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.

Date of Patent:
Sep. 15, 2026

Filed:

Nov. 10, 2022
Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventors:

Youngmin Oh, Yeosu-si, KR;

Jong Hoon Woo, Paju-si, KR;

Seong-Il Kim, Seoul, KR;

Yoonjung Eo, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13 (2006.01); G02F 1/1335 (2006.01); G02F 1/1337 (2006.01); G02F 1/1347 (2006.01); G02F 1/139 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1323 (2013.01); G02F 1/133531 (2021.01); G02F 1/1347 (2013.01); G02F 1/1393 (2013.01); G02F 1/133742 (2021.01); G02F 2202/04 (2013.01);
Abstract

A display device for switching a viewing angle, can include a display panel, a polarizing plate disposed on the display panel, a light path control cell disposed on the polarizing plate and including a liquid crystal layer, and a light path conversion film disposed on the light path control cell and including a plurality of molecules including a polarization alignment dye. An absorption axis of the polarizing plate can be substantially perpendicular to an absorption axis of the light path conversion film. The display device can switch to a shared mode or a shielding mode depending on whether or not a voltage is applied to the light path control cell, thereby providing the display device that switches its viewing angle effectively.


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Oh, Youngmin. (2026). Display device (U.S. Patent No. 12736839). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12736839

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