search

dgouramanis / OPTOCAPE

Opto Isolated signal buffer cape for BeagleBone Black
Other
8 stars 4 forks source link

Lvds connector #3

Open 20after4 opened 6 years ago

20after4 commented 6 years ago

How would I convert the 14 pin optocape lvds connector to match the connector on a laptop screen? All of the screen's I've looked at have a high density connector. I found a bunch of cables on ebay but most of them are more than 14 pins.

dgouramanis commented 6 years ago

I'm not an expert on LCDs. My setup uses a Sharp LQxxx TFT LCD salvaged from a old Toshiba Satellite. The screen has a 20 pin LVDS connector. Here is how it's wired up. It works beautifully.

As far as I know LVDS video is standardized for many laptop LCD flat panel displays. The SN75LVDS83B is used on many laptop motherboards for video serilization.

To make a cable you will need a 7x2 position, 2mm pitch male header. The LCD also needs a backlight. Pin 8.11 needs to be HI to enable video. That's it for hardware. Then it's a matter of configuring firmware to output video signal. Example here.

If you get a screen working please post details about pinout & dts file. Hopefully we can build a knowledge base. There are so many big, beautiful screens being trashed these days. Older laptops have the best screens for hacking.