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My experience in making new LCD displays

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Andrew Babanin

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My experience in making new LCD displays

Post02 Jan 2018, 22:03

First i would say thay i didn't make displays by myself, I found a company, making displays for different purposes in Minsk (Belarus)
It took approx 9 months.
For the first I found all technical data about necessary display. It is old type of displays with thick glasses, the only back contact (static not dinamic mode). There are 4 digits and dots. First digit has only 3 segments for 1 and 2. I had made quality pics of existing LCD's and then had drawn them in curves.

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Here there are ready drawings of both layers

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I started in april, to the end of may all data was at the factory. There were produced 4!!! different samples till the moment we've eliminated all mistakes.

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There were to many small mistakes, so new display didn't seem look like. On the pic blinking dots are still closer to each other.

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The last sample was perfect. So to the mid of october the production had started. And to the mid of december ready displays had come to me.

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I shaped ready LCD's, made angled cuttings for visual identity. Then replaced old displays with defects on new ones.

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We had to change construction of displays.
1. I had to change a bit thickness of glasses for better stability (thick second layer not good for temperature changes, becides gives too big shade of digits)
2. In old displays both layers are connected with small metal pieces, in new ones - special glue
3. Had to replace polaroid position on 45 degrees (too expensive to use old direction of liquid crystals).
4. Had to replace aluminium powder painting of lower polaroid film for mirrored film used nowdays, but will try to use silwer painting for more vintage view.
Anyway I'm happy with this result, ready for making new displays :)
The proof of the pudding is in the eating...
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dutchsiberia

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Re: My experience in making new LCD displays

Post04 Jan 2018, 14:21

Awesome work!
(I'll dig out my elektronika's again :) )
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simone

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Re: My experience in making new LCD displays

Post04 Jan 2018, 17:50

So cooooool!!!

:dwf:
Some watches are made to last only as long as they are fashionable
Some watches, simply are not made to last
Seiko watches are designed to withstand the ravages of both time and fashion
Someday perhaps, all watches will be made this way
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bucko170

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Re: My experience in making new LCD displays

Post04 Jan 2018, 22:56

Congratulations on a superb job :mega:
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Kasper

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Re: My experience in making new LCD displays

Post05 Jan 2018, 15:38

wow, impressive stuff. Congrats!
Hey you all...this board is FREE and without ADS, so at least post something every now and then to show your appreciation.


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Adam

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Re: My experience in making new LCD displays

Post05 Jan 2018, 21:16

Great attention to detail Andrew. Really 1st class. Can you save our Optels?

regards

Adam
http://www.digital-watch.com - online database of 2000+ watches, manuals and adverts from the 70s-90s
http://www.vintagelcd.com - Vintage Digital Watches for sale
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simone

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Re: My experience in making new LCD displays

Post06 Jan 2018, 00:04

And what about seiko electrochromic lcd?
Some watches are made to last only as long as they are fashionable
Some watches, simply are not made to last
Seiko watches are designed to withstand the ravages of both time and fashion
Someday perhaps, all watches will be made this way
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Andrew Babanin

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Re: My experience in making new LCD displays

Post06 Jan 2018, 23:20

Thank you so much. For sure I thought about DSM displays. It is possible to make. But i didn't think about Optels, only about Mikroma's. I posted here that first russian LCD proto watch of beginning 1974 looked like Mikroma DSM LCD but with 24 hour counting.
viewtopic.php?f=58&t=6207&start=44#p51258
viewtopic.php?f=58&t=7867#p52404
I've got two dead Micromas but do not know about chips - are they good for display restoration. Becides for me a problem to solder new displays to chip. I do not know what display is more popular.
As to Optels... For now I've got 3 timepieces - 1. EPSA with blinking digits 2. EPSA with blinking dots 3. BWC with blinking dots
All od them with good displays. I didn't see bad display for Optel.

Here there are the pics of my Optel display. Seems to me a bit more complicated than FE display.

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The proof of the pudding is in the eating...
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iwatchu

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Re: My experience in making new LCD displays

Post13 Jan 2018, 22:31

Wow, my deep and profound respect for your work, that must have cost you many hours to come to this result.
Would it be possible to manufacture other Lcds, for example with printing on it like the Seiko 0674?

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