Interesting HMD, looks sleek, but can’t say I’m a fan since the display arm looks to be blocking a fair chunk of the pilot’s peripheral vision.
While a HMD is normally reserved for attack helicopters to help operate the gun turret, in this instance they probably have it synced to the IRST ball turret instead, and is probably only for the missile armed attack version.
This would provide them with limited shoot and scoot capabilities whereby the helicopter could change course after firing a missile, while the co-pilot/gunner can use the HMD synced IRST turret to provide continuous target illumination so long as the IRST still has LoS on the target.
Arguably they could have done away with that and had more capabilities with a true fire and forget ATGM, but those are a lot more expensive per round.
I think this is a good illustration on the different mentality and calculus between the PLA and many western militaries - western militaries overwhelmingly do not expect to have to fight high intensive, long duration wars against peer or near peer opponents, certainly not to the extent where logistics and massive ramping up of production of weapons and munitions would come into play. For the PLA, that is almost to be expected. As such the PLA pays more attention to logistical, resupply and replacement costs and timescales when making their procurement decisions than most western militaries.