Patent ID: 9081181
Filing Date: 2015-07-14
Classification: G02B,H04N

Abstract:
1. A Head Mounted Display (HMD) device, the device comprising: a display unit including a left display and a right display for a left eye and a right eye configured to display images for the left eye and the right eye; a vital reaction sensor unit including a first vital reaction sensor for the left eye and a second vital reaction sensor for the right eye configured to detect vital reaction changes of a user viewing the left display and the right display, and to generating, when a vital reaction change is detected, an interruption signal comprising coordinates of a position of the left eye and the right eye at which the vital reaction change is detected; a control unit configured to output images for the left eye and the right eye to the display unit, to control the distance between the left display and the right display, and to adjust, upon generation of the interruption signal, positions of the images according to the received coordinates and a given offset; and an optical feedback unit configured to adjust one of a position of the left display and a position of the right display by changing coordinates returned through an optical feedback part from the vital reaction sensors according to the same offset value, wherein the control unit is further configured to construct an extended coordinate plane by combining a coordinate plane of the left eye and a coordinate plane of the right eye based on the offset value so that coordinates of positions of the left eye and the right eye are included in the extended coordinate plane as a coordinates of a single position, wherein at least one of the coordinate plane of the left eye and the coordinate plane of the right eye is adjusted by adding the offset value before the combining.