Is this something that is practical and commonly done, or only theoretically possible?
I have an older model Sony 4K TV (pre-Android) that is so slow now after its recent firmware updates that it responds to button presses only after 2-3 seconds. It's unbearable!
I'd love to be able to just pop in a new driver board and refresh the TV, but I've never heard of anyone doing this kind of thing before.
Right now I'm working on a project with some M315DJJ-K30 and MV238QUM-N20 panels, but parts are still in shipping so I don't have anything to show for it yet.
Do these boards support HDCP?
I've stumbled into a pile of panels and I have several orders of different driver boards on their way to me from Shenzhen, but nothing in-hand to say if they work yet.
Personally I'm trying to get my hands on the SDK for the software that runs in the driver chip (does the OSD and the scaling and everything else), because I think there's a lot of potential there. But boy it's like pulling teeth.
Similarly, the Exploiteers (née GTVHacker) have done quite a bit of reverse-engineering of the stock boards, so you can just fix the broken-ass firmware they ship with.
Ultimately I'm picturing something like the WRT54G, a single modem that the community coalesces around, to the point that a decade later, third-party firmwares have become such a force that manufacturers build hardware specifically to run it.