Solidify
Two pieces of ITO film, liquid crystal, and polymer were solidified together by a machine.
Then we stick PE protective film on both sides. Thus we finish the non-adhesive Smart Film with PDLC technic.
It’s the primary material used to make Smart Privacy Glass.
Adhesive Smart Film PDLC
Solidify
It’s the same step with the Non-adhesive Smart Film.
Paste adhesive PET
Tear off one layer of PE protective film, and put adhesive PET on it.
We get adhesive Smart Film.
Cutting
We use an automatic cutting machine to get customized sizes.
The maximum length it can handle for one piece is 4.5 meters.
So if the length is over 4.5 meters, we need to cut by hand.
Add electrode
Cut the slot with a curved knife and clear the liquid crystal partly.
Use a silkscreen board to brush silver paste and dry it with a hair dryer.
Paste one copper foil on each side.
Note: In order to keep the self-adhesive surface flat, the positive and negative electrodes should be on the same side. So we add one piece of copper foil to bridge the electrode to another side. Just like this image.
Then Solder the wire.
How to choose a busbar location, single-width side or both-width sides?
If the length is more than 2.5 meters, please use both-width sides.
The length is less than 2.5 meters.
a. The width is bigger than 80mm, we recommend the single-width side.
b. The width is smaller than 80mm, please choose the both-width side.
But if you still use single-width, there will be a problem. The current cannot drive the whole area of the adhesive switchable film.
And this is suitable for both lamination switchable film and j smart glass.
Test
If it passes, we get the finished adhesive switchable film. This is the PDLC production technology.
Package
Normally, we roll the film with a paper tube.
Roll another layer of foam to prevent damage.
Then put it into the carton.
Additional note
Its price is cheaper than the automatic one.
And there is 2-meter and 3.5-meter version.
Safety knife
You can use it to cut the film by hand.
It consists of tempered glass, steel shelves, and led light.
Silkscreen board
It has three kinds of widths.
5mm is the most useful one.
And 4mm is for sample or special shape film.
10mm is a good choice if the client asks for a bigger connection area.
Oxford rubber block
It can make the silver paste spread evenly, and the yield rate is high.
It can produce electrode wire quickly.
Soldering aid rosin
Prevent the electrode wire from falling off.
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