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Forum Information on the clear connection film to an LCD display
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  • lcd_connection
Related

Information on the clear connection film to an LCD display

jw0752
jw0752 over 5 years ago

I have recently been asked by a friend andriu011   how to improve the connection of the clear film ribbon between a glass LCD display and a circuit board. Frankly I do not even know the technical name of this type of connection cable. I have seen them and been frustrated by them when they have lost their connection. Usually pressure is applied to the back of the film against the glass to make the connection to the LCD circuits in the glass. If anyone knows what to call this technology so I can google it and learn more it would be appreciated. Also if you have any suggestions for cleaning the connections or improving them please tell me.

 

John

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  • andriu011
    andriu011 over 5 years ago +4 suggested
    Thank you John for putting this post up, also thank you everyone for any help and great recommendations, the display looses the segments of the numbers and within time all the segments go away, i have…
  • andriu011
    andriu011 over 5 years ago in reply to beacon_dave +4 suggested
    Yes, the end attached to the glass seem attached strongly, i am heating and press pressure to the end cable that is attached to PCB. Here is another picture with same remote but something black stuff added…
  • andriu011
    andriu011 over 5 years ago in reply to jw0752 +3 suggested
    Hi John, Here is the picture of the remote.
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  • andriu011
    0 andriu011 over 5 years ago

    Thank you John for putting this post up, also thank you everyone for any help and great recommendations, the display looses the segments of the numbers and within time all the segments go away, i have tried heating the ribbon cable with hair dryer image and pressed down to somehow glue the connections back, got lucky sometime and got some segments back but not completely. Wondering if there is something in the world that will replace, or any glue to apply or any ideas how to make this work. Thank you everyone. Have attached a picture to Dave and John conversation above.

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  • shabaz
    0 shabaz over 5 years ago in reply to andriu011

    If the flexible plastic comes off, then the special tape could be attempted. Otherwise, merely glueing it won't work I think, since there is nothing to apply pressure to each contact along the plastic. Maybe something can be retrofitted to apply pressure in the enclosure, but might need some custom surround created perhaps 3D printed, and screwed down maybe. It would be experimental though, and might not work. If the lead frame pins have solved the problem for good then replacing the entire LCD and the interface PCB could be easier than trying to maintain the older ones with the flexible plastic.

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  • shabaz
    0 shabaz over 5 years ago in reply to andriu011

    If the flexible plastic comes off, then the special tape could be attempted. Otherwise, merely glueing it won't work I think, since there is nothing to apply pressure to each contact along the plastic. Maybe something can be retrofitted to apply pressure in the enclosure, but might need some custom surround created perhaps 3D printed, and screwed down maybe. It would be experimental though, and might not work. If the lead frame pins have solved the problem for good then replacing the entire LCD and the interface PCB could be easier than trying to maintain the older ones with the flexible plastic.

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