| CPC G02B 30/28 (2020.01) [G02F 1/133526 (2013.01); G02F 1/133531 (2021.01); G02F 1/134363 (2013.01)] | 19 Claims |
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1. A three-dimensional display device comprising:
a display panel which operates in a first mode for displaying a first image that is an image for one person or a second mode for displaying a second image that is an image for multiple persons and different from the first image; and
a liquid crystal lens panel disposed on the display panel, wherein the liquid crystal lens panel refracts the first image in a way such that the first image has a first viewing angle and refracts the second image in a way such that the second image has a second viewing angle greater than the first viewing angle,
wherein the liquid crystal lens panel includes:
an upper substrate including a common lens electrode;
a first lens layer disposed under the upper substrate, wherein the first lens layer includes a plurality of first lenses;
a lower substrate disposed to face the upper substrate, wherein the lower substrate includes a lens electrode;
a second lens layer disposed on the lower substrate, wherein the second lens layer includes a plurality of second lenses; and
a liquid crystal layer disposed between the lower substrate and the upper substrate,
wherein a first pitch of each of the plurality of first lenses is less than a second pitch of each of the plurality of second lenses,
wherein a voltage is not applied to the common lens electrode and the lens electrode in the first mode, and the first image is refracted in the first lens layer in the first mode and displayed at the first viewing angle, and
wherein a voltage is applied to the common lens electrode and the lens electrode in the second mode, and the second image is refracted in the second lens layer in the second mode and displayed at the second viewing angle.
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