You might consider the 31 position Hirose connector used on the Sharp and clone displays.
Also, you might consider NOT hardwiring to the connector pins, but rather having two sets of holes. That way, one could easily patch to the specific pinout required for the individual display.
Just my two cents..
> We're in the midst of redesigning the audiostix to add breakout-gs style =
> pads for all the signals which the ucb1400 doesn't use, so that it'll be =
> pretty easy to hook up an LCD panel to an audiostix to have audio + =
> touchscreen + LCD (due to popular demand). By "easy to hook up" I mean, =
> as easy as it is to hook up to a breakout-gs. Gordon's also planning on =
> doing what he calls "BOGS" sub-boards which are basically little boards =
> with feet on them designed to slot into the holes on the BreakOutGS =
> (hence BOGS) and then just basically have a connector on them for =
> particular panels. We could make those pretty easily for any panels =
> which turn out to be popular -- they'd basically just slot in =
> perpendicularly to the breakout-gs board (or new audiostix). We're also =
> redoing the thumbstix to basically be breakout-gs + USB male connector, =
> and these would fit there too.