I recently pulled a 7" display from a portable DVD viewer (I don't know the correct term for those. It's a netbook-shaped thing, that can play DVDs and files off of SD cards), that I've found in the dumpster.
Now, I wasn't interested in the DVD player, but the display seemed interesting. I've powered up the device, and the display works fine, it displays a sort-of greeting screen with a "JAYtec" logo, and seems to wait for a DVD to be inserted.
So the display works fine, but I'd like to use it with other stuff. Before I can go on, I need to know what sort of interface it uses. There's a sticker on the back saying "CPT 7.0-LED9+R3" with a barcode on it. I was suspecting this is something like a part number or product designator, and googled for it. The closest thing I could find is this:
https://e2e.ti.com/cfs-file/__key/telligent-evolution-components-attachments/00-130-00-00-00-26-02-52/Chunghwa-Display-CLAA070LC0ECT.pdf the specification seems about correct, the backlight takes 9V, and 800×480px seems about right when it comes to resolution.
The datasheet suggests the display has a 30-pin LVDS connector, but this is where it doesn't match with my screen. My screen has just a 26-pin flatflex connector.
The connector reminded me of the DSI port on a Raspberry Pi, but that one has only 15 pins, about half as this display has.
So now, I'm a little at a loss. I don't know what sort of interface this display uses. I can power up the backlight, but I don't know even what sort of interface it has, so I can't even really begin to read on about how to interface with it. Since this is a free display, I'd love to make a DSI -> LVDS adapter for it, possibly get a VGA/DVI -> LVDS interface adapter.
I've attached a couple of pictures, showing the display and the markings.
I hope someone could steer me in the right direction, etc..
Cheers,
--polemon