Image display device

摘要

According to one embodiment, an image display device includes a liquid crystal optical device and an image displayer. The liquid crystal optical device includes a plurality of first electrodes, a plurality of second electrodes, a liquid crystal layer provided between the first and second electrodes, and a first driver. The first driver forms a refractive index distribution in the liquid crystal layer. The image displayer includes a plurality of subpixels. Each of subpixels has a first length along a third direction and a second length along a fourth direction. A distance along the third direction between most proximal electrodes of the first electrodes is shorter than a distance along the fourth direction between most proximal electrodes of the second electrodes.

主权项

1. An image display device, comprising:
a liquid crystal optical device that includes:
a plurality of first electrodes extending in a first direction in a plane,a plurality of second electrodes extending in a second direction in the plane, the second direction being different from the first direction,a liquid crystal layer provided between the first electrodes and the second electrodes, anda first driver electrically connected to the first electrodes and the second electrodes, wherein the first driver implements
forming a first refractive index distribution in the liquid crystal layer along a first perpendicular direction by setting the first electrodes to a first potential, the first perpendicular direction being parallel to the plane and perpendicular to the first direction, andforming a second refractive index distribution in the liquid crystal layer along a second perpendicular direction by setting the second electrodes to a second potential, the second perpendicular direction being parallel to the plane and perpendicular to the second direction; and an image displayer that includes a plurality of subpixels, light from the subpixels being incident on the liquid crystal layer, the light including image information, wherein each of the subpixels has a first length along a third direction and a second length along a fourth direction when projected onto the plane, the third direction is parallel to the plane and different from the first direction and the second direction, the fourth direction is parallel to the plane and perpendicular to the third direction, the first length is shorter than the second length, most proximal electrodes of the first electrodes include a first most proximal electrode and a second most proximal electrode, most proximal electrodes of the second electrodes include a third most proximal electrode and a fourth most proximal electrode, and a first distance along the third direction between a first center in the first perpendicular direction of the first most proximal electrode and a second center in the first perpendicular direction of the second most proximal electrode is shorter than a second distance along the fourth direction between a third center in the second perpendicular direction of the third most proximal electrode and a fourth center in the second perpendicular direction of the fourth most proximal electrode.