Head-mounted display system and method for presenting display on head-mounted display

1. A head-mounted display system comprising:

an inclination detector for detecting an inclination of a head-mounted display;

a display controller for generating an application image in accordance with the detected inclination for display on the head-mounted display, wherein the display controller is configured to:

superimpose a menu image on the application image for display on the head-mounted display in response to a determination that the detected inclination exceeding a first threshold value; and

a controller configured to communicate with the display controller, wherein the controller is usable to navigate the menu image.

2. The head-mounted display system according to claim 1 , wherein the display controller is further configured to remove the menu image from the application image in response to a determination that (i) an angular displacement of the detected inclination from the first threshold value is negative and (ii) a magnitude of the angular displacement exceeds a second threshold value.

3. The head-mounted display system according to claim 1 , wherein the inclination detector is configured to detect a pitch angle of the head-mounted display.

4. The head-mounted display system according to claim 1 , wherein the inclination detector is configured to detect a yaw angle of the head-mounted display.

5. The head-mounted display system according to claim 1 , wherein the display controller is further configured to pause the application image in response to the determination that the detected inclination exceeding a first threshold value.

6. The head-mounted display system according to claim 1 , wherein the first threshold is greater than or equal to about 20-degrees.

7. A method comprising:

detecting an inclination from an initial angle of a head-mounted display;

displaying an application image on the head-mounted display in accordance with the detected inclination;

superimposing a menu image on the application image displayed by the head-mounted display in response to a determination that the detected inclination exceeds the first threshold value; and

navigating the menu image using a controller configured to communicate with a control device, wherein the control device is configured to control the head-mounted display.

8. The method according to claim 7 , further comprising removing the menu image from the application image on the head-mounted display in response to a determination that (i) an angular displacement of the detected inclination from the first threshold value is negative and (ii) that a magnitude of the angular displacement exceeds a second threshold value.

9. The method according to claim 7 , wherein the detecting of the inclination comprises detecting a pitch angle of the head-mounted display.

10. The method according to claim 7 , wherein the detecting of the inclination comprises detecting a yaw angle of the head-mounted display.

11. The method according to claim 7 , further comprising pausing the application image in response to the determination that the detected inclination exceeds the first threshold.

12. The method according to claim 11 , further comprising:

changing, after the pausing, the application image in response to a determination that (i) an angular displacement of the detected inclination from the first threshold value is negative and (ii) that a magnitude of the angular displacement exceeds a second threshold value.

13. The method according to claim 7 , further comprising selecting an item of the menu image in response to a signal from a user.

14. A method comprising:

detecting an inclination from an initial angle of a head-mounted display in a first angular direction;

displaying an application image on the head-mounted display in accordance with the detected inclination in the first angular direction;

superimposing a menu image on the application image displayed by the head-mounted display in response to a determination that the detected inclination in the first angular direction exceeds the first threshold value;

pausing the application image in response to the determination that the detected inclination in the first angular direction exceeds the first threshold value;

detecting, following the pausing, an inclination of the head-mounted display in a second angular direction opposite the first angular direction; and

resuming the application image in response to a determination that a magnitude of the detected inclination in the second angular direction is greater than a second threshold.

15. The method according to claim 14 , wherein the detecting of the inclination in the first angular direction comprises detecting a pitch angle of the head-mounted display.

16. The method according to claim 14 , wherein the detecting of the inclination in the first angular direction comprises detecting a yaw angle of the head-mounted display.

17. The method according to claim 14 , further comprising removing the menu image from the application image in response to the determination that the magnitude of the detected inclination in the second angular direction is greater than the second threshold.

18. The method according to claim 14 , wherein the first threshold is greater than or equal to about 20-degrees.

19. The method according to claim 14 , further comprising selecting an item of the menu image in response to a signal from a user.