DISPLAY DEVICE
A display device is provided with an image display portion for temporally switching a left frame image to be viewed by a left eye, and a right frame image to be viewed by a right eye to emit video light so that a video is stereoscopically perceived; a light deflector for deflecting the video light emitted from the image display portion; and a controller for controlling the light deflector to adjust a deflection direction of the video light output from the light deflector. The image display portion changes polarization characteristics of the video light area by area, and the light deflector deflects the video light in response to the polarization characteristics so that the video light of the left frame image is incident to the left eye and the video light of the right frame image is incident to the right eye.
1 . A display device, comprising:
an image display portion which temporally switches between a left frame image to be viewed by a left eye and a right frame image to be viewed by a right eye to emit video light so that a video is stereoscopically perceived;
a light deflector configured to deflect the video light emitted from the image display portion; and
a controller which controls the light deflector to adjust a deflection direction of the video light output from the light deflector,
wherein the image display portion changes polarization characteristics of the video light area by area, and
the light deflector deflects the video light in response to the polarization characteristics.
2 . The display device according to claim 1 ,
wherein the image display portion includes a first display area configured to emit the video light as a first polarized light, and a second display area configured to emit the video light as a second polarized light different from the first polarized light,
the light deflector includes a first region configured to diffract the first polarized light while one of the left and right frame images is displayed, and a second region configured to diffract the second polarized light while the one frame image is displayed, and
while another of the left and right frame images is displayed, the first region diffracts the second polarized light and the second region diffracts the first polarized light.
3 . The display device according to claim 2 ,
wherein while the one of the left and right frame images is displayed, the first region allows the second polarized light to pass through without diffraction, and the second region allows the first polarized light to pass through without diffraction, and
while the other of the left and right frame images is displayed, the first region allows the first polarized light to pass through without diffraction, and the second region allows the second polarized light to pass through without diffraction.
4 . The display device according to claim 2 ,
wherein the second display area includes a polarization rotation portion which rotates a polarization direction of the first polarized light to generate the second polarized light.
5 . The display device according to claim 4 ,
wherein the polarization rotation portion includes polarization rotation elements configured to generate the second polarized light from the first polarized light, and
the polarization rotation elements are discretely and horizontally aligned.
6 . The display device according to claim 5 ,
wherein intervals between the polarization rotation elements are consistent.