r0k3t
Posts: 1
Joined: Thu Jan 21, 2016 6:18 am

LVDS driver board question

Thu Jan 21, 2016 6:32 am

I am working on building a pi top for myself however I am having a little trouble understanding the board I purchased for use with the display. I have the datasheet on the display however I can't seem to figure out why my board has E0,E1,E2,E3 and then 00,01,02,03 - the data sheet shows RxIN0,RxIN1etc. My idea is to simply use cram it into an old laptop case with a nice flat 12" hdmi cable that I have coming from the pi into the LVDS controller board to power the monitor.

Can someone tell me what whey there are seemingly two sets of input/output on for the cable connection on the board and just one set on the datasheet? Here is a link to the datasheet http://www.datasheetspdf.com/PDF/QD15XL13/910474/1

I can't find the exact board I have but it is very similar to this http://www.ebay.com/itm/M-NT68676-2A-HD ... 1320408901

Thanks.

User avatar
saper_2
Posts: 232
Joined: Sun Aug 03, 2014 10:08 am
Location: PL

Re: LVDS driver board question

Thu Feb 11, 2016 9:39 pm

Don't thanks. Just google.
Anyway, I got a little interested in this and found this page: https://sites.google.com/site/lcd4hobby/lvds-cables Practically you have described there signals for most LVDS boards and their LCD names :) .
In meantime I also stumbled https://hackaday.io/project/4177-lvds-l ... nterfacing - this just got my interest because of that self-made board :) .

ceteras
Posts: 231
Joined: Fri Jan 27, 2012 1:42 pm
Location: Romania

Re: LVDS driver board question

Mon Feb 15, 2016 4:29 pm

r0k3t wrote: my board has E0,E1,E2,E3 and then 00,01,02,03 - the data sheet shows RxIN0,RxIN1etc.
Your board has E0,E1,E2,E3 and then O0,O1,O2,O3, that is Even and Odd.
These are two sets of signal outputs used to transfer two pixels at once, for certain displays.

Your display has a single set of inputs, RxIN0 to RxIN3, I think you should connect them to the E side of your board.
It is very unfortunate that you know so little about the board itself. I met ebay vendors that would not sell a board unless I'd tell them the display model number, so they make sure the board would be configured to work with it.

The LCD displays are not plug and play so the boards do not just work with them.
You could be lucky to have your board configured to work with your display, of course.
Make sure the board provides 3.3V as power to the display and try to connect the lvds signals to E0-E3. It will not usually cause damages, I've had such setups before.

You could post some pictures of your setup before powering it up, so we can check things out.

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