>I've acquired a spartan 3e starter board, and have completed some of the 
>  simpler tasks on fpga4fun.com. I am looking for some guidance on how 
>to implement LVDS to control a LCD panel.

>I have the docs on the panel, it is a 1366 x 768 40" LCD from a tv. It 
>uses 4 lvds pairs @ 80 mhz. I have the datasheet for the panel. They 
>used a THC63LVDM83R in the tv to do the lvds connection to the panel, 
>but I am having no luck sourcing one. So I am wondering if I can do 
>without and if anyone has happened to have had experience doing so.

You can proberbly use another LVTTL -> LVDS transmitter chip. Just pay
attention to number of bits and lanes.

The Spartan-3E is capable of transmitting LVDS on it's own. The bitrate is
limited however to ~500-600 Mbps per differential pair. And the developer
board needs a jumper setting to use 2.5V or such I think.
There's a datasheet explicitly on using LVDS with Spartan chips from Xilinx.

Bitstream format is also a bit backwards, but not a big deal.

Please keep us posted on any progress ;)

On 2008-08-10, News <News@News.com> wrote:
>
> I have the docs on the panel, it is a 1366 x 768 40" LCD from a tv. It 
> uses 4 lvds pairs @ 80 mhz. I have the datasheet for the panel. They 
> used a THC63LVDM83R in the tv to do the lvds connection to the panel, 

I did something similar with a 42" plasma display.  The original driver
was based on an embedded PC that had FPD-Link output, which is a standard
similar to what you describe for getting video data over a flex cable in
a laptop hinge.  It used a DS90CF384 decoder because the panel takes.
direct 24-bit parallel RGB.  If you google your part you'll see close
relatives of that named as alternates for your Thine part, so I bet your
protocol is identical to FPD-Link, which has many driver options.  If I
remember right, 4-wire (clk + 3) is for 16-bit.

The other option is to implement your own encoder in the FPGA, which will
save you pins.

-- 
Ben Jackson AD7GD
<ben@ben.com>
http://www.ben.com/

Greetings,

I'll start with my apologizes for being a complete newbie to the fpga world.

I've acquired a spartan 3e starter board, and have completed some of the 
  simpler tasks on fpga4fun.com. I am looking for some guidance on how 
to implement LVDS to control a LCD panel.

I have the docs on the panel, it is a 1366 x 768 40" LCD from a tv. It 
uses 4 lvds pairs @ 80 mhz. I have the datasheet for the panel. They 
used a THC63LVDM83R in the tv to do the lvds connection to the panel, 
but I am having no luck sourcing one. So I am wondering if I can do 
without and if anyone has happened to have had experience doing so.

Thanks for your time.