Head-mounted image display device and data processing apparatus including the same

A head-mounted image display device wherein a liquid crystal display panel and an enlarging optical system are housed in a frame and wherein images generated on said liquid crystal display panel are visible through said enlarging optical system in the field of view in front of said frame, comprising:

• a first direction detection means for detecting a direction of the head of a user of said device;
• an observation point detection means for detecting said user's line of sight;
• an image generation means having functions for forming a virtual display screen displaying a plurality of virtual images in the field of view in front of said frame, scrolling said virtual display screen based on an output of said first direction detection means, selecting one virtual image from the plurality of virtual images on said virtual display screen based on an output of said observation point direction means, and moving the selected virtual image based on outputs of said observation point detection means and said first direction detection means;
• and
• a trigger input means for determining the selection of one virtual image and the finish of moving said selected virtual image, in said image generation means.