When you're a big rich company like Samsung, you have to expect to get sued, whether or not you do anything wrong. This case centered on the use of ambient light sensors for controlling the brightness of displays in things like phones and TVs. It settled almost on the courthouse steps--we were in Marshall, Texas in July 2019 for the trial. Expert witnesses never get to hear the settlement terms, but going by the width of the smiles on the attorneys' faces, it was a pretty good deal for Samsung.
I did several expert reports and declarations, based on a lot of testing and source code examination of both Samsung's products and prior art products going back 15 or more years before the priority date of the patent.
I've subsequently been retained by VIZIO Inc. to help with their defense against another Polaris law suit.