Display scaling based on movement of a head-mounted display

摘要

A wearable computing system may include a head-mounted display (HMD) with a display configured to display images viewable at a viewing location. When aligned with an HMD wearer's line of sight, the entire display area of the display may be within the HMD wearer's field of view. The area within which an HMD wearer's eye can move and still view the entire display area is termed an “eye box.” However, if the HMD slips up or down, the display area may become obscured, such that the wearer can no longer see the entire image. By scaling or subsetting an image area within the display area, the effective eye box dimensions may increase. Further, in response to movements of the HMD with respect to the wearer, the image area can be adjusted to reduce effects such as vibration and slippage.

主权项

1. A wearable computing device, comprising:
a head-mounted display (HMD) having a display area, wherein the HMD is configured to display images within an image area of the display area, and wherein all of the image area is visible through an optical element of the HMD by an eye of a wearer of the HMD when the eye of the wearer is located within a first range of viewing locations; an HMD-tracking system that is configured to detect movement of the HMD relative to the eye of the wearer; and a controller for controlling the HMD, wherein the controller is configured to adjust the image area within the display area based on the detected movement so as to increase a range of viewing locations from which the image area is visible through the optical element by the eye of the wearer to a second range of viewing locations that (i) is larger than the first range of viewing locations and (ii) includes the first range of viewing locations.