| 摘要 |
PURPOSE: A display device is provided to reduce differences between images using a diffraction optical element. CONSTITUTION: When a user watches a display(110) within a first viewing angle range, the user can watch a first observation image on the display. When the user watches the display within a second viewing angle range, the user can watch a second observation image on the display. A diffraction optical element(120) diffracts light configuring the first observation image within a second viewing angle range. The diffraction optical element converts the first observation image into a third observation image. At the same time, the diffraction optical element converts a second observation image into a fourth observation image. |
