It seemed like quite a lot of the alien PADDs on Enterprise were reused/repainted from the earlier shows. One of the holodeck PADDs from TNG was painted gold and redone as an Orion PADD too, for example. The graphic it used was very much like the one you've so skillfully reproduced.
@Oddball do you happen to recall which episode of DS9 used this smaller klingon PADD? I recently re-watched the series, and missed its appearance (the bigger version of this showed up a lot), but I know it's there somewhere.