公开(公告)号：US20230236436A1

公开(公告)日：2023-07-27

申请号：US18194080

申请日：2023-03-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young KIM ,  Soonbum KWON ,  Byonggwon SONG ,  Jungkwuen AN ,  Kanghee WON ,  Hongseok LEE ,  Jong-Young HONG

IPC: G02B30/25 ,  G02F1/1335

CPC classification number: G02B30/25 ,  G02F1/133528 ,  G02F1/133538

Abstract: A geometric phase optical element and a three-dimensional display apparatus including the same are provided. The geometric phase optical element includes: a liquid crystal layer; a first electrode on a surface of the liquid crystal layer; and a second electrode on another surface of the liquid crystal layer, wherein, when no voltage is applied to the first and second electrodes, the liquid crystal layer is configured such that a phase difference according to an arrangement of the liquid crystal is π and light transmitted through the liquid crystal layer is diffracted by a first deflection angle, and when a first voltage that causes the phase difference according to the arrangement of the liquid crystal to become π/2 is applied to the first and second electrodes, the liquid crystal layer is configured such that the light transmitted through the liquid crystal layer is diffracted by a second deflection angle.