公开(公告)号：US20240192517A1

公开(公告)日：2024-06-13

申请号：US18233710

申请日：2023-08-14

Applicant: LG Display Co., Ltd.

Inventor： Junehwan Kim ,  Jungin Hwang

IPC: G02B27/28 ,  G02B5/22 ,  G02B5/30

CPC classification number: G02B27/288 ,  G02B5/22 ,  G02B5/3083

Abstract: A light path control device according to an embodiment includes a substrate; a first phase delay layer on the substrate that is configured to delay incident light by a first phase; a second phase delay layer on the first phase delay layer that is configured to delay incident light by a second phase that is different from the first phase; a viewing angle control layer that in direct contact with the second phase delay layer and configured to control a path of the incident light; and a polarization layer on the viewing angle control layer.