| 摘要 |
PROBLEM TO BE SOLVED: To provide a display device which can make an area where very glaring bright spots are observed, small.SOLUTION: A display device has a screen 21 which can switch between a transparent state and a scattering state for visible light, and a tabular reflecting plane symmetry imaging element 41 ejecting luminous flux entered with a convergence or emission state for an own element surface with an emission or convergence state for the element surface being symmetrical. An image plane 61 of an image light projected to image with the appointed image plane 61 and the screen 21 are placed in plane symmetry for the reflecting plane symmetry imaging element 41. |
