Any chance you can take that photo with the board (or the lighting) tilted to another angle?
I can sort of make out "CCH" on the top row, but not much after that.
Then again, it might be a TPS61181 white LED driver after all; the package seems to be the same, and the pinout looks similar enough (even though they're only using three of the six available channels. That, and the "black screen" description fits too.
http://www.ti.com/lit/ds/slvs801c/slvs801c.pdf