| 摘要 |
PROBLEM TO BE SOLVED: To provide a device which can be switched between a state to display an image of high picture quality and a mirror state to give a reflection image which is easily visible and suitable for an user to reflect and observe his/her face or posture. SOLUTION: The following members are successively disposed in the device: an image display part 1000 which emits image light 3001, a reflection type polarization selecting means 300 which transmits a first linearly polarized light component emitted from the image display part 1000 and reflects a second linearly polarized light component having the polarization axis perpendicular to that of the first component, a varying part 400 for the polarization axis of the transmitted light which can select either a state to change the polarization axis of the incident linearly polarized light or a state not to change the light, and a polarization selecting member 500 which absorbs the first linearly polarized component light in the incident light and transmits the second linearly polarized component having the polarization axis perpendicular to that of the first light. The image display part 1000 is provided with an absorption type polarization selecting means 208 to emit the first linearly polarized light as the image light. |
