• Question about LCD contact strips

    From Jan Panteltje@21:1/5 to All on Tue Aug 2 13:07:58 2022
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Arie de Muijnck@21:1/5 to Jan Panteltje on Tue Aug 2 15:27:42 2022
    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Ricky@21:1/5 to Jan Panteltje on Tue Aug 2 06:27:52 2022
    On Tuesday, August 2, 2022 at 9:08:28 AM UTC-4, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front

    I believe they are Zebra strips, but that seems to be a trademark. Generically they are "Elastomeric connectors".


    --

    Rick C.

    - Get 1,000 miles of free Supercharging
    - Tesla referral code - https://ts.la/richard11209

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to eternal.september@ademu.com on Tue Aug 2 06:37:02 2022
    On Tue, 2 Aug 2022 15:27:42 +0200, Arie de Muijnck <eternal.september@ademu.com> wrote:

    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie

    There are also some featureless elastomer things that have vertically
    aligned slivers of conductive metal.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Ricky@21:1/5 to jla...@highlandsniptechnology.com on Tue Aug 2 09:35:32 2022
    On Tuesday, August 2, 2022 at 9:37:13 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Tue, 2 Aug 2022 15:27:42 +0200, Arie de Muijnck
    <eternal....@ademu.com> wrote:

    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie
    There are also some featureless elastomer things that have vertically
    aligned slivers of conductive metal.

    That's what everyone is talking about, Zebra strips. Obviously, you didn't use the link.


    --

    Rick C.

    + Get 1,000 miles of free Supercharging
    + Tesla referral code - https://ts.la/richard11209

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Arie de Muijnck@21:1/5 to Ricky on Tue Aug 2 18:57:58 2022
    On 2022-08-02 18:35, Ricky wrote:
    On Tuesday, August 2, 2022 at 9:37:13 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Tue, 2 Aug 2022 15:27:42 +0200, Arie de Muijnck
    <eternal....@ademu.com> wrote:

    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie
    There are also some featureless elastomer things that have vertically
    aligned slivers of conductive metal.

    That's what everyone is talking about, Zebra strips. Obviously, you didn't use the link.


    The zebra strips have (black) conductive and (non-black) non-conductive stripes hence the name.
    That differs from the silver-needle packed rubber that Larkin mentioned (he wrote 'also').
    I know that as expensive but good EMC shielding stuff. Featureless, unless under a microscope.

    A.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jan Panteltje@21:1/5 to eternal.september@ademu.com on Tue Aug 2 17:03:12 2022
    On a sunny day (Tue, 2 Aug 2022 15:27:42 +0200) it happened Arie de Muijnck <eternal.september@ademu.com> wrote in <77b4657f-bb23-ded8-2590-99e631893ebf@ademu.com>:

    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie

    Thank you!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jan Panteltje@21:1/5 to gnuarm.deletethisbit@gmail.com on Tue Aug 2 17:03:12 2022
    On a sunny day (Tue, 2 Aug 2022 06:27:52 -0700 (PDT)) it happened Ricky <gnuarm.deletethisbit@gmail.com> wrote in <3771f6a0-8ef7-4508-be2f-c1dc0a55d4d3n@googlegroups.com>:

    On Tuesday, August 2, 2022 at 9:08:28 AM UTC-4, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front

    I believe they are Zebra strips, but that seems to be a trademark. Generically they are "Elastomeric connectors".

    OK, thanks, after googling for 'elastomeric connectors'
    I found some site that makes those
    https://www.adkom.de/en/about-displays/display-kontaktierung/rubber-connectors.html

    Its funny, I can get the LCDs 5 for 8 USD on ebay from China,
    but not those connectors...
    Now I will search ebay for it
    hey found 'zebra strips' mm. more expensive than the LCDs!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Larkin@21:1/5 to eternal.september@ademu.com on Tue Aug 2 12:03:19 2022
    On Tue, 2 Aug 2022 18:57:58 +0200, Arie de Muijnck <eternal.september@ademu.com> wrote:

    On 2022-08-02 18:35, Ricky wrote:
    On Tuesday, August 2, 2022 at 9:37:13 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Tue, 2 Aug 2022 15:27:42 +0200, Arie de Muijnck
    <eternal....@ademu.com> wrote:

    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie
    There are also some featureless elastomer things that have vertically
    aligned slivers of conductive metal.

    That's what everyone is talking about, Zebra strips. Obviously, you didn't use the link.


    The zebra strips have (black) conductive and (non-black) non-conductive stripes hence the name.
    That differs from the silver-needle packed rubber that Larkin mentioned (he wrote 'also').
    I know that as expensive but good EMC shielding stuff. Featureless, unless under a microscope.

    A.

    Right. I never considered a zebra to be featureless.

    The zebra conductive elastomer strips (plainly visible) are not very
    good electrical conductors, but plenty good enough to connect an LCD.
    The vertical sliver things are hard metallic conduction paths.

    Ricky "Obviously" wants to argue and insult but doesn't want to think.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Ricky@21:1/5 to John Larkin on Tue Aug 2 12:15:42 2022
    On Tuesday, August 2, 2022 at 3:03:31 PM UTC-4, John Larkin wrote:
    On Tue, 2 Aug 2022 18:57:58 +0200, Arie de Muijnck
    <eternal....@ademu.com> wrote:

    On 2022-08-02 18:35, Ricky wrote:
    On Tuesday, August 2, 2022 at 9:37:13 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Tue, 2 Aug 2022 15:27:42 +0200, Arie de Muijnck
    <eternal....@ademu.com> wrote:

    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie
    There are also some featureless elastomer things that have vertically >>> aligned slivers of conductive metal.

    That's what everyone is talking about, Zebra strips. Obviously, you didn't use the link.


    The zebra strips have (black) conductive and (non-black) non-conductive stripes hence the name.
    That differs from the silver-needle packed rubber that Larkin mentioned (he wrote 'also').
    I know that as expensive but good EMC shielding stuff. Featureless, unless under a microscope.

    A.
    Right. I never considered a zebra to be featureless.

    The zebra conductive elastomer strips (plainly visible) are not very
    good electrical conductors, but plenty good enough to connect an LCD.
    The vertical sliver things are hard metallic conduction paths.

    Ricky "Obviously" wants to argue and insult but doesn't want to think.

    Wow! Some people are very sensitive.

    A zebra strip has visible bars, which are significantly more narrow than the pads and gaps on the PCBs being connected. So you don't need to worry about shorting between pads. I had not heard of these other strips before. I have learned something
    today.


    --

    Rick C.

    -- Get 1,000 miles of free Supercharging
    -- Tesla referral code - https://ts.la/richard11209

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From whit3rd@21:1/5 to Jan Panteltje on Tue Aug 2 12:49:42 2022
    On Tuesday, August 2, 2022 at 6:08:28 AM UTC-7, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front

    The 'conductive rubber' strands are side-by-side with insulating separators, end-on
    it looks like a dotted line.
    These are elastomeric electrical connectors, of couse, but they aren't the ONLY elastomeric
    connectors; I have seen cylindrical ones with many circular bands of conducting material.

    Good luck looking for replacement; the length, breadth, and pitch of the conductors are
    all variables that you'd want to match. Conduction-dimension length, particularly, is critical;
    one cannot trim that with scissors and get good results. Thickness, to fit the channel, could
    perhaps be allowed undersize, and fit in a bit of plastic shim alongside.

    Sometimes an isopropanol wipe and reseating is all a 'damaged' strip needs for repair.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Larkin@21:1/5 to jlarkin@highland_atwork_technology. on Tue Aug 2 13:04:52 2022
    On Tue, 02 Aug 2022 12:03:19 -0700, John Larkin <jlarkin@highland_atwork_technology.com> wrote:

    On Tue, 2 Aug 2022 18:57:58 +0200, Arie de Muijnck ><eternal.september@ademu.com> wrote:

    On 2022-08-02 18:35, Ricky wrote:
    On Tuesday, August 2, 2022 at 9:37:13 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Tue, 2 Aug 2022 15:27:42 +0200, Arie de Muijnck
    <eternal....@ademu.com> wrote:

    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie
    There are also some featureless elastomer things that have vertically
    aligned slivers of conductive metal.

    That's what everyone is talking about, Zebra strips. Obviously, you didn't use the link.


    The zebra strips have (black) conductive and (non-black) non-conductive stripes hence the name.
    That differs from the silver-needle packed rubber that Larkin mentioned (he wrote 'also').
    I know that as expensive but good EMC shielding stuff. Featureless, unless under a microscope.

    A.

    Right. I never considered a zebra to be featureless.

    The zebra conductive elastomer strips (plainly visible) are not very
    good electrical conductors, but plenty good enough to connect an LCD.
    The vertical sliver things are hard metallic conduction paths.


    Search for z-axis conductive tape

    It might replace a zebra without having to match pitch or pattern.
    Amazon has some.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Ricky@21:1/5 to John Larkin on Tue Aug 2 13:27:58 2022
    On Tuesday, August 2, 2022 at 4:05:04 PM UTC-4, John Larkin wrote:
    On Tue, 02 Aug 2022 12:03:19 -0700, John Larkin <jlarkin@highland_atwork_technology.com> wrote:

    On Tue, 2 Aug 2022 18:57:58 +0200, Arie de Muijnck
    <eternal....@ademu.com> wrote:

    On 2022-08-02 18:35, Ricky wrote:
    On Tuesday, August 2, 2022 at 9:37:13 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Tue, 2 Aug 2022 15:27:42 +0200, Arie de Muijnck
    <eternal....@ademu.com> wrote:

    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie
    There are also some featureless elastomer things that have vertically >>>> aligned slivers of conductive metal.

    That's what everyone is talking about, Zebra strips. Obviously, you didn't use the link.


    The zebra strips have (black) conductive and (non-black) non-conductive stripes hence the name.
    That differs from the silver-needle packed rubber that Larkin mentioned (he wrote 'also').
    I know that as expensive but good EMC shielding stuff. Featureless, unless under a microscope.

    A.

    Right. I never considered a zebra to be featureless.

    The zebra conductive elastomer strips (plainly visible) are not very
    good electrical conductors, but plenty good enough to connect an LCD.
    The vertical sliver things are hard metallic conduction paths.

    Search for z-axis conductive tape

    It might replace a zebra without having to match pitch or pattern.
    Amazon has some.

    Larkin doesn't read my posts, but he should understand that zebra strips have a much finer pitch of the conductive stripes, than the pads, so there is no need to match the stripe pitch to the pad pitch. There will always be multiple conductive stripes
    on a given pad and multiple insulating stripes between pads. These only work with single row pad arrays, but do not need to match the pads in terms of width. The height of the zebra is important and the length a bit less so as it only has to cover all
    the pads.

    --

    Rick C.

    -+ Get 1,000 miles of free Supercharging
    -+ Tesla referral code - https://ts.la/richard11209

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Phil Hobbs@21:1/5 to John Larkin on Tue Aug 2 17:24:16 2022
    John Larkin wrote:
    On Tue, 02 Aug 2022 12:03:19 -0700, John Larkin <jlarkin@highland_atwork_technology.com> wrote:

    On Tue, 2 Aug 2022 18:57:58 +0200, Arie de Muijnck
    <eternal.september@ademu.com> wrote:

    On 2022-08-02 18:35, Ricky wrote:
    On Tuesday, August 2, 2022 at 9:37:13 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Tue, 2 Aug 2022 15:27:42 +0200, Arie de Muijnck
    <eternal....@ademu.com> wrote:

    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie
    There are also some featureless elastomer things that have vertically >>>>> aligned slivers of conductive metal.

    That's what everyone is talking about, Zebra strips. Obviously, you didn't use the link.


    The zebra strips have (black) conductive and (non-black) non-conductive stripes hence the name.
    That differs from the silver-needle packed rubber that Larkin mentioned (he wrote 'also').
    I know that as expensive but good EMC shielding stuff. Featureless, unless under a microscope.

    A.

    Right. I never considered a zebra to be featureless.

    The zebra conductive elastomer strips (plainly visible) are not very
    good electrical conductors, but plenty good enough to connect an LCD.
    The vertical sliver things are hard metallic conduction paths.


    Search for z-axis conductive tape

    It might replace a zebra without having to match pitch or pattern.
    Amazon has some.



    You don't have to match the pitch with Zebras--that's one of their main
    selling points. The board has to match the glass, is all.

    I used them in my Footprints sensors to connect to the metal (later
    carbon ink) pixels on the free-standing 9-um PVDF pyroelectric film.

    Cheers

    Phil Hobbs

    Cheers

    Phil Hobbs

    --
    Dr Philip C D Hobbs
    Principal Consultant
    ElectroOptical Innovations LLC / Hobbs ElectroOptics
    Optics, Electro-optics, Photonics, Analog Electronics
    Briarcliff Manor NY 10510

    http://electrooptical.net
    http://hobbs-eo.com

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Larkin@21:1/5 to pcdhSpamMeSenseless@electrooptical. on Tue Aug 2 14:56:00 2022
    On Tue, 2 Aug 2022 17:24:16 -0400, Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

    John Larkin wrote:
    On Tue, 02 Aug 2022 12:03:19 -0700, John Larkin
    <jlarkin@highland_atwork_technology.com> wrote:

    On Tue, 2 Aug 2022 18:57:58 +0200, Arie de Muijnck
    <eternal.september@ademu.com> wrote:

    On 2022-08-02 18:35, Ricky wrote:
    On Tuesday, August 2, 2022 at 9:37:13 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Tue, 2 Aug 2022 15:27:42 +0200, Arie de Muijnck
    <eternal....@ademu.com> wrote:

    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie
    There are also some featureless elastomer things that have vertically >>>>>> aligned slivers of conductive metal.

    That's what everyone is talking about, Zebra strips. Obviously, you didn't use the link.


    The zebra strips have (black) conductive and (non-black) non-conductive stripes hence the name.
    That differs from the silver-needle packed rubber that Larkin mentioned (he wrote 'also').
    I know that as expensive but good EMC shielding stuff. Featureless, unless under a microscope.

    A.

    Right. I never considered a zebra to be featureless.

    The zebra conductive elastomer strips (plainly visible) are not very
    good electrical conductors, but plenty good enough to connect an LCD.
    The vertical sliver things are hard metallic conduction paths.


    Search for z-axis conductive tape

    It might replace a zebra without having to match pitch or pattern.
    Amazon has some.



    You don't have to match the pitch with Zebras--that's one of their main >selling points. The board has to match the glass, is all.

    Surely a coarse pitch will short out or miss a close pad pattern. And
    getting them crossways or angled is bad.

    Fujipoly makes zebras at 100 to 500 contacts per inch.

    There are also Z-wrap connectors, an elastomer shape with wires
    wrapped around or inside as the conductors. They get down to numbers
    like 0.004" pitch.




    I used them in my Footprints sensors to connect to the metal (later
    carbon ink) pixels on the free-standing 9-um PVDF pyroelectric film.

    Cheers

    Phil Hobbs

    Cheers

    Phil Hobbs

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Phil Hobbs@21:1/5 to John Larkin on Tue Aug 2 18:19:55 2022
    John Larkin wrote:
    On Tue, 2 Aug 2022 17:24:16 -0400, Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

    John Larkin wrote:
    On Tue, 02 Aug 2022 12:03:19 -0700, John Larkin
    <jlarkin@highland_atwork_technology.com> wrote:

    On Tue, 2 Aug 2022 18:57:58 +0200, Arie de Muijnck
    <eternal.september@ademu.com> wrote:

    On 2022-08-02 18:35, Ricky wrote:
    On Tuesday, August 2, 2022 at 9:37:13 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Tue, 2 Aug 2022 15:27:42 +0200, Arie de Muijnck
    <eternal....@ademu.com> wrote:

    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie
    There are also some featureless elastomer things that have vertically >>>>>>> aligned slivers of conductive metal.

    That's what everyone is talking about, Zebra strips. Obviously, you didn't use the link.


    The zebra strips have (black) conductive and (non-black) non-conductive stripes hence the name.
    That differs from the silver-needle packed rubber that Larkin mentioned (he wrote 'also').
    I know that as expensive but good EMC shielding stuff. Featureless, unless under a microscope.

    A.

    Right. I never considered a zebra to be featureless.

    The zebra conductive elastomer strips (plainly visible) are not very
    good electrical conductors, but plenty good enough to connect an LCD.
    The vertical sliver things are hard metallic conduction paths.


    Search for z-axis conductive tape

    It might replace a zebra without having to match pitch or pattern.
    Amazon has some.



    You don't have to match the pitch with Zebras--that's one of their main
    selling points. The board has to match the glass, is all.

    Surely a coarse pitch will short out or miss a close pad pattern. And
    getting them crossways or angled is bad.

    Fujipoly makes zebras at 100 to 500 contacts per inch.

    There are also Z-wrap connectors, an elastomer shape with wires
    wrapped around or inside as the conductors. They get down to numbers
    like 0.004" pitch.

    We're talking about LCD contacts, which aren't super fine in general. I
    sure wouldn't use a Zebra when a misalignment of a few thousandths
    mattered. For coarser stuff, you just toss them in and you're done.

    Cheers

    Phil Hobbs


    --
    Dr Philip C D Hobbs
    Principal Consultant
    ElectroOptical Innovations LLC / Hobbs ElectroOptics
    Optics, Electro-optics, Photonics, Analog Electronics
    Briarcliff Manor NY 10510

    http://electrooptical.net
    http://hobbs-eo.com

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jasen Betts@21:1/5 to Arie de Muijnck on Wed Aug 3 07:44:06 2022
    On 2022-08-02, Arie de Muijnck <eternal.september@ademu.com> wrote:
    On 2022-08-02 18:35, Ricky wrote:
    On Tuesday, August 2, 2022 at 9:37:13 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Tue, 2 Aug 2022 15:27:42 +0200, Arie de Muijnck
    <eternal....@ademu.com> wrote:

    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie
    There are also some featureless elastomer things that have vertically
    aligned slivers of conductive metal.

    That's what everyone is talking about, Zebra strips. Obviously, you didn't use the link.


    The zebra strips have (black) conductive and (non-black) non-conductive stripes hence the name.
    That differs from the silver-needle packed rubber that Larkin mentioned (he wrote 'also').
    I know that as expensive but good EMC shielding stuff. Featureless, unless under a microscope.

    The cheap stuff is solid rubber wrapped in plastic with foil stripes

    --
    Jasen.

    --- SoupGate-Win32 v1.05
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  • From jlarkin@highlandsniptechnology.com@21:1/5 to usenet@revmaps.no-ip.org on Wed Aug 3 07:36:57 2022
    On Wed, 3 Aug 2022 07:44:06 -0000 (UTC), Jasen Betts
    <usenet@revmaps.no-ip.org> wrote:

    On 2022-08-02, Arie de Muijnck <eternal.september@ademu.com> wrote:
    On 2022-08-02 18:35, Ricky wrote:
    On Tuesday, August 2, 2022 at 9:37:13 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Tue, 2 Aug 2022 15:27:42 +0200, Arie de Muijnck
    <eternal....@ademu.com> wrote:

    On 2022-08-02 15:07, Jan Panteltje wrote:
    Question about LCD contact strips

    Does anybody know what thsoe strips that make edge contact with small LCDs are called?
    Looks like I have some defective one.
    ------------------PCB
    || || <- conductive rubber strip
    ||_____________ ||
    ================== LCD
    front


    Zebra strips.
    https://www.google.com/search?q=lcd+zebra+strips

    Arie
    There are also some featureless elastomer things that have vertically
    aligned slivers of conductive metal.

    That's what everyone is talking about, Zebra strips. Obviously, you didn't use the link.


    The zebra strips have (black) conductive and (non-black) non-conductive stripes hence the name.
    That differs from the silver-needle packed rubber that Larkin mentioned (he wrote 'also').
    I know that as expensive but good EMC shielding stuff. Featureless, unless under a microscope.

    The cheap stuff is solid rubber wrapped in plastic with foil stripes

    There are also epoxies with conductive fill particles. The right mix
    (or dilution) would be basically z-axis conductive.

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