Outside-facing display for head-mounted displays

1. A system for a multiple screen head-mounted display, the system comprising:

a first transceiver to obtain a first perspective of a virtual environment, the first perspective used to render a first scene on a user facing display of a head-mounted display;

a calculator to transform the virtual environment from the first perspective to a second perspective; and

a second transceiver to provide the second perspective of the virtual environment, the second perspective used to render a second scene on an external facing display of the head-mourned display.

2. The system of claim 1 , wherein the head-mounted display includes the external facing display.

3. The system of claim 1 , wherein the external facing display is removably attached to the head-mounted display.

4. The system of claim 1 , wherein the first transceiver is to receive a command from a mobile device to transform the virtual environment from the first perspective to the second perspective.

5. The system of claim 1 , further comprising a gesture sensor to provide a parameter to the calculator for use by the calculator to transform the virtual environment from the first perspective to the second perspective.

6. The system of claim 1 , further comprising a position sensor to provide positional data to the calculator for use by the calculator to transform the virtual environment from the first perspective to the second perspective.

7. The system of claim 6 , further comprising a fiducial marker presented on the external facing display, wherein the positional data is based on the position sensor detecting a position of the fiducial marker with respect to the position sensor.

8. The system of claim 1 , wherein the second perspective is based on a position of the external facing display relative to the user facing display.

9. The system of claim 1 , further comprising a depth sensor to:

receive depth information;

detect an object based on the depth information; and

provide an object identification to the calculator as a parameter for use by the calculator to transform the virtual environment from the first perspective to the second perspective.

10. The system of claim 1 , wherein the head-mounted display includes the transceiver.

11. The system of claim 1 , further comprising a housing support the user facing display and the external facing display.

12. The system of claim 1 , further comprising a secondary external facing display of the head-mounted display, wherein the calculator is to transform the virtual environment from a first perspective to a third perspective.

13. The system of claim 1 , wherein the second transceiver is to provide the second perspective used to render the scene on a three-dimensional wrap-around external facing display of the head-mounted display.

14. A method of providing a second perspective of a virtual environment to render a second scene on an external facing display of a head-mounted display, the method comprising:

obtaining a first perspective in a virtual environment, the first perspective used to render a first scene on a user facing display of a head-mounted display;

transforming the virtual environment from the first perspective to a second perspective; and

providing the second perspective to render a second scene on an external facing display of the head-mounted display.

15. The method of claim 14 , wherein providing the second perspective includes providing the second perspective to the external facing display attached to the head-mounted display.

16. The method of claim 14 , further comprising receiving a command from a mobile device to transform the virtual environment from the first perspective to the second perspective.

17. The method of claim 14 , further comprising receiving a parameter from a gesture sensor, the parameter for transforming the virtual environment to the second perspective.

18. The method of claim 14 , further comprising:

receiving a message from a position sensor; and

determining a position of the head-mounted display from positional data included in the message; and

providing the position to the calculator as a parameter to transforming the virtual environment.

19. The method of claim 18 , wherein the positional data is based on detecting a fiducial marker presented on the external facing display.

20. The method of claim 14 , wherein transforming the virtual environment from the first perspective to the second perspective includes matching the second perspective to the first perspective.

21. The method of claim 14 , further comprising:

receiving depth information from a depth sensor;

detecting an object based on the depth information; and

providing an object identification to the calculator as a parameter to transforming the virtual environment.

22. The method of claim 14 , further comprising transforming the virtual environment from the first perspective to a third perspective and providing the third perspective to render on a secondary external facing display of the head-mounted display.

23. A non-transitory machine-readable medium including instructions, for providing a second perspective of a virtual environment to render a second scene on an external facing display of a head-mounted display, which when executed by a machine, cause the machine to:

obtain a first perspective in a virtual environment, the first perspective used to render a first scene on a user facing display of a head-mounted display;

transform the virtual environment from the first perspective to a second perspective; and

provide the second perspective to render a second scene on an external facing display of the head-mounted display.

24. The non-transitory machine-readable medium of claim 23 , further comprising rendering the second scene on the external facing display using the second perspective.

25. The non-transitory machine-readable medium of claim 23 , further comprising receiving a command from a mobile device to transform the virtual environment from the first perspective to the second perspective.