Hi Guys, thanks for the responses!
I actually found the problem. Turns out that I need to pull pin 17 on the SN75LVDS83 to GND as opposed to VCC to clock data in on the trailing edge of the input pixel clock. Apparently my LCD data traces are just long enough to run into some marginal timing clk / data issues....
The noise I was seeing actually turned out to be mostly due to scope probe ground lead inductance