The HU85LS blacks were closer to dark gray then deep black. This was obvious when watching darker scenes at night in my room. There are home projectors in the HU85LS price point that can provide better black level and shadow detail, but they are not nearly as bright nor are they ultra-short throw units. While we have reviewed several home theater projectors many have much better black levels and higher contrast, but these are only beneficial in a darkened theater or room with lots of light control.
LG Laser TVs are designed to be a good home entertainment projector. They are not intended to compete against a serious home theater projector in a dark room. This UST laser projector when paired with an ALR type screen is geared toward conference rooms, hotel lobbies and museums – not a serious home theater/cave.
Whenever I evaluate a projector's picture, I also try to consider the unit's likely use case. Even though the projector's black level could be better, the HU85LS will probably be used in a room with some ambient light so the ability to reproduce ultra-deep blacks is not critical.
In those environments, the extra brightness, longer-life, and lower maintenance provided by a DLP based Laser projector would likely be more beneficial.
My Elite Screen Aeon CLR3 UST screen which has a gain of 0.8 did improve the black level when viewing content in ambient light and in a darker room but it was at the expense of some screen brightness.