Instructables

Help wiring a laptop's LCD display?


Greetings all!

I had the pleasure of demo-ing an HP Pavilion laptop computer for any and all scrappable parts today.  Fun enough in itself, but now come the real questions that I don't have the answers to.  What to do with many of the working pieces.  The LCD display, in particular. 

Some information that may be useful here:
HP Pavilion dv6227d Entertainment Notebook PC

There are many tags on the display itself, but I think this is the manufacturer:
AU Optronics B154EW04 V.2

I'm curious if anyone has done any projects involving displays such as this, and if so, what the application was, how it was wired, etc.  It's so light and thin, I'd just hate to see this thing go to waste or end up sitting in my parts bin.  Any help would be greatly appreciated! 

Happy Holidays,
ghost

caitlinsdad4 years ago
Quick answer - No one has yet been able to salvage the "working" LCD from a laptop. The proprietary drivers and electronics are so integrated with the rest of the laptop that you need the computer up and running to drive it. Only the manufacturer has the parts and code to figure out how to get it to display something. The rest of us have to resort to purchasing those smaller generic displays with the built in vga or composite input with built-in signal processors to display the appropriate input.
huck alexander (author)  caitlinsdad2 years ago
Been a while...but any hp technicians out there who could shed some light? There must be a way...

I've gone through a move, and managed to keep it in one piece. It's a sign!
As mentioned by caitlinsdad all the driver circuitry required to run the display is proprietary and integrated into the laptop's main board. The reason the display is so light and this is because all the electronics reside in the main body of the laptop. Either way you look at it you will need the main board, working or not, to make it a functoning screen.

Say you have a broken main board. You will need to work out what components on that board are driving the screen. Other then the GPU. Then hope that the driver chips being used are chips that are easily sourced. Chances are they are custom chips produced specifically for HP and programed with HP proprietary firmware.

Lets just say you can get all the components. Now you need specialized equipment to see through the multiple layers of the board and follow the traces from one component to another to work out the schematic and make your own board.

If you have a working main board and can work out which circuits on the board control the screen then you should be able to figure out a way to hack it. Or just attach that main board to the back of the screen and more on. But that takes away from how thin and light the screen is.
pretty much what caitlinsdad said. I think 2 german guys did it once, but they used like 200 dollars worth of hardware (with the finished project maybe like 80 dollars?) and a ton of effort. so it's really impracticle
huck alexander (author) 4 years ago
Hmm...I can see how that could be a major hurdle. Well, darn, it was a headache to get out in one piece without cracking and keeping it in its original shape. Is it possible to do further surgery and separate out the backlight and maybe use that for something?

I certainly don't have $200 to spare, and DEF don't have the know-how to reverse-engineer any proprietary electronics/driver complications. Thanks for the feedback, my friends.
It COULD be used for other purposes then as an LCD screen.

Think outside the box.. ...

We have "picture frame"

Some suggestions here

 Maybe a mirror? 

etc & etc.