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:
Nov. 18, 2025
Filed:
Aug. 14, 2023
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventors:
Junehwan Kim, Paju-si, KR;
Jungin Hwang, Paju-si, KR;
Assignee:
LG Display Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/28 (2006.01); G02B 5/22 (2006.01); G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
G02B 27/288 (2013.01); G02B 5/22 (2013.01); G02B 5/3083 (2013.01);
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.