator

    Oct 2, 2009
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    Just got back from my 3rd MRI brain scan this year... they keep searching but can't find anything.:)
     
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