Author Topic: help identify lcd  (Read 834 times)

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Offline 1kostik1976Topic starter

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help identify lcd
« on: October 03, 2021, 04:49:55 am »
hello.
flir c2. thermal imager.
lcd crush.
can't find such a new one.
I hope someone can identify this LCD.
3.5"
 

Offline amyk

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Re: help identify lcd
« Reply #1 on: October 03, 2021, 07:18:43 am »
I think this is the company that made them: https://shtdo.en.alibaba.com/
But it's likely to be a custom part, maybe you could ask them for some info - rate of success is unlikely to be high, but it's worth a try.
 

Offline lunacyworks

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Re: help identify lcd
« Reply #2 on: October 24, 2021, 06:24:20 pm »
So you are looking for a  WxH capacitive (6pin) touch screen QVGA (50 Pin) LCD screen.   I believe if you search for the actual part you might find that will narrow your list down significantly.  Since the LCD doesn't seems to come with a controller, I would check the main board and see if you can determine what controller they use.  You might find it easier just to source a compatible unit instead of a direct replacement.
 

Online wraper

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Re: help identify lcd
« Reply #3 on: October 24, 2021, 06:33:21 pm »
Since the LCD doesn't seems to come with a controller, I would check the main board and see if you can determine what controller they use.  You might find it easier just to source a compatible unit instead of a direct replacement.
And how you determined that? TFT LCD without a controller? It's either COG of located further on a hidden part of FPC.
 

Offline lunacyworks

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Re: help identify lcd
« Reply #4 on: October 24, 2021, 06:39:55 pm »
I should clarify when I was speaking of a controller I wasn't referring to a COG or driver, but a controller that would interface with the driver.  Having a controller on the LCD would mean that it was a custom assembly and would make it even harder to find a replacement.

Looking at the FPC cable, U1 could be a controller yes, but that is more likely to be the touchscreen controller probably an FT6236ish type controller like this [https://www.buydisplay.com/3-5-inch-capacitive-touch-panel-wiith-controller-ft6236-for-320x480-dots].  I would assume there would the a LCD driver (such as He would have to trace the wires.  It's not uncommon for companies to use older connectors such as the 50 LCD connector typical of an 6800-series parallel interface or
8080-series high speed parallel interface verse using the same connected and repurpose the lines for  3-lines serial peripheral interface and 4-lines serial peripheral LCD screen.

I have used for example https://www.crystalfontz.com/ to get a replacement LCD working with some units where I didn't know what the actual OEM product was.

By comparing to say the interface table they supply you get a sense as to what the specs for this particular LCD might be.

https://www.crystalfontz.com/products/document/2236/CFAF320240F_Series_Interface_Table.pdf

So if were to map out the connector and give us a clear picture of U1 we might be able to narrow down the interface required and make it easier to source an equivalent replacement.
« Last Edit: October 24, 2021, 07:40:13 pm by lunacyworks »
 


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