公开(公告)号：US11360336B2

公开(公告)日：2022-06-14

申请号：US17131193

申请日：2020-12-22

Applicant: LG Display Co., Ltd.

Inventor： Seong-Il Kim ,  Sooyoun Kim ,  Junehwan Kim ,  Seokho Lee ,  Youngwook Ha

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/1334 ,  G02B5/02 ,  F21V8/00 ,  G02F1/13357

Abstract: Provided is a privacy protection film. The privacy protection film includes a transparent base substrate, a light control layer disposed on the transparent base substrate and including a plurality of optical pattern structures each having an upwardly protruding prism shape, a first electrode disposed on the light control layer, a second electrode spaced apart from the first electrode, and a variable light diffusion layer disposed between the first electrode and the second electrode and formed of a polymer dispersed liquid crystal (PDLC).