Frameless Touch Smart Mirror

CedericPrivat · Jul 4, 2019, 11:39 AM

Hi everybody,

I want to build a framless multitouch smart mirror. Just like one of the Mues-Tec Smart Mirrors (https://www.mues-tec.de/English/smart_spiegel.html).

Because it should be framless, unfortunately an IR Frame is not an option.
I read about Touch foils, but most people said, that they don’t work through Two Way Mirrors, because of the metallic coating.

So my question is, how did Mues-Tec build a Framelss Touchscreen Smart Mirror and how can I build my own?

Edit: I just found the Tech Sheet (https://www.mues-tec.de/English/pdf/Smart Mirror SM-4300 Technical Datasheet - innovativTV by Mues-Tec.pdf). Maybe that helps.

broberg · Jul 4, 2019, 5:55 PM

You need a mirror with “built in” touchfoil.

supposedly it has to be layered between the different glass-layers and then tuned to disregard the mirror coating, but this is just a guess since I’m not sure how they’ve made it otherwise. Maybe a non metallic mirror coating?

Anyway, you can buy Two way mirror glass with touch from Displax :

https://forum.magicmirror.builders/post/57703

bhepler · Jul 4, 2019, 7:18 PM

I wonder if they’re using a capacitive touch screen. Similar to your smart phone. It might explain the 2,000+ euros price.

CedericPrivat · Jul 5, 2019, 5:06 AM

@broberg First of all, thanks for your response!

What do you mean by “between the different glass-layers”? Doesn’t a mirror just have one glass-layer?

Since the Displax Two-Way-Mirrors with Touch are for commercial use, they are probably going to be very expensive…

I had a look at the Tech Sheet again and it states that they are using a “G + G Touchscreen”. This is a type of Capacitive Touchscreen like @bhepler said.

But I still don’t understand, how they use a capacitive touchscreen through a mirror glas?

broberg · Jul 5, 2019, 5:18 AM

@CedericPrivat thats the thing if you fuse the mirrorcoating, the glass and the touch grid (capacative touch is basically really thin wires layed out in a grid). You could probably program the touch controller circuit to disregard any sensor noise created by the metallic mirror coating.

So basically, the touch grid is above the mirror, not under it. And probably seperated by a layer of glass.

CedericPrivat · Jul 5, 2019, 5:49 AM

@broberg That makes sense. The question is, where do I get such a screen (apart from suppliers for commercial use). It should be at least 32". Maybe Aliexpress or something similar?

Quick Update: I wrote an Email to Displax to maybe provide us with a price list, and if it is even available for private customers.

broberg · Jul 5, 2019, 5:57 AM

@CedericPrivat said in Frameless Touch Smart Mirror:

@broberg That makes sense. The question is, where do I get such a screen (apart from suppliers for commercial use). It should be at least 32". Maybe Aliexpress or something similar?

Quick Update: I wrote an Email to Displax to maybe provide us with a price list, and if it is even available for private customers.

Regardless where (and if you find other suppliers) it would cost you a lot of cash. Since it’s still a very niche product and therefore not produced in any great quantities.

Especially at the size of 32" (where only a regular two way mirror would set you back a great deal)

CedericPrivat · Jul 5, 2019, 7:35 AM

@broberg Yeah, I thought so. Nevertheless, still trying to figure out how much it will cost and if it is worth it for me.

So if anyone has another supplier or idea how to make such a mirror, feel free to PM me or just reply to this topic.

Thanks to anyone who answered so far! :)

CedericPrivat · Jul 5, 2019, 9:29 AM

To everybody, who is interested in the DISPLAX Touch Foils:

The Marketing Manager of DISPLAX replied on another Post:
https://forum.magicmirror.builders/topic/10575/capacitive-touch-mirror/3

WasupDude · Jul 12, 2019, 9:30 AM

Thanks for sharing