Head-mounted display device with stepper motors for moving displays

A method of moving a first display and/or a first set of one or more lenses and a second display and/or a second set of one or more lenses in a head-mounted display device, the method comprising:

• at a first electronic controller of the head-mounted display device:
• determining a first position of a first display and/or a first set of one or more lenses of the head-mounted display device;
• receiving information identifying a second position of the first display and/or the first set of one or more lenses;
• and
• generating one or more electrical signals that cause a first stepper motor of the head-mounted display device to move the first display and/or the first set of one or more lenses from the first position of the first display and/or the first set of one or more lenses to the second position of the first display and/or the first set of one or more lenses, wherein the first stepper motor is mechanically coupled to the first display and/or the first set of one or more lenses;
• and
• at a second electronic controller of the head-mounted display device:
• determining a first position of the second display and/or the second set of one or more lenses of the head-mounted display device;
• receiving information identifying a second position of the second display and/or the second set of one or more lenses;
• and
• generating one or more electrical signals that cause a second stepper motor of the head-mounted display device to move the second display and/or the second set of one or more lenses from the first position of the second display and/or the second set of one or more lenses to the second position of the second display and/or the second set of one or more lenses, wherein the second stepper motor is mechanically coupled to the second display and/or the second set of one or more lenses.

A first electronic controller configured for use in a head-mounted display device, the controller comprising:

• one or more processors;
• and
• memory storing one or more programs for execution by the one or more processors, the one or more programs including instructions for:
• determining a first position of a first display and/or a first set of one or more lenses of the head-mounted display device;
• receiving information identifying a second position of the first display and/or the first set of one or more lenses;
• generating one or more electrical signals that cause a first stepper motor of the head-mounted display device to move the first display and/or the first set of one or more lenses from the first position to the second position, wherein the first stepper motor is mechanically coupled to the first display and/or the first set of one or more lenses;
• determining a first position of a second display and/or a second set of one or more lenses of the head-mounted display device;
• receiving information identifying a second position of the second display and/or the second set of one or more lenses;
• and
• generating one or more electrical signals that cause a second stepper motor of the head-mounted display device to move the second display and/or the second set of one or more lenses from the first position of the second display and/or the second set of one or more lenses to the second position of the second display and/or the second set of one or more lenses, wherein the second stepper motor is mechanically coupled to the second display and/or the second set of one or more lenses.