Through-hole or Zebra on an LCD?

Jan 09, 2007 1 Replies

Hello World,



A new project is taking shape. Not using through-hole mounting on the LCD would make routing the PCB easier. I have no experience with zebra strips.



What are the pros and cons of using a zebre strip for connecting to the LCD? There will need to be a backlight nder the LCD.



Thanks for your comments, Robert


The main consideration for zebra strip application is that you must capture the mating parts in a secure manner that compresses the zebra the correct amount .... but not too much. You also want to avoid flexure in the compressed zebra joint. Most common commercial LCD modules you see have a metal frame over the LCD glass that clamps it to the underlying PC board (with the zebra strip in between) in such a way that twist type fingers on the metal bracket pull the bracket tight down to the board with the correct mechanical recipe so as to easily achieve the correct zebra compression ratio in a production environment.

- mkaras

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