Head-mounted display apparatus, control method, and mobile platform system

A mobile platform system, comprising:

• a head-mounted display apparatus that comprises:
• a housing having an electrical cavity;
• a first display assembly at least partially disposed within the electrical cavity;
• and
• a control assembly configured to control the first display assembly to display an image, wherein the control assembly is disposed within the electrical cavity and at least partially disposed at a side of the first display assembly in a first direction, the first direction including at least one of a direction away from a face of a wearer or a forward direction of the head-mounted display apparatus;
• a mobile platform equipped with an imaging device, wherein the imaging device is configured to capture an image and transmit the image to the first display assembly for display.

A head-mounted display apparatus, comprising:

• a device body, comprising a plurality of outer surfaces and an inner surface facing a face of a wearer;
• a first display assembly having a first window exposed on the inner surface;
• a second display assembly having a second window exposed on at least one of the outer surfaces;
• and
• an interaction assembly configured to receive an interaction command, wherein the interaction command is configured to control a display state of at least one of the first display assembly or the second display assembly.