Head-mounted display device

Abstract

A head-mounted display device that allows a user to visually recognize a virtual image in a state where the head-mounted display device is mounted on the head of the user, including: an image processing unit that performs a process of generating an image; and an image display unit having an image light generating unit that generates image light representing the image, and configured such that the user can visually recognize the virtual image and the outside world, wherein the head-mounted display device is configured such that in a partial area of an area where the virtual image can be displayed in a visual field of the user, the outside world can be visually recognized preferentially.

What is claimed is: 
     
         1 . A head-mounted display device that allows a user to visually recognize a virtual image in a state where the head-mounted display device is mounted on the head of the user, comprising:
 an image processing unit that performs a process of generating an image; and   an image display unit having an image light generating unit that generates image light representing the image, and configured such that the user can visually recognize the virtual image and the outside world, wherein   the head-mounted display device is configured such that in a partial area of an area where the virtual image can be displayed in a visual field of the user, the outside world can be visually recognized preferentially.   
     
     
         2 . The head-mounted display device according to  claim 1 , wherein
 the virtual image is visually recognized at an edge portion of the area where the virtual image can be displayed, and the outside world is visually recognized preferentially in the area other than the edge portion.   
     
     
         3 . The head-mounted display device according to  claim 1 , wherein
 the image light generating unit includes a self light emitting element, and   the image processing unit generates an image where pixels in an area corresponding to the partial area are black pixels when the outside world is visually recognized preferentially in the partial area.   
     
     
         4 . The head-mounted display device according to  claim 1 , wherein
 the image light generating unit modulates light irradiated from a light source into image light representing the image,   the head-mounted display device further includes a light source control unit that controls the light source,   the image processing unit generates an image where pixels in an area corresponding to the partial area are black pixels when the outside world is visually recognized preferentially in the partial area, and   the light source control unit performs control of adjusting at least one of the luminance and irradiation range of the light source when the image where the pixels in the area corresponding to the partial area are black pixels is generated.   
     
     
         5 . The head-mounted display device according to  claim 1 , wherein
 the image display unit further has a light guide member that guides the image light to the eye of the user,   the light guide member has a light guide portion, a light incident portion that allows the image light to be incident on the light guide portion, and a light exiting portion that allows the image light guided by the light guide portion to exit to the outside,   the light guide portion has a first reflecting surface and a second reflecting surface that are arranged in parallel with each other and enable guiding of light through total reflection,   the light incident portion has a third reflecting surface at a predetermined angle with respect to the first reflecting surface,   the light exiting portion has a fourth reflecting surface at a predetermined angle with respect to the first reflecting surface,   image light from the image light generating unit is guided into the light guide member through a different number of times of reflection, and a plurality of image lights formed according to the number of times of reflection are combined via the light exiting portion to exit to the outside.   
     
     
         6 . The head-mounted display device according to  claim 1 , wherein
 the image light generating unit has a scanning optical system that scans signal light modulated according to the image to thereby allow the signal light to exit as scanning light, and a virtual image forming unit that receives irradiation of the scanning light from the scanning optical system to form a virtual image.