| 摘要 |
An autostereoscopic display device includes a projector, an angle-enlarging module, a screen, and a polarization selector. The projector provides a lamp image unit with a first polarization state. The angle-enlarging module includes a deflecting plate, a wavelength retarder, and a polarizer. The deflecting plate has a first deflecting segment and a second deflecting segment alternately with each other. The first and the second deflecting segments respectively deflect the lamp image unit to a first direction and a second direction different from each other. The wavelength retarder has a transmitting segment aligned to the first deflecting segment and a wavelength retarding segment aligned to the second deflecting segment. The transmitting segment maintains the first polarization state when the lamp image unit passes therethrough. The wavelength retarding segment converts the first polarization state into a second polarization state. The polarization selector is disposed between the projector and the angle-enlarging module. |
| 主权项 |
1. An autostereoscopic display device, comprising:
at least one projector configured to provide a lamp image unit with a first polarization state; an angle-enlarging module comprising:
a deflecting plate having at least one first deflecting segment and at least one second deflecting segment alternately disposed with each other, the first deflecting segment being configured to deflect the lamp image unit to a first direction, and the second deflecting segment being configured to deflect the lamp image unit to a second direction, wherein the first direction is different from the second direction;a wavelength retarder having at least one transmitting segment and at least one wavelength retarding segment, the transmitting segment being aligned to the first deflecting segment, and the wavelength retarding segment being aligned to the second deflecting segment, wherein the transmitting segment allows the lamp image unit to pass therethrough and maintains the first polarization state, and the wavelength retarding segment converts the first polarization state of the lamp image unit into a second polarization state; anda polarizer, the wavelength retarder being disposed between the deflecting plate and the polarizer; a screen, the angle-enlarging module being disposed between the projector and the screen; and a polarization selector disposed between the projector and the angle-enlarging module, wherein in a first time period, the polarization selector converts the first polarization state of the lamp image unit into the second polarization state, the lamp image unit then passes through the angle-enlarging module, is deflected to the first direction, and is incident the screen, in a second time period, the lamp image unit maintains the first polarization state after passing through the polarization selector, the lamp image unit then enters the angle-enlarging module, is deflected to the second direction by the angle-enlarging module, and is incident the screen. |
