Electro-optical liquid crystal device

摘要

A liquid crystal (LC) lens comprises a first substrate, a first electrode structure, an electrically tunable LC layer structure, a second substrate and a second electrode structure, wherein the electrically tunable LC layer structure is arranged between the first substrate and the second substrate. The electrically tunable LC layer structure includes at least two LC layers stacked on top of one another, and each LC layer further includes at least one LC unit. In the stacked structure, at least one of the LC layers includes at least one partition unit to partition the LC layer into one or more LC units. The layout of the LC units of the upper LC layer differs from that of the lower LC layer. In the present invention, the shape and layout of the LC units are designed to provide better optical performance without changing the thickness of the liquid crystal lens.

主权项

1. A liquid crystal lens, comprises:
a first substrate; a first electrode structure arranged on said first substrate; an electrically tunable liquid crystal layer structure arranged below said first substrate and including at least two liquid crystal layers stacked on top of one another, wherein each said liquid crystal layer further includes at least one liquid crystal unit, and wherein at least one of said liquid crystal layers has at least one partition unit to separate said liquid crystal layer into one or more said liquid crystal units; and said partition unit and said liquid crystal unit are not overlapped in each said liquid crystal layer, and wherein a layout of said liquid crystal units of said liquid crystal layer arranged above is different from a layout of said liquid crystal units of said liquid crystal layer arranged below; a second substrate arranged below said electrically tunable liquid crystal layer structure; and a second electrode structure arranged on said second substrate.