A display apparatus comprising a display unit , a display device having a display region , a projection optical system and a housing , wherein the display unit is configured to project an image to a light transmissive display member , the display apparatus allowing a user to visually perceive 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 is configured to accommodate the display device that is configured to display the image and the projection optical system that is configured to project the image displayed on the display device to the display member in the housing including an opening through which projected light is output, the projection optical system includes a second reflecting member having a concave reflection surface in an optical path (L) extending from the display device to the opening and a first reflecting member in the optical path (L) extending from the display device to the second reflecting member including the reflection surface being a concave shape, the opening of the housing includes: a first end formed at a rim close to the display device on the opening ; and a second end formed at a rim close to the second reflecting member having a concave reflection surface on the opening , and wherein the entire display region on the display device is disposed so as to be located on the side of first reflecting member with respect to a straight line (LS) connecting the first end and the second end , above the straight line (LS), such that incident light passing the opening of the housing is prevented from directly reaching the display region . wherein the display unit is configured to project an image to a light transmissive display member , the display apparatus allowing a user to visually perceive 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 is configured to accommodate the display device that is configured to display the image and the projection optical system that is configured to project the image displayed on the display device to the display member in the housing including an opening through which projected light is output, the projection optical system includes a second reflecting member having a concave reflection surface in an optical path (L) extending from the display device to the opening and a first reflecting member in the optical path (L) extending from the display device to the second reflecting member including the reflection surface being a concave shape, the opening of the housing includes: a first end formed at a rim close to the display device on the opening ; and a second end formed at a rim close to the second reflecting member having a concave reflection surface on the opening , and wherein the entire display region on the display device is disposed so as to be located on the side of first reflecting member with respect to a straight line (LS) connecting the first end and the second end , above the straight line (LS), such that incident light passing the opening of the housing is prevented from directly reaching the display region . a first end formed at a rim close to the display device on the opening ; and a second end formed at a rim close to the second reflecting member having a concave reflection surface on the opening , and wherein the entire display region on the display device is disposed so as to be located on the side of first reflecting member with respect to a straight line (LS) connecting the first end and the second end , above the straight line (LS), such that incident light passing the opening of the housing is prevented from directly reaching the display region . <EOS>