Hi @kwebster83 !
Unfortunately, for Apalis TK1, there is no support for LVDS on upstream kernel (reference: Toradex System/Computer on Modules - Linux BSP Release)
As noted in the link above, a workaround could be to use the downstream L4T kernel, which does support LVDS.
Then, you can take a look in this Display Output, Resolution and Timings (Linux) | Toradex Developer Center article to be able to setup your device tree.
Best regards,