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New system project

 3:03 pm on Dec 14, 2011 (gmt 0)

Ok, I have decided to build myself a system, but with a difference...

I want to build a system that is entirely one piece and self contained. A bit like a tablet, but essentially wall mounted. This will entirely be used for entertainment and not work related.

So far I have built the environment I want to use and set it up on my laptop. This has helped me determine what is and what is not required.

The main stumbling block I have now is hardware. In a conventional PC set up you have a graphics card and connect that to your graphics input on your display. My display will be an LCD panel, so I assume there has to be an LCD controller. I just cant quite figure out how the graphics connection will be made. If I need to use the graphics output this wont really be a problem, because it will still technically be inside the device. How is this achieved with laptops and tablets? Am I right in assuming there is a graphics output as part of the main board that connects to the LCD controller?

What I have so far...

OS: Ubuntu Linux (mythubuntu)
Input: LIRC (Linux infrared remote control)
System: Nano ATX board. Sata flash storage for OS

I have found suppliers for displays, but thats where things get very confusing. What would you say is the best practice method of connecting the display to the system.

I have also found someone to build the mold for the actual casing but I cant do anything related to that until I know exactly what hardware/display will be used. Once I know exactly what display to use I will know the dimensions exactly so I can have the mold machined.

You will probably wonder why not just go out and buy something like this off the shelf, but where is the fun in that. Everyone needs a winter project.




 4:36 pm on Dec 14, 2011 (gmt 0)

yes in laptops its on the mainboard and sent right to the LCD via a ribbon cable. You won't be able to pull this off with a conventional display.

Just use the graphics output on your ATX board whatever it might be.


 4:57 pm on Dec 14, 2011 (gmt 0)

I think that may well be the only way. I spoke with a supplier and they sent me an email with some details of various transfer methods of getting video to the lcd. LVDS output appears to be the preferred option.

From what I have been told the easiest solution appears to be DVI/VGA/HDMI output. I then need a TFT controller, and this would also handle back-light inversion. If I use LVDS then I am potentially opening a new can of worms regarding back lighting.



 7:49 pm on Dec 14, 2011 (gmt 0)

why do you need a TFT if the atx board you have / will have, has HDMI or DVI?


 11:54 pm on Dec 14, 2011 (gmt 0)

It will but I still need a controller to be able to connect it.. the lcd is just a bare bones panel with nothing but the controller inputs.

I now have information overload lol.. been reading up on tech specks for controllers, inverters etc etc lol bit of a learning curve. (major understatement)



 2:46 pm on Dec 15, 2011 (gmt 0)

OOoOOOoOOoO I see now. wow yea you really are getting yourself in deep huh!

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