Can a membrane switch have an EL backlight?

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weissnat.evert
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Joined: Thu Dec 03, 2020 2:56 pm

Can a membrane switch have an EL backlight?

Post by weissnat.evert » Thu Dec 03, 2020 3:47 pm

Can a membrane switch have an EL backlight?

muller.alexandr
Posts: 2
Joined: Thu Dec 03, 2020 2:56 pm

Re: Can a membrane switch have an EL backlight?

Post by muller.alexandr » Thu Dec 03, 2020 4:16 pm

Yes, but why?



EL (Electroluminescence) <https://en.wikipedia.org/wiki/Electroluminescence> is thin and provides even light flow, but . . . it requires an AC circuit which generates noise and it has a short half-life of around 3K hours. (Half life is when the EL’s brightness is half of what it is when first turned on.)



We recommend a LED which operates on DC and has a half-life of 70K hours. If there is not much room for the backlight, fiber optic or a light pipe can be used.

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