Patent ID: 9664912
Date: 2017-05-30
CPC Classifications: G02B,G02F,H04N

Claim:
1. An image display device comprising: a display panel; and a liquid crystal lens part disposed on the display panel and which selectively provides a two-dimensional image and a three-dimensional stereoscopic image, wherein the liquid crystal lens part comprises a first substrate, a second substrate, and a liquid crystal layer between the first and second substrates, wherein the liquid crystal lens part further comprises a first unit zone, a second unit zone adjacent to the first unit zone, and a boundary is defined between the first and second unit zones, wherein each of the first and second unit zones comprises a first layer and a second layer disposed on the first substrate as different layers, the first layer comprises a plurality of linear electrodes, and the second layer comprises a plurality of linear electrodes, wherein, in each of the first and second unit zones, the linear electrodes in the first layer and the linear electrodes in the second layer make a phase difference provided by the liquid crystal layer either continuously increase or continuously decrease when a voltage is applied thereto, wherein the linear electrodes in the first layer are alternately arranged with the linear electrodes in the second layer in each of the first and second unit zones, and wherein two adjacent linear electrodes, one of which is a linear electrode closest to the boundary among the linear electrodes in the first unit zone and the other of which is a linear electrode closest to the boundary among the linear electrodes in the second unit zone, respectively, are spaced apart from each other at a first interval when viewed from a top view, which is a plan view in a thickness direction of the liquid crystal lens part, or two adjacent linear electrodes closest to the boundary among the linear electrodes in the second unit zone are spaced apart from each other at a second interval when viewed from the top view.