Patent ID: 9348142
Filing Date: 2016-05-24
CPC Classification: G02B,G06F

Claim Text:
1. A detachable head mounted display (HMD) device comprising: a display unit configured to display visual information; a detached sensor unit configured to detect whether the HMD device has been affixed to eye-glasses, wherein the HMD device is separable from and mountable to a lens or temple part of the eye-glasses; a sensor unit configured to detect an input signal generated when the eye-glasses to which the HMD device is affixed are touched; and a controller configured to control the display unit, the detached sensor unit and the sensor unit, wherein the controller is further configured to: when the HMD device detects that the HMD device is affixed to the eye-glasses, acquire identification information of the eye-glasses, acquire a look up table related to the identification information, receive the detected input signal from the sensor unit, acquire a control input related to the input signal from the look up table, perform a function corresponding to the control input, and adjust a focus of the visual information, which is displayed, on the basis of the identification information of the eye-glasses to which the HMD device is affixed.