Olympus Corp. has made a prototype head mount display (HMD) designed to be worn at all times and to display information when required without impairing vision. The HMD usually does not display anything but shows simple information on certain occasions, e.g. to notify the arrival time of the train when the user comes to the station platform, or to draw attention when the user receives an e-mail. A 3.8-inch translucent screen with a diagonal length of 10 cm seems to exist 50 cm ahead of the user. When actually worn, the impression is that there is almost no annoyance, things can be seen easily through the display and it never hinders sight.
The main body of the HMD is shaped like a stick and measures 3.2 x 3.2 x 27 mm. A 0.16-inch 113,000 pixel LCD panel is embedded in the main body to be attached to the eyeglasses. The total weight of the main body and the attachment portion are as light as 27 g enabling prolonged use.
Tadashi Nezu, Nikkei Electronics