The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 2022
Filed:
Dec. 22, 2020
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventors:
Seong-Il Kim, Paju-si, KR;
Sooyoun Kim, Seoul, KR;
Junehwan Kim, Seoul, KR;
Seokho Lee, Paju-si, KR;
Youngwook Ha, Seoul, KR;
Assignee:
LG DISPLAY CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/13 (2006.01); G02F 1/1335 (2006.01); G02F 1/1334 (2006.01); G02B 5/02 (2006.01); F21V 8/00 (2006.01); G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1323 (2013.01); G02F 1/1334 (2013.01); G02F 1/133504 (2013.01); G02B 5/0215 (2013.01); G02B 5/0247 (2013.01); G02B 5/0278 (2013.01); G02B 6/0051 (2013.01); G02B 6/0053 (2013.01); G02F 1/133606 (2013.01);
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).