OK, been trying to figure out how best to view live feed from Solo in the sun. Tried Nexus 7 way dim, Tab Pro 8.4 also dim, Tab S 8.4 - still not bright enough. Then found this on Amazon:
Search Amazon for Anbee® DJI Inspire 1 FPV Monitor Sunshade. $14.99. As it is made of cardboard covered with a white vinyl it was super easy to trim to fit controller. Clamp holds both shade and tab in place. Now just need to cover Inspire logo with a 3DR sticker:-).