I had this LCD lying around from an old security system and I was wondering if there was any way to use this. It has no solder points or pins or anything, but has 15 transparent bars on the top left of the glass, and in the top right says 3090 R1, but I couldn't find anything about it... It also has this little white backplate thing, with K5213-1 on a barcode on the back.
Sorry for the poor information, I haven't really dealt with LCDs or Arduinos before either, but I had this lying around, so I was wondering if maybe I could pick up an Arduino and mess around with it. I do have experience with sensors and stuff on a Raspberry Pi and with FIRST Robotics though.
Is there any way a display like this could be driven?
EDIT: The little pink and black thing used to be attached, but I guess it fell off sometime between when I took the LCD out and now... It's a rubbery strip, with what I'm guessing is tiny copper strips inside from the bottom to the top? I'm guessing it used to be touching contacts on the circuit board of the security system, which conducted through those tiny strips up into the little transparent pad things on the display?
Here are some images I took, sorry for the poor quality, my phone camera didn't want to focus...
Oh, well that pink strip there is an elastomeric connector. I just wasn't sure what it was called. Can it not be reattached or something? I'm not entirely sure how they work, but it doesn't line up with the contacts anyways, so can I not simply apply pressure to it with it close enough?
The wikipedia link explains it clearly.
A zebra strip consists of alternating conducting and insulating rubber (matrix).
The conductive (black) parts of the zebra strip connect the LCD to bare contact fields on a circuit board.
A bit of pressure is needed, so LCD/zebra/board are usually pressed together in a case/besel.
Why this LCD. 162 or 164 LCDs are cheap as chips on ebay.
Leo..
Wawa:
The wikipedia link explains it clearly.
A zebra strip consists of alternating conducting and insulating rubber (matrix).
The conductive (black) parts of the zebra strip connect the LCD to bare contact fields on a circuit board.
A bit of pressure is needed, so LCD/zebra/board are usually pressed together in a case/besel.
Why this LCD. 162 or 164 LCDs are cheap as chips on ebay.
Leo..
Hm okay. Sorry, I didn't see anything about the pressure or anything, but it does make sense. I guess it was probably originally pressed together tightly enough that it just stuck to the glass.
I realize they're cheap, but I'd rather not buy one if I already have one lying around. I don't have a lot of money to spend to begin with.
So if I wanted, I could probably do it, but it'd just be far more inconvenient than just using an LCD with proper contacts on it?
If.. you have the matching board (same contact spacing) with the driver chip for that LCD, and you can solder wires to it, and you can apply the right contact pressure, then yes maybe.
Leo..
Wawa:
If.. you have the matching board (same contact spacing) with the driver chip for that LCD, and you can solder wires to it, and you can apply the right contact pressure, then yes maybe.
Leo..
Ah I see, I have no clue where that went to. Well, guess I'll just have to throw it out and get a new one or something. Thanks for your help!
Maybe you find that interesting EEVblog #1045 - How To Drive an LCD.
(How to drive a static LCD display with digital logic and an Arduino / microcontroller.)
