an image display apparatus is provided for providing a virtual image to an observer . the image display apparatus includes an image display unit , an eyepiece optical system , and a container . the image display unit is for providing modulated light corresponding to the virtual image . the eyepiece optical system is for directing the modulated light from the image display unit to one or both of the observer &# 39 ; s eyes . the container is for supporting the image display unit on an edge portion of the eyepiece optical assembly .