Patent ID: 8570242

Claim:
An image displaying method for a head-mounted type display unit which includes: (a) a frame of a glasses type for being mounted on a head of an observer, (b) an image display apparatus attached to the frame, and (c) control means for controlling image display of the image display apparatus, and the image display apparatus including: (A) an image forming apparatus, and (B) an optical apparatus to which light, output from the image forming apparatus is input, by which the light is guided, and from which the light is outputted, the image displaying method comprising the steps of: storing a data group configured from a plurality of data in storage means provided in the control means; adding a data identification code to each of the data which configure the data group; sending a designation identification code and display time information at predetermined intervals of time from outside to the control means; and reading out, in the control means, data whose data identification code coincides with a received designation identification code from the storage means and controlling the image forming apparatus to display an image based at least in part on the read out data for a period of time corresponding to a received display time information.