Display apparatus and display unit

Abstract

A display apparatus includes a display unit that projects an image to a light transmissive display member. The display apparatus forms a virtual image of the image projected by the display unit. The display unit includes a display device including a display region and a non-display region formed around the display region, a display controller that inputs an image signal to the display device in order to display a predetermined image in the display region, and a projection optical system that projects the image displayed on the display device to the display member. The projection optical system includes a first reflecting member disposed on a display device side and a second reflecting member disposed on a display member side in an optical path extending from the display device to the display member. The display controller is able to change a display position of the image in the display region.

What is claimed is: 
     
         1 . A display apparatus comprising a display unit that projects an image to a light transmissive display member, the display apparatus forming a virtual image of the image projected by the display unit on an opposite side to a user side with respect to the display member,
 the display unit comprising:
 a display device that includes a display region and a non-display region formed around the display region; 
 a display controller that inputs an image signal to the display device in order to display a predetermined image in the display region; and 
 a projection optical system that projects the image displayed on the display device to the display member, 
   the projection optical system includes a first reflecting member disposed on a display device side and a second reflecting member disposed on a display member side in an optical path extending from the display device to the display member,   the display controller is configured to be able to change a display position of the image in the display region by controlling the image signal input to the display device, and   the display controller controls the display device such that Vi/Is is greater than or equal to 2 and less than 7, where Vi is a movement amount of a user's viewpoint region and Is is a movement amount of the image displayed on the display device.   
     
     
         2 . The display apparatus according to  claim 1 , wherein a reflection surface of the first reflecting member that reflects the image displayed on the display device has a convex shape, and a reflection surface of the second reflecting member that projects the image to the display member has a concave shape of a free-form surface. 
     
     
         3 . The display apparatus according to  claim 1 , wherein a reflection surface of the first reflecting member has a rotationally asymmetric convex shape. 
     
     
         4 . A display unit that forms a virtual image of an image by projecting the image to a light transmissive display member,
 the display unit comprising:   a display device that includes a display region and a non-display region formed around the display region;   a display controller that inputs an image signal to the display device in order to display a predetermined image in the display region; and   a projection optical system that projects the image displayed on the display device to the display member,   wherein the projection optical system includes a first reflecting member disposed on a display device side and a second reflecting member disposed on a display member side in an optical path from the display device to the display member,   the display controller is configured to be able to change a display position of the image in the display region by controlling the image signal input to the display device, and   the display controller controls the display device such that Vi/Is is greater than or equal to 2 and less than 7, where Vi is a movement amount of a user's viewpoint region and Is is a movement amount of the image displayed on the display device.   
     
     
         5 . The display unit according to  claim 4 , wherein a reflection surface of the first reflecting member that reflects the image displayed on the display device has a convex shape, and a reflection surface of the second reflecting member that projects the image to the display member has a concave shape of a free-form surface. 
     
     
         6 . The display unit according to  claim 4 , wherein a reflection surface of the first reflecting member has a rotationally asymmetric convex shape.